100% Customization per Drawing

Custom Mold Inserts

Custom cavity, core and slide inserts machined to your 2D/3D CAD drawing — ±0.005 mm (0.0002 in) accuracy, certified P20 / H13 / NAK80 / S136 / SKD61 steels, mirror EDM polish, conformal cooling and wedge-lock options, CMM & optical FAI report with every insert, MOQ 1.

Cavity inserts, core inserts, sub-inserts, slide cores & angled lifters machined to STEP / IGES / DWG / PDF drawings
±0.005 mm (0.0002 in) machining accuracy — critical features to ±0.002 mm, CMM & optical FAI verified
Certified tool steels: P20, H13, NAK80, S136, SKD61 — plus beryllium-copper alloy for hot-spot cooling
Mirror EDM polish (Ra 0.02) and VDI 3400 texture options for cosmetic and optical surfaces
Conformal, baffled and bubbler cooling channels; 3–10° wedge locks, heel blocks and dowel-pin alignment
MOQ 1 piece — 24h DFM & quote, standard 3–7 days, custom 7–10 days, rush 24–72 h

Download CAD / Specs

Fast Response within 2 HoursSupport STEP, IGES, DWG, PDF Files

Technical Specifications

Custom Mold Inserts Technical Parameters & Material Specs

Standard Materials

P20 / H13 / NAK80 / S136 / SKD61

Certified tool steels with mill certificates & spectral analysis

Precision Tolerance

±0.005 mm (0.0002 in)

Critical features ±0.002 mm — insert-to-pocket interchangeability

Surface Finish

Ra 0.02 – Ra 0.4 µm

Sodick mirror EDM polish & VDI 3400 texture options

Hardness Range

HRC 28–32 / HRC 48–62

Pre-hardened P20 to vacuum-hardened H13, S136 & SKD61

Parameter	Technical Details / Standard Values
Insert Types	Cavity inserts, core inserts, sub-inserts, slide cores, angled lifters and wedge inserts
Machining Accuracy	±0.005 mm general (0.0002 in), ±0.002 mm critical features — Waida jig grinding, Sodick EDM, Toshiba 5-axis machining
CAD Formats Accepted	STEP (.stp), IGES (.igs), DWG/DXF, PDF blueprints — plus 3D optical scanning for sample reverse engineering
Locking & Alignment	3–10° tapered wedge locks, heel blocks, dowel pins and registered interlocking profiles
Cooling Options	Conformal (3D-printed) channels, baffled lines, bubbler systems and beryllium-copper alloy inserts
Lead Time & MOQ	MOQ 1 piece — standard 3–7 days, custom 7–10 days, rush 24–72 h; 24h DFM & quotation

Need a non-standard size or special alloy core pin? We specialize in 100% custom machining according to your 2D/3D CAD drawings.

CUSTOM MACHINING CAPABILITIES

Tailored Mold Insert Machining & Special Processing Limits

📏 Dimensional Limits

Micro & Complex Dimensions

Outer Diameter (OD): Min Ø 0.2 mm to Max Ø 50.0 mm
Pin Length: Up to 600 mm (ultra-long mold inserts supported)
Special Shapes: Stepped, tapered, flat D-cut, square head & eccentric pin tip

⚙️ Special Processes

Cooling & Deep Hole EDM

Cooling Channels: Internal water cooling holes & spiral baffle channels
Air Venting: Porous / vented mold inserts structures for gas release
Micro-EDM: Complex cavity contours, thread inserts and micro-grooves

🛡️ Surface Treatments

Advanced PVD Coatings

TiN / TiAlN: High-heat resistance for die casting molds
DLC (Diamond-Like Carbon): Ultra-low friction for dry / cleanroom molding
Nitriding Treatment: HV 900–1100 surface hardness for extended mold life

Support 100% Customization According to Your Drawings

Send us your CAD files for a free DFM (Design for Manufacturability) analysis and instant quotation.

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QUALITY ASSURANCE & INSPECTION

Rigorous Precision Inspection & Quality Control Standards

🔬 Inspection Hardware

High-Precision Testing Equipment

ZEISS CMM for complex 3D contours
Nikon optical projector & tool presetters (0.001 mm resolution)
Vickers hardness testers & surface roughness gauge

🎯 Quality Standards

Zero-Defect Quality Assurance

100% critical dimension inspection before packaging & shipment
Concentricity & runout verification under optical magnifiers
Surface micro-scratch & polish quality double-check

📜 Material Compliance

Full Material & Heat Treatment Traceability

Spectrometer material composition analysis report provided
Original Mill Test Certificate (MTC) & heat treatment logs
RoHS & REACH environmental compliance statements

Download Sample Quality Control & Inspection Reports

Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.

MANUFACTURING PROCESS & LEAD TIME

Precision Machining Workflow & Reliable Delivery Timelines

Turning / Soft CNC

Precision rough turning & blank shaping

Heat Treatment

Vacuum quenching (HRC 48–62)

Rough Grinding

Centerless & OD precision grinding

Finish Grinding / EDM

Jig grinding & micro-EDM features

Surface Coating

PVD (TiN/DLC) or polishing (Ra 0.1)

100% CMM QC

Dimension check & safe packaging

📦 Standard Delivery

3–5 Working Days

For standard dimensions, off-the-shelf standard blanks, and standard SKD61/H13 materials.

🛠️ Custom Manufacturing

7–10 Working Days

For tailored CAD drawings, complex cooling channels, special coatings, or tight ±0.002 mm tolerances.

⚡ Fast-Track Option

24–72 Hours Express

Emergency mold repair green channel available for urgent downtime orders (upon CAD review).

APPLICATION & INDUSTRY SOLUTIONS

High-Performance Custom Mold Inserts for Demanding Mold Applications

🚗 Automotive

Automotive Connector & Housing Molds

Precision cavity and core inserts for high-volume connector tooling (TE, Amphenol tier suppliers) — ±0.002 mm critical features, PPAP-ready documentation.

🔌 Electronics

3C Electronics & High-Density Connectors

Mirror-polished multi-cavity inserts for consumer electronics enclosures and micro-connectors, with high-cavitation replication for identical part-to-part quality.

🩺 Medical

Medical Device Molds

Corrosion-resistant S136 inserts with mirror finish for syringes and micro-fluidic parts — cleanroom-safe surfaces, no polymer adhesion, full traceability.

📦 Packaging & Appliances

Multi-Cavity Packaging & Appliance Molds

High-cycle cap and closure inserts with beryllium-copper hot-spot cooling, plus large VDI-textured inserts for premium appliance housings.

Key Mold Performance Challenges We Resolve:

Heat Fatigue & Thermal Cracking

Vacuum-quenched H13/SKD61 steel prevents thermal erosion in aluminum & zinc die casting.

High Wear & Galling Resistance

Advanced PVD coatings (TiAlN / DLC) extend pin service life by 3x–5x in abrasive glass-filled resins.

Mold Pin Bending & Flash Issues

Strict coaxiality (≤0.003 mm) and rigid alloy cores eliminate flash and core deflection during high-pressure injection.

MANUFACTURING CAPABILITY & DETAIL GALLERY

Precision Craftsmanship & Advanced Factory Hardware

Mirror Finish & Micro Polish

Ra 0.1 µm surface roughness, zero micro-burr or tool marks on pin tip.

Precision Chamfering & R-Angle

Smooth transition radii and precise lead-in chamfers per CAD specs.

PVD Coating & Nitriding Layers

Uniform TiAlN / DLC coating film thickness with high surface adhesion.

Complex Head & Tip Geometries

Precision stepped, D-cut flat, and eccentrically shaped pin profiles.

High-End Machining & Tooling Hardware:

⚡ Wire EDM

Seibu & Sodick Slow-Feed Wire Cut

Corner radius accuracy down to R0.02 mm
Surface roughness Ra 0.2 µm after wire cutting
Suitable for micro-slots, keyways, and complex pin contours

⚙️ Precision Grinding

Mitsui & WASINO Precision Grinders

Centerless & jig grinding for tight OD/length limits
Diameter tolerance controlled within ±0.001–±0.002 mm
Coaxiality & roundness ≤ 0.002 mm guaranteed

🛠️ CNC & EDM

Mikron High-Speed CNC & Sodick EDM

CNC high-speed turning & milling for blank preparation
Micro-cavity EDM for cooling channels and venting slots
Automated tool changers for high-volume consistency

ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS

How to Order Custom Mold Inserts & Frequently Asked Questions

📁 Step 1

Submit CAD & Specs

Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.

⏱️ Step 2

24H DFM & Quotation

Our engineering team conducts DFM analysis and provides a competitive quote within 24 hours.

⚙️ Step 3

Precision Manufacturing

CNC turning, vacuum heat treatment, jig grinding, and surface coating per your specifications.

✈️ Step 4

100% QC & Express Shipping

100% CMM dimensional verification, anti-rust packaging, and global air express delivery.

What is your Minimum Order Quantity (MOQ) for custom mold inserts?

We support 1-piece prototyping! Whether you need a single replacement mold inserts or bulk batch production of 10,000+ pieces, we accommodate all order volumes.

How do you guarantee material authenticity and heat treatment quality?

Every batch comes with original Mill Test Certificates (MTC) and spectral material analysis reports. Vacuum heat treatment logs (HRC hardness testing) are provided upon request.

What packaging and anti-rust protection do you apply for international shipping?

All finished mold inserts undergo ultrasonic cleaning, immersion in heavy-duty anti-rust oil, individual vacuum plastic sealing, and padded shockproof box packaging.

Can you machine non-standard custom shapes or internal cooling channels?

Yes! We specialize in complex mold inserts including stepped profiles, D-cuts, square heads, micro-EDM cavities, and internal/spiral water cooling channels per CAD specs.

Ready to Upgrade Your Mold Component Precision?

Send us your drawing today to receive a free DFM review and detailed quotation within 24 hours.

🔒 100% Confidential | NDA Protected | Instant DFM Assessment

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