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About Our Foundry
Zibo Geluobao Precision Casting Co., Ltd. is a specialized stainless steel investment casting foundry located in Boshan Economic Development Zone, Zibo City, Shandong Province, China — the heart of China's casting and pump industry base. We focus exclusively on stainless steel and high-alloy steel precision castings, serving global buyers in the pump, valve, oil & gas, chemical processing, marine, and industrial equipment sectors.
Unlike generalist foundries that spread across dozens of material types, our specialization in corrosion-resistant and high-performance alloys means deeper process expertise, better quality consistency, and faster response times for your stainless steel casting requirements.
What We Do Best
- Stainless Steel Castings — CF8/CF8M, 304, 316, 316L, 317, 904L
- Duplex & Super Duplex — 2205, 2507 (UNS S32750), Zeron 100
- Precipitation Hardening — 17-4PH, 15-5PH
- Heat-Resistant Alloys — HK40, HH, HP-Nb, Incoloy series
- Nickel-Based Alloys — Monel, Hastelloy, Inconel grades
What Sets Us Apart
- No mold required — Lost foam / lost wax eliminates tooling costs
- Small batch friendly — No minimum order, 1 piece accepted
- Rapid lead time — First samples in 2–4 weeks
- Complex geometry — Thin walls, internal passages, near-net-shape
- In-house machining — CNC + MC reduces handling time
Certifications & Compliance
Industries We Serve
Our stainless steel investment castings are trusted by OEMs and engineering companies across demanding sectors where corrosion resistance, pressure integrity, and dimensional precision are non-negotiable.
Pump Parts: Centrifugal pump bodies, multistage pump casings, vacuum pump housings, chemical pump volutes, slurry pump liners, submersible pump components, double suction pump bodies, mixed flow pump impellers, API pump parts
Valve Parts: Gate valve bodies, globe valve bodies, ball valve bodies, butterfly valve discs, check valve internals, safety valve components, control valve trim
Industrial Components: Roots blower rotors, bearing housings, flanges, pipe fittings, mechanical seal glands, marine hardware, custom engineered castings
Production Capacity & Capabilities
| Annual Output | 1000+ tons of stainless steel & high-alloy precision castings per year |
| Melting Equipment | 5-ton medium-frequency induction furnace — enables single pours up to 3,000 kg |
| Casting Weight Range | 0.5 kg – 3,000 kg (typical IC range: 0.2–80 kg; large-format lost foam: up to 3 tons) |
| Material Focus | Stainless Steel (304/316/316L) Duplex (2205/2507) Super Duplex 17-4PH Heat-Resistant (HK/HH/HP) Nickel Alloys |
| Min Order Quantity | No minimum — Prototype, small batch, and volume production all accepted |
| Lead Time (First Article) | 2–4 weeks from approved drawing/sample |
| Volume Capacity | 10,000+ pieces/month for standard pump & valve components |
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