DONGGUAN, China – April 16, 2026 – Longterm Manufacturing Solutions Ltd. today announced its new LX0042 series of plastic injection molded parts, engineered to meet the rigorous demands of automotive connector systems, medical devices, and precision electronics. The series supports molding of plastic parts from micro-components to large assemblies (80T–3000T injection machines) with tooling hardness up to HRC 65° and mold life ranging from 50,000 to 500,000 shots depending on steel grade.
As global industries require increasingly tighter tolerances for technical parts, Longterm’s LX0042 platform achieves ±0.001mm dimensional accuracy – verified by CMM inspection at each production stage. The company integrates manufacturing of injection moulded plastic parts with ISO 9001 and CE certifications, ensuring repeatable quality for high-volume thermoplastic injection programs.
Technical Benchmarks: From Mold Steel to Production Shots
The LX0042 mold tooling uses premium steels (P20, 718, H13, NAK80, S136, and 2344) with heat treatment to HRC 54°–65°. Key performance data:
| Mold Steel | Mold Life (shots) | Typical Application for Plastic Injection Molded Parts |
|---|---|---|
| 45# | 50,000–100,000 | Prototype runs, low-volume molding of plastic parts |
| P20 | 100,000–200,000 | Medium-volume technical parts for consumer goods |
| 718 | 200,000–300,000 | High-volume manufacturing of injection moulded plastic parts |
| H13 | 300,000–500,000 | Extreme-duty thermoplastic injection for automotive |
The company’s injection molding machine fleet spans 80 to 3,000 tons, supporting part weights from <1g to several kilograms. Multi-cavity configurations (up to 32 cavities per tool) reduce per-unit cost for high-volume plastic injection molded parts.
Materials Portfolio for Diverse Technical Parts
Longterm processes over 15 thermoplastics, including ABS, PA66+GF, POM, PC, PP, PET, PEEK, TPE, PVC, and HDPE. For molding of plastic parts requiring flame retardancy or glass-fiber reinforcement, the company validates material shrinkage and warpage using Moldex3D simulations. Each batch of technical parts undergoes tensile and impact testing per ASTM/ISO standards.
“Automotive connector molds demand consistent dielectric strength and dimensional stability,” said a company engineer. “Our manufacturing of injection moulded plastic parts integrates gate design (side, sub, direct, hook, or pin-point gates) to eliminate weld lines and sink marks – critical for thermoplastic injection of high-pin-count connectors.”
Surface Treatments & Tolerances for Critical Applications
The LX0042 series offers five surface finishes: polished (SPI-A1 to SPI-C3), etched, textured, heat treatment, and nitriding. For medical plastic injection molded parts, the company achieves Ra <0.1 µm polished surfaces to prevent bacterial adhesion.
Tolerance capabilities:
General dimensions: ±0.02 mm
Critical features (pitch, bore, boss): ±0.001 mm
Flatness and concentricity: ≤0.005 mm over 100 mm length
These tolerances enable molding of plastic parts for fiber-optic connectors, micro-switches, and drug-delivery devices – all classified as high-reliability technical parts. Longterm’s manufacturing of injection moulded plastic parts uses wire-EDM and CNC machining with in-process probing to maintain CpK ≥1.33.
End-to-End Service Process for Thermoplastic Injection Projects
The company follows an 8-step workflow designed to reduce time-to-market for plastic injection molded parts:
Sample & Drawing Submission – Clients provide 3D models (STEP/IGES) or 2D drawings. Longterm evaluates molding of plastic parts feasibility within 48 hours.
Technical Negotiation – Selection of tool steel, cavity count, and thermoplastic injection parameters (melt temperature, injection pressure, cooling time).
Order Confirmation – Fixed lead times: 15–25 days for prototype molds, 30–45 days for production molds.
Collaborative Mold Design – 3D mold design with DFM report, including gate location, venting, and ejection analysis for technical parts.
Tooling Fabrication – Precision machining of cores, cavities, and runners using 5-axis CNC and EDM. Hardness verified per HRC scale.
Mold Process Tracking – Weekly digital reports (photos, videos, inspection data) for manufacturing of injection moulded plastic parts.
Sample Validation – First 50 shots measured for ±0.001mm tolerance. Adjustments made until client approval.
Final Delivery – Mold packaged with spare parts, certification documents, and thermoplastic injection setup guide.
Proven Applications: Automotive, Medical & Electronics
Recent case studies demonstrate LX0042’s performance:
Automotive connector mold: Produced 2.8 million plastic injection molded parts from PBT+GF30 using a 4-cavity H13 tool. Mold life exceeded 480,000 shots before minor maintenance.
Medical device housing: Achieved molding of plastic parts from ABS M/MI with 0.0015 mm flatness for a blood analyzer component. Annual volume: 500,000 units.
Precision powder metallurgy mold: Adapted thermoplastic injection process to produce green compacts for sintered gears – reduced post-machining by 40%.
All technical parts undergo 100% critical-dimension inspection using automated vision systems. Longterm’s manufacturing of injection moulded plastic parts complies with IATF 16949 (automotive) and ISO 13485 (medical) upon request.
Why Longterm for Your Thermoplastic Injection Needs?
Mold life validated: Independent testing confirms 300,000–500,000 shots for H13-based plastic injection molded parts.
Global standards: Tooling built to HASCO, DME, MISUMI, JIS, or LKM specifications – interchangeable with existing production lines.
No minimum order quantity: Prototype molding of plastic parts accepted from 50 shots.
Data-driven quality: Each shipment includes a CMM report, material certificate, and thermoplastic injection process parameter sheet.
Contact for Inquiries & Technical Quotes
Longterm Manufacturing Solutions Ltd. engineers are available to review your 2D/3D drawings and recommend optimal mold steel, cavity count, and manufacturing of injection moulded plastic parts strategy. For technical parts requiring ±0.001mm tolerance or 500,000-shot mold life, request a feasibility analysis.
Tel: +86 156 0239 2025
Email: longterm@longterm-mold.com
Website: www.longterm-mold.com
