C93800 bronze bushing, China copper bush manufacturer

Our heavy‑duty bronze bushings are manufactured by centrifugal casting, followed by precision CNC machining.

We adopt high‑grade bronze alloys including tin bronze, aluminum bronze and leaded bronze. Centrifugal casting delivers dense, uniform and pore‑free microstructure, greatly improving wear resistance and load‑bearing capacity.

After casting, the bushes go through turning, boring, grooving and drilling to achieve precise dimensions, customized oil grooves and lubrication holes as requested.

We support custom drawings, special sizes and material grades. Send us your specifications for quotation.

Bronze Castings

Description

Baoding Guokun can supply you different bronze bushes, bushings in various sizes, standard and custom bronze bushings, bronze bushing, flanged bronze bushing, flanged cast bronze bushing, China bronze bushing, bronze liner, bronze slide, bronze nut, bronze worm gear, tin bronze bushing, bronze split bearing, straight bronze bushing, flanged bushings, flanged bronze bushing, oil groove bronze bushing, eccentric bronze bushing, eccentric bronze sleeve, graphite bronze bushing, tapered bronze bushings, single cylinder hydraulic cone crusher series bronze parts, bronze nut, bronze wind wheel, bronze worm gear, bronze slide plate and other related bronze bushing products to our worldwide customers, such as UK, USA, Germany, Australia, Cananda, UAE, Russia, etc.

China centrifugal casting bronze bushing factory

Bronze Bushing / Copper Bush

Our heavy‑duty bronze bushings are manufactured by centrifugal casting, followed by precision CNC machining.

After casting, the bushes go through turning, boring, grooving and drilling to achieve precise dimensions, customized oil grooves and lubrication holes as requested.

These large‑size copper sleeves serve as sliding bearing parts widely used in mining crushers, rolling mills, hydraulic machinery, injection molding machines and heavy engineering equipment. They perform excellently under heavy load, low speed and continuous friction working conditions.

We support custom drawings, special sizes and material grades. Send us your specifications for quotation.

What is centrifugal casting process?

Centrifugal casting is a metal casting process where molten metal is poured into a rapidly rotating mold, causing centrifugal force to distribute the metal evenly against the mold’s inner surface, resulting in a dense, defect-free casting products, typically used to produce axi-symmetric parts with consistent all thickness, like cylinder, bushing, rings, pipes, which will be widely used for aerospace, marine, power transmission, cone crusher, mining and other industrial applications.

The several steps of centrifugal casting techniques:

Centrifugal casting process
1	Prepare the mold	After producing the metal mold, we need clean the mold’s inner surface to remove debris and contaminants. Apply a cermaic slurry to the inner surface to protect the mold and help remove the casting later.
2	Pour the metal	After heating the metal and spining the mold, we need pour the molten metal into the rotating mold.
3	Cool the metal	Use the rotational motion to help the metal cool and create pressure within the mold.
4	Remove the castings	Stop the rotation and remove the solidifed casting from the mold
5	Post-processing	Sand blasting and CNC machining

Advantages of centrifugal casting process

Enhanced material quality: Centrifugal forces push impurities and gas out of the mold, resulting in a uniform grain structure and eliminating porosity.

Faster production times: Castings are closer to their final shape, so no less machining time than forging process, sand casting process and investment casting parts.

Large bronze bushings: Baoding Guokun can use centrifugal casting process to produce large bronze bushings with diameter from 40mm to 2000mm, weight from 0.1 kg to 5000 kgs.

Disadvantages of centrifugal casting method

Limited to cylindrical shapes: Centrifugal casting is primarily suitable for cylindrical casting products.

Not suitable for alloys with gravity separation: Centrifugal casting is not suitable for alloys that are prone to gravity separation, such as lead-bronze.

Metal information of brass, copper and bronze casting products

Brass (C83300-C87900) are copper alloys in which zinc is the principal alloying addition. Brasses may also contain specified quantities of lead, tin, manganese and silicon. There are five subcategories of cast brasses, including:

Copper-Tin-(Lead)-Zinc Alloys: C83300-C83810 and C84200-C84800, the red and leaded red brasses and semi-red and leaded semi-red brasses, respectively;

Copper-Zinc-(Lead) alloys: C85200-C85800, yellow brasses and leaded yellow brasses

Manganese bronze and leaded manganese bronzes, C86100-C86800, also known as high strength and leaded high strength yellow brasses;

Copper-Silicon alloys: C87300-C87900, which are called silicon brasses, or silicon bronzes if they contain more silicon than zinc.

Our Successful Application Cases & Customer Solutions

Our Successful Application Cases & Customer Solutions
Application	Customer Pain Point	Our Solution	Customer Benefit
Mining Cone & Jaw Crusher	Large bronze bushes often suffer from early failure due to casting porosity under heavy impact and abrasive friction. Frequent replacement causes costly production downtime for quarry and mineral processing plants.	Baoding Guokun adopted centrifugal casting to eliminate internal shrinkage holes and pores. We designed deep cutomized oil grooves and selected high-strength tin bronze. All bronze bushings are 100% finish-machined to strict tolerance.	Bushing service life increased by over 35%. Maintenance frequency and production loss were greatly reduced. We have stable repeat orders from mining equipment buyers in Europe, Australia and Southeast Asia.
Steel Rolling Mill Machinery	Rolling mill bronze sleeves bear extreme radial load and continuous reciprocating friction. Poor lubrication distribution leads to overheating and premature wear.	Custom-machined spiral oil grooves and distributed lubrication holes. Aluminum bronze material with high compressive strength. Centrifugal casting guarantees dense metal structure.	Smooth running at low speed under heavy loads. Less heat build-up. We have become a long-term OEM supplier for steel mill machinery manufacturers.
Heavy‑Duty Hydraulic Press & Construction Machinery	Sliding bearings work under strong vibration and impact load. Ordinary static-cast bronze parts crack or wear rapidly.	Centrifugal cast leaded bronze with excellent anti-friction performance. Strict machining tolerance to guarantee fitting clearance.	Strong vibration resistance and stable operation. Multiple bulk shipments delivered to global construction machinery OEMs.
Large Injection Molding Machine Toggle Joint	Hinge bronze bushes experience periodic impact friction. Quick wear creates machine clearance and affects product molding accuracy.	Precision finished medium size centrifugal copper bushes with uniform lubrication channels. Optimized bronze grade for fatigue and wear resistance.	Machine precision maintained for longer working cycles. Our plastic machinery customers place regular repeated orders.
Marine Deck Winch & Ship Machinery	Marine bronze sleeves face salt water corrosion plus heavy load. Common bronze materials rust and wear quickly in offshore environment.	High grade aluminium bronze with outstanding anti corrosion property. Centrifugal casting plus fine surface finishing.	Long service life under humid and salty marine conditions. Supplied to marine machinery factories.

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.

Pump casting, Valve casting, agricultural casting, aircraft casting, railway casting, road casting, motor casting, mining 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