Cavity Damage Repair
Welding repair, restoration, and re-polishing of cavity defects such as corner chipping, wear, edge collapse, scratches, and corrosion to restore original precision.
Mold Repair & Modification — Fast, Precise, Reliable
Professional Mold Repair & Modification Services
Full lifecycle mold maintenance, structural modification, and cavity restoration — 24/7 emergency service available
Providing full life-cycle maintenance, structural modification, and cavity repair services for all types of precision injection molds — serving both our own molds and external client molds. We are equipped with professional fitters, polishing technicians, and precision machining equipment to quickly resolve mold wear, venting and waterway defects, and product structure iteration requirements. We also offer long-term storage and refurbishment services for idle molds, reducing client mold maintenance costs.
Cavity Repair
Parts Replacement
Mold Modification
Waterway Repair
Refurbishment
Emergency Service
Mold Repair & Modification Services
Six core sub-services — from cavity repair to full mold refurbishment — fast turnaround with precision restoration.
Standard Parts Replacement
Replacement of standard parts such as ejector pins, springs, guide pins, seals, and waterway fittings, plus regular mold rust prevention, lubrication, and cleaning maintenance.
Waterway & Vent Troubleshooting
Disassembly and inspection of blocked waterways, water leaks, poor cooling, clogged or insufficient venting slots — re-cutting vents and clearing water channels.
Mold Structure Modification
Structural modification of molds for product dimensional adjustments, adding/removing clips and rib features, or appearance changes — 3D model modification followed by precision machining.
Post-modification Trial & Polishing
After modification, the mold is trial-run on the injection machine, full dimensional inspection with CMM, and re-polished to mirror finish to restore appearance precision.
Long-term Mold Storage & Refurbishment
Full disassembly, rust removal, parts replacement, polishing, and waterway refurbishment of idle molds — sealed and preserved for future reuse as needed.
Core Competitive Advantages
Fully equipped in-house workshop, nano-level polishing team, and 24/7 emergency response — keeping your molds running at peak performance.
Fully Equipped In-house Workshop
Complete in-house precision machining, polishing, and inspection equipment — mold modification and repair without outsourcing, ensuring fast response times.
Professional Polishing Team
Professional fitters and nano-polishing team — optical high-gloss mold restoration achieves mirror finish equivalent to brand-new standards.
High-precision Mold Expertise
Expertise in medical, optical, and automotive high-precision mold structures — capable of handling nano-level precision mold repair.
24/7 Emergency Service
Two-shift staff on standby — emergency breakdowns of mass production molds can be quickly attended on-site or in-factory, minimizing downtime losses.
Long-term Maintenance Plans
Long-term mold custody solutions available — regular preventive maintenance and servicing to extend mold service life.
Simulation-backed Modifications
Mold modifications paired with mold flow simulation, trial molding, and inspection — modifications are right the first time, reducing repeated adjustments.
Mold Repair Capability Parameters
JingZhan Mould operates a full range of precision repair equipment with nano-level restoration capability — delivering reliable mold repair solutions across diverse industries.
| Parameter | Capability Range |
|---|---|
| Compatible Mold Types | 50T-500T injection molds, nano optical molds, medical thin-wall molds, automotive high-gloss molds |
| Restoration Precision | Cavity restored to 0.001~0.000001mm, mirror polish with no visible repair marks |
| Equipment Available | CNC Machining Center, Sodick EDM, Jig Grinder, Mirror Polishing Station, CMM Inspection |
| Service Lead Time | Standard modification 3-7 days, emergency repair within 24 hours on-site |
Industries We Serve with Mold Repair & Modification
Our repair and modification services cover all precision mold industries — from optical lenses to automotive components.
Optical Lens Molds
Optical lens mold repair, polishing, and structural modification
Medical Device Molds
Precision repair and parts replacement for medical consumable molds
Automotive Plastic Molds
Cavity repair and structural modification for automotive plastic part molds
Electronics Molds
Structural modification of molds for mobile phone and smart wearable electronics
LED Lens Molds
Nano polishing and mirror surface restoration for LED lens molds
Cosmetic Packaging Molds
Repair, maintenance, and refurbishment of cosmetic packaging molds
Our Service Process
From fault diagnosis to delivery and maintenance plan — a streamlined 6-step mold repair and modification process.
3~7 Days Standard
Modification & Repair Lead Time
Fault Diagnosis & Quotation
Client reports mold defects; mold is disassembled to inspect all failure points; repair plan and quotation are provided.
Repair & Modification
Welding repair, water channel clearing, vent slot cutting, parts replacement, polishing restoration, or cavity/machining adjustment per modification drawings.
Precision Polishing
Post-repair mirror polishing and nano-level optical polishing to restore appearance precision.
Trial & CMM Inspection
Mounted on injection machine for trial run, full dimensional CMM inspection, fine adjustments until specifications are met.
Final Verification
Sample confirmation, CMM re-inspection report, and client acceptance.
Delivery & Maintenance Plan
Full lubrication and rust prevention, handover to client or warehouse storage, with regular inspection and maintenance plan provided.