About Sumpro
Jiangsu Sumpro Machinery Technology Co., Ltd. (Sumpro) is a special-alloy components manufacturer built on our own casting and machining plants. Starting from investment casting and sand casting, we have expanded to stainless-steel structural welding, precision finish machining and surface treatment — achieving fully integrated in-house manufacturing from blank → heat treatment → machining → welding → inspection → surface treatment.
Core Capabilities
| Capability | Details |
|---|---|
| Investment Casting | Max single-piece weight 500 kg |
| Sand Casting | Max single-piece weight 3 t (structures up to 5 t+) |
| CNC Finish Machining | 20+ CNC machines, accuracy ±0.01 mm |
| Welding | GMAW / GTAW / laser welding / vacuum brazing — stainless-steel structural parts |
| Material Coverage | Stainless steel (304/316/904L/Alloy 20/2520/2635), duplex stainless steel, nickel-based alloys, titanium alloys |
Company Profile
| Item | Detail |
|---|---|
| Full Company Name | Jiangsu Sumpro Machinery Technology Co., Ltd. |
| Registered Address | No.1 Hetang Road, Jiang'an Town, Rugao City, Jiangsu Province, China |
| Registered Capital | RMB 10 million |
| Founded | March 2017 |
| Certification | ISO 9001:2015 |
Why Choose Sumpro
- Own factory — quality and delivery under our control, not a trading intermediary
- Fully integrated manufacturing — fewer outsourced steps, lower quality risk
- 20+ CNC machines at ±0.01 mm for demanding tolerance requirements
- Broad material system including 904L, Alloy 20 and other special grades
- Structural welding capability for large component assemblies
Industry Solutions
| Industry | Applications |
|---|---|
| Petrochemical | High-temperature, high-pressure, H₂S-resistant special-alloy pump & valve components |
| Aerospace | High-performance precision cast & forged parts in titanium, Inconel 625, etc. |
| Energy & Power | Pump & valve components for thermal, nuclear, wind and CSP plants |
| Coal Chemical | Wear-, heat- and corrosion-resistant alloy components |
| Fine Chemical | 904L / duplex / nickel-based parts resistant to strong acids & alkalis |
| Fluid Equipment | Full range of pump bodies, valve bodies, impellers and fluid components |
| Fluid Equipment Systems | Core component supply for complete fluid-equipment packages |
Need Special-Alloy Components?
Investment casting up to 500 kg · Sand casting up to 3 t+ · 20+ CNC machines · ISO 9001:2015 · Build-to-print · Single pieces and small batches accepted