Quality Assurance at Tonza's system

Utilizing advanced manufacturing processes, stringent quality assurance protocols, and strict compliance with industry standards, we guarantee exceptional quality, precision, and durability for your prototypes and on-demand production parts.

Our Quality Policy

Using advanced testing technology and equipment, we inspect dimensions, hardness, tensile strength, and elongation throughout production to ensure superior performance and customer satisfaction.

TonZa is dedicated to continuously improving and optimizing all aspects of custom manufacturing, from prototyping to production, along with the corresponding quality control processes, including CNC machining, rapid prototyping, and rapid tooling.

We adhere strictly to the ISO 9001-certified quality management system, following standardized production procedures and work instructions. Utilizing advanced testing equipment, we meticulously measure and inspect each stage of production to ensure your project meets the highest quality standards.

TonZa Making | Quality Assurance

Click: ISO 9001:2015 Certification

TonZa Making | Quality Assurance

Implement standardized and scientific management practices, develop efficient workflows and operating guidelines, cultivate highly skilled employees, and enhance production efficiency.

TonZa Making | Quality Assurance

Driven by customer expectations and values, we continuously enhance our operations and management, including production planning, process optimization, supply chain coordination, cost control, and workforce quality. We strive for continuous improvement, excellence, and greater customer satisfaction.

TonZa Making | Quality Assurance
 

By implementing a comprehensive quality management system, we strengthen quality control and inspections at every production stage, optimize company processes, and enhance communication between customers and departments. We also foster employee quality awareness, drive technological advancements, and ensure the efficient production of high-quality products.

TonZa Making | Quality Assurance

By implementing a comprehensive quality management system, we reinforce quality control and inspections throughout production, optimize company processes, and enhance communication between customers and departments. Additionally, we cultivate employee quality awareness, drive continuous technological advancements, and ensure the efficient production of high-quality products.

Quality Control Procedures

Our quality process is integrated into every stage of the project, from RFQs to final production and shipment.

Quality Control Systems for Machine Shop

Utilizing state-of-the-art testing technology and advanced equipment, we conduct thorough inspections throughout the entire production process, measuring dimensions, hardness, tensile strength, and elongation of workpieces to guarantee superior performance and ultimate customer satisfaction.

Incoming Inspection

We thoroughly inspect and test all materials supplied by our vendors to ensure they meet both customer requirements and our strict quality standards.

Sampling techniques:

① Hierarchical sampling
② Diagonal Sampling
③ Triangular sampling
④ S-type sampling

In-process Inspection

We thoroughly inspect and test all materials supplied by our vendors to ensure they meet both customer requirements and our strict quality standards.

Sampling techniques:

① Hierarchical sampling
② Diagonal Sampling
③ Triangular sampling
④ S-type sampling

Pre-Shipment Inspection

We thoroughly inspect and test all materials supplied by our vendors to ensure they meet both customer requirements and our strict quality standards.

Sampling techniques:

① Hierarchical sampling
② Diagonal Sampling
③ Triangular sampling
④ S-type sampling

Equipment

“Testing instruments play a crucial role in production, ensuring the manufacturing of high-quality products. Our facility features specialized workshops equipped with advanced technology, enabling comprehensive inspections and reinforcing our stringent quality control processes.”

Coordinate Measure Machine

High Performance 2D Image

Hardness Tester

Surface Roughness Tester

Impact Tester

Tensile Tester

Part of List
Item Model Brand Accuracy Qty Period
2D CMM VMS-3020F Ada 0.005mm 1 1 year
2.5D CMM CNC-4030AH Ada 0.005mm 1 1 year
3D CMM CAPTUM 7/10/6 Zeiss 0.001mm 1 1 year
3D CMM EXPERT 15108 Leeder 0.001mm 1 1 year
3D CMM FLY1086 Leeder 0.001mm 1 1 year
Semi-automatic altimeter LH-600E/EG Mitoyo 0.001mm 1 year
Semi-automatic altimeter V4-400 TRIMOS 0.001mm 1 1 year
High precision yaw meter J2-D-200 Azamara 0.002mm 1 1 year
Manual altimeter 0-600mm Mitoyo 0.01 mm 1 1 year
Cyindricity instrument 1494x862x1685 will 0.001mm 1 1 year
Vickers hardness tester HV-1000 Heng 1 HRB 1 1 year
Rockwell hardness tester HR-150A Dr. force 2HRC 1 1 year
Surfagage 178-039 Mitoyo 0.01 Ra 1 1 year

Quality Reports

“The quality inspection report reflects the results of rigorous product testing, ensuring compliance with relevant quality standards and safety requirements.”

We provide a comprehensive final inspection report outlining all inspection processes and results.
TonZa Making | Quality Assurance
Final Article Inspection
Dimensional reports provide key measurements of parts, randomly selected, and inspected to ensure compliance with allowed tolerances.
TonZa Making | Quality Assurance
Dimensional Report
We evaluate component functionality to ensure proper fitting of features like threaded holes during assembly.
TonZa Making | Quality Assurance
Performance Inspection
Upon request, we provide a RoHS report verifying a material's compliance with RoHS standards.
TonZa Making | Quality Assurance
RoHS Report