Plastic Injection Molding

From engineering plastics to high-volume production, Rayleap delivers precision plastic injection molding with advanced machines up to 2700 tons. Get consistent quality and cost efficiency directly from our plastic injection molding factory.

Our Plastic Injection Molding Capabilities

Equipment and Production Capacity

·Injection molding machines from 80T to 2700T
·More than 33 machines in operation
·Maximum product size up to 1.5 meters
·Maximum shot weight up to 12 kg

Processing Capabilities

·Multi-cavity mold production for cost-efficient, high-volume runs
·Precision molding with tolerances up to ±0.02mm
·Overmolding and insert molding for multi-material and complex parts
·Large parts manufacturing such as furniture and automotive components
·Small precision parts for toys, electronics, and consumer products

Quality and Delivery

·Product qualification rate of 98.5%
·On-time delivery rate of 97%
·Mold lifespan ranging from 300,000 – 1,000,000 shots
·24/7 production to meet tight deadlines

Plastic Injection Molding Materials We Work With

Choosing the right plastic material is critical for product strength, durability, and performance. At Rayleap, we process a wide range of engineering and commodity plastics to meet the needs of different industries.All materials are carefully selected for plastic injection molding applications to ensure durability and quality.For industry codes and safety standards relevant to plastic injection molding, see the Plastics Industry Association – Codes & Standards.

Commodity Plastics

Polypropylene is lightweight, cost-effective, and highly resistant to chemicals. It has excellent fatigue resistance, making it durable for repeated use. PP is widely used in both industrial and consumer products.

Applications: storage boxes, automotive trims, medical disposables.

ABS combines strength, toughness, and a smooth finish that accepts paints and coatings. It performs well in impact resistance while remaining easy to mold. ABS is often chosen for durable consumer and automotive parts.

Applications: toys (e.g., LEGO), electronics housings, automotive parts.

Polyethylene is flexible, durable, and easy to process, making it one of the most common plastics. It offers strong resistance to moisture and chemicals. PE is suitable for packaging, containers, and household goods.

Applications: containers, bottles, household items.

HDPE is a tough, food-safe plastic with excellent resistance to chemicals and impact. It maintains strength even at low temperatures. This material is commonly used for both industrial and consumer-grade products.

Applications:Food containers,Pipes,Milk jugs.

Engineering Plastics

Polycarbonate offers outstanding impact resistance and high transparency. It is lightweight yet strong, making it ideal for safety applications. PC is widely used in automotive, electronics, and optical components.

Applications: safety glasses, lenses, electronic covers.

Nylon is a durable engineering plastic with excellent wear and abrasion resistance. It also performs well under mechanical stress and high temperatures. Nylon is a preferred choice for moving and load-bearing parts.

Applications: gears, bearings, automotive engine components.

Acetal is known for its stiffness, dimensional stability, and low friction properties. It can withstand repeated mechanical stress without deforming. POM is ideal for precision and high-performance industrial parts.

Applications: Precision gears · Conveyor systems · Fuel components

PVC is a versatile plastic that can be made rigid or flexible depending on the formulation. It offers good chemical resistance and long-term durability. PVC is widely used in construction, piping, and consumer products.

Applications:Pipes · Window frames · Medical tubing

Acrylic provides excellent optical clarity and weather resistance, making it a lightweight glass alternative. It is easy to shape and polish for high-quality finishes. PMMA is widely used in lighting, displays, and transparent covers.

Applications:Light covers · Display stands · Optical lenses

Injection Molding Surface Finishes

Glossy plastic products with high-quality surface finishes from injection molding

Glossy (High Polish)

A glossy finish creates a smooth, mirror-like surface with excellent light reflection. It highlights product details and enhances the premium look of plastic parts.
Applications: Transparent covers, cosmetic packaging, medical devices, premium consumer goods.

Matte and satin surface finishes applied to plastic products through injection molding

Matte / Satin

A matte finish reduces glare and gives a soft, non-reflective surface. It provides a professional appearance while hiding minor imperfections.
Applications: Automotive interiors, electronic housings, home appliances, handheld devices.

Textured surface finishes applied to plastic products using injection molding

Textured / Etched

Textured finishes are created by etching or blasting patterns onto the mold surface. They improve grip, add decorative effects, and mask fingerprints or scratches.
Applications: Tool handles, dashboards, toys, consumer electronics casings.

Plastic product with specialty surface finish achieved through sandblasting

Specialty Finishes

Special finishes include sandblasting, EDM spark erosion, and custom patterns. They are designed for unique tactile effects or to achieve specific branding goals.
Applications: Branding logos, functional grips, industrial parts, custom-designed surfaces.

SPI Surface Finish Standards

Surface Finish Type	Description	Common Applications
SPI A-1	Achieved with a diamond buff, A-1 is a high-gloss, mirror-like finish. It provides the smoothest surface among SPI standards, suitable for parts requiring optical clarity.	Lenses, light covers, cosmetic packaging.
SPI B-2	Polished with fine grit sandpaper, B-2 produces a semi-gloss finish. It offers good aesthetics while being cost-effective compared to A-1.	Consumer electronics housings, cosmetic parts.
SPI C-3	Finished with stone, C-3 creates a matte surface that hides defects and reduces glare.	Industrial equipment housings, components where gloss isn’t needed.
EDM Finish	Produced by Electrical Discharge Machining, leaving a textured or rough surface. It improves grip and creates a technical look.	Automotive interior parts, tool handles.
Sandblasting	A matte, uniform texture created by blasting abrasive material. It’s commonly used for functional parts that need a non-slip feel.	Household items, packaging, grips.
Chemical Etching	Uses acid or chemical processes to create detailed textures and patterns. It allows branding or complex surface designs.	Automotive dashboards, appliance panels, branded products.

Why Choose Us

Injection molding workplace with machines and operators producing plastic parts

Expert Engineering Team

Our experienced engineers provide end-to-end support, from mold design to mass production, ensuring every plastic part meets your requirements.

Equipped for Large Projects

With injection molding machines up to 2700 tons, we can handle oversized and complex parts that many factories cannot produce.

Strict Quality Control

Every stage of production follows international standards, combining advanced inspection tools with skilled technicians to guarantee consistent quality.

Cost-Effective Solutions

We focus on optimizing mold design, material selection, and production methods to reduce costs while maintaining durability and performance.

Fast and Reliable Lead Times

From prototype to full-scale production, our streamlined workflow helps you launch products faster without compromising quality.

Trusted by Global Clients

Companies across industries—automotive, consumer goods, and furniture—rely on our injection molding services for long-term partnerships.

Advantages vs Disadvantages of Injection Molding

Advantages

✅High production efficiency – thousands of parts can be produced consistently once the mold is ready.
✅Excellent precision – suitable for complex geometries and tight tolerances.
✅Wide material flexibility – supports many plastic resins, including engineering-grade options.
✅Multiple surface finishes – from glossy to textured directly from the mold.
✅Cost-effective for mass production – lower unit price at high volumes.

Disadvantages

⚠️High initial tooling cost – mold manufacturing requires significant upfront investment.
⚠️Longer lead time for tooling – mold design and fabrication may take weeks before production begins.
⚠️Not cost-effective for low volumes – tooling costs outweigh benefits in small runs.
⚠️Design changes are costly – modifying a finished mold can be expensive.
⚠️Material and size limitations – very large parts or special materials can be difficult.

Injection Molding Product Showcase

From outdoor gear to automotive parts, our injection molding capabilities cover a wide range of industries. Each product shown here reflects our commitment to precision, durability, and quality manufacturing.

Injection molded plastic office chair armrest

Plastic injection molded automotive speaker housing

Injection molded bow-shaped engineering plastic part

Plastic fireworks launch tube made by injection molding

Injection molded outdoor camping tableware set

Frequently Asked Question

Choosing injection molding for your product often comes with questions about materials, cost, and lead time. To help you make informed decisions, we’ve answered some of the most common questions our clients ask about the injection molding process.

Lead time depends on part complexity and order volume. In most cases, we can deliver molded parts within 2–4 weeks after mold completion. For urgent projects, faster turnaround is available.

We work with a wide range of plastics including ABS, PP, PC, Nylon, HDPE, PMMA, and PVC. The right material is selected based on strength, flexibility, durability, and cost requirements.

Yes. We support low-volume runs（MOQ 1k） for prototypes or pilot projects, as well as high-volume mass production with millions of parts.

Injection molding offers tight tolerances and consistent repeatability. With proper mold design and quality control, we can achieve tolerances as low as ±0.05 mm depending on the material and geometry.

We provide a variety of finishes from high-gloss polishing (SPI A1–A3) to matte textures (SPI B1–C3) and custom textures. These allow parts to meet functional and aesthetic needs.

We implement strict quality inspections at each stage, including mold trial runs, dimensional checks, and final part testing. Reports like CMM, PPAP, or material certifications are available upon request.

Latest Articles

Let’s Build Your Next Project Together

Rayleap specializes in plastic injection molding for global clients, delivering top-quality results from prototypes to high-volume production.

Get A Free Quote Contact Us