OEM/ODM Service Process
From concept to delivery - our proven 16-step manufacturing process
OEM/ODM Custom Manufacturing Process
From concept to delivery — a systematic, transparent, and quality-driven approach to bringing your garden tool visions to life. Trusted by GARDENA, FISKARS, BOSCH, and 20+ global brands.
OEM Manufacturing Process
For customers who provide complete product design drawings or 3D models. SUNWELL handles the full manufacturing process from design review to mass production.
Design Drawing Review
Understand customer design intent and assess manufacturability
Work Content
Drawing Review — Audit of 2D engineering drawings, 3D models (STEP/IGES), BOM, and technical specifications
Dimensional & Tolerance Analysis — Identify critical dimensions, fit tolerances, surface roughness requirements
Material Selection — Determine materials based on function and usage (SK5 high carbon steel, 65Mn, aluminum alloys, engineering plastics)
Process Feasibility Assessment — Evaluate forging, stamping, injection molding, machining feasibility; identify risks
DFM Report — Output Design for Manufacturing report with optimization recommendations
Structural Design
Complete detailed structural design ensuring functionality and manufacturability
Work Content
Internal Structure Design — Design internal mechanisms, mating features, locking structures, spring mechanisms
Ergonomic Optimization — Optimize handle shape, weight distribution, operating torque for user comfort
Tolerance Design — Design critical fit tolerances to ensure assembly precision and functional stability
FEA Simulation — Finite Element Analysis on critical load-bearing components to verify strength
2D Drawing Output — Complete part drawings and assembly drawings with dimensions, tolerances, surface treatment
Prototype Making & Validation
Produce physical prototypes to validate design feasibility and functional performance
Work Content
Prototype Fabrication — CNC machining, 3D printing, or silicone molding to produce prototype samples
Appearance Verification — Check appearance, color, and surface treatment against design requirements
Assembly Verification — Validate mating relationships, fit precision, and motion smoothness
Functional Testing — Cutting force tests, open/close smoothness, locking reliability testing
Design Corrections — Revise design based on validation results; produce 2nd prototype if needed
Mold Design
Complete detailed design for mass production tooling
Work Content
Mold Structure Design — Design cavity count, parting line, gating system, cooling system, ejection system
Moldflow Analysis — Optimize gate position, wall thickness, cooling channels for injection parts
Mold Material Selection — Select mold steel (P20, 718H, S136, H13) based on volume and material properties
Mold BOM — Output mold component list and standard parts list
2D/3D Mold Design — Complete mold assembly drawings, part drawings, and 3D models
Mold Manufacturing
Complete mold machining, assembly, and mold trials
Work Content
Mold Part Machining — CNC rough/finish machining, EDM, wire cutting, grinding
Mold Assembly — Assemble mold base, cores, ejection mechanism, cooling system
Mold Trials (T0/T1) — Trial runs to check dimensions, appearance, molding quality
Mold Corrections — Adjust mold based on trial results (polishing, gap adjustment, etc.)
Mold Acceptance — Customer confirms samples; mold reaches production-ready state
P0 Trial Production
Small-batch trial to validate product design and mold design
Work Content
Small Batch Trial — Produce 50-200 units simulating mass production conditions
Product Validation — Verify function, performance, reliability against design requirements
Mold Validation — Verify mold stability, molding quality, expected lifespan
Issue Logging — Record dimensional deviations, appearance defects, assembly difficulties
Design Optimization — Optimize product and mold design based on trial results
P1 Trial Production
Medium-batch trial to validate production processes and quality control systems
Work Content
Medium Batch Trial — Produce 500-1000 units, fully simulating mass production workflow
Process Validation — Verify SOP work instructions, process parameters, fixtures suitability
QC Validation — Verify IQC/IPQC/OQC inspection standards, tools, and sampling plans
Capacity Validation — Verify production line takt time, staffing, output meets order demand
Packaging & Shipping Validation — Verify packaging design and transport protection solutions
Third-Party Certification & Testing
Complete all required certifications and testing for target markets
Work Content
CE Certification — European market access (Machinery Directive, EMC, RoHS)
GS Certification — German safety certification for garden/power tools
UL Certification — North American safety certification (mainly power tools)
REACH/RoHS — Chemical substance compliance testing
Performance Testing — Cutting performance, durability, salt spray, drop testing
Packaging/Transport Testing — ISTA transport testing, drop test, vibration test
Mass Production
Produce order quantity with full quality control
Work Content
Production Scheduling — Arrange production plan and material procurement based on delivery date
Material Preparation — Raw material procurement, outsourced parts, packaging materials
Production Execution — Execute per SOP with full IQC/IPQC/OQC quality control
Process Documentation — Record production data, quality data, exception handling
Finished Goods Warehousing — Inspect and warehouse finished products upon QC pass
Pre-Shipment Inspection
Customer or third-party inspection to confirm products meet order requirements
Work Content
Inspection Preparation — Prepare samples, inspection reports, packing lists, invoices
Customer Inspection — On-site inspection by customer or designated third party (SGS, BV, Intertek)
Inspection Scope — Appearance check, functional test, dimension measurement, packaging check, quantity verification
Issue Resolution — Promptly address any issues found and re-inspect if necessary
Shipment Release — Arrange shipment upon inspection approval
Ready to Start Your Custom Manufacturing Project?
With 38+ years of experience and partnerships with GARDENA, FISKARS, BOSCH, and 20+ global brands, SUNWELL Tools is your trusted OEM/ODM manufacturing partner.
Contact Us Today