Customized Plastic Injection Molding Automotive Parts, Car Bumper Reaction Injection Moulding ODM

Reaction Injection Molded Big Car Parts Low Volume Production Cheap Mold Fast Delivery Good Quality

Reaction Injection Molding (RIM, also named Low-Pressure Injection Molding) is an ideal process to low volume manufacturing the large plastic parts quickly and economically. Firstly, the liquid bi-component polyurethanes are injected into a mixer at certain amount ratio and meanwhile mixed well by the mixer, then the mixture is injected into the tooling cavity quickly at room temperature and low pressure to form the parts.

Advantages of RIM Parts:

Thick and Various wall thickness for one part

Excellent mechanical properties

High flexibility, strength and durability

Good chemical resistance

Great impact resistance

Excellent dimensional stability

RIM Parts Design Considerations:
When designing parts for RIM production, it's important to consider factors such as size, structure, wall thickness, draft angles, and gating. RIM parts can be designed with complex geometries and intricate details, but it's important to ensure that the part design is manufacturable and the tooling favors the design.

The high pressures used cause the plastic to conform to the mold’s shape, thereby generating the part. Like metal die casting, custom plastic injection molding typically produces components that require little or no additional work. Reaction Injection Molding (RIM) is a specialized subset of the injection molding technique that chemically bonds two or more plastics into a polymer before they are introduced into the mold.

One advantage of RIM is its ability to produce large parts with a smooth and high-quality surface finishing, as well as the complex geometries and intricate details. Another advantage of RIM is its ability to produce parts with high strength and durability, which makes RIM parts ideal for applications that durability is a critical factor, such as industries of automotive, medical devices, aerospace, etc.

A CNC milled and painted master model was used to make RIM tooling, this was similar to silicone rubber mold and vacuum casting process. The finished RIM tooling. Injection molding by room temperature and fairly low pressure delivered the low mold locking pressure by simple clamps.

Industry Applications:
RIM is commonly used in the low volume manufacturing or prototyping of automotive, aerospace, medical devices, and consumer goods parts. Such as automotive bumpers & grills, body panels, interior components, aerospace ducting, large enclosures, big housings and medical covering shells.

The maximum weight by one shot of injection molding was 18 kilograms, so our RIM process was available for molding the vast majority of parts. Being different to injection molding by steel mold, our RIM had simple demolding system, and worked fine for insert molding and overmolding.

We are the RIM expert in China to provide customers quality RIM material, cheap and rapid tooling, fast delivery, especially for automobile field. The trimmed, deburred, sandblasted and sanded parts. Customer was satisfied with the bumper's flexibility after impact resistance testing.

We are a professional supplier. We know what we are doing. We keep a very stable quality level for years. Thanks to our professional production and technical team, our qualified products rate is 99.75% and we are constantly improving it, we hope our clients can get what they paid for.

How does HONKIA compare to other suppliers on price?

Compared to other Chinese suppliers, we choose not to compete on price but to offer the high level of quality, rapid response, and professional results. That’s why some customers cooperate with us for many years, compared with the price, they need a reliable partner to avoid serious losses caused by annoying after-sales service or even the trouble of finding no one.

What if I am not completely satisfied with the parts I receive?

HONKIA will free remake or amend the returned parts that you are not completely satisfied, or refund the full arrived payment, though this is rarely happened in the past. Any disputes based on a subjective or unilateral determination shall be discussed and negotiated to reach a reasonable result. Our continuing business relies on earning your confidence in our ability to meet and exceed the reasonable expectations.

We specialize in Rapid Prototyping and Low Volume Production to bring cost & time saving for product development and production in China. Our rapid manufacturing techniques include: CNC Machining, SLA/SLS 3D Printing, Plastic Injection Molding, Vacuum Casting, Sheet Metal Fabrication, Reaction Injection Molding.

At Honkia, we not only make prototypes and parts, also help customers in right direction to save money and time. Our sales engineers have qualified engineering knowledge, adequate practical experience and excellent English capability to work with worldwide customers smoothly. We look forward to doing more and better.