Drawing-Based Manufacturing

Mold Locating Rings, Reviewed Before Machining

Send your drawing for mold locating rings with DFM, critical-dimension review, process planning, and inspection aligned to your requirements.

Engineering-focused supply

Why Engineering Teams Specify SUUXIANG Mold Locating Rings

Drawing-led review connects machine interface requirements, process planning and inspection evidence before production commitments are made.

Drawing Review First

We review drawings, models, material requirements and application context to identify questions before quotation and production planning.

DFM for Machine Fit

Platen recess, sprue-bushing interface, mounting details and machining access are reviewed to support a practical locating-ring design.

Critical Dimensions Defined

Critical diameters, heights, concentricity and datum relationships are clarified so manufacturing and inspection share the same priorities.

Process Routes Planned

CNC machining, EDM, grinding and fitting are selected according to geometry, material condition, surface requirements and tolerance strategy.

Inspection Planning Aligned

Inspection methods and reporting expectations are agreed against the drawing and verified plan, with documentation matched to the order.

Revision Control Visible

Controlled communication keeps drawing revisions, technical decisions and delivery information visible throughout the manufacturing workflow.

Component Families

Precision Mold and Machined Component Families

Drawing-driven process routes for configurable tooling components, custom parts, and controlled inspection requirements.

CNC Machining Services

CNC Machining Services

Precision CNC machining services for drawing-based components requiring coordinated milling, turning, EDM, grinding, fitting, and inspection. RFQs should identify critical dimensions, material condition, quantity, surface requirements, and delivery priorities before the process route is confirmed.

Upload a Drawing
CNC Milling

CNC Milling

Custom CNC milling services for prismatic parts, plates, inserts, pockets, and complex machined features. Drawing review considers datum structure, cutter access, internal corners, machining allowance, clamping strategy, and the dimensions requiring inspection.

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CNC Turning

CNC Turning

Precision CNC turning services for shafts, pins, bushings, sleeves, rings, and rotational features. Provide diameters, concentricity or runout requirements, material and heat-treatment condition, surface criteria, and mating relationships so turning and secondary operations can be planned correctly.

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5-Axis Machining

5-Axis Machining

5-axis CNC machining supports multi-face geometry, angled features, contoured surfaces, and reduced re-clamping where the part geometry justifies it. Feasibility depends on tool access, workholding, datum strategy, material, tolerance requirements, and inspection approach.

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Swiss & Micro Machining

Swiss & Micro Machining

Swiss machining and micro machining support small-diameter, slender, and detail-intensive components such as pins, micro shafts, and connector-tooling features. Review focuses on material behavior, feature proportions, tolerances, burr control, handling, and measurement method.

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Wire & Sinker EDM

Wire & Sinker EDM

Wire EDM and sinker EDM services address hardened materials, narrow slots, sharp internal geometry, intricate profiles, and features inaccessible to conventional cutting tools. Electrode strategy, wire path, flushing, recast-layer considerations, and finishing requirements should be agreed before production.

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Precision Grinding

Precision Grinding

Precision surface and profile grinding supports controlled flatness, parallelism, profile accuracy, and finished dimensions after machining or heat treatment. Drawings should define datums, grinding stock, surface requirements, critical relationships, and inspection expectations.

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Mold Core & Cavity Inserts

Mold Core & Cavity Inserts

Precision mold core and cavity inserts are configurable around the molding geometry, material, heat-treatment sequence, cooling or venting needs, and interface dimensions. DFM review identifies machining access, EDM requirements, shrinkage-related context, and critical molded-part surfaces.

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Ejector & Ejection Components

Ejector & Ejection Components

Ejector pins, sleeves, and ejection components are produced to the specified fit, travel, guidance, and wear conditions of the mold design. Supply mating dimensions, material and treatment requirements, surface expectations, and any return or venting features affecting manufacture.

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Core Pins, Guide & Locating Components

Core Pins, Guide & Locating Components

Core pins, guide pins, and locating components establish alignment, positional control, and repeatable interfaces within a mold assembly. Requirements should clarify datum references, mating fits, hardness condition, wear surfaces, and whether grinding or EDM finishing is required.

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Slides, Lifters, Gates & Mold Accessories

Slides, Lifters, Gates & Mold Accessories

Mold slides, lifters, gates, and accessories are configured for mold motion, part release, material flow, and assembly interfaces. A complete drawing package should show travel relationships, mating components, critical clearances, material condition, and applicable finishing requirements.

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Connector Mold Components

Connector Mold Components

Precision connector mold components support tightly controlled cavities, pins, inserts, guide features, and mating geometry used in connector-tooling assemblies. Review should address fine features, pitch relationships, burr sensitivity, material, heat treatment, EDM strategy, and inspection criteria.

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Stamping Die Components

Stamping Die Components

Precision stamping die components include punches, dies, guide elements, inserts, and custom wear parts made to the drawing-defined strip, clearance, and assembly requirements. Material, heat treatment, edge condition, grinding stock, and mating dimensions guide the manufacturing route.

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Injection, MIM, CIM & Overmolding Tooling

Injection, MIM, CIM & Overmolding Tooling

Injection, MIM, CIM, and overmolding tooling components are evaluated against the specified process, molded material context, geometry, and tooling interfaces. Manufacturing planning considers cavity details, venting, gate requirements, insert conditions, heat treatment, and inspection needs within verified scope.

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Machining Materials

Machining Materials

CNC machining materials are selected from the drawing and application requirements, including machinability, strength, corrosion behavior, wear needs, heat-treatment response, and inspection considerations. Specify material grade, condition, approved substitution rules, and any traceability requirement.

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Surface Finishes & Heat Treatment

Surface Finishes & Heat Treatment

Surface finishing and heat treatment are planned as controlled stages that can affect dimensions, distortion, wear behavior, corrosion resistance, and surface condition. Define the required treatment or finish, sequence, masking needs, critical dimensions, and post-process inspection expectations.

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Quality, Metrology & Documentation

Quality, Metrology & Documentation

Precision inspection, metrology, and quality documentation are aligned to the drawing, critical-to-quality features, datums, and approved inspection plan. State reporting needs, sampling expectations, revision level, material records, and any measurement-method requirements with the RFQ.

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Prototyping & Low-Volume Production

Prototyping & Low-Volume Production

Rapid prototyping and low-volume manufacturing support drawing-based validation, bridge demand, tooling trials, and controlled repeat orders. To assess the route, provide models and drawings, quantity range, material, critical dimensions, inspection needs, revision status, and target delivery date.

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Material Selection

Material Options for Mold Locating Rings

P20 Tool Steel

P20 Tool Steel

A practical pre-hardened steel option for general mold locating rings and mold-base interfaces. It machines predictably and supports efficient drawing-driven work; specify required hardness, fit dimensions, and any corrosion-protection needs for review.

H13 Tool Steel

H13 Tool Steel

A hot-work tool steel considered for locating rings exposed to elevated mold temperatures or demanding service conditions. Its heat-treatment route, final hardness, grinding allowance, and distortion control should be agreed from the project drawing.

S50C Carbon Steel

S50C Carbon Steel

A medium-carbon steel commonly considered for cost-conscious mold-base and locating applications with defined machining requirements. It offers a balanced machining route, while surface protection, heat treatment, and critical fit tolerances require project-specific review.

420 Stainless Steel

420 Stainless Steel

A corrosion-resistant stainless option for mold locating rings used where moisture, storage conditions, or material contact warrant added protection. Machining condition, heat-treatment requirement, and surface finish should be specified before process planning.

4140 Alloy Steel

4140 Alloy Steel

An alloy-steel option for locating components requiring a defined balance of strength and machinability. The drawing should identify the heat-treatment condition, concentricity priorities, and grinding stock so the process route and inspection plan align.

Process Routes

Mold Locating Rings Manufacturing Processes

Wire EDM

Wire EDM

Wire EDM is considered for precise internal profiles, slots and features where conventional cutter access is limited. The wire path, start-hole requirements and final geometry are planned against drawing datums.

Sinker EDM

Sinker EDM

Sinker EDM supports cavities, deep details and complex local features requiring controlled electrode strategy. Electrode design, spark allowance and downstream finishing requirements are defined before the process route is confirmed.

Fitting Assembly

Fitting Assembly

Fitting checks the relationship between the locating ring, mold plate, sprue-bushing interface and related components. Functional mating conditions are reviewed against supplied assembly information before final acceptance.

Dimensional Inspection

Dimensional Inspection

Inspection verifies agreed critical dimensions, datums and surface requirements using the order-specific inspection plan. Reports and traceability records are prepared to match the confirmed drawing revision and quality documentation needs.

Configurable Additions

Mold Locating Rings Accessories

Mounting Fasteners

Mounting Fasteners

Socket-head screws or specified fastening hardware can be supplied with mold locating rings when the drawing defines thread, head clearance, material, coating, and assembly access requirements.

Dowel Features

Dowel Features

Dowel holes, pins, or mating location features support repeatable ring orientation where runner layout, sprue-bushing position, or mold-base assembly requires controlled angular registration.

Sprue Bushings

Sprue Bushings

Matched sprue bushings may be planned alongside the locating ring when nozzle interface, bore geometry, seating relationship, material, and heat-treatment sequence are defined in the assembly data.

Identification Marking

Identification Marking

Part numbers, revision marks, orientation references, or traceability labels can be considered when marking location, method, legibility, and inspection requirements are provided with the order.

Protective Packaging

Protective Packaging

Protective packaging can be specified for finished components to help preserve critical surfaces during shipment, particularly where ground faces, precision bores, coatings, or matched sets require handling control.

Established 2010

About SUUXIANG Precision Manufacturing

SUUXIANG is the international-facing brand of Dongguan SuuXiang Precision Mold Co., Ltd., established in 2010 in Chang’an Town, Dongguan, Guangdong, China. XiaoCheng Huang is the founder and legal representative. We help global engineering, sourcing and quality teams turn drawings and specifications into inspected CNC-machined parts, precision mold components, connector tooling and stamping-die components.

For mold locating rings and related tooling components, our work begins with the drawing, 3D model, material, quantity, application and quality requirements. DFM discussion focuses on critical dimensions, datums, machining access, EDM or grinding needs, heat-treatment sequence and the inspection method before production commitments are made.

Our difference is disciplined process coordination across CNC milling and turning, multi-axis machining, EDM, grinding, fitting and inspection. We keep revision, inspection and delivery requirements visible throughout the project, so the final documentation aligns with the order and the agreed inspection plan.

2010
year established
Dongguan, China
manufacturing base
Drawing-driven
project workflow
About SUUXIANG Precision Manufacturing
Engineering Review and Production Control

Mold Locating Rings: Core Capabilities Explained

Machine Interface Review

Before quotation, SUUXIANG reviews mold locating rings against the mold-base drawing and available machine-interface data. The goal is to identify fit-critical diameters, ring height, mounting details, and sprue-bushing relationship before a process route or delivery commitment is proposed.

  • Confirm stationary-platen locating diameter and counterbore interface
  • Review ring height, mounting-hole pattern, and screw specification
  • Check sprue-bushing centerline and nozzle-interface requirements
  • Flag missing machine, mold-base, or mating-component data
Machine Interface Review

CNC, EDM, and Grinding Planning

The manufacturing route is selected from the drawing, material condition, geometry, and critical surfaces. CNC machining establishes accessible features, while EDM or precision grinding is considered where geometry, finish, heat-treatment sequence, or dimensional control requires a different approach.

  • Assess tool access and practical machining sequence
  • Identify wire-EDM, sinker-EDM, or grinding needs early
  • Plan stock allowance around heat treatment and finishing
  • Keep feature relationships visible across each process handoff
CNC, EDM, and Grinding Planning

Critical Dimensions and Datums

A locating ring is part of the mold-to-machine interface, so its function depends on more than nominal dimensions. SUUXIANG uses drawing review to clarify datums, concentricity relationships, contact surfaces, and tolerances that affect mounting, alignment, and assembly with adjacent mold components.

  • Identify critical OD, ID, height, and mounting dimensions
  • Confirm drawing datums before inspection planning
  • Review concentricity and runout requirements where specified
  • Separate functional requirements from noncritical dimensions
Critical Dimensions and Datums

Inspection and Revision Traceability

Inspection planning is aligned to the accepted drawing revision and agreed quality requirements. For mold locating rings, the appropriate measurement method and reporting scope are defined before production so dimensional results, material requirements, and revision status can be documented against the order.

  • Match inspection points to critical drawing requirements
  • Confirm report format and documentation needs before release
  • Maintain revision visibility through production coordination
  • Provide order-aligned inspection documentation as agreed
Inspection and Revision Traceability
Engineering-Led Comparison

Why Choose SUUXIANG for Mold Locating Rings?

A drawing-led workflow for custom parts where fit, revision control, and inspection evidence matter.

SUUXIANG
Supplier Evaluation Checkpoints
Drawing review
✓ DFM before production planning
✕ Ask how drawing review is documented
Critical dimensions
✓ CTQs identified with customer
✕ Ask how CTQs are confirmed
Datum strategy
✓ Datums reviewed before machining
✕ Ask which datums govern inspection
Machining access
✓ Tool access assessed early
✕ Ask when access constraints are reviewed
EDM planning
✓ Electrode and wire paths reviewed
✕ Ask how EDM strategy is communicated
Grinding allowance
✓ Grinding stock planned deliberately
✕ Ask how finishing allowance is defined
Revision control
✓ Revisions kept visible throughout
✕ Ask how revisions are controlled
Inspection planning
✓ Methods match verified requirements
✕ Ask which inspection methods and records apply
Project communication
✓ Traceable manufacturing updates
✕ Ask how technical updates are recorded

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Drawing-Driven Project Flow

Mold Locating Rings Manufacturing Process

A controlled workflow from drawing review through inspection, packing and delivery coordination.

Phase 1

Review the RFQ

We review the 2D drawing, 3D model, quantity, application, material, delivery target and inspection requirements before defining a workable quotation basis.

Phase 2

Confirm Critical Requirements

The project discussion identifies critical dimensions, datums, surface requirements, machine interface details, tolerance stack risks and revision-control expectations for the locating ring.

Phase 3

Plan Material and Process

Material, heat-treatment sequence, machining allowances and the appropriate CNC, EDM, grinding and fitting route are planned against the approved drawing requirements.

Phase 4

Machine and Finish Parts

Production follows the defined process route, using machining, wire EDM, sinker EDM and grinding where geometry, access and finish requirements call for them.

Phase 5

Inspect Against the Plan

Completed mold locating rings are checked against the order-specific inspection plan, with measurement methods and required documentation aligned before release.

Phase 6

Pack and Coordinate Delivery

Approved parts are packed for shipment with revision and delivery information kept visible, supporting clear receiving checks and project coordination at your facility.

Project Workflow

How to Work With SUUXIANG

Move mold locating rings from drawing review to documented delivery through a controlled, drawing-driven process.

1

Submit Your Drawing Package

Provide 2D drawings, available 3D models, material, quantity, machine-interface details, critical dimensions, inspection needs, and target delivery date for initial review.

2

Clarify Technical Requirements

Review datum strategy, locating diameter, ring height, mounting pattern, sprue-bushing interface, tolerances, surface requirements, heat treatment, and measurement method before commitments.

3

Confirm Quote or Sample

Align the proposed process route, machining and grinding allowances, EDM needs, inspection scope, revision status, commercial terms, and sampling requirements with your project priorities.

4

Release Controlled Production

After approval, SUUXIANG coordinates CNC machining, EDM, grinding, fitting, and in-process checks according to the released drawing and agreed inspection plan.

5

Receive Inspected Parts

Receive mold locating rings with delivery information and order-matched inspection documentation, while revision records and any agreed reporting remain visible through project completion.

Quality Evidence

Certification and Quality Documentation for Mold Locating Rings

Current Certification Record
Certificate of Conformance
Dimensional Inspection Report
Material and Heat-Treatment Record
Material and Heat-Treatment Record
Customer Feedback and Project Examples

Customer References, Published Only With Approval

Approved customer testimonial pending: publish only after the customer confirms the project outcome, measurable result, attribution, and permission to share the reference.

Customer reference pending

Approved case example pending: confirm drawing revision, inspection outcome, delivery metric, customer attribution, and written permission before presenting this result publicly.

Customer reference pending

Approved customer testimonial pending: verify the engineering or sourcing result, supporting project record, named contact, and publication approval before adding it to this section.

Customer reference pending
Buyer Questions

Mold Locating Rings FAQ

Practical guidance for preparing a drawing-led quotation, production review, and inspection plan.

What information should I send for custom mold locating rings?
Send the 2D drawing and, when available, a 3D model. Identify machine locating diameter, ring OD, ID, height, mounting pattern, sprue-bushing or nozzle interface, material, heat treatment, quantity, and delivery target. Note critical dimensions, datums, surface requirements, and any mating-component constraints so the drawing review can assess fit before quotation.
Can SUUXIANG manufacture mold locating rings from my drawing?
SUUXIANG reviews drawing-based mold locating rings as configurable precision components, not assumed catalog items. The review considers geometry, machining access, material condition, heat-treatment sequence, grinding allowance, critical dimensions, and inspection needs. Quotation and production commitments follow confirmation that the requested process route and quality requirements are within the verified project scope.
What material and heat-treatment details are needed for mold locating rings?
Specify the required material grade, supplied condition, target hardness or heat-treatment requirement, and any corrosion, wear, or surface-finish priority. If heat treatment is involved, identify which dimensions are critical after treatment. This lets the manufacturing plan account for distortion risk, machining allowance, grinding stock, and final inspection strategy.
Is there a minimum order quantity for custom locating rings?
Quantity is evaluated with the drawing and process requirements rather than assumed from a fixed public MOQ. Prototype, replacement, and low-volume requests may require different setup, material, and inspection planning than repeat production. Include annual demand if known, but provide the immediate order quantity so the quotation reflects the actual manufacturing route.
Can I order samples before production of mold locating rings?
A sample or first-piece approach can be discussed when the drawing, application, and acceptance criteria are clear. Define the dimensions to verify, required report format, material and heat-treatment condition, and whether the sample represents the final production route. This reduces ambiguity before a larger release, especially where machine interface and mating details are critical.
How is lead time evaluated for a custom locating ring order?
Lead time is evaluated after drawing review, not assumed from a generic promise. The assessment considers material availability, machining complexity, EDM or grinding needs, heat-treatment sequence, inspection scope, quantity, approved revisions, and shipping destination. Providing a target delivery date early helps identify schedule risks and determine whether the requested route is feasible.
What inspection reports can be requested with mold locating rings?
Request the inspection evidence required by your order, such as dimensional results for specified critical features, material or heat-treatment documentation when applicable, and traceable part or revision identification. The drawing should clearly distinguish critical-to-quality dimensions, datums, tolerances, and measurement expectations. Final documentation should match the agreed inspection plan rather than a generic report template.
How are drawings and IP-sensitive mold component documents handled?
For IP-sensitive work, provide only the documents needed for a controlled quotation and manufacturing review, and identify confidentiality, revision-control, and distribution requirements at the outset. Use clear file names and revision levels for drawings, models, specifications, and inspection instructions. The project discussion should confirm the current controlled documentation before production begins.
Buyer’s Guide

The Complete Buyer’s Guide to mold locating rings

Use this decision framework to specify compatible mold locating rings, assess drawing-based CNC suppliers, compare design and quality criteria, and avoid fitment, tolerance, documentation, and sourcing mistakes before tooling release.

1. What Are mold locating rings?

3.990 in. is a common inch-series locating-ring outside diameter, intended to seat in the stationary-platen recess and register the injection-side mold. By centering that mold interface, the ring helps place the machine nozzle concentrically with the sprue-bushing entrance so melt can enter without a nozzle-to-sprue offset; see https://www.dme.net/Pages/BuyLocatingRings.php.

Two separate interfaces must fit: the ring OD to the platen recess, and the ring’s mounting/central geometry to the mold’s sprue-bushing area. A loose, damaged, incorrect-height, or nonmatching ring can leave the nozzle poorly supported or off-center, increasing the risk of leakage, sprue damage, setup correction, and inconsistent processing.

One locating ring does not align mold halves or form plastic. Cavity alignment components and guide pillars control relative position of the moving and fixed mold halves; the sprue bushing provides the melt-flow passage. For a drawing review, identify the intended press recess, nozzle and sprue-bushing interface dimensions, mold-base datum, mounting pattern, and any insulation plate before the ring is manufactured.

2. Evolution of mold locating rings

3.990 in is a common locating-ring diameter in DME’s current catalog, illustrating how mold-base components became tied to repeatable stationary-platen interfaces rather than being treated as isolated machined parts. As standardized mold bases spread, ring OD, height, center opening, and mounting pattern became interface dimensions that purchasers must preserve. Source: https://www.dme.net/Pages/BuyLocatingRings.php

100 mm is a commonly used metric locating-ring size, while inch-series parts remain common in other mold-base ecosystems; similar nominal sizes are not automatically interchangeable. A global RFQ should therefore identify the controlling drawing units, platen recess, mold-base family, screw pattern, and sprue-bushing relationship. Source: https://ckmold.com/what-are-the-standard-sizes-for-injection-mold-locating-rings

7/32 in appears as a counterbore-depth convention in legacy-oriented locating-ring guidance, showing why machine age and installed tooling still affect replacement decisions. Before sourcing, verify the actual press interface and mold drawing rather than assuming a current metric or inch catalog ring will fit an older machine. Source: https://prototool.com/location-ring

3. Types of mold locating rings

Six configurations cover most mold-base and press interfaces. Select from the machine platen recess, clamp-plate counterbore, insulation-stack thickness, and sprue-bushing geometry—not nominal diameter alone. https://www.dme.net/Pages/BuyLocatingRings.php

ConfigurationInterfaceBest FitMain Trade-Off
StandardSingle OD, screwsMatched mold baseLeast adaptable
SteppedTwo OD shoulderOpening transitionDepth sensitivity
ExtendedLong lead-inDeep platen recessInsulation conflict risk
AdapterMultiple diametersSeveral press interfacesMore stack-up checks
IntegratedSprue-bushing assemblyCompact moldService replacement coupling
CustomDrawing-definedNonstandard interfaceRequires full interface data

Standard And Stepped Rings

Standard rings screw to the injection-side clamp plate and register one platen opening; they suit matched mold-base and machine standards.

Stepped rings add a second OD to bridge interfaces. Verify shoulder seating, counterbore depth, screw pattern, and clearance before choosing adaptability over simplicity.

Extended And Adapter Rings

Extended or tapered lead-in rings project farther into the platen recess, helping setup on deep or less accessible interfaces.

Multi-diameter or adapter-style rings accommodate alternate openings. Check that an insulation sheet does not consume engagement length; extra interfaces increase stack-up and service checks.

Integrated And Custom Designs

Integrated sprue-bushing rings combine the locating and flow-entry interfaces, reducing separate parts on compact molds.

Custom drawing-based designs address nonstandard platens, insulation, nozzle envelopes, or maintenance access. Define datums, concentricity, fasteners, removal method, and inspection requirements before release.

4. Materials and heat treatment

Two service conditions drive material selection: repeated platen contact and the molding environment. Carbon or alloy tool steels and stainless options should be specified from the drawing, not assumed from ring geometry.

Operating EnvironmentService PriorityMaterial And Treatment Consideration
Dry, routine moldingMachinability and moderate wearCarbon or alloy tool steel; specify finish and hardness condition
High cycle or abrasive exposureWear resistanceAlloy tool steel; define treatment sequence and grinding allowance
Humid or corrosive exposureCorrosion resistanceStainless option; confirm hardness, finish, and compatibility
Elevated thermal demandDimensional stabilitySelect grade and treatment from actual temperature and load data

Match Material To Service

Repeated installation favors a steel and hardness strategy that resists bore and face wear without making machining or later correction impractical.

Corrosive cooling, humid storage, or resin byproducts may justify a stainless option; corrosion resistance does not replace dimensional control or surface-finish requirements.

Define Treatment And Records

Heat treatment must state the required condition, sequence, and permitted distortion response before finish grinding. A hardness value alone cannot define performance.

Inspection records should identify material certificate, heat-treatment batch, final hardness method, and drawing revision where the order requires traceability.

5. Custom mold locating rings specifications

Two interfaces govern a custom ring: the mold assembly and the molding-machine stationary platen. SUUXIANG converts those interface records into a drawing-controlled CNC, EDM, grinding, and inspection route.

Interface Dimensions

Custom Stepped Side-Channel Mold Block — representative custom component view 2

Three primary dimensions—OD, ID, and overall height—must be confirmed against the platen recess, nozzle or sprue-bushing relationship, and clamp-plate counterbore. A shoulder, step, or lead-in needs its own diameter, depth, and mating-face requirement.

  • Platen recess diameter and usable depth
  • Sprue-bushing or nozzle clearance
  • Counterbore diameter, depth, and flatness

Mounting And Datums

Two datum references should establish measurement: the mold-contact face as primary and the ring axis as secondary. Specify mounting-hole pattern, thread or clearance-hole details, screw-head access, concentricity requirements, and any clocking feature.

  • Mounting-hole pitch circle and quantity
  • Fastener size, engagement, and access
  • Datum-linked OD, ID, and face tolerances

Material And Acceptance

One released drawing should state material, heat treatment, surface finish, edge-break limits, part marking, and revision. Define inspection methods for critical diameters, height, hole location, and runout, then require records matched to the approved revision.

  • Material and heat-treatment condition
  • Marking location and revision identity
  • Inspection report and sampling requirement

6. Quality elements for mold locating rings

Functional quality begins by defining the locating diameter, mounting face, and central bore or sprue interface as related datums. A ring can meet individual size limits yet mislocate the mold when concentricity, face runout, or seating conditions are not controlled together.

Datum-Based Geometry

Total indicated runout should be measured from the locating diameter to the mounting-face datum, with the setup stated on the inspection record. Specify concentricity or positional control for the bore only when it is functionally related to the nozzle or sprue-bushing axis.

  • Locating OD and its fit condition
  • Mounting-face flatness and runout
  • Bore axis relative to the selected datum

Installation Surface Condition

Burr-free screw holes, controlled thread engagement, and a defined edge break prevent false seating and assembly damage. Require the drawing to identify usable thread standard, depth, countersink or counterbore geometry, and any protected nonfunctional edges.

  • No raised burrs on seating faces
  • Clean thread start and full engagement
  • Specified edge break, not sharp edges

Material And Inspection Evidence

Heat treatment, corrosion protection, and final measurements should be traceable to the ordered part revision. Request first-article dimensional results, material documentation when required, heat-treatment evidence where specified, coating details, and the inspection method used for critical features.

  • Part number and drawing revision
  • Measured critical dimensions and datums
  • Material and treatment documentation
  • Inspection date and acceptance status

7. Choosing a mold locating rings supplier

Two supplier types serve different jobs: catalog sources suit standard interfaces, while drawing-based CNC suppliers suit nonstandard geometry, tolerances, materials, or documentation. Compare the evidence returned before comparing unit price.

Supplier TypeBest FitBuyer Evidence
Catalog sourceStandard ring and known interfacePart number, dimensions, availability
Drawing-based CNC supplierCustom geometry or controlled tolerancesDFM response, inspection plan, revision control
Hybrid sourcingStandard base with custom adaptationInterface ownership and assembly checks

Test The Drawing Review

Five questions expose DFM quality: Which dimensions are CTQ, what datum controls runout, which features need grinding, what heat-treatment sequence applies, and how will the ring be inspected? A useful response identifies assumptions and manufacturability risks.

Require Process Evidence

Three records should align: process route, material and heat-treatment traceability, and inspection plan. Ask whether CNC, EDM, grinding, and final measurement are assigned to the drawing revision.

Control Approval And Changes

One first-article or sample workflow should define acceptance dimensions, report format, and disposition of deviations. Revision-controlled drawings, labeled packaging, realistic lead-time milestones, and a named quality-escalation path prevent avoidable receiving delays.

8. Common mold locating rings mistakes

A locating-ring mismatch often appears only during mold setup, when nozzle alignment and platen engagement are already at risk. Prevent it by verifying the complete machine-to-mold interface before release.

Nominal Diameter Assumptions

A 100 mm or 3.990 in. callout alone does not confirm fit. Verify actual platen recess diameter, tolerance, and the ring’s locating land before ordering.

Depth And Stack Errors

A shallow counterbore or added insulation sheet can reduce usable engagement. Confirm recess depth, ring height, clamp-plate thickness, and every insulation layer in section view.

Standard And Mounting Gaps

DME-style inch and metric patterns can share a similar nominal diameter but differ in details. State the governing standard, units, screw size, hole pattern, shoulder, and mounting direction.

Drawing And Inspection Omissions

Unclear datums and excessive tolerances create avoidable machining cost or assembly uncertainty. Identify functional dimensions, inspect OD, height, concentricity, and mounting features against the approved drawing at receipt.

9. From RFQ to production approval

1 controlled launch package prevents a locating-ring purchase order from drifting away from the press and mold interface. SUUXIANG can review drawing-based requirements when the mating details and acceptance evidence are supplied.

Capture Interface Data

1 RFQ should identify press platen recess, nozzle and sprue-bushing interface, clamp-plate thickness, mounting pattern, and assembly orientation. Include photographs or models where legacy tooling lacks reliable records.

  • Machine and mold-base standard
  • Critical diameters and datums
  • Mating-component revision

Freeze The Technical Package

1 released drawing revision should define material, heat treatment, surface condition, tolerances, quantity forecast, and required inspection report. Request DFM feedback on tool access, EDM or grinding needs, and measurable datums before production.

  • 2D drawing and 3D model
  • CTQ dimensions and gauges
  • Forecast plus target delivery

Approve And Release Production

1 first article should be checked against the agreed drawing and inspection plan before repeat production release. At receiving, verify revision, quantity, identification, critical dimensions, treatment documentation when specified, and damage-free fit with the mating mold components.

  • Approve deviations in writing
  • Lock revision control
  • Record receiving results

10. mold locating rings pricing and cost

1-piece prototype orders concentrate setup, programming, first-article inspection, and expedited coordination into few units; a request should therefore compare total job cost and readiness date, not a presumed unit price. A complete 2D drawing, 3D model, material, hardness, datum scheme, and report requirement shortens clarification cycles.

2 or more compatible part numbers can often share material procurement, setups, heat-treatment planning, and inspection preparation when revisions and critical features are clearly separated. SUUXIANG should confirm the process route and documentation scope against the drawing before issuing a project-specific quotation.

Quote-request factorIllustrative fields to provideCost and lead-time effect
1–5 piecesPrototype or replacement; target dateSetup and first-article effort dominate
6–50 piecesCompatible part numbers; revision listBatching can reduce repeated setup work
Material and heat treatmentSteel grade, hardness, sequence, certificate needProcurement and post-machining allowance change
Geometry and toleranceOD/ID, concentricity, screw pattern, datum, tolerancesCNC, EDM, grinding, and inspection route change
Finish and documentationSurface finish, coating, inspection report, traceabilityAdditional operations and release records add cost
Production timingPrototype, pilot, or repeat production; required deliveryExpedite requests may constrain process scheduling

Quote Mold Locating Rings From Your Drawing

Upload 2D drawings, optional 3D models, material, quantity, quality requirements, and target delivery date for a disciplined review.