Mold Repair and Maintenance Services — Fast Turnaround, CMM Verified
Extend the life of your injection molds, stamping dies and die casting dies — crack repair, insert replacement, surface restoration, polishing and preventive maintenance programs with fast turnaround.
- Crack and Damage Repair
- Insert Replacement
- Surface Restoration
- Preventive Maintenance
- Fast Turnaround
- Dimensional Reports
Fast Response within 2 HoursNDA ProtectedSTEP / IGES / X_T / DWG
Trusted Tier-1 & OEM Standards:
SERVICE SCOPE & CAPABILITIES
Mold Repair and Maintenance Services We Provide
Four standard in-house repair categories for injection molds, stamping dies and die casting dies — each with documented turnaround so you can plan production downtime.
WEAR REPAIR
Wear & Erosion Repair
- Build-up welding of eroded parting lines and shut-off surfaces
- Re-grinding guide pillars, bushings and slide gibs to drawing tolerance
- Dimensional restoration of worn cores, inserts and cavity edges
- Clearance re-fit on worn ejector and core pin holes
PIN REPLACEMENT
Ejector & Core Pin Replacement
- Replacement ejector pins and core pins matched to original geometry
- Guide pin and bushing renewal with alignment verification
- Lap fitting of replacement pins to maintain ejection parallelism
- Sleeve and return pin replacement for consistent cycle performance
CAVITY WELDING
Cavity & Core Welding Repair
- TIG and laser welding with tool steel matched to the base grade
- Crack repair on cores, cavities and thin-walled inserts
- Stress relief and re-hardening to restore original hardness (48–52 HRC typical)
- EDM re-cutting and CNC re-machining of welded geometry
POLISHING & REFURBISHMENT
Surface Restoration & Refurbishment
- Mirror polishing to Ra 0.02 µm (SPI A2 or better)
- Texture and grain renewal on visible surfaces
- Coating refurbishment (TiN, CrN, DLC) for wear protection
- Full mold overhaul with preventive maintenance program
INSPECTION & DIAGNOSIS
Root-Cause Diagnosis Before Any Repair
We inspect and diagnose the failure before touching the mold — so the repair addresses the root cause, not just the visible damage.
Inspection & Failure Analysis
Visual & Dimensional Inspection
Full mold inspection with photos, dimensional checks against the original drawing and wear measurement on critical surfaces.
Crack & Defect Detection
Crack location and depth mapping, including cooling-channel proximity checks before any welding is planned.
Hardness & Material Verification
Hardness testing of the damaged zone and base steel to select the correct filler grade and heat treatment.
Repair Feasibility Report
A written diagnosis with the recommended repair method, expected tool life after repair and a fixed quotation.
Our 6-Step Repair Process
Damage Assessment
Inspection, measurement and failure analysis with photo documentation.
Repair Plan & Quotation
Method, filler material, heat treatment and turnaround confirmed before work starts.
Welding & Build-Up
TIG or laser welding with matched tool steel, applied in controlled passes.
Machining & EDM
CNC re-machining and EDM re-cutting of welded areas to final geometry.
Heat Treatment & Finishing
Stress relief, re-hardening, grinding and polishing to the original finish.
CMM Verification & Return
Critical dimensions verified on CMM, repair report issued, mold returned.
Send Photos for a Free Repair Assessment
Email mold photos and a failure description — we reply with a diagnosis and quotation within 24 hours.
Photos / STEP / IGES / DWG accepted
REPAIR PRECISION & EQUIPMENT
Repair Tolerances and In-House Equipment
Repair Precision Standards
| Specification Parameter | Automotive & EV Standard | High-Precision Custom |
|---|---|---|
| Repositioning accuracy after re-machining | ±0.005 mm | ±0.003 mm on request |
| Machined surface finish | Ra 0.4 µm | Ra 0.02 µm mirror polish |
| Restored cavity hardness | 48–52 HRC | Up to 58 HRC (H13) |
| Flatness / parallelism | 0.005 mm / 300 mm | 0.003 mm / 300 mm |
| Pin replacement concentricity | 0.008 mm | 0.005 mm |
In-House Repair Equipment
Sodick Sinker & Wire EDM
Re-cutting welded cavities, removing broken taps and machining complex repair geometry.
CNC Machining Centers
Re-machining of repaired cores, inserts and parting line surfaces to drawing tolerance.
Mitsui & Wasino Precision Grinders
Surface and jig grinding for parting lines, guide bores and pin holes at micron level.
ZEISS CMM & Hardness Testers
Before/after dimensional verification and hardness confirmation of repaired zones.
Repair Turnaround Times
Emergency Repair
Pin replacement and re-polish — 3–5 days for production-critical molds.
Standard Repair
Crack welding and re-machining — 5–10 days including heat treatment.
Full Overhaul
Complete refurbishment with coating renewal — 2–3 weeks with progress reports.
PM Contract
Scheduled maintenance by shot count with condition reports — no downtime surprises.
REPAIR MATERIALS & COATINGS
Tool Steel, Welding Fillers and Coatings We Use
Every repair is documented with the materials used — filler grade, heat treatment and coating — so your mold history stays traceable for audits and PPAP submissions.
Build-Up & Repair Welding Materials
Filler Grades (matched to base steel)
Heat Treatment After Welding
Surface Treatment & Coating Refurbishment
Wear-Protection Coatings
Surface Finishes
Documentation With Every Repair
Reports Included
Quality Standards
Not Sure Which Filler or Coating Your Mold Needs?
Send us the mold steel grade — our engineers will recommend the matching filler, heat treatment and coating.
🔒 Material authenticity verified | MTC available on request
QUALITY ASSURANCE & INSPECTION
Rigorous Precision Inspection & Quality Control Standards
🔬 Inspection HardwareHigh-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 StandardsZero-Defect Quality Assurance
- 100% critical dimension inspection before packaging & shipment
- Concentricity & runout verification under optical magnifiers
- Surface micro-scratch & polish quality double-check
📜 Material ComplianceFull 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.
ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS
How to Order Mold Repair & Maintenance Services
📁 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.
Can you repair cracked mold cavities?
Yes. Cracks are evaluated, welded with matching tool steel, re-machined and heat-treated to restore properties, then verified by CMM.
How fast is emergency repair?
Urgent repairs are prioritized; many common repairs (pin replacement, re-polish) turn around in 3–5 days.
Do you offer preventive maintenance?
Yes — scheduled inspection and maintenance programs for production mold fleets, with condition reports and recommendations.
Can you restore the original surface finish?
Yes. Mirror polish to Ra 0.02, texture renewal and coating refurbishment are all part of our restoration service.
Do you repair dies from other manufacturers?
Yes — we repair and rebuild molds and dies regardless of original manufacturer.
Do you provide a written report after each repair?
Yes — every job returns with a structured report: diagnosis photos, filler and heat treatment used, CMM verification of critical dimensions and a prevention recommendation, keeping your mold history traceable for audits and PPAP.
Can you work around our production schedule?
Yes. Emergency repairs are prioritized for production-critical molds, and PM contracts can be scheduled during planned downtime so maintenance never stops your line.
Keep Production Running — Send Your Mold Today
Send photos and a failure description for a free diagnosis and fixed quotation within 24 hours.
🔒 NDA Protected | CMM Verified Repairs | Fast Turnaround
RELATED MOLD COMPONENTS
