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 — delivering fully integrated in-house manufacturing from blank → heat treatment → machining → welding → inspection → surface treatment.
We serve design, sourcing and quality teams in industries that cannot compromise on corrosion resistance, pressure integrity or dimensional consistency.
Company Profile
| Item | Detail |
|---|---|
| Full Company Name | Jiangsu Sumpro Machinery Technology Co., Ltd. |
| Founded | __ |
| Registered Capital | __ |
| Registered Address | No.1 Hetang Road, Jiang'an Town, Rugao City, Jiangsu Province, China |
| Plant Area | __ |
| Employees | __ |
| Main Business | Casting, welding, forging and precision CNC machining of special-alloy components |
| Certification | __ |
Core Capabilities
| Capability | Details |
|---|---|
| Investment Casting | Max single-piece weight __ |
| Sand Casting | Max single-piece weight __ |
| CNC Finish Machining | __ CNC machines, accuracy __ |
| Welding | GMAW / GTAW / laser welding / vacuum brazing — stainless-steel structural parts |
| Forging | __ |
| Material Coverage | Stainless steel (304 / 316 / 904L / Alloy 20 / 2520 / 2635), duplex stainless steel, nickel-based alloys, titanium alloys |
| Annual Capacity | __ |
See the full technical capability page for process routes and tolerance scope.
Equipment & Facilities
Our own plants cover the full process chain, so quality and delivery stay under our control instead of being split across trading intermediaries.
- Casting lines: __
- Machining equipment: __
- Inspection equipment: __ (dimensional / NDT)
- Surface treatment: __
Equipment details are maintained on the equipment list page.
Quality & Certifications
| Item | Detail |
|---|---|
| Quality System | __ |
| Certifications | __ |
| Inspection | Dimensional verification, PT / RT / UT non-destructive testing, and material traceability bound to heat/batch numbers |
| Traceability | Inspection records are tied to heat and batch numbers, supporting full traceability |
See quality control and certifications for the underlying system documents.
Why Choose Sumpro
- Own factory — quality and delivery under our control, not a trading intermediary.
- Fully integrated manufacturing — fewer outsourced steps, lower quality risk.
- Multi-process freedom — casting, welding, forging or pure machining; we choose the optimal route for your drawing instead of forcing one process.
- Broad material system — stainless steel, duplex stainless steel, nickel-based alloys and titanium alloys, including 904L and Alloy 20.
- Structural welding capability for large component assemblies.
Industry Solutions
| Industry | Applications |
|---|---|
| Petrochemical | High-temperature, high-pressure, H₂S-resistant special-alloy pump & valve components |
| 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 | Pump bodies, valve bodies, impellers and fluid components; core component supply for complete fluid-equipment packages |
| Marine Engineering | Seawater-resistant and non-magnetic components for subsea and offshore equipment |
Representative builds are documented in project references; product families are listed under products.
Need Special-Alloy Components?
Send us your drawing or sample — casting, welding, forging or pure machining, we will recommend the most suitable manufacturing route and come back with a process assessment.
📞 Phone / WhatsApp: +86 189 2168 2372 📧 Email: 240218099@qq.com