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yanyan@yanmisz.com
Quality assurance
We strictly follow the ISO 9001 certified quality management system, This reflects our commitment to continuous quality improvement and customer satisfaction.
Our team is dedicated to making sure all parts you order are delivered on time and meet your quality expectations.
Quality Management Systems For Machine Shop
YANMI is committed to the continuous improvement and optimization of all custom manufacturing capabilities from prototype to production, and the corresponding quality control process, including CNC machining, rapid prototyping and rapid tooling.
We strictly follow the ISO 9001 certified quality management system, based on a series of standardized production procedures and work instructions, and use advanced testing equipment to measure and inspect each production step to ensure that your project meets stringent quality specifications.
Our Quality Policy
1
Scientific Management
Establish standardized and scientific management concepts; Formulate reasonable working methods and operating codes; Train excellent employees with first-class skills; Improve production efficiency.
2
Lean Production
Based on the expectation and values from customers, we continue to strengthen many aspects of operation and management such as production planning management, production process optimization, supply chain coordination optimization, production cost control, and staff quality. Continual improving, pursuing excellence, and continuously enhance customer satisfaction.
3
Quality and Efficiency
Through the implementation of the overall quality management system, during each process in the production strengthening quality control and inspection, ensuring the optimization of the company’s processes, and the effective communication between customers and departments, also training the quality awareness of employees, pushing to upgrade continually implement technology, and efficiently manufacturing high-quality products.
4
Innovation and Enterprise
Establish a learning organization system, implement knowledge management, collect and organize the knowledge for corrective and preventive measures, production technology from professional technicians or departments, business data or production experiences to form important valuable resources of company, provide continuous training opportunities for employees, summarize experience, encourage innovation and enhance company cohesion.
YANMI Manufacturing Standards
CNC Machining Standards
Our tolerances follow ISO 2768-1 & JIS standards.
Limits for nominal size | Plastics, Medium class (m) | Metals, Medium class (m) | Metals, fine class (f) |
|---|---|---|---|
0.5mm* to 3mm | ±0.1mm | ±0.1mm | ±0.05mm
|
Over 3mm to 6mm | ±0.1mm | ±0.1mm | ±0.05mm
|
Over 6mm to 30mm | ±0.2mm | ±0.2mm | ±0.1mm
|
Over 30mm to 120mm | ±0.3mm | ±0.3mm | ±0.15mm
|
Over 120mm to 400mm | ±0.5mm | ±0.5mm | ±0.2mm
|
Over 400mm to 1000mm | ±0.8mm | ±0.8mm | ±0.3mm
|
Over 1000mm to 2000mm | ±1.2mm | ±1.2mm | ±0.5mm
|
Over 2000mm to 4000mm | ±2mm | ±2mm |
(*) Please clearly indicate tolerances for nominal sizes below 0.5mm on your technical drawing.
Tightest tolerance: +/-0.0008" (0.02mm)
Tigher tolerances are examined on a case by case basis
For specific hole tolerances please contact our sales team at yanyan@yanmisz.com
3D Printing Standards
Process | Tolerance |
|---|---|
SLA | ± 0.5% with a lower limit of ± 0.15 mm (± 0.006")
|
SLS/MJF | ± 0.3% with a lower limit of ± 0.3 mm (± 0.012") |
Inspection And Quality Control Procedures In Our CNC Machine Shop
Our quality process is run through the whole projects from RFQs to production shipment.
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Two independent reviews of the purchase order is where our QA begins, determining that there are no questions or conflicts regarding dimensions, material, quantities, or delivery dates.
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Then reviewed by experienced personnel involved in the set up and production and individual inspection reports are made for each operation that is required to produce the part.
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All special quality needs and instructions are documented and inspection intervals are then assigned based on tolerances, quantities or complexity of the part.
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We minimize risk by tracking and analyzing every step of our manufacturing process to minimize part to part variation, and assure consistent, reliable quality for every part, every time.
Consistent quality control, from part to part, product to project, we pay attention to detail, problem-solving, researching new materials and processes, investing in technology, building and sustaining a team of professional rapid manufacturing.
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Design for Manufacturing (DFM) review for all of your projects
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Contract and purchaser order review
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Production capacity and production plan review (PMC)
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Incoming raw materials inspection
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Samples and in-process inspection (IPQC)
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Control of nonconforming product and the implementation of corrective and preventive actions
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Final inspection and testing reports and certifications as required(OQC)
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Customer satisfaction surveys twice a year, and strive to exceed customer expectations
Quality Inspection Equipment
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SEREIN Croma 8126 Coordinate Measuring Machine (CMM) 800×1200×600 (mm), MPE (maximum permissible error) 3.0μm
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Granite Inspection Table, 1200×1000 (mm) / 1000×750 (mm)
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Digimatic Heitht Gages, 0-400 (mm)
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Full Range of Vernier Caliper, 0-100-150-200-300-600-1000 (mm)
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Outside Micrometers / Digimatic Holtest, 0-25-75-100-125-150 (mm) / 12-20-50-100 (mm)
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Full Range of Pin Gage / Gage Block, 0.5-12 (mm) / 1.0-100 (mm), Step 0.01mm
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Surface Roughness Tester, Hardness Tester, etc.
Resolving quality issues
Should your order not meet specifications, you will be able to raise any issues within 5 business days of receiving your parts. Our order fulfillment team will resolve these issues as quickly as possible, typically within 1-3 business days.