Custom Metal Parts Manufacturer in China | CNC, Casting & Stamping | Prime Custom Parts
Since 1993, we provide ISO-certified stamping, casting, CNC machining , screws, grate bars and plastic parts for North American and European OEMs.
Precision Metal Stamping
We offer precise stamping services for accurate and reliable components.
Custom Welding Services
Our welding solutions ensure strong and durable assemblies tailored to your needs.
High-Quality Casting Parts
We deliver casting parts that meet your specifications with excellent finish and strength.
Durable Fasteners Supply
We supply a wide range of fasteners, ensuring secure and lasting connections.
Provide revolutionary custom metal parts for your industry
Precision Metal Stamping & Deep Drawing
High-volume metal stamping and deep drawing for automotive, electronics, and industrial parts—tooling to inspection optimized for repeatability, clean edges, and dimensional control.
Key Specs
Materials: Carbon steel / Stainless / Aluminum / Copper & Brass / Spring steel
Tolerance
Typical ±0.05 mm (feature-dependent)
Equipment
Progressive & compound dies / Deep drawing / Deburr & tapping
Capacity
Prototype to production, consistent batches
Custom Hot & Cold Forging Parts
Custom hot and cold forging parts, open- or closed-die, delivering strength and fatigue resistance—ideal for load-bearing components where grain flow truly matters most.
Key Specs
Materials: Carbon & alloy steel / Stainless / Specialty grades
Tolerance
Near-net + CNC finish on critical faces
Equipment
Die forging / Trimming / optional heat treatment options
Capacity
Small to medium-lot, repeatable die control
Mining & Mineral Processing Wear Parts
Wear-resistant mining and mineral processing parts engineered for abrasion and impact zones—built to reduce downtime, protect equipment, and extend service intervals reliably.
Key Specs
Materials: High-manganese / Wear-resistant steels / Abrasion-resistant alloys
Tolerance
Fit-critical machining where required
Equipment
Forging/Casting + CNC finishing / Hardfacing optional
Capacity
Custom wear parts by drawing or sample
Structural Fabrication & Certified Welding
Certified fabrication and welding for frames, brackets, and assemblies—distortion controlled, weld quality consistent, fit-up reliable, results repeatable.
Key Specs
Processes: MIG / TIG / Spot / Laser (as applicable)
Materials
Steel / Stainless / Aluminum
Inspection
Visual + dimensional checks
Capacity
One-offs to repeat production assemblies
Hydraulic Cylinder Components
Precision machining for cylinder components including glands, pistons, bushings, and sleeves—built for sealing performance, accuracy, and long service life.
Key Specs
Materials: 4140/42CrMo / Stainless / Aluminum
Tolerance
Tight fits for sealing & bearing areas
Equipment
CNC turning / boring / threading
Capability
Surface finish & concentricity control
CNC Machining & Turning Services
Multi-axis CNC machining for complex components—supporting tight tolerances, consistent repeatability, and stable production output.
Key Specs
Materials: Steel / Stainless / Aluminum / Brass / Plastics
Tolerance
Down to ±0.01 mm (critical features)
Equipment
CNC turning + milling / multi-axis options
Capability
Threads / pockets / precision holes
Investment Casting & Sand Casting
Custom cast parts for complex geometry and cost-efficient volume—offering near-net shape with optional machining and inspection.
Key Specs
Processes: Investment / Sand casting
Materials
Stainless / Carbon steel / Ductile iron / (Al optional)
Inspection
Dimensional + material verification (NDT optional)
Capability
Near-net shape + CNC finish
Custom Injection Molding Parts
High-precision injection molding for OEM plastic components—supporting stable repeatability, good cosmetics, and insert molding options.
Key Specs
Materials: ABS / PA / PC / POM / PP
Tolerance
Typical ±0.05–0.1 mm (part-dependent)
Capability
Insert molding / surface texture / precise color matching
Scale
Prototype molds to production tooling
Non-Standard & Custom Fasteners
Custom bolts, screws, nuts, and threaded parts made to spec—material and coating options available for real-world corrosion and assembly needs.
Key Specs
Standards: DIN / ISO / ASTM (or custom)
Materials
Carbon / Alloy / Stainless / Brass
Coatings
Zinc / Nickel / Black oxide / Passivation, plus other coatings
Capability
Thread control, torque-ready consistency
Engineered for Demanding OEM Applications
Our custom CNC, casting, stamping, plastic parts, screws and grate bars are already working in automotive and industrial machinery, electrical and power distribution systems, construction fastening solutions, and cement and mining equipment. We focus on long-term reliability, consistent quality and documents your OEM team can trust.
Automotive & Industrial Equipment
We support automotive and industrial equipment OEMs with custom brackets, housings, flanges and spacer rings produced through our precise CNC machinedparts service, keeping critical dimensions, tolerances and surface finishes under control from sample to mass production.
Electrical & Power Distribution
For switchgear, control panels and power distribution units, we supply stable, flame-retardant plastic parts such as insulation plates, covers and small structural components, machined and molded to your drawings with clean edges and reliable material performance.
Construction & Fastening Systems
Construction hardware brands and fastening system integrators work with us for project-based custom screws and fasteners that match their thread standards, drive types, coatings and packaging requirements for global building and infrastructure projects.
Cement, Mining & High-Temperature Equipment
In cement coolers, kilns, boilers and mining equipment, our heat-resistant grate bars are engineered to withstand abrasive clinker, thermal shock and heavy mechanical loads, helping plants extend maintenance intervals and stabilize production.
Who we are
Your Partner in Custom Hardware Solutions
Founded in 1993, we have over 30 years of experience in providing one-stop processing services for metal components.
We hold ISO international quality certification, ensuring consistent quality in every product. Our expertise covers stamping, welding, casting, and fasteners.
Our products are exported worldwide, including the USA, Canada, Europe, Australia, Southeast Asia, and the Middle East.
Quality Parts for Your Success
We are committed to helping you achieve your goals with reliable custom hardware solutions.
About Us
Comprehensive service solutions from mold design to mass production.
We offer comprehensive services from design to delivery, ensuring smooth and efficient procurement.
ISO 9001 Certified & Rigorous Quality Control
Our commitment to quality is absolute. From raw material spectral analysis to final CMM inspection, every part meets the highest international standards, guaranteeing reliability in your final product.
Decades of Proven Engineering Expertise
Since 1993, we've solved complex manufacturing challenges. Our engineers provide Design for Manufacturability (DFM) feedback to optimize your parts for performance and cost-efficiency.
What we offer
Custom Solutions to Meet Your Specific Needs
We provide tailored services to help streamline your production and improve efficiency.
Metal Stamping
Precise and reliable stamping services for complex components.
Welding Services
Customized welding solutions for durable assemblies.
Casting Parts
High-quality casting parts with excellent finish and strength.
Fasteners Supply
A wide range of durable fasteners for secure connections.
Custom Fabrication
Tailored fabrication services to meet your unique requirements.
Surface Finishing
Professional finishing services for a polished, durable product.
Our Certificate
Third-party verification supports supplier approval. Below are our ISO 9001 certificate, SGS test report, and CNIPA utility model patents. If you need a PDF copy for internal review, tell us which document you require.
Our Happy Clients
Prime's custom plastic parts passed our incoming inspection and were identical to the approved samples. The quality control reports and packaging labels were clear and easy to understand, facilitating receiving and traceability. The quality is reliable and highly predictable.
Sarah Lee
Building Success Together with Quality Components
- Tailored Solutions
- Trusted Expertise
- Quality Assurance
- Timely Delivery
- Customer-Focused Service
- Global Reach
- Responsive Communication
- Long-Term Partnership
Our Advantages in Custom Parts Manufacturing
Quality assurance: we strictly adhere to ISO quality standards, and has obtained ISO 9001 certification. This means that our production lines use advanced technology to make accuracy and precision possible. We have advanced measuring and testing equipment, able to check all imported materials and parts to meet your specifications. That’s what makes our company stand out. Learn more about our quality control system. More information:
Free Instant Quote within 24 Hours
Generally, quotations will be delivered in 24 hours after submitting email with clear information. You can get product price, freight, tax, delivery date, best processing method and transportation method, etc.
30+ Years in Parts Manufacturing Online
In the online custom parts processing has been 30 years, our engineers have accumulated rich experience. We can handle all types of projects.
Factory Direct Price & ISO9001Quality Assurance
Our in-house facilities allow us to quickly complete your project.Factory lower price and fast lead-time. ISO9001Certified Quality.
Fast Logistics
Own equipment, unlimited capacity, experienced engineers and flexible production systems allow us to create your prototypes and production parts in no time.
Your Trusted Resource for Metal Parts Sourcing
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Frequently Asked Questions
Have a question? If you can’t find the answer here, our customer support team is ready to assist you. Reach out anytime!
How do you ensure the quality of hardware parts purchased from Prime?
At Prime, we prioritize quality by adhering to strict quality control measures throughout the production process. Our products are manufactured in accordance with ISO standards, ensuring consistency and reliability. We also offer sample testing to ensure the products meet your exact specifications before mass production, so you can be confident in the quality of your order.
Are Prime's customized hardware parts competitively priced?
Prime offers highly competitive pricing through efficient production processes and effective supply chain management. By optimizing these areas, we keep costs low without compromising quality. We provide personalized quotes based on your order size and specific requirements, ensuring you receive the best value for your investment.
Can Prime meet delivery deadlines?
Yes, Prime has extensive experience in international logistics, ensuring that orders are delivered on time. We work closely with you to develop a detailed production and shipping schedule tailored to your timeline. If you have urgent needs, we also offer expedited services to guarantee timely delivery and meet your business demands.
What kind of after-sales support does Prime offer？
Prime offers comprehensive after-sales support to ensure customer satisfaction. If there are any issues with the products after delivery, our customer service team is available to address your concerns and provide timely solutions. We maintain clear communication throughout the process to ensure a smooth and satisfactory experience for you.
How does Prime handle shipping and packaging?
Prime ensures that all products are securely packaged to prevent damage during transit. We use high-quality packaging materials tailored to the size and nature of the products. For large orders or specialized items, we offer customized packaging solutions to safeguard the products and ensure they arrive in perfect condition.
What customization options does Prime offer for hardware parts?
Prime specializes in providing tailored solutions to meet your specific needs. Whether it’s custom dimensions, materials, or special functionality, our engineering team works closely with you to bring your design to life. Share your requirements with us, and we’ll provide the best possible customization options to suit your project.
Get in touch
Custom Hardware Parts Made Easy
At Prime, we simplify the process of sourcing high-quality, customized hardware parts for your business. Follow these three simple steps to get started:
Tell Us Your Requirements
Share detailed information about your needs, including drawings, reference images, and any specific ideas or specifications you have in mind.
Receive Tailored Solutions & Quote
Based on your requirements and design, we’ll provide a custom solution and send you a detailed quote within 24 hours.
Approve for Production
Once you approve the design and quote, we’ll begin mass production and take care of the shipping, ensuring timely delivery.
Ready to Start Your Next Project?
Let our engineers review your requirements. Submit your drawings (CAD, PDF, etc.) or specifications for a comprehensive, no-obligation quote within 48 hours.
We ordered custom stamped parts based on the drawings, and the Prime team quickly confirmed the critical dimensions and important features before production. The parts arrived clean and burr-free, ready for assembly. Their attention to detail and consistent quality make them a trustworthy partner.
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