Precision injection molds and tight-tolerance plastic components demand an uncompromising quality control framework. Nodinson combines certified tool steels, 3D electrode inspection, in-process Makino CNC & Sodick wire-cut verification, optical metrology, 3D CMM First Article Inspection (FAI Report), CPK capability studies, and rigorous mold validation.
Views of components and operator work at a coordinate measuring machine.
Every mold core, cavity insert, and production resin begins with rigorous material traceability and composition verification before any machining begins.
All copper and graphite EDM electrodes undergo precise coordinate inspection before spark erosion to guarantee sub-micron spark gap control and zero cavity over-burning.
Individual mold components, core inserts, cavity blocks, slider gibs, and angle lifters undergo rigorous dimensional audits at each machining station.
Full bench fitting and mold assembly verification under press clamping forces to inspect slide travel, lifter clearance, and parting line shut-offs.
First mold trials (T1) on Haitian precision injection presses to qualify the scientific molding process window and establish stable production parameters.
Comprehensive metrology measurement correlating every drawing dimension directly with CMM measured values, accompanied by CPK process capability studies.
Instruments used for dimensional and metallurgical verification of tooling and molded parts.
| Equipment Type | Manufacturer / Origin | Measurement Range | Accuracy / Tolerance | Inspection Application |
|---|---|---|---|---|
| 3D Coordinate Measuring Machine (CMM) | Croma (China) | 500 × 400 × 500 mm | Stated in each CMM report | Critical 3D geometric dimensions, hole positions, datum alignment |
| 2.5D Optical Video Measuring Microscope | Rational Precision | 400 × 300 × 200 mm | ±0.002 mm (2.0 µm) | Complex part profiles, radii, gate vestige, insert chamfers |
| Digital Height Gauges | Mitutoyo (Japan) | 0 to 600 mm | ±0.003 mm | Step heights, electrode datum planes, core plate parallelisms |
| Digital Rockwell Hardness Tester | Wilson / Buehler | 20 to 70 HRC | ±0.5 HRC | Raw steel validation, heat-treated cores, slides, and wear plates |
| Surface Roughness Tester (Profilometer) | Mitutoyo (Japan) | 0.01 to 40 µm Ra | ±5% reading | SPI optical polish grades, EDM spark erosion, VDI texture verification |
| Class X Precision Gauge Pin Sets | Meyer / Deltronic | 0.20 to 25.00 mm (0.01 step) | ±0.001 mm | Ejector pin bore clearances, guide pin bushings, hole diameters |
| Water Circuit Leak & Pressure Tester | Automated Hydraulic | 0 to 1.5 MPa (15 bar) | ±0.05 bar digital readout | 30-minute high-pressure water circuit leak testing and flow testing |
Every export mold is delivered with verified Mill Test Certificates (MTC), vacuum heat treatment hardness logs, and our pre-shipment mold checklist. Review authentic customer inspection records below.
Official Uddeholm / ASSAB Tooling authentication verifying genuine S136 ESR stainless tool steel procurement.
Official chemical composition assay and hardness transcript certified by Swiss Steel Group.
Controlled vacuum quenching and double-tempering inspection verifying core and cavity hardness at 49 to 50 HRC.
Pre-shipment toolroom sign-off covering water pressure tests, parting fit, mechanism travel, and full documentation.
We provide full documentation transparency. Review reports, material certificates, and test records generated across the tooling and molding life cycle.
Tooling geometry and inspection standards are locked to an agreed 2D/3D drawing revision before steel cutting, with formal change orders for modifications.
Sample quantities, dimensional report scope, and corrective action responsibilities for T1 first articles are established in the written project contract.
All customer 2D prints, 3D CAD files, and proprietary product specifications are protected by a signed Non-Disclosure Agreement (NDA).
Tool life expectations, maintenance guidelines, and wear-part replacement schedules follow SPI Class 101/102/103 standards agreed for your production volume.
Every 2D drawing dimension is numbered and correlated directly with the CMM nominal, tolerance and actual measured deviation, based on Croma CMM inspection of critical functional features, datum planes and hole centerlines.
A statistical process capability analysis (CPK ≥ 1.33) is conducted across 30 to 50 sample shots on critical functional tolerances.
Mill test certificates are checked for P20, 718H, H13, S136, 1.2344 and NAK80, raw steel blocks receive ultrasonic flaw detection, and hardness is verified with digital Rockwell testers before machining.
Every cooling circuit is pressure-tested at 0.8 to 1.0 MPa (8 to 10 bar) for a minimum of 30 minutes to verify zero internal seal leakage.
T1 trials run on Haitian precision injection presses and are documented with a process parameter sheet (barrel temperature zones, injection speeds, transfer pressure, holding pressure and cooling time) and a trial video of mold opening, demolding and part ejection.
Specify ballooned drawing requirements, CPK study parameters, or FAT trial scopes in your inquiry for confirmed pricing.