Your Leading Machining Supplier
Established in Shanghai in 2014 by industry veteran Johnny Zhao, SQM has become a trusted leader in global procurement for casting and forging. With roots in the foundry industry dating back to 2003, Johnny Zhao built SQM to provide innovative, reliable solutions for industrial manufacturers worldwide. Our machining services include drilling, milling, turning, and CNC machining. Our double-check process, first by the manufacturer's engineers and then by our own team, guarantees consistent product quality.
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![Drilling Services]()
Drilling ServicesOur drilling service ensures that every hole is perfectly placed and dimensioned. Using CNC drills, we produce holes with exact depths, diameters, and spacing, whether it's a simple through-hole -
![Milling Service]()
Milling ServiceWhen it comes to machining intricate geometries and multi-featured components, milling is the way to go. Our CNC milling machines use rotating cutters to shape complex parts with high precision. This -
![Turning Services]()
Turning ServicesOur turning service specializes in creating precision parts with tight tolerances using advanced CNC lathes. We don't just shape cylindrical components, but we can also produce conical, tapered, and -
![CNC Machining Services]()
CNC Machining ServicesAt SQM, we're experts in CNC machining, providing high-precision parts for small and medium batch production. Thanks to our advanced CNC technology and years of experience, we craft components
Why Choose Us?
Professional Team
SQM's engineering and quality control team, consisting of 45 professionals, ensures consistent quality delivery across all projects.
Quality Assurance
SQM strictly complies with internationally recognized quality standards and holds key certifications, including ISO 9001 and TS16949.
Advanced Equipment
Our laboratory is equipped with a wide range of advanced testing equipment, such as spectrometers for chemical analysis, tensile testing machines for mechanical analysis, hardness testers, Charpy impact testing systems, as well as X-ray and magnetic particle inspection (MPI) devices.
Production Market
SQM collaborates with 42 trusted suppliers across China and provides services to more than 130 global industrial equipment manufacturers in Europe and North America.
Types of Machining Services
CNC Machining Services
At SQM, we're experts in CNC machining, providing high-precision parts for small and medium batch production. Thanks to our advanced CNC technology and years of experience, we craft components with tight tolerances and complex geometries.
Turning Services
Our turning service specializes in creating precision parts with tight tolerances using advanced CNC lathes. We don't just shape cylindrical components, but we can also produce conical, tapered, and stepped geometries to meet even the most complex design requirements.
Milling Service
When it comes to machining intricate geometries and multi-featured components, milling is the way to go. Our CNC milling machines use rotating cutters to shape complex parts with high precision. This process is ideal for producing detailed contours, pockets, and 3D surfaces.
Drilling Services
Our drilling service ensures that every hole is perfectly placed and dimensioned. Using CNC drills, we produce holes with exact depths, diameters, and spacing, whether it's a simple through-hole or a more intricate blind hole.
Parameters of Machining
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Product name |
Aluminum Castings/Cast Iron Castings/Precision Steel Castings |
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Material |
Aluminum/Cast Iron/Cast Steel |
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Size |
Customized Size |
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Surface treatment |
Polishing/Powder Coating/Electrophoresis/Electroplating |
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Service |
Customize ODM OEM |
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MOQ |
50 Pcs |
Characteristics of Machining
Strength
The strength of a machined casting is determined by the material used and the casting process. Different applications require varying levels of strength, and this attribute can be tailored accordingly.
Hardness
Hardness is a measure of a material's resistance to deformation or abrasion. Machined castings can be engineered to achieve the required hardness for specific applications.
Corrosion Resistance
Corrosion resistance is essential in environments where exposure to moisture, chemicals, or other corrosive substances is a concern. The choice of material and surface treatments can enhance corrosion resistance.
Precision
The precision of machined castings is a hallmark of their manufacturing process. Their intricate designs and high-level tolerances make them ideal for applications where precision is critical.
Common Materials Used in Machining
Cast iron
Cast iron is an iron-carbon alloy with a carbon content greater than 2.1%. It has excellent castability, wear resistance, shock absorption and other characteristics. There are many types of cast iron, generally divided into white cast iron, gray cast iron, malleable cast iron, ductile iron, etc. Gray cast iron has three structures: ferrite + graphite, ferrite + graphite + pearlite, and pearlite + graphite. It is suitable for manufacturing parts that bear static loads.
Aluminum alloy
Aluminum alloys are widely used due to their low density, high strength, good corrosion resistance and excellent casting properties. Aluminum alloy has good casting performance and high fluidity. It can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth. In addition, aluminum alloys can also undergo a variety of surface treatments, such as electroplating, spraying, etc.
Zinc alloy
Zinc alloy is an alloy based on zinc with the addition of other elements. It has good casting properties and mechanical properties. Zinc alloy has a large specific gravity, low melting point, and is easy to die-cast. At the same time, zinc alloy castings have a smooth surface and can be processed in a variety of surfaces.
Magnesium alloy
Magnesium alloy has the characteristics of low density, good specific strength and stiffness, good vibration damping performance, and strong electromagnetic interference shielding ability. Magnesium alloy has relatively poor casting performance, low fluidity, and greater tendency to crack and shrink. However, magnesium alloys are widely used in automobiles, aerospace, electronics and other fields because it can significantly improve the fuel economy, reduce exhaust emissions and reduce weight of products.
Copper alloy
Copper alloy has the characteristics of good electrical conductivity, thermal conductivity, corrosion resistance and low friction coefficient. Copper alloys have excellent casting properties and can be made into castings with complex shapes. Copper alloys are widely used in the electronics industry, machinery industry, aerospace industry, chemical industry and other fields.
Certificates
Package & Delivery
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Package |
Tissue paper, EPE, standard carton or plastic tray, sponge tray, cardboard tray, etc., can be customized according to customer requirements. |
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Delivery |
DHL, FedEx, EMS, UPS, or customer's requirements. |
FAQ
We're well-known as one of the leading machining manufacturers and suppliers in China. Please feel free to buy high quality machining from our factory. For customized service, contact us now.
Drilling Services, Milling Service, Turning ServicesPopular Products
