Automotive Blow Mold & Plastic Parts Manufacturing Supplier
Booling provides in-house blow molding & injection molding for automotive OEMs and Tier-1 suppliers. We produce air ducts, spoilers, bumper parts.
- ISO 9001:2015 Certified
- Quote Within 1 Working Day — Lead Time 30–55 Days
- DFM + Moldflow Included — CMM Report with Every Mold
- Lead Time 35–50 Days
- Taizhou City (Mold Town)
- 10+ Years Manufacturing
- 12-Month Warranty
- 6100 m² Workshop
- 24h Response
In-House Blow Molding & Injection Molding Capability
Booling is a tooling and manufacturing supplier for OEM and Tier-1 automotive programs, specializing in blow molding and injection molding for production-grade plastic components.
We produce functional automotive plastic parts that are used in real vehicle platforms, including air ducts, rear spoilers, bumper-related components, and other industrial-grade assemblies.
We operate our own workshop equipped with 8 CNC machining centers and 4 EDM (spark erosion) machines. This allows us to respond quickly when design changes or engineering updates are required during the project stage.
Our engineering team is directly involved from mold design to process tuning. When issues occur during development, we focus on practical modification solutions to keep downstream production stable and avoid unnecessary downtime.
Materials We Work With
| Material | Typical Automotive Use | Notable Property |
|---|---|---|
| HDPE | Coolant expansion tanks, washer bottles, SCR/AdBlue tanks | ESCR > 1,000 hrs (IGEPAL), continuous 105°C rated |
| PP | HVAC ducts, air intake manifolds, battery cases | Good impact at -30°C, 20% GF grades available |
| PP+GF (20/30%) | Fan shrouds, structural brackets, under-hood covers | HDT > 145°C at 1.82 MPa |
| PA6 / PA66 | Engine covers, intake manifolds, oil separator housings | Continuous 150°C+, oil-resistant |
| ABS / PC-ABS | Interior trim, instrument panel components, vent grilles | UV-stabilized grades for visible parts |
| HDPE + EVOH (multi-layer) | Fuel filler necks, fuel system components | Permeation < 1.5 g/m²/day (CE10 at 40°C) |
| TPE / TPV | CVJ boots, bellows, seals, grommets | Flex fatigue > 1M cycles, -40 to 125°C range |
Core Manufacturing Capabilities
Blow Molding Focus
Our core expertise is extrusion blow molding. The workshop is equipped with multiple blow molding machines across different tonnages, all integrated with wall thickness control systems.
Without parison programming, wall thickness distribution relies heavily on experience, which leads to material waste and inconsistent part quality. With programmed control, we can stabilize wall thickness and improve dimensional repeatability for automotive-grade requirements.
Injection Molding & Assembly
We also provide injection molding capabilities for automotive components. In addition to single parts, we can assemble complete subcomponents in-house, reducing the need for secondary suppliers and shortening overall lead time and logistics complexity.
Case Experience: Automotive Air Duct System
We recently supported a large commercial vehicle air duct project. Air ducts typically involve complex geometries and strict dimensional control requirements.
This project required integration with multiple downstream processes, including 7 punching and cutting stations, 2 precision trimming structures, and multiple sensor mounting interfaces. To ensure dimensional consistency in mass production, we developed dedicated tooling features to control hole positions and cut accuracy within drawing tolerances.
We recently supported a large commercial vehicle air duct project. Air ducts typically involve complex geometries and strict dimensional control requirements.
This project required integration with multiple downstream processes, including 7 punching and cutting stations, 2 precision trimming structures, and multiple sensor mounting interfaces. To ensure dimensional consistency in mass production, we developed dedicated tooling features to control hole positions and cut accuracy within drawing tolerances.
In-Process Controls
| Control Point | Method | Frequency |
|---|---|---|
| Resin incoming inspection | density check, lot cert review | Per lot |
| First-off dimensional | CMM + fixture gauge | Every shift start + die change |
| Wall thickness (critical zones) | Ultrasonic gauge, mag-mike | Every 2 hours |
| Weld integrity | Burst test (destructive, 1 pc per cavity) | Every 4 hours |
| Leak test | Dry-air pressure decay | 100% of fluid-carrying parts |
| Visual + flash control | Operator inspection under white light | 100% |
| Final audit (dock audit) | ANSI/ASQ Z1.4, AQL 0.65 | Per shipment lot |
Need Automotive Plastic Parts? We Mold Them Your Way.
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