Injection Molding Service
Cost-effective injection molding services for your custom products and parts.
- Rapidly-made Prototypes in a Few Days
- High-Precision Capabilities
- Flexible for Low-volume manufacturing

Injection Molding Service by LEADRP
LEADRP has rich manufacturing experience in injection molding and can offer injection mold design, engineering, and building for our OEM customers. LEADRP offers the following injection molding services:
- Die Casting Tooling
- Precision Injection Mold Machining
- Plastic Injection Mold Manufacturing
- Plastic Injection Molding Part Service
- Plastics Insert molding
- Plastic Overmolding
- Silicone Rubber injection molding
Injection Molding Capability
LEADRP applies a variety of possible injection molding technologies and equipment to improve speed and the ability to cope with mass production applications.
Max. part dimensions | 200mm x 400 mm |
Tolerance | Mold Cavity Tolerance: +/-0.01 mm Molded Parts Tolerance: +/-0.05 mm per centimeter when considering shrinkage Part Size Consistency: +/-0.1 mm |
Injection molding machine | Quantity: 30+ Clamping force: 60T – 500T Type: single color injection molding machine, 2K molding machine, 3k molding machine |
Mold Type | Choose different molds according to your project. |
Surface Finish | Surface finishing options are according to your needs. |
Tooling and Machining Capabilities
- Rapid Tooling Design
- Precision CNC Machining
- CNC Swiss Machining
- 3, 4, 5 Axis CNC Machining
- Laser Cutting/Welding Machine
- Aluminum Alloy Mould Making
- Silicone Mould Making
- Molding Parts Surface Finish and Assembly
Injection Molding Materials
- POM(Delrin/Acetal)
- Nylon
- ABS
- Acrylic
- PC
- PE
- PS
- TPE
- TPU
- PTFE (Teflon)
- Polycarbonate
- Polyethylene
- PVC
- PMMA (Acrylic)
- PET
- Polypropylene
Tooling Steel(P20)
Carbon Steel(S50C)
Aluminum alloy
Copper alloy
Zinc Alloy
Surface Finish Options for Injection Molded Parts
Surface finish is applied to parts after they have been machined to create a unique surface layer to meet the hardness, chemical resistance, and appearance requirements of the products. It depends on material properties and the application of the part. LEADRP offers the following finishing options for injection molded parts services:
Full Gloss is an Grade-A finish made by polishing, and it creates glossy surfaces on injection molded parts.
SPI Standard: A1, A2, A3
Semi-Gloss is a grade-B finish options made by grit sandpaper, and it creates a slightly rougher finish than grade-A parts.
SPI Standard: B1, B1, B3
Matte is a Grade-C finish options made bygrit sanding stones, and it creates a non-glossy surface texture.
SPI Standard: C1, C2, C3
D grade texture finishes is a much rougher finishes are made by abrasive blasting with sand or glass beads.
SPI Standard: D1, D1, D3

Why LEADRP
At LEADRP, we use a variety of rapid prototyping techniques to produce engineering parts, prototypes, and complete working products. Since starting our business in 2006, we have put a lot of effort into our facilities and people to offer more competitive services than many other companies in rapid prototyping and manufacturing.
Quick Response
With experienced engineering and operations team to help you with instant quotations, production, and delivery.
Rich Industry Experience
We help to dealing with varying requirements of material and tolerance in the most challenging industries since 2006 .
Quality Guarantee
As an ISO certified company, we always ensure our products and services comply with international standards.
How We Works
Instant Quote
Send us 2D & 3D design files, then get free DFM feedback and quotes in a few hours.
Production
Once the quote and order are confirmed, production starts in a few hours.
Delivery & Receive
After passing quality inspections, the parts are carefully packed and ready for shipment.
Served Industries
LEADRP is a leading provider of rapid prototyping service and low-volume manufacturing service for mission-critical applications in the Aerospace, Automotive, Medical & Life Science, Oil & Gas, Food and Beverage industries, Semiconductor and more.
Aerospace
Bracket, turbines, handles, and more.
Automotive
Grills, handles, decos, and more.
Architecture
Sculptures, mockups, and more.
Medical
Dental, implants, surgical models, and more.
Consumer Products
Household, electronics housings, and more.
Chemical
Polyurethanes, die castings, chemical resistance parts, and more.
Oil and Gas
Fluoropolymer, silicone rubbers, and more.
Food and Beverage
Food-grade plastics and engineering polymers, and more.
Frequently Asked Questions
We accept 3D CAD files in STL, STP, STEP, OBJ IGS, or IGES format and 2D drawings(jpg, png, gif, BMP, pdf) with dimensional details and specific manufacturing requirements.
We respond within 2 hours after your request. Princing quote will be send within 8 hours.
Yes, master models are used to create silicone molds for vacuum casting and can be made from any rigid solid that can withstand heat up to 100 °C. Models used for CNC machining will be 3D scanned to create a CAD/CAM program for production.
Quality parts less than 1000pcs can be made in as fast as one week if you provide complete 2D and 3D CAD models. More complex parts requiring other special features will take longer. As for shipping, most of our shipments are via air freight, which can take 5-7 days from China to Europe or North America.
We respect your intellectual property. None of your information, images, files or likenesses will be shared with any third party, and it will not be used for any advertising, marketing, or promotional use without your explicit written authorization. If you would like to sign NDA agreement, please contact our team for support.
We follow the ISO/IATF standard and guarantee that we will rework the products or refund them if there are any quality problems. The full-dimensional report, material certification, or first article inspection are provided on request before order placement.
