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Mold Tooling Manufacturing Services

Jingxin Precision provides end-to-end custom mold tooling services, covering mold design, steel selection, precision machining, texture etching, mold assembly, trial testing and mold optimization. We deliver reliable injection molds, stamping dies and bridge tooling, supporting prototype validation through high-volume mass-production tooling.

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Process Capabilities

Jingxin Precision operates a full-service in-house mold workshop equipped with high-speed CNC milling machines, EDM spark machines, slow-feed wire-cut EDM, precision grinders and texture etching equipment. We build single-cavity to multi-cavity molds, insert-mold, overmold and two-shot molds. Complex structures including sliders, lifters, hot-runner systems can be fully completed in-house to control quality, precision and project timeline.

Basic Mold Tooling Processes

Extended / Precision Processes

Mold Structure Design: 3D mold layout, parting surface, gating, cooling system, ejection and mechanism design.

Moldflow Simulation: Plastic flow, cooling time, warpage and sink-mark prediction for design risk mitigation.

Steel Machining: CNC rough & finish milling, EDM, slow wire cutting, surface grinding.

Heat Treatment: Hardening and tempering to achieve target steel hardness for required mold life.

Polishing & Texture Etching: SPI / VDI grain etching, from matte texture to mirror surface finish.

Mold Assembly & Fitting: Fit core-cavity, install sliders, lifters, ejection and hot-runner components.

Mold Trial & Revision: T1-T3 mold trials, sample evaluation, defect correction and structural optimization.

Bridge Rapid Tooling: Aluminum or pre-hardened steel rapid molds for short-run pre-production validation.

Applicable Project Stages

Mold tooling serves mid-to-late-stage product development cycles

Proof of Concept

Not recommended for early concept phase. Use CNC, 3D-printing or vacuum casting for low-cost appearance validation.

Functional Validation

T1 trial-out samples from prototype-grade tooling for real-material functional and durability testing.

Assembly Validation

Stable mold-produced samples for fit clearance checking, assembly interference verification.

Appearance Samples

Mold-etched SPI / VDI textures available for marketing and customer-approval samples.

Small-Batch Pilot Production

Bridge tooling supports pilot runs before full hard-steel mass-production mold completion.

Mass Production

Hardened production-grade mold for high-volume continuous manufacturing with long service life.

Materials Capabilities

We select mold steel according to part material, surface requirement and expected mold life:

Injection Mold Steels

P20, NAK80, S136, S136H, H13, 718H, pre-hardened & quenched-tempered steel grades.

Stamping Die Steels

Cr12MoV, SKD11, D2, A2 for sheet-metal stamping and forming dies.

Rapid Bridge Tooling Materials

7075 aluminum alloy, QC-10 aluminum for short-cycle, low-shot-count prototype molds.

Tolerances and Surface Quality

Dimensional Tolerances

Standard mold cavity tolerance: ±0.02 mm Precision mold cavity tolerance: ±0.005 ~ ±0.01 mm Critical features can achieve micron-level accuracy depending on steel grade and machining process.

Angular Tolerance

±0.25° for mold core-cavity mating surfaces.

Surface Quality

As-machined mold surface: Ra 0.4-1.6 μm

Polished finish: Ra 0.025 μm mirror polish

Texture finish: customizable per SPI or VDI standard grain specifications.

Post-treatment and Surface Finishing Services for Molds

Complete mold post-processing to meet production and cosmetic requirements.

Heat Treatment

Quenching, tempering for target hardness and wear resistance.

Polishing

Manual & mechanical polishing from fine matte to mirror finish.

Texture Etching

SPI-VDI standard grain, custom logo and pattern etching on cavity surfaces.

Mold Surface Coating

TiN, TiCN coating for anti-wear and anti-corrosion improvement.

Mold Repair & Modification

Weld repair, cavity modification for product design revisions.

Process Selection Guide

When to Choose Custom Mold Tooling?

Choose Mold Tooling when you need:

High-volume repeatable part production above 1000 pieces.

Stable dimensional consistency, mass-production durability and long service life.

Mass-produced parts with custom surface textures, complex undercuts, insert-molding or two-shot requirements.

Consider CNC Machining when your parts:

Low-volume runs 1-500 pcs, no tooling budget, fast prototype turnaround.

Consider Vacuum Casting when your parts:

10-50 cosmetic samples, no investment in hard mold tooling.

Consider 3D Printing when your parts:

Very small quantity (1-5 units), frequent design iterations, complex internal geometry.

Mold Tooling Design Guidelines

Follow these principles to reduce mold complexity, lower cost and shorten lead-time:

Cavity Layout: Balance cavity quantity, part size and expected output volume. Multi-cavity preferred for high-volume orders.

Gate Location: Optimize gate position to avoid weld-lines, air traps and visible gate marks on cosmetic surfaces.

Cooling System: Design adequate cooling channels close to cavity surface for uniform cooling and shorter cycle time.

Undercut Mechanism: External / internal undercuts require sliders or lifters; large deep undercuts raise mold cost and complexity.

Draft Angle: Reserve sufficient draft angle, add extra draft for textured cavity surfaces to prevent drag-marks.

Mold Steel Selection: Match steel hardness and corrosion-resistance to plastic material, abrasive filler and surface requirements.

Delivery Time and Logistics Services

Standard Delivery Time

Simple single-cavity injection mold: 15-25 business days to T1 samples. Complex multi-cavity / hot-runner / two-shot mold: 25-40 business days. Stamping die: 18-30 business days.

Expedited Service

Fast-track mold development available upon request, subject to design complexity and workshop capacity.

International Logistics

Cooperate with DHL, UPS, FedEx, TNT for global door-to-door delivery.

Packaging Standards

Anti-rust oil coating, moisture-proof wrapping, fumigation-free heavy-duty wooden crate for long-distance safe transportation.

Quality Assurance and Testing System

Quality control runs through full mold development workflow

DFM & Moldflow Simulation

Feasibility analysis and flow simulation before steel cutting.

First Article Inspection after Machining

Full dimensional measurement of core-cavity components by CMM.

Mold Assembly Inspection

Check fit, movement of sliders, lifters and ejection systems.

T1-T3 Mold Trial Testing

Sample dimensional inspection, appearance evaluation and defect analysis.

Auxiliary Inspection Equipment

CMM, 2.5D image measuring instrument, hardness tester, roughness tester.

Material Traceability

Original mold steel mill certificates available for every tool.

Quality System and Certification

When to Choose?

ISO 9001:2015 Quality Management System Certification.

IATF 16949:2016 Quality Management System Certification.

ISO 14001 Environmental Management System (Optional/Validation).

All testing equipment is regularly calibrated by third-party metrology to ensure data accuracy.

ISO 9001 Certificate

ISO 14001

CE Rohs

Typical Industry Applications

Our custom mold tooling is widely applied across multiple industries

Consumer Electronics

Housing molds, cover molds, button and internal-component injection molds.

Automotive

Interior-trim molds, instrument-part molds, automotive accessory tooling.

Home Appliances

Household appliance casing, control-panel and accessory molds.

Medical Devices

Non-implant medical-equipment housing and instrument-part molds.

New Energy

Energy-storage component molds, charging-equipment housing tooling.

Industrial Equipment

Enclosure molds, stamping dies for sheet-metal cabinet structural parts.

Sample and Quotation Policy

Free DFM Assessment

Upon receipt of your CAD files (STEP / IGS / XT format), we deliver manufacturability feedback and detailed quotation within 4 hours. Quotation covers mold steel selection, tooling cost, estimated mold life and lead-time.

Sample Fee Policy

Mold trial-out sample cost can be partially or fully deducted from subsequent mass-production orders for standard-specification projects.

Confidentiality Commitment

A non-disclosure agreement (NDA) may be signed prior to formal drawing review to fully safeguard your intellectual property and design data.

Ready To Work With Us?

If you have any enquiries, please feel free to reach out to us.

GET IN TOUCH VIEW PRODUCTS

Shenzhen Jingxin Precision Technology Co., Ltd.

LYF@xjingxin.com

+86 28456129

+44 074 4462 9011

+86 135 0156 7685

No. 68, Dacaopu Second Road, Pinghu Subdistrict, Longgang District, Shenzhen City, Guangdong Province, P.R.China

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