Material
Stainless Steel (304, 316, 17-4 PH)
Process
CNC Machining
Tolerance
±0.005mm
Lead Time
3-7 days
MOQ
1 piece
Surface Finish
Polished, Passivated, Bead Blasted
Sinbo Precision offers comprehensive custom stainless steel machining services with state-of-the-art CNC equipment. Our expertise spans all major stainless steel grades including 304, 316, 17-4 PH, 303, and 416, enabling us to deliver precision components for diverse industrial applications. With years of experience in stainless steel machining, we understand the unique challenges and requirements of working with this versatile material.
Our advanced CNC machining capabilities include 3-axis, 4-axis, and 5-axis milling, as well as precision turning operations. We maintain tight tolerances of ±0.005mm and offer a wide range of surface finishes including polished, passivated, bead blasted, and electropolished options. Our engineering team provides expert design for manufacturing (DFM) support to optimize your parts for production efficiency and cost-effectiveness.
We serve industries ranging from aerospace and automotive to medical devices and food processing equipment. Our USA warehouse ensures fast delivery with typical lead times of 3-7 days. Whether you need prototype quantities or high-volume production runs, we deliver consistent quality with ISO 9001, IATF 16949, and ISO 14001 certified processes.
| Material Grades | 304, 316, 17-4 PH, 303, 416, 420, 440C Stainless Steel |
| Process | CNC Milling, CNC Turning, 5-Axis Machining, Swiss Turning |
| Tolerance | ±0.005mm (±0.0002") |
| Surface Finish | Polished (Ra 0.8), Passivated, Bead Blasted, Electropolished |
| Size Range | Up to 500mm x 500mm x 500mm (19.7" x 19.7" x 19.7") |
| Lead Time | 3-7 days (standard), 24-48 hours (express) |
| MOQ | 1 piece (prototypes), 100 pieces (production) |
| Certifications | ISO 9001, IATF 16949, ISO 14001, SA 8000 |
Excellent corrosion resistance and formability. Ideal for food processing, medical devices, and general industrial applications.
Superior corrosion resistance, especially against chlorides. Perfect for marine, chemical processing, and pharmaceutical industries.
Precipitation hardening stainless steel with exceptional strength and hardness. Used in aerospace, automotive, and oil & gas applications.
Free-machining stainless steel with excellent machinability. Suitable for high-volume production of complex parts.
Martensitic free-machining stainless steel with high strength. Ideal for valve components, pump parts, and fasteners.
High-carbon martensitic stainless steels with excellent hardness. Used for cutting tools, bearings, and surgical instruments.
Aircraft components, engine parts, structural brackets, and fasteners requiring high strength and corrosion resistance
Engine components, transmission parts, exhaust systems, and precision fasteners for automotive applications
Surgical instruments, implantable devices, diagnostic equipment, and medical device components
Food processing equipment, beverage components, sanitary fittings, and packaging machinery parts
Valves, pumps, reactor components, and piping systems for chemical and pharmaceutical industries
Marine hardware, boat fittings, propulsion components, and offshore equipment parts
CNC Machines
Precision Tolerance
Fast Delivery
Years Experience
ISO 9001:2015
IATF 16949:2016
ISO 14001:2015
SA 8000:2014
We accept orders from 1 piece for prototypes and small batches. For production runs, our typical MOQ is 100 pieces, but we can accommodate lower quantities depending on complexity and requirements.
Standard lead time is 3-7 days for most orders. We also offer express service with 24-48 hour turnaround for urgent projects. Lead times may vary based on part complexity, quantity, and current production schedule.
We accept STEP, IGES, STL, DXF, DWG, and PDF files. 3D CAD files in STEP or IGES format are preferred for complex parts. 2D drawings in DXF, DWG, or PDF format are acceptable for simpler components.
Yes, our engineering team provides free DFM analysis and suggestions to optimize your design for manufacturing. We review your design for manufacturability, cost-effectiveness, and performance requirements before production begins.
We offer various surface finishes including polished (Ra 0.8 or better), passivated for enhanced corrosion resistance, bead blasted for matte finish, and electropolished for ultra-clean surfaces. We can also provide custom finishes based on your specific requirements.
Marine-grade stainless steel for harsh environments
Learn More →
Get a free quote within 24 hours. No minimum order quantity required.