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Welcome to the world of Zhengrong precision machining.
| Feature | CNC Machining | Turning | Milling | Grinding | Wire EDM |
| Machining method | Computer numerical control | Computer numerical control | Computer numerical control | Abrasive | Electrical discharge machining |
| Machining principle | Material is removed by controlling the movement of the machine tool | The workpiece rotates, and the cutting tool moves along a straight line | The cutting tool rotates, and the workpiece is fixed | Material is removed by abrasive grinding wheel | Material is eroded by spark |
| Applicable materials | Metal, plastic, wood, composite materials, etc. | Metal | Metal, plastic, wood, composite materials, etc. | Conductive materials | Conductive materials |
| Machining accuracy | High | High | Medium | High | Low |
| Machining efficiency | Medium | High | Medium | Low | Low |
| Machining range | Plane, curved surface, irregular shape | Rotational body | Plane, curved surface, irregular shape | Complex shape | Complex shape |
| Machining cost | Medium | Low | Medium | High | High |
| Application scenarios | Batch production, complex parts processing | Batch production of rotary parts | Small and medium batch parts processing, complex shape parts processing | Processing of difficult-to-process materials, thin-walled parts | Processing of complex shapes of difficult-to-process materials |
Qingdao Zhengrong Precision Machinary Limited Company was established in February 2007, located in chengyang district, Qingdao city,Shandong Province,China.
The company has strict quality management in accordance with ISO9000.
We are good at processing parts of different materials, such as metal materials, stainless steel, steel, aluminum, iron, alloy, plastic, quartz glass,etc.
We are skilled in processing various difficult and complex parts, combining various processing techniques such as heat treatment, quenching, milling knurling,centerless grinding,wire cutting, milling, perforation, laser welding, grinding, cnc,wedm-ls,etc.
We are good at processing different parts, such as Bracket, Adapter, Shell, Flange, Timing Pulley, BLOCK,Bushing, Shaft Pin, Gear Shaft, Roller, Spur gear, Connector, Plate, Pipe Joint, Base, Baffle, Gasket/Shim, Rings, Insulated guide wheel, Guide pillar,etc.
The parts we process are widely used in semiconductor testing equipment, medical equipment, aerospace, hydrogen engines, automotive assembly lines, Steel Strip Packaging Machine, CCD Sorting Machine, boats, EMU, cameras, mobile phones, and more.
Our company has over 30 sets of processing equipments, including lathes, milling machines, grinders, wire cutting machines, CNC Machining Center, and other equipment. We also have a professional quality inspection department and various testing equipment to ensure that products are qualified before leaving the factory.
We specialize in precision, special, small parts processing and have more than 18 years of processing experience. We are warmly welcomed friends to visit our factory and online communication.
Q1: What kind of parts do you specialize in machining?
We excel at producing precise, small, special, and complex parts. Our expertise lies in creating intricate components that require tight tolerances and unique functionalities.
Q2: What processing technologies do you offer?
We possess a comprehensive suite of CNC machining capabilities, including 3-4 axis CNC machining, turning, milling, centerless grinding, surface grinding, cylindrical grinding, EDM (Electrical Discharge Machining), wire cutting, and laser cutting. This extensive range allows us to tackle a wide variety of projects with the most appropriate technique.
Q3: What tolerances can you guarantee?
We hold ourselves to the highest precision standards, guaranteeing tolerances down to +/- 0.001mm (1 micron or 1 micrometer). This ensures exceptional accuracy and functionality for your parts.
Q4: What is the typical lead time for production?
Our lead times are flexible and depend on the complexity of your project. Typically, we can complete production within 7-30 days.
Q5: Do you accept sample orders? And what is the sample lead time?
Absolutely! We understand the importance of sample verification before mass production. We offer sample orders with a quick turnaround time of approximately 7 days.
Q6: Do you provide inspection reports and material certificates?
Yes, we provide comprehensive documentation for your parts, including detailed inspection reports and material certificates. Additionally, we can offer heat treatment reports to ensure complete transparency and traceability.
Q7: How do you ensure quality?
We prioritize quality throughout the entire process. We have a dedicated in-house quality inspection department equipped with CMM (Coordinate Measuring Machine) testing capabilities. Furthermore, we support third-party testing to guarantee the highest quality standards for your project.
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