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bronze closed type centrifugal pump impeller
LIYUAN has over 30 years of experience designing and manufacturing high quality copper and its alloys investment & sand castings.
LIYUAN’ capabilities offer our customers the flexibility to design and manufacture components that meet their exact requirements, from simple to complex shapes. Our high quality copper and its alloys castings can be manufactured with a variety of surface finishes, dimensional precision, finish allowances and draft.

Our copper castings are used in many applications domestically,commercially,industrially,such as for Areospace,Military,Medical,Railway,Shipbuilding,Auto parts,Welding machine,Pump&Valve,Electric power,Electronic parts,Non-sparking tools,etc.
We specialize in high-quality custom precision investment castings from copper,brass and bronze.
Advantages of our copper castings,
---High quality
---High pressure
---High precision
---High strength
---High conductivity
---High preformance
---Superior tolerances
---No seams and no lines
---High manufacturing difficulty
---Excellent surface finishes
---Advanced precision investment casting (Silica sol technology)
Specifications of investment casting part with OEM Service:
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brass alloys,bronze alloys,copper |
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Standard |
DIN, ASTM, BS, JIS etc. |
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Certificate |
ISO 9001:2008 |
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Services |
Casting, Machining, Surface Treatment, Packing |
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Weight range |
0.2--1500KG( Max. unit weight) |
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Size and design |
As the customer's drawings and requirements. samples accepted. the mold from customer is acceptable. |
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Drawings |
Pro/E, auto CAD, UG, CAD, PDF and ADSTEFAN (Advanced Solidification Technology for Foundry Aided by Numerical simulation) for flow analysis |
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Manufacturing process |
Precision investment casting,Lost wax casting,sand casting |
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Testing instruments |
SparkCCD 6000 spectrometer,Brinell,Rockwell and Vickers optical hardness tester,Universal testing machine |
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Equipments |
CNC Machining Center, Boring Machine, Milling Machine, Lathe, And Radial Drilling Machine |
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Surface treatment |
Deburring,shot blasting,sand blasting,grinding,passivation,painting,polishing,heat treatment, galvanization,etc |
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Packing
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Bubble bag+Carton+Wooden pallet |
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As customers' requirements |
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Transportation |
Ocean Shipping, By air, Express ( DHL, Fedex, UPS, TNT, EMS) |
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Inspection
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Foundry in-house |
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Third Party inspection available upon customers requirements |
Certificate



The experience gained from its long tradition in casting copper and alloys makes LIYUAN the specialist for especially demanding and durable products.LIYUAN is there for you with its expertise gained from about 30 years of non-ferrous metal foundry technology.


Standard export packing with company logo and informations for copper casting parts.
And custom made is also ok if customer need.

New products from manufacturers at wholesale prices