About Junying Metal Manufacturing Co Limited
Junying Metal Manufacturing Co., Limited is a leading precision machining company headquartered in Dongguan, Guangdong, China, specializing in manufacturing high-quality components from a diverse range of ferrous and non-ferrous materials. Our 5,000-square-meter facility at Room 101, No. 1 Xixing Street, Shatou, Chang’an Town operates advanced CNC turning centers, multi-axis milling machines, grinding equipment, and specialized thread cutting machinery. We serve global clients across automotive, construction, industrial equipment, and heavy machinery sectors, delivering components that meet stringent quality standards and dimensional requirements.
Understanding material properties is fundamental to successful precision machining. Steel grades such as SPHC and SPCC are widely used in manufacturing due to their excellent formability, weldability, and cost-effectiveness. SPHC, which stands for Steel Plate Hot Commercial, is a hot-rolled steel grade with good drawing and forming characteristics suitable for general structural applications. SPCC, or Steel Plate Cold Commercial, is a cold-rolled version that offers superior surface finish and tighter dimensional tolerances. The equivalent grades under different international standards vary: SPHC corresponds approximately to ASTM A1011 CS Type B, while SPCC compares to ASTM A1008 CS Type B. Understanding these equivalences is essential when specifying materials for components that must meet global standards.
Buttress Thread Engineering and Precision Manufacturing
Buttress threads represent a specialized thread form designed for applications where high axial loads are applied primarily in one direction. Unlike standard V-threads that distribute load symmetrically, the buttress thread profile features one face at a steep angle and the other nearly perpendicular to the thread axis, creating an asymmetric shape that maximizes load-bearing capacity in the intended direction. Engineers use a buttress thread calculator to determine optimal thread dimensions, load capacities, and manufacturing parameters for specific applications ranging from oilfield equipment and screw jacks to artillery mechanisms and press frames.
The key parameters of buttress thread design include thread depth, pitch, root radius, and flank angles. The load-bearing flank typically has a 7-degree angle from the perpendicular axis, while the trailing flank is set at 45 degrees. This geometry results in a thread that can handle significantly higher axial loads in one direction compared to standard thread forms of the same size. Our CNC thread cutting and thread rolling operations are capable of producing buttress thread profiles with high precision, ensuring consistent engagement and reliable load distribution across production batches. The following table summarizes our thread manufacturing capabilities and quality standards:
| Thread Type | Manufacturing Method | Tolerance Grade | Materials Processed |
|---|---|---|---|
| Buttress Threads | CNC Turning & Thread Milling | Class 2G-3G | Steel, Stainless Steel, Alloy Steel |
| Standard V-Threads | Rolling & Cutting | Class 2A-3A | All Machinable Materials |
| Acme Threads | CNC Turning | Class 2C-3C | Carbon Steel, Brass, Aluminum |
| Pipe Threads | CNC Tapping & Threading | NPT, BSP Standards | Steel, Stainless Steel, Plastics |
| Custom Threads | CNC Milling & EDM | Per Customer Specification | All Materials |
Material Processing Capabilities for Steel Components
Our experience machining SPHC, SPCC, and equivalent steel grades spans thousands of production runs across diverse applications. Hot-rolled SPHC steel requires careful attention to surface scale removal and tool selection due to its slightly harder surface layer, while cold-rolled SPCC provides a cleaner starting surface that reduces tool wear and improves surface finish consistency. Both materials respond well to our CNC turning and milling processes when appropriate cutting speeds, feed rates, and coolant strategies are applied. We maintain comprehensive material inventory and can source specific grades and sizes to match customer requirements, reducing lead times and material certification delays.
Contact Junying Metal Manufacturing Co., Limited
Address: Room 101, No. 1 Xixing Street, Shatou, Chang’an Town, Dongguan City, Guangdong Province, China
Tel: +86 769 8289 0830 Email: [email protected]
Phone: +86 18926517996 Skype: Junying
Website: https://www.cnclathing.com/