Precision Custom PET Blow Molding Services
Plasticpartsmfg delivers technical blow molding solutions for product engineers, packaging designers, and procurement teams. We transform CAD concepts into high-clarity, dimensionally accurate containers and industrial housings with full support from custom tooling to final assembly.
Manufacturing Capabilities & Specifications
Our engineers work directly with your native STEP/IGES geometry to optimize parison inflation, gate placement, and wall distribution. We accommodate both standard packaging forms and complex structural geometry.
| Capability Area | Technical Specification & Processing Bounds |
|---|---|
| Primary Processes | Injection Stretch Blow Molding (ISBM 1-step and 2-step), Extrusion Blow Molding (EBM) |
| Supported Polymers | PET, PETG (heavy-wall & high clarity), HDPE, PP, and recycled food-grade rPET blends |
| Machine Tonnage | 50–500 Metric Tons clamp capacity for multi-cavity output and heavy-gauge bodies |
| Dimensional Tolerance | ±0.10 mm on neck threads & critical sealing surfaces; ±0.30 mm on freeform blown body volume |
| Production Volumes | Rapid prototyping runs, bridge production tooling, and high-volume automated runs (1M+ units) |
| Secondary Services | Silk-screen printing, hot stamping, pressure-sensitive labeling, automated leak testing, sonic welding, sub-assembly, custom export carton packaging |
Why Choose PET for Blow Molded Applications?
Polyethylene Terephthalate provides an optimal balance of structural strength, optical presentation, and weight-saving efficiencies. Our fine-tuned thermal control produces stable molecular orientation during the stretch phase.
Weight Reduction
Achieve rigid hoop strength while minimizing raw material consumption compared to heavier solid injection molding.
Optical Glass Clarity
Ideal for high-end consumer goods, beverages, and personal care formulations requiring clear product visibility.
Barrier Performance
Exceptional protection against oxygen, carbon dioxide, and moisture permeability to extend shelf life safely.
Cost-Effective Scaling
Fast, highly repeatable cycle times lower piece-part economics significantly across mid and large production batches.
Project Stages & Production Support
Select a stage below to see how our engineering and tooling capabilities support your technical milestones from design sign-off to full container release.
Prototype & Tooling Validation
We fabricate prototype molds and preforms to verify wall distribution, volumetric capacity, and structural resilience under real-world drop and pressure tests. This de-risks capital expenditure before committing to hardened production steel.
- Single-cavity aluminum or semi-hardened tooling
- CMM dimensional reports on neck finish, thread fit, and shoulder radius
- Functional vacuum and top-load deformation testing
Quality Control & Technical Inspection
Consistency across multi-thousand unit batches requires rigorous inline verification. Every PET production run is tracked by our Shenzhen quality department through four key verification phases.
Tooling Review (DFM)
Comprehensive mold flow, stretch ratio evaluation, draft angle review, and gate positioning to eliminate knit lines and cycle lag.
Dimension Verification
Optical projection and CMM verification on neck outer/inner diameter, thread pitch, perpendicularity, and wall thickness uniformity.
Material Integrity
Hydrostatic burst tests, environmental stress crack resistance (ESCR), clarity haze checks, and thermal shrinkage stability testing.
Final Inspection
AQL 1.5/2.5 batch-specific inspection certificates (COA) containing raw material lot certifications provided with every export shipment.
Partner with Plasticpartsmfg
Located in Shenzhen, China, Plasticpartsmfg serves as your direct manufacturing facility. Our bilingual technical team eliminates communication gaps by delivering clear DFM feedback, realistic production lead times, and proactive project management.
Direct Engineering Contact
Manufacturing Facility
Preferred File Types
STEP, IGES, X_T, DWG, and PDF 2D engineering drawings with tolerance notations.
Request a PET Blow Molding Quote
Submit your project requirements, target volumes, and CAD drawings below.