Plastic Injection Molding Service For Custom Parts
Professional DFM Analysis
Production Parts in as Fast as 10–15 Days
Dozens of Materials and Finishes Available
Cleanroom Production for Medical & Electronic Components
Plastic Injection Molding Service Online Quote
Plastic injection molding is a manufacturing process used to produce large volumes of plastic parts. The injection molding process involves injecting molten plastic material into a mold cavity, where it cools and solidifies into the desired shape. Then eject the molded plastic part. This method is widely used because it can create complex shapes with high precision and consistency, making it ideal for mass production. The injection molding services, in addition to the rapid completion of bulk plastic parts, also have a lower cost of characteristics.
At HordRT, plastic injection molding is one of our core services. With over 11 years of experience, we provide on-demand manufacturing from prototype to production. As an injection molding manufacturer, we handle projects of any size or complexity, delivering high-quality parts, competitive pricing, and quick lead times. Best of all, we have no minimum order requirements.
Our Custom Injection Molding Services
Explore our flexible molding capabilities for low-volume production, multi-material components, insert-integrated parts and complex performance-critical products.
01
FLEXIBLE PRODUCTION
Low-Volume Injection Molding
Production-grade molded parts with flexible order quantities, shorter tooling lead times and support from prototype through bridge production.
02
INTEGRATED COMPONENTS
Insert Molding
Mold plastic directly around metal inserts, threaded components and other pre-formed parts to improve strength and reduce secondary assembly.
03
MULTI-MATERIAL PARTS
Over-Molding
Combine rigid substrates with soft-touch or functional materials to improve grip, sealing, impact resistance and product appearance.
04
SILICONE & THERMOSETS
Compression Molding
Produce durable silicone, rubber and thermoset components using controlled heat and pressure for stable performance and repeatable quality.
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LIGHTWEIGHT STRUCTURES
Gas-Assisted Injection Molding
Create hollow internal sections to reduce part weight, minimize sink marks and improve the appearance of thick or complex molded components.
Send us your CAD files and project requirements. Our engineers will recommend the most suitable process, material and tooling solution.
How Custom Plastic Injection Molding Works
Key Steps in Plastic Injection Molding:
- Setting up the mold to the injection molding machine.
- Feeding and melting the thermoplastic.
- Injecting the molten plastic into the mold
- Holding and Cooling.
- Ejecting and Finishing processes.
The injection molding process can be repeated hundreds or thousands of times rapidly, which helps amortize the cost of tooling and reduces the cost of each unit to just a few dollars or less. At HordRT, our tools may feature a single cavity or hundreds of cavities, allowing for the production of countless parts. The manufacturing cycle varies based on the material, size, and complexity of the part.
ISO Class 8 Cleanroom Injection Molding
Our 720 m² cleanroom provides a controlled manufacturing environment for injection molded parts requiring enhanced cleanliness, process consistency and contamination control.
Dedicated cleanroom manufacturing area
Class 100,000 controlled environment
Supporting medical manufacturing projects
Clean manufacturing from material handling to final inspection.
Controlled production conditions designed to reduce airborne contamination.
Documented production, inspection and quality-control procedures.
Material, production and inspection information maintained throughout the project.
Suitable for medical, diagnostic and other cleanliness-sensitive plastic components.
Discuss your requirements with our engineering team.
Send us your CAD files, material requirements and expected production volume for a detailed project review.
Request a Project Review →Plastic Injection Molding Materials
Our robust supply chain ensures that we source the highest-quality materials for your project. We work directly with manufacturers and their authorized agents to provide you with top-grade injection molding materials, accompanied by detailed technical datasheets for each. This approach helps prevent potential issues related to material sourcing. For standard applications, we recommend our stock materials, which are both cost-effective and efficient. However, if your project requires specialized materials, we can accommodate those needs to meet your exact specifications.
The following materials are the most commonly used for plastic injection molding:
PPA
Get our injection molding materials list available. If your desired material is not listed, confirm availability with our project manager.
Surface Finishing for Injection Molded Parts
As a leading global molding manufacturer with 11 years of industry experience, we have the expertise to provide custom injection molding services tailored to your product needs. We offer a variety of surface finish options for plastic parts, ensuring that the final product meets your exact specifications. If you have additional surface finish requirements, please feel free to contact us.
- As Molded
- SPI Finishes
- Polishing
- Silk Screening
- Pad Printing
- Glossy
- Matte
- Painting
- Etching
- Laser Engraving
- Custom Finishing
HordRT Injection Mold Classes
We produce injection molding tooling mainly from aluminum or tool steel. Our molds are currently best suited for low-volume rapid injection molding. All tooling complies with SPI mold classification standards.
SPI Mold Classification | Cycle Count | Description |
101 | 1,000,000 or more. | HordRT 101-grade steel molds are designed for over 1,000,000 cycles. Made from premium materials, these Class I molds are perfect for multi-cavity structures, and prototype production. |
| 102 | Up to 1,000,000. | HordRT 102-grade steel molds are ideal for medium to high production volumes and parts requiring close tolerances, especially with abrasive materials. Known for high quality and reasonable pricing, these Class II tools meet the demands of large-scale part production. |
| 103 | Up to 500,000. | Designed for up to 500,000 cycles, HordRT Grade 103 steel molds are ideally suited for low to medium production needs and offer excellent value in the general price range. Also known as Class III tools, they are reliable and durable for a variety of manufacturing applications. |
| 104 | Up to 100,000. | HordRT 104-grade steel molds are designed for up to 100,000 cycles. Ideal for low production volumes and non-abrasive materials, these Class IV molds provide a cost-effective solution for small production runs. |
| 105 | Up to 500. | HordRT 105-grade steel molds are designed for up to 500 cycles, specifically for prototype production. Constructed with a focus on cost-effectiveness, these molds are ideal for producing a small quantity of prototype parts. Known as Class V tools. |
From complex designs to production-ready parts.
See how our engineering team solves material, tooling and production challenges to deliver reliable plastic parts at scale.
01
PA66 + 30% GF
Structural Under-Hood Bracket
Replacing a metal bracket with a lighter, production-ready molded component—without compromising strength or dimensional stability.
02
MEDICAL-GRADE PC
Clear Diagnostic Device Housing
Optical clarity, reliable snap fits and clean cosmetic surfaces engineered into a medical-grade polycarbonate enclosure.
03
PC / ABS
Handheld Device Enclosure
Thin walls, snap-fit features and a premium textured finish delivered on a demanding product-launch schedule.
Let’s engineer the right solution.
Send us your CAD files and requirements. Our engineers will provide practical DFM feedback within 24 hours.
Get a free DFM review →Benefits of Injection Molding Service
Injection molding is the fastest, most reliable, and cost-effective way to produce hundreds or thousands of high-quality plastic parts. At HordRT, our rapid injection molding services combine efficiency, precision, and flexibility to bring your ideas to life.
Fast Production & High Efficiency
The injection molding process is highly efficient, which can produce an incredible amount of parts per hour.
Wide Material Selection
Choose from a broad range of plastics, including ABS, PE, PS, PP, and more. We can even combine multiple materials to meet your unique product requirements.
Scalability & Repeatability
From prototype to full-scale production, our molds deliver consistent, repeatable results. Aluminum molds last 5,000–10,000 cycles, while steel molds handle over 100,000 cycles—perfect for both small and large production runs.
Cost-Effective Production
The injection molding process can be repeated hundreds or even thousands of times rapidly, which helps amortize the cost of tooling and reduces the cost per unit to just a few dollars or less.
Common Applications
Injection molding is widely used across industries to produce high-quality, precise, and durable plastic parts. At HordRT, our expert team provides tailored production solutions to help bring your products to market faster.
Medical Devices & Dental
Automotive
Aerospace
Electronics
Consumer Products
Energy
Addition Injection Molding Options
In addition to our standard injection molding services, we also offer Over-Molding and Insert Molding to meet specialized production needs.
Over-molding
Over-molding, also known as two-shot or multiple-material molding, is a custom injection molding process that seamlessly combines two or more materials into a single part or product. Typically, it involves a rigid plastic base component overlaid with a thin, flexible, rubber-like thermoplastic elastomer (TPE) layer or other materials. This can be achieved using either a single-shot (insert molding) or two-shot (multiple-shot molding) technique. Over-molding offers enhanced functionality, improved ergonomics, and aesthetic appeal, making it an excellent option for your next project.
Insert Molding
Insert molding, also known as metal insert molding, is a manufacturing process. It involves embedding metal components into a part during the injection molding cycle. This integrates the inserts directly into the molded plastic, effectively eliminating post-molding assembly operations and reducing manufacturing costs.
Insert Molding
WHY CHOOSE US
INSTANT QUOTING
Timely reply and provide the quote within 24 hours
NO MOQ REQUIRED
Hord does not have minimum order quantity
HIGH QUALITY
ISO 9001 & IATF 16949 certificated and inspect every step
COST-EFFICIENT
+30% cost lower than western competitors
QUICK TUAROUND
Parts make in 7 days and delivery on time
DFM ANALYSIS
Once receiving the inquiry, we will provide you with a preliminary DFM report
PROFESSIONAL SERVICES
More than 20 years of rapid tooling making
GOOD RAPUTATION FROM CUSTOMERS
Customers are satisfied with our services, products quality and delivery time.
Start Production
Injection Molding FAQs
Simply send us your part design, material choice, quantity, and any special requirements. We'll review your request and send you a quote with a production schedule. After you confirm, we start production.
When selecting a plastic material, you should consider factors such as strength, flexibility, temperature resistance, and chemical resistance, depending on the part’s intended use. Our team can guide you in choosing the best material for your application.
Absolutely. We specialize in rapid injection molding for prototypes. This service allows you to test the form, fit, and function of your design using actual production-grade materials and processes. It is the most accurate method to validate your part before investing in high-volume production tooling and runs.
The lead time for mold creation typically ranges from 1 to 2 weeks, depending on the complexity of the mold design. We can provide a more accurate timeline after reviewing your specific requirements.
We process an extensive portfolio of materials to meet diverse application requirements. Our capabilities include, but are not limited to:
General-Purpose Plastics: PP, PE, PS, ABS, PVC (for cost-effective solutions)
Engineering Plastics: PC (polycarbonate) for impact strength, Nylon (PA) for wear resistance, POM (acetal) for precision parts, and PEEK for high performance.
Elastomers & Soft-Touch Materials: TPE, TPU, and Silicone for seals, grips, and over-molding.
Specialty Materials: FDA-approved, flame-retardant (UL94 V-0), glass-filled, or custom-color compounds.
Unsure which material is best? Our technical team will gladly advise you on the optimal choice for your part's function, environment, and cost targets.
Ready to Start Your Next Project?
Partner with us to get high-quality injection molded parts delivered efficiently. Let's bring your ideas to life — get started today!
Caution: HordRT is a China-based company. We strictly adhere to all international trade regulations. We cannot accept any inquiries or projects related to items controlled under U.S. export laws, including, but not limited to, regulations such as the EAR (Export Administration Regulations) and ITAR (International Traffic in Arms Regulations).
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