The Top Chinese NPI solutions Partner
Mass Production Phase Services
Ready to Scale Up?
Whether you need 1,000 parts or 10 million, we have the systems, team, and experience to deliver. Let’s talk about your next mass production project.
Expert DFM & process optimization
Rigorous Quality Control
End‑to‑End Project Management
Diverse Manufacturing Capabilities.
Reliable Delivery
Mass Production Every steps you can count on us
Precision Cost and Delivery Management Achieve lower defect rates and verifiable quality assurance for every batch.
We combine lean manufacturing with smart process control to deliver consistent quality at scale. Our approach ensures:
Lower defect rates – through real‑time monitoring, strict process parameters, and continuous improvement
Verifiable quality – every batch comes with full traceability, inspection records, and dimensional reports
On‑time delivery – backed by scientific production scheduling and proactive risk management
Cost optimization – achieved by reducing rework, scrap, and unnecessary overhead
Stable Material Supply
Minimizes delivery delays and material mismatches, ensuring consistent batch delivery.
Full-Stage Inspection
Enables quality control across raw materials, in-process items, and finished goods.
Smart Monitoring
Uses intelligent devices and digital systems to improve accuracy and efficiency.
Traceable Reports
Provides end-to-end batch-level data for full accountability
Optimize Processes & Output Stability – Expert Technical Support
Process Optimization: SPC implementation, real‑time parameter monitoring, closed‑loop control systems.
Output Stability: Batch‑to‑batch variation ≤ ±2%; defect rate consistently below 0.5%.
Cycle Time Reduction: Average 15–20% improvement through value‑stream mapping and lean techniques.
Technical Team: 12 engineers with expertise in CNC, molding, stamping, casting, and tooling.
DFM Support:100% of projects receive formal DFM review before production begins.
Response Time: Technical inquiries addressed within 2 hours during business hours.
Continuous Training: Monthly operator certification and skills upgrade programs
Real-Time Monitoring
Enables immediate detection and rapid resolution of production issues.
Process Optimization
Continuously improves process parameters and quality control methods.
Data-Driven Decisions
Guides solutions with actionable insights, eliminating trial and error.
Operational Reliability
Delivers stable, predictable production while minimizing risks.
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.
Our Manufacturing Capabilities
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
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.
Custom Parts For Different Industries
Provide CNC Machining One-Stop Services for Different Industries
Our Customers
Trusted by These Brands
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.
FAQs About Our Mass Production Phase Services
What is the Mass Production (MP) phase in NPI?
Mass Production is the final stage of the New Product Introduction process, where the product enters full-scale, sustaining production. At this point, the responsibility shifts primarily from engineering to the contract manufacturer and operations team, and the focus is on producing high volumes with stable quality and efficiency.
What quality control measures should be in place during Mass Production?
In-process inspections at critical checkpoints
Statistical Process Control (SPC) to monitor trends and detect deviations early
End-of-line (EoL) functional testing to catch defects before shipment
Traceability systems to track every batch and component lot number, which is increasingly important for compliance and ESG reporting.
What are the biggest challenges when transitioning from NPI to Mass Production?
The most common challenge is the “hand-off” gap: prototypes are often built with high engineering attention and manual adjustments, while mass production relies on automated processes and fixed parameters. If process knowledge isn’t properly documented and transferred, yield can drop significantly, sometimes by 10% or more when moving to volume production.
How can RPD ensure consistent quality across different production batches?
Standardized operating procedures for every process step
Regular equipment calibration and maintenance
Operator training and certification programs
Closed-loop feedback systems that feed quality data back into process adjustments
Periodic process audits to verify compliance
Can we store the mold at your facility for future production orders? Do you provide free maintenance for the mold?
Yes, we offer two key benefits for molds set up at our facility: free storage and free maintenance.
CNC Resources
What is a CNC Machining Center?
A CNC machining center is an advanced, computer-controlled machine tool capable of performing multiple machining operations—such as milling, drilling, tapping, boring, and sometimes turning.
Ashely . March 9, 2026
How many kinds of Types in CNC Machining Centers?
There are at least 5 different CNC lathes type in Machining Centers: Vertical Machining Center, Horizontal Machining, 5-Axis Machining Center, Gantry / Bridge Mill, Turn-Mill Center (Multi-Tasking).
Ashely . March 9, 2026
What is CNC Machining?
CNC (Computer Numerical Control) machining is a subtractive manufacturing process in which pre-programmed computer software controls the movement of factory tools and machinery to remove material from a solid workpiece, creating a finished part or product.
Ashely . March 9, 2026