Aluminum bronze casting components for pumps

Baoding Guokun is located in Baoding city, Hebei province, China. Our sand casting factory occupies a total area of 30,000 square meters, which have casting foundry workshop, grinding, sandblasting and precision machining shop, laboratory and warehouse. Baoding Guokun has equipped with 4 sets medium-frequency electric furnaces, 15 sets automatic shell core machinery, automatic sand casting molding line, 7 sets CNC machinery, 20 sets CNC Lathe, and the complete quality inspection devices for mechanical testing and chemical analysis, including tensile strength, hardness tester, metallographic inspection, spectrometer, ultrasonic testing and special testing devices. Before shipping, the quality reports for all inspection will be issued and mailed to our customers. Please mail your inquiry to gina@guokuncasting.com

Bronze Castings, Pump Castings Tags: Pump Impeller

Description

China Aluminum bronze casting components for pumps manufacturer, supplier and exporter

The pump impeller is the rotating component in the pump that directly transfers the energy from the motor into the fluid being pumped. Pump impellers are classified as one of three types: Open impeller, semi-open impeller, or closed impeller. Their classification is based on whether they have a protective shroud or not.

Impeller type	Details	Application
Closed impeller	The construction of enclosed impellers includes additional back and front walls on both sides of vanes that enhances its strength. The efficiency of closed impellers is higher. But the more complex design leads to higher production costs than open impellers.	They are generally used in large pumps, centrifugal pumps and clear water applications.
Semi-open impeller	The semi-open impeller is very similar in its design to the closed impeller. The one major difference is the absence of the front shroud. The additional back wall, giving it more strength.	The semi-open impellers or semi-closed impellers are usually used with liquids or mixed solid-liquid products. Mainly, they are well suited for medium sized pumps.
Open impeller	An open face impeller doesn’t have a back or front wall, only have blade and blade reinforcement. Without walls making open impellers slightly weaker than closed or semi-closed impellers. The number of open impeller blades is 2~6.	Open impellers are generally operating at higher tip speed and easier to clean and repair. Open impellers are usually used in smaller pumps and pumps that handle suspended solids and less to clog.

Impellers are made from a variety of materials, including stainless steel, cast iron, bronze, aluminum, austenitic stainless steel, titanium, etc. When you choose the suitable material for pump impeller, you should think about the following several factors, strength, fluid compatibility, abrasion resistance, environmental conditions, type of liquid being pumped, casting and machining properties, etc.

Baoding Guokun, an ISO 9001:2008 certificated investment casting and machining factory, can offer you the most suitable material as per your pump’s requirements. And with 25 years casting experience, we can produce the custom pump impellers with the suitable cast metal and casting process.

The main bronze alloys used for pump components are selected based on their corrosion resistance, wear resistance, and mechanical properties. The primary alloys include:

1. Tin Bronzes (Leaded and Non-Leaded) pump components
UNS C93200 (SAE 660) pump impeller: A leaded tin bronze (83-87% Cu, 6-8% Sn, 1-3% Zn, 6-8% Pb) traditionally used for bushings, bearings, and valve components. Its lead content enhances machinability and reduces friction, though environmental regulations are phasing out leaded alloys.
UNS C90500 (Gunmetal) pump components: A non-leaded tin bronze (88% Cu, 10% Sn, 2% Zn) valued for castability and corrosion resistance, commonly used in valves and pump casings.

2. Phosphor Bronze pump housing (e.g., UNS C51000): Contains ~94% Cu, 5% Sn, and 0.2% P. Offers high fatigue resistance and strength, ideal for springs, bearings, and dynamic components in pumps.

3. Aluminum Bronze pump casing (e.g., UNS C95400): Composed of ~85% Cu, 11% Al, 4% Fe, and Ni. Excels in harsh environments (e.g., seawater) due to superior strength and corrosion resistance, often used for impellers and marine pump parts. Aluminium Bronze alloys are available using various casting processes : sand casting, centrifugal casting or continuous casting for smaller fully machined pump components but also using forging when looking very higher mechanical characteristics thus offering opportunities to manufacture various engineered pump components such as : Pump casings ( split pump, centrifugal, volute), Pump Impellers (closed, open, fish freindly), Suction casings or diffusers, Discharge elbows. Riser colums and other customized pump components.

Aluminum bronze sand casting pump impellers

Sand casting: Sand casting process is an industrial metal casting process that involves creating a mold from sand and pouring molten metal into it, generally used to cast the shaped parts of nearly any design, including large parts and those with internal passages. Baoding Guokun can produce various sand cast parts in cast iron, ductile iron, gray iron, low-carbon steel, mild steel, alloy steel for pump, valve, agriculture, railway, road, forklift, tillage, mining, automotive, medical, food, and aircraft, etc

Sand casting process for ductile iron parts

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high-quality carbon steel, cast iron and machined castings used in boiler, furnaces and incinerators. The boiler casting parts we produced are boiler air nozzle, wind cap, moving grate bars, travelling grate bars, fixed grate bars and all other boiler components and furnace castings.

A High Quality China Foundry！

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high quality carbon steel, cast iron and machined castings used in power, mining, railway, agricultural, tillage, truck, automobile, pump, valve, motor, pipe fittings and gear industry.

With a monthly capacity of 10,000kgs and with more than 25 years of experience ensure the short delivery and the highest valued iron & steel casting parts.

China metal casting factory for pump casting and valve casting parts

Pump casting, Valve casting, agricultural casting, aircraft casting, railway casting, road casting, motor casting, mining casting, boiler casting, power generation investment casting, Medical casting, marine industry casting

Baoding Guokun Machinery Co., Ltd.

Baoding Guokun Export and Import Trading Co., Ltd

Office Add: 777# Chaoyang South Street, Baoding City, Hebei, 071000, China

Factory Address: Wangdu County, Baoding City, Hebei, 071000, China

Website: www.metalcastingfactory.com

Tel: 86-312-5951319 Fax: 86-312-5951296

Phone: 86-181 3278 9710 (WhatsApp & WeChat)

Email: gina@guokuncasting.com

gina.guokun@gmail.com