• Jinan Longchao Petroleum Machinery Co.,Ltd.


Bi-Metal Liner Bi-metal liner is the main expendable parts of mud pump fluid end. They are combined with outer hull and
Mud pump piston assembly is the important spare parts and expendable parts of oil drilling mud pumps. We can offer a ful
Feature: Types: full open, three web, four web Size: API4#,5#,6#,7#,8# Material: solid forged by high quality al
Ourfluid endmodulesare completely interchangeable with the OEM, such as National, Emsco, Gardner Denver, Bomco, Ideco, O
Fluid end module accessories offer full lines of cylinder heads, valve lock covers, cylinder head threaded rings, cylind
Thepiston rods,pony rods(extension rods) and clampsare made of premium quality, heat treated alloy steel 40Cr. The surfa
We can supplycrosshead, crosshead pinand crosshead slide(guide)for most of the mud pump models. All our crosshead produc
We offer the air bladder from 10 gallon to 20 gallon capacities, K-10, K-20, KB-45, KB-75, PD-45, PD-55. They are interc

LONGCHAO is the leading manufacturer specialized in bi-metal liners for over 30 years in China. Our professional team works to supply the most cost-effective liners on the market.

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About Us

Jinan Longchao Petroleum Machinery Co.,Ltd. was founded in 1988, located in Zhangqiu District, Jinan City. It covers an area of 50000 square meters and has nearly 200 staff.

LONGCHAO is the leading manufacturer for mud pump fluid end parts, from forging, casting, heat treatment, machining, painting, package, all the processing is done by ourselves, so we can control the quality of each process for our customers.

Main Products: bi-metal liner, zirconia ceramic liner and piston

Bi-metal liner: the leading manufacturer in China with high quality and competitive price;

The service life is more than 1000 hours.

Annual Production Capacity: more than 30000 pcs


Why Choose Us

All the processing is done by ourselves to guarantee the quality.
import insturment AMETEK to ensure high chromium content 26%~28%
High finish of inner sleeve, can reach Ra0.05, higher than API standard.
The service life: bi-metal liner1000 hours; zirconia ceramic liner4000 hours.

Our Latest News

Process Flow and Installation of Mud Pump Liner

The increasing availability of productivity how all this mistaken idea of denouncing pleasure and praising pain was born ...

Operation Caution of Mud Pump Fluid End Parts

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Wear Analysis of Fluid End Expendables

The increasing availability of ...
  • +86-531-83682699

  • mudpumpparts@outlook.com
  • Zhangqiu District, Jinan City
    Shandong Province, China.