Custom Hollow Plastic Parts Manufacturing Services
Plasticpartsmfg delivers comprehensive manufacturing solutions for custom hollow plastic components. Based in Shenzhen, China, we support product development teams, industrial equipment manufacturers, and hardware startups with end-to-end production—from rapid mold development to finished, fully assembled components.
Manufacturing Capabilities
We utilize specialized blow molding processes tailored to your specific geometry, resin specifications, and run requirements. Our facility handles parts ranging from high-precision technical reservoirs to large industrial ducts.
| Capability | Specification Range |
|---|---|
| Primary Processes | Extrusion Blow Molding, Injection Blow Molding, Stretch Blow Molding |
| Typical Materials | HDPE, LDPE, PP, PET, PVC, and engineered resins |
| Volume Capacity | 10 mL to 200 L |
| Wall Thickness | 0.5 mm – 8 mm |
| Tooling Options | Prototype tooling to high-volume multi-cavity production molds |
| Secondary Operations | Trimming, drilling, silk printing, assembly, custom packaging |
Blow Molding Process Selection
Selecting the correct process is critical to balancing tooling investment, cycle time, and component performance. Our engineering team reviews CAD models to identify the optimal forming method.
Extrusion Blow Molding
Ideal for large-scale production of containers, fluid reservoirs, and industrial housings. Highly cost-effective for complex profiles, internal channels, and parts with varying wall thicknesses.
Injection Blow Molding
Best suited for high-precision, small-to-medium-sized hollow parts requiring tight tolerances on neck finishes, thread geometry, and seamless surface finishes with zero scrap flash.
Stretch Blow Molding
Used primarily for PET components where high optical clarity, superior impact strength, and stringent barrier properties are mandatory, such as pressure vessels or transparent enclosures.
Resin Selection Guide
The choice of polymer determines chemical compatibility, structural load capacity, drop impact durability, and thermal tolerance. We source certified engineering and commodity grades for specialized applications.
HDPE / LDPE
Excellent for chemical storage, fuel containment, and rugged industrial housings requiring superior stress-crack and drop-impact resistance.
PP (Polypropylene)
High heat deflection, low density, and outstanding flexural fatigue resistance for live hinges, ducting, and hot fluid components.
PET
High clarity and gas barrier performance for pressure-resistant vessels, laboratory reservoirs, and visual inspection containers.
PVC
Flame retardancy, structural rigidity, and chemical resistance for specific fluid transfer fittings and protective industrial housings.
From Prototype to Production
We support the entire manufacturing life cycle, bridging the gap between initial mechanical concept and full-scale factory output.
Design for Manufacturing (DFM)
Thorough engineering review of your 3D CAD files (STEP/IGES) to detect draft issues, parting line placement, blow-up ratios, and pinch-off integrity prior to cutting steel.
Tooling Development
Machining prototype aluminum tooling for rapid design verification and low runs, or hardened steel production tooling for long-term dimensional repeatability and high output.
Secondary Finishing
Complete secondary operations including automated deflashing, CNC drilling for mounting bosses, pad/silk printing, ultrasonic welding, and final hardware assembly.
Typical Applications
Our custom hollow components are engineered to perform in rigorous environments across critical industries.
Industrial Equipment
Coolant and fluid reservoirs, heavy protective housings, structural air intake ducts, and manifold housings.
Automotive
Expansion tanks, engine air ducts, windshield washer tanks, and ergonomic cabin ducting assemblies.
Consumer Hardware
Specialized dispensing bottles, custom technical containers, durable cases, and molded ergonomic handles.
Medical & Lab
Waste collection vessels, diagnostic equipment bodies, clean-room containers, and calibrated fluid chambers.
Request a Quotation
Provide your CAD files (STEP, STP, IGES, or X_T) along with target material, estimated volume, and required secondary operations. Our engineering team returns a full DFM analysis and production quote.
Engineering Support:
Production Facility: