Custom Plastic Parts Manufacturing
From DFM and tooling to injection molding, finishing, assembly, and delivery.
JBRplas manufactures custom plastic parts for OEM programs — from 500-piece bridge runs to multi-million annual volumes. Every project starts with a DFM review of your 3D files, then runs through tooling, molding, finishing, and assembly in one Shenzhen facility.
What We Manufacture
Six product families we tool and mold every week — each linked to a production project with the mold specs published.
Housings
Product housings with ribs, bosses, snap-fits, and multi-slide features, molded to drawing tolerance.
Enclosures
Electronics and equipment enclosures in flame-retardant or UV-stable grades, with cutouts, venting, and sealing features.
Brackets
Mounting and structural brackets in glass-filled PA, PBT, or PPS — metal-replacement designs evaluated for stiffness and creep.
Covers
Decorative and protective covers with high-gloss, textured, or painted finishes — including transparent and insert-molded options.
Connectors
Connector bodies and sockets with insert-molded contacts, tight pin-position tolerance, and dielectric-grade materials.
Structural Components
Internal frames, chassis, and support structures — ribbed and gusseted for stiffness without sink marks.
From CAD to Production
Ten stages from your 3D files to delivery — the linked stages have detailed process pages.
- 01 3D CAD STEP / IGES review
- 02 DFM Manufacturability report
- 03 Mold Design 3D mold + runner layout
- 04 Tool Manufacturing CNC, EDM, spotting
- 05 T1 Sampling First shots + FAI report
- 06 Injection Molding 27 presses, 90–650T
- 07 Finishing Paint, print, laser
- 08 Assembly Welding, inserts, hardware
- 09 Inspection Dimensional + cosmetic
- 10 Delivery Packed to spec, shipped
Why OEMs Use JBRplas
Specific capabilities, in numbers and documents — not adjectives.
One Supplier From Tooling to Production
Mold design, toolmaking, molding, finishing, and assembly in one Shenzhen facility — no handoffs between vendors.
Engineering-Led DFM
Every RFQ is reviewed by mold designers before quoting — draft angles, wall thickness, and gate locations flagged in writing.
Multi-Cavity Production Tooling
From 2 to 16 cavities with balanced hot runner systems, qualified to your cycle-time and CpK targets.
90–650T Injection Capacity
27 molding machines running engineering resins from commodity ABS to PEI and PEEK, with documented setups.
500+ Engineering Resins
PC, PA66-GF30, PBT, POM, PEEK, TPE, and flame-retardant grades — processed and documented, not just catalogued.
In-House Tooling & Molding
Steel cut, spotted, and sampled under one roof — tooling and production data stay with one team.
Quality Documentation
PPAP-style packages — FAI, dimensional reports, material certificates, and process capability data with every program.
Plastic Parts by Application
Where parts we mold end up — from consumer devices to production equipment.
Production Volume
Tooling strategy follows volume. Find your band, then check what it means for cavities, steel, and part cost.
Rapid tooling in aluminum or pre-hardened steel for design validation and bridge production.
Explore 10K–100K Low VolumeHardened production tools sized for pilot runs, market entry, and specialty products.
Explore 100K–1M ProductionMulti-cavity hot runner tools with automation and documented process capability.
Explore 1M+ High VolumeHigh-cavitation tooling, 24/7 molding, and dedicated quality staffing for annual programs.
ExploreWhich tooling strategy fits your volume?
Featured Projects
Recent programs with published specs — material, cavities, steel, and shot life.
Smart Meeting Recorder Housing
Wireless Microphone Charging Dock
Automotive OBD Family Mold
Cabin Wireless Access Point Enclosure
POS Terminal Housing (Two-Shot)
Materials
The resins we process most — plus flame-retardant, glass-filled, and high-temperature grades from 500+ qualified materials.
Secondary Processes
Post-molding operations completed in-house — parts ship assembled and packed, not loose.
Painting
Spray painting matched to RAL / Pantone
Pad Printing
Up to 4 colours, curved and flat surfaces
Silk Screening
Durable single and multi-colour prints
Laser Engraving
Serial numbers, logos, QR codes
Ultrasonic Welding
20–40mm horns, leak-tight joints
Assembly
Insert installation, heat staking, hardware
Packaging
Blister, clamshell, retail box, anti-static