Casting Range
Most steel casting parts can be produced to customer drawings within the 5 kg to 13 t weight range.
Yongjia Gongli Technology
Steel castings for valvesand industrial equipment
Founded in 2005, Gongli integrates resin sand casting, investment casting, heat treatment and full-process inspection for pump, valve, energy, offshore and industrial equipment sectors.
2005Founded
8,000 tAnnual capacity
5 kg-13 tCasting range
175Employees
Capability
Stable delivery for complex steel castings
Gongli manufactures cast components from 5 kg to 13 tons in carbon steel, stainless steel, duplex stainless steel and other engineering alloys.
Material Scope
Key materials include carbon steel, stainless steel, duplex stainless steel and selected alloy grades.
Traceability
Spectrometric analysis, mechanical testing, metallography, sand testing and NDT support traceable quality control.
Certifications
Certification basis includes ISO, CE, ABS and NORSOK M-650.
Products
Steel castings from 5 kg to 13 tons
Gongli is not limited to one product type. Castings can be produced to drawings for valves, pumps, industrial equipment and custom applications.
Valve Castings
Valve Steel Castings
Valve bodies, bonnets, discs and pressure-retaining parts for gate, butterfly, ball, check and globe valves.
Pump and Valve Systems
Pump Castings
Custom pump casings, impellers, covers and related cast parts for process, feedwater and seawater pump applications.
Investment Casting
Investment Castings
Investment castings produced on an automated overhead-chain line for small and complex components.
Equipment
Melting, heat treatment and testingfor reliable delivery
Gongli supports 5 kg to 13 t steel castings with equipment covering pattern making, sand mixing, melting, heat treatment and inspection.
4 melting furnaces
Maximum furnace capacity reaches 10 tons, supporting steel castings below 13 tons.
3 heat treatment resistance furnaces
Maximum capacity reaches 40 tons, with a 6×5×5 m circulating water tank for annealing, normalizing, tempering and quenching.
Continuous sand mixers
Two continuous sand mixers support resin sand molding, with used sand recycling above 90%.
Automated investment casting line
An overhead-chain precision casting line for stainless steel, alloy steel, carbon steel, high-temperature alloy and non-ferrous alloy parts.
Testing equipment
German SPECTRO spectrometer, tensile tester, impact tester, metallurgical analyzer and sand strength tester support quality control.
Process
A controlled process from drawing to delivery
ProCAST casting simulation is used to optimize feeding and solidification before production. Melt chemistry is verified on site and pouring is controlled by defined temperature and time windows.
01 Drawing Review
02 Casting Simulation
03 Pattern Making
04 Molding & Core Making
05 Melting & Pouring
06 Heat Treatment
07 NDT Inspection
08 Packing & Shipment
Certificates
Certifications make capability verifiable
Gongli maintains ISO, CE, ABS and NORSOK M-650 certification basis and can provide quality documents according to project requirements.
ISO 9001
Quality management system
ISO 14001
Environmental management system
ISO 45001
Occupational health and safety management system
NORSOK M-650
Material qualification
Partners
Serving equipment manufacturersin China and overseas
Gongli serves pump and valve systems, automotive components, nuclear power, petroleum equipment, deep-sea engineering and aerospace applications. Customers and partners include Komatsu Japan, Hyundai and Samsung Korea, Jiangnan Valve, Huaxia Valve, Dongfang Turbine, Bethel, Fangzheng Valve, Shentong Valve and Chengdu Hangli Valve.
Contact
Share your drawings.We will shape the casting plan.
We align material, weight, inspection and delivery requirements first, then propose a practical casting route and quotation.
Contact Gongli