Unbt Series Mud Pump Liner Cylinder Liner

premium liners combine the strength of a forged steel outer shell with the abrasion and corrosion reisistance of a high chromium iron inner sleeve. The liners feature a centrifugally cast high chrome iron sleeve which is machined and heat treated to a minmum uniform bore hardness of HRC62.
The inner surface of the liners with a mirror-like smooth finish and the inner holes' dimension tolerance is strictly controlled to ensure a long using life of more than 800 hours.

We can supply 

BOMCO/Emsco Mud Pumps: F-1300, F-1600, FB1300, FB1600, F-800, F-1000, F-500, F-350, dB-550, DA-700, FA-1600/1300, FC-2200, D-300/500, D-375, D-700,

Ideco Mud Pumps: T-500, T-800, T-1000, T-1300, T-1600,

National Mud Pumps: 7P50, 8P80, 9P100, 10P130, 12P160, N1300, C-250, K-700, 14-P-220, E-700/G-1000, K-500, K-380, K-500A/700A, C-250/350, JWS-400,

Gardner Denver Mud Pumps: PZ7, PZ8/9, PZ10/11, FK-FXK, FY-FXD, FD-FXX, FG-GXG, FG-FXG, KG-KXG, FQ-FXQ, FF-FXF, FF-FXP,

Oilwell Mud Pumps: A-560/600-PT, A-850-PT/A-1100-PT, A-1700-PT/A-1400-PT

Wirth Mud Pump: TPK1000, TPK1600, TPK 2000

Russian Pumps: UNBT-950, UNB-600, 8T-650 and so on
Ellis Williams: E-447, E-2200

And other brand spare parts for WIRTH, OPI, Ellis Williams, Wilson, Gaso, Skytop/Brewster.

Bimetal Liners
The b-metal liner is composed of two layers and fixed tightly. The outer sleeve is forged steel with abrasion resistance, it adapts the technology of centrigugal forging;  the inner sleeve is high chromium iron with wear&corrosion resistance, after heat treatment, the hardness of it can reach to a lever of 62 RC.
The bimetal liners produced by us strictly control the tolerance, assure the easy installation, inner sleeve is highly polished with abrasion&corrosive resistance, can used in various bad working environment with longer service life. 
Liner Outer Sleeve: 45#forged steel, tensile strength is σb>610MPa, yield strength is σs>450MPa, ,elongation hardness is §>17%,hardness is HRC180-200
Liner Inner Sleeve: high chromium cast iron (centrifugal forged). Annealing hardness is HRC≤40. Quenching hardness is HRC59-67
Chemical Composition:C 2.8%-3.1%  Cr 26%-28%  Si 0.6%-0.9%  Mn 0.5%-1% Mo 0.5%-0.8% S , P <0.05%;

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