The Top Chinese Customized Automotive Parts Partner
Tolerance Standard
Design with Confidence, Quote with Accuracy, Deliver with Certainty.
Why Choose RPD?
Professional CNC Machining, sheet fabrication, Injection Molding & rapid prototyping, Professional Services, Comprehensive A-Z Solutions.
Guaranteed Quality & Rigorous Inspection
Advanced Technology & Broad Capabilities
Technical Partnership & Engineering Support
Wide Material/Project Experience
Competitive Value & Cost Optimization
Speed & On-Time Delivery
End-to-End 6D Solutions, From Concept to Mass Production. Integrated 5 Steps Quality Control Across Every Stage.
Phase 1:TR / PRD (Technical Review / Product Requirements Definition)
DFM, material selection & tolerance optimization for manufacturability. .
Concept Validation: Support rapid prototyping for functional verification; identify structural and process risks early.
Cost Engineering: Deliver cost-oriented feedback to minimize redesign cycles prior to EVT.
Phase 2: EVT (Engineering Verification Test)
Precision Engineering: One-stop solutions combining high-speed CNC machining and precision injection molding to deliver tight-tolerance parts for validation testing.
Engineering Support: Offer all-round engineering support including tolerance stacking analysis, surface treatment recommendations, and design optimization.
Phase 3: DVT (Design Verification Test)
Agile Revisions: Quick response to design modifications, ensuring rapid turnaround for the next round of prototype verification.
Visual Samples: Provide visible samples (appearance masters) for design approval.
Incoming Control: IQC (Incoming Quality Control) services to secure material quality.
Phase 4: MVT (Medium-Volume Verification Test)
Process & Fixture Validation: Verify the stability of the production process and the reliability of fixtures/tooling.
Full-Line QC: Implement IQC (Incoming Quality Control) , IPQC (In-Process Quality Control) , and OQC (Outgoing Quality Control) to monitor pilot run quality.
Phase 5: PVT (Process Verification Test)
BOM & Version Control: Identify trial production issues.
Process Standardization: Establish Golden Line production standards to ensure process repeatability and stability.
Comprehensive QC: Full suite of IQC (Incoming Quality Control) , IPQC (In-Process Quality Control) , and FQC (Final Quality Control) services.
Phase 6: MP (Mass Production)
ISO-Certified QC: Full documentation for guaranteed quality.
Lean Manufacturing: Optimize cost & quality.
Efficiency Boost: Modular fixtures for quick changeover.
Full-Lifecycle QC: Routine IQC/FQC/OQC + Post-sale CAPA for continuous improvement.
Solutions for Customized Parts
Design and engineering support to help you turn ideas into manufacturable products.
Engineering & DFM Support
Concept Sketches
Capture creative ideas and illustrate the evolution of product appearance throughout the design process.
Product Renderings
Display the product from multiple views — front, side, top, and perspective — providing a clear and intuitive visual understanding.
Design Specifications
Detail dimensions, color codes, materials, and surface finishes to ensure accurate and reliable production.
Mechanical Structure Design
Structure Drawings
Provide detailed 2D and 3D representations of a product’s internal framework and external layout — including dimensions, shapes, positions, and connection methods of each component.
Engineering Drawings
Focus on manufacturing and processing details, with precise annotations of process parameters, material specifications, and heat treatment requirements to support accurate and reliable production.
CMF Design
Color, Material, and Finish (CMF) Selection
Select the right colors, materials, and surface treatments to achieve the desired appearance, tactile experience, and durability for the product.
Design Support
Provide expert assistance when designers are unfamiliar with specific materials or specialized manufacturing processes — ensuring solutions are both practical, innovative, and reliable.
Cost Estimation & Design-to-Cost
Use experience-based and top-down models to estimate manufacturing costs early in the product development cycle.
Provide actionable cost-reduction strategies — such as design simplification, material substitution, and assembly optimization — to effectively control costs without compromising performance.
Quality Assurance for Every NPI’s Phase
At RPD, quality is embedded in every step of the manufacturing process. We conduct rigorous inspections across all three production phases—pre-production, in-production, and post-production. Full-Line QC: Implement IQC (Incoming Quality Control) , IPQC (In-Process Quality Control) , and OQC (Outgoing Quality Control) to monitor pilot run quality.using advanced equipment such as CMMs (Coordinate Measuring Machines), XRF analyzers, and high-precision measurement tools. With over 20 specialized inspection devices, including two high-accuracy CMMs, our quality control framework ensures that every part meets exact specifications.
Our ISO-certified quality team, supported by more than 10 dedicated quality engineers, brings nearly two decades of expertise in prototyping and manufacturing excellence. We provide detailed inspection reports covering functional performance, regulatory compliance, and dimensional accuracy. This commitment to precision and transparency guarantees that every component we deliver is reliable, traceable, and ready for integration—whether for rapid prototyping or full-scale production.
Our Manufacturing Capabilities of Automotive Parts
Aluminium
Stainless Steel
Steel
Brass
Copper
Bronze
Titanium
Zinc
Low/Mild Carbon Steel
PA/Nylon
POM
PEEK
PMMA
PEI
PPS
PC
ABS
PET
PVC
pp
Rubber/Silicone
PE
HDPE
Carbon Fiber
As machined
Smooth
Anodizing
Sand Blasting
Polishing
Brushing
Black Oxide
Powder Coating
Teflon Coating
Painting
DLC
Passivation
PVD
Electroplating
Mirror Polishing
Heat treatment
Electropolishing
SPI Finish
Silk Screen
Alodine
Laser Engraving
Electroless Plating
Tumbling
Knurling
Would you like to start a project with us?
How can we work close with our client?
A – Z Assistance:
1)Our professional team will provide 24/7 Engineering Support
by one-on-one assistance.
2)Our experienced engineers will freely review and optimize your part designs (DFM), provide actionable feedback, and deliver competitive quotations, which all based on your design drawings, application requirements, and desired outcomes.
4)Throughout production, you’ll receive progress updates every 2–3 days.
5) Upon completion, we’ll share high-quality photos of finished parts and packaging, along with full documentation: inspection reports, shipping details, and material certifications.
NPI Solutions with Expert Engineering Support
What Our NPI Engineering & Support Includes?
Design Review
Analyze CAD models for manufacturability, tolerance feasibility, and material suitability
Material Selection
Recommend the optimal metal, plastic, or composite based on strength, cost, and application needs。
Design Optimization
Adjust sharp corners, deep cavities, thin walls, or hard-to-machine details for efficient production
Tolerance Analysis
Ensure critical dimensions are achievable while avoiding unnecessarily tight tolerances that drive up cost
Tool Access Check
Identify features that may require special tooling or 5-axis machining
Cost Reduction Suggestions
Propose design changes that reduce cycle time, tool wear, or secondary operations
How to work with RPD?
Upload Design Drawing
- Send 2D/3D drawing online or by email
- Design Drawing format: STEP, IGES, DWG, PDF, STL, etc
- If you have multiple files, zip them or send by email to ashley@rdpmfg.com
DFM Analysis & Quote
- Our engineer team will review & analyze every file carefully.
- Request more details or provide optimize solution.
- Offer accurate quote with 6 hours.
Order Confirmation
- Confirm order & delivery details, sign the contract.
- Arrange & start to production.
- Check and confirm all details during production, Track every steps.
Parts Delivered
- Control quality during production.
- Provide order photos,inspection sheet and other request documents.
- Pack & label orders, then shipping.