Our custom cast iron centrifugal pump casings are engineered for industrial pumping systems to deliver stable hydraulic performance and extended service life. The volute adopts heavy-duty cast construction with precision-machined mating faces and reinforced mounting sections, delivering smooth operation under harsh working conditions.

Widely applied to water pumps, slurry pumps, mining pumps, dredge pumps, chemical process pumps and other heavy-duty fluid transfer equipment. Material options include gray cast iron, ductile iron, stainless steel and custom alloys to fit diverse working media.

We supply rough cast blanks and fully CNC-machined finished parts. All pump housings are manufactured strictly based on customer drawings or samples, with full dimensional inspection and strict QC implemented during production.

UNNA Metal provides OEM pump castings and machined pump components for industrial manufacturers across the globe, covering prototype trial production and mass manufacturing.