Plastic Injection Molding Services
Plasticpartsmfg provides on-demand custom plastic injection molding solutions for engineering prototypes, low-volume bridge production, and high-volume contract manufacturing. Operating from Shenzhen, China, our engineering team manufactures tight-tolerance custom plastic components using engineering-grade polymers, custom inserts, multi-material substrates, and precision steel molds built to your exact CAD specifications.
Molding Production Overview
- Molding Volumes
- 50 to 500,000+ parts
- Tooling Options
- Aluminum, P20, NAK80, S136
- Engineered Resins
- ABS, PC, POM, PA66, PEEK, TPU
- Surface Standards
- SPI A/B/C, VDI 3400, Mold-Tech
- File Formats
- STEP, STP, IGES, X_T, DWG, PDF
- T1 Sample Lead Time
- 10 to 18 Business Days
Need strict cosmetic specifications, threaded brass inserts, or overmolded TPE seals? Send technical 2D prints with your 3D CAD files for critical tolerance sign-off.
Engineered Tooling & Production Parameters
We bridge the gap between initial prototyping and scalable mass production. Whether building bridge tooling for market trials or hardened multi-cavity molds for ongoing supply chains, our Shenzhen workshop maintains strict process repeatability.
Rapid Tooling
Cost-effective aluminum 7075 or pre-hardened steel tooling ideal for 50 to 5,000 units. Delivers authentic molded functional parts without full production mold capital expense.
Production Tooling
High-grade hardened steel tooling (NAK80, S136, H13) designed for 100,000 to 1,000,000+ cycles. Built with balanced hot/cold runner systems for high volume stability.
Insert & 2K Molding
Encapsulation of threaded metal inserts, electrical terminals, and bushings, as well as multi-shot molding combining rigid ABS/PC cores with soft TPE/TPU grips and seals.
Micro & Precision Parts
Small-tonnage injection molding for miniature components, thin-wall enclosures, micro gears, and precision optical light pipes requiring micro-gram shot weight control.
Injection Molding Technologies & Capabilities
Browse our specialized injection molding capabilities. From structural metal encapsulation to soft overmolding and micro components, our manufacturing team delivers parts built to your technical documentation.
Custom Plastic Insert Molding Services | Precision Parts Manufacturing
Plasticpartsmfg provides precision plastic insert molding services in Shenzhen. We support prototypes to mass production for threaded inserts, terminals, and fasteners.
View details →
Plastic Overmolding Services | Custom Multi-Material Molding | Plasticpartsmfg
Plasticpartsmfg provides professional plastic overmolding services in Shenzhen. We specialize in bonding rigid substrates with TPE/TPU for functional components. Request a quote.
View details →
Custom Two-Shot Injection Molding Services | Plasticpartsmfg
Plasticpartsmfg provides precision two-shot injection molding services in Shenzhen. We support multi-material/multi-color production for industrial and consumer parts.
View details →
Precision Plastic Micro Injection Molding Services | Plasticpartsmfg
Specialized micro injection molding for miniature plastic components. We provide precision parts with tight tolerances for electronics, medical, and sensors.
View details →Supported Resins & Secondary Operations
Plasticpartsmfg operates injection presses from 30 tons to 850 tons, accommodating both compact precision components and large functional housings. We mold standard commodity resins, engineering thermoplastics, and high-performance specialty polymers.
Commodity & Engineering Plastics
ABS, PP, PE, HDPE, PC, PMMA (Acrylic), POM (Acetal/Delrin), Nylon (PA6, PA66), PBT, and PET.
High-Performance & Elastomers
PEEK, PPS, PSU, PPSU, PTFE, TPU, TPE, and glass-fiber/carbon-fiber reinforced compound blends.
Post-Molding & Assembly
Ultrasonic welding, heat-stake threaded inserts, pad printing, silk screening, CNC secondary machining, painting, laser marking, and boxed sub-assembly.
Quality Control & Verification
Every tooling project begins with a comprehensive Design for Manufacturability (DFM) review. We identify draft angle requirements, uniform wall thickness variations, sink mark risks, and gate placement before cutting steel.
- ✓ DFM & Moldflow Report: Comprehensive gating, cooling, and parting line analysis submitted for customer approval prior to steel machining.
- ✓ T1 Sample Approval: Full First Article Inspection (FAI) report with CMM measurements and physical samples shipped to your facility.
- ✓ In-Process Quality Audits: Continuous dimensional sampling, color consistency check (Pantone/RAL), and surface texture verification during production runs.
- ✓ Traceability & Material Certs: Raw material mill certificates, RoHS/REACH compliance documentation, and export-compliant protective packaging.
Request an Injection Molding Quote
Send Plasticpartsmfg your 3D CAD files (STEP, STP, IGES, X_T) along with 2D drawings (PDF, DWG) indicating critical tolerances, resin grade, color matching, and expected order quantities. Our engineering team will review your design, provide DFM feedback, and deliver a detailed quotation within 24 hours.