What is the development cycle from prototype to mass production?

The development cycle from prototype to mass production depends on part complexity, process readiness, and regulatory requirements—but with an optimized workflow, Neway typically guides projects from concept validation to SOP in 8–20 weeks. This structured approach integrates simulation, rapid prototyping, process validation, and production scaling, supporting programs across automotive, e-mobility, aerospace, and medical device sectors.

Stage 1: Digital Design and Validation (2–4 Weeks)

The cycle begins with CAD modeling, tolerance definition, and FEA for stress, heat, and fluid flow simulations. Different design variants are evaluated before committing to physical prototypes. Manufacturing feasibility is reviewed alongside process planning under our custom parts manufacturing service.

Critical parameters such as load paths, assembly interfaces, cooling strategies, and surface specifications are defined at this stage, ensuring clean transition into prototyping.

Stage 2: Prototype Build and Functional Testing (3–6 Weeks)

Prototypes are produced using CNC machining prototyping, 3D printing prototyping, or rapid molding prototyping depending on geometric requirements. Functional testing covers dimensional validation, flow testing, structural assessment, and material performance checks.

For metal prototypes, materials may align with production-intent alloys such as carbon steel, A356, or MIM 17-4 PH to ensure testing reflects real conditions.

Stage 3: Process Validation and Pre-Production Tooling (3–5 Weeks)

Once functional prototype performance is confirmed, manufacturing processes are validated through trial runs using precision casting, injection molding, MIM, or sheet metal fabrication. DOE and Cp/Cpk studies are carried out to determine production capability, while sample parts for PPAP, FAIR, or regulatory documentation are prepared.

Special processes such as heat treatment, anodizing, or electropolishing are validated to guarantee repeatable performance.

Stage 4: Mass Production Ramp-Up (4–6 Weeks)

Production tooling is finalized and SOP preparations begin. Automation, assembly fixtures, and quality control checks are deployed under a lean manufacturing approach. During ramp-up, Neway maintains strict dimensional monitoring, surface integrity inspection, and material certification, ensuring every unit meets customer requirements.

Additional optimization may be performed during ramp-up to improve cost efficiency or reduce cycle time while protecting quality consistency.

Timeline Summary

• Digital design & FEA: 2–4 weeks

• Prototype build & testing: 3–6 weeks

• Process validation & tooling: 3–5 weeks

• Mass production ramp-up: 4–6 weeks

• Total typical cycle: 8–20 weeks