About Longchao
Jinan Longchao Petroleum Machinery Co., Ltd is a company in Jinan, Shandong, China, with main supply of mud pump liners and package solution of mud pump fluid end. With more than 30 years dedication of liner manufacturing, we have successfully delivered more than one million pieces of different kinds of premium quality pump liners. LONGCHAO are number one mud pump liner production factory in China for more than 30 years.
Our mud pump liner can be interchangeable with OEM pumps. Incl. Gardner Denver, National, Oilwell, IDECO, EMSCO, BOMCO, Russian Pump. with support of our business partners and clients, our products are widely accepted by tier one drilling contractors from both China and overseas. Now our mud pump liners were delivered to every oilfield in the world, including America, Canada, Russia, India, West Europe, East Europe, Saudi, Oman, Irag, Indonesia etc.
With our slogan, focusing mud pump liner, without change for 30 years, we are growing to be the world number one production factory. We are looking forward to cooperate with you, our team will provide the best service and the best quality products.

Driven by Quality, Guided by Integrity — Setting New Standards for the Mud Pump Industry.

LONGCHAO was established in Jinan, Shandong, with a focus on oilfield equipment component machining.

Successfully developed liners compatible with major brands like Gardner Denver and National.

Entered international markets in the Middle East, Russia, and North America. Export volume grew 10x within 3 years.

Reached a major milestone with over 1 million mud pump liners delivered worldwide and 2 advanced production lines.
GLOBAL RELIABILITY , BUILT THROUGH EXPERIENCE.
With over three decades of dedication, our company has become a trusted name in high-performance liner manufacturing. From precision engineering to world-class production, we deliver excellence at every step. Our commitment: Zero compromise on quality.
PACKAGE AND DELIVERY
We provide professional packaging and reliable delivery solutions to ensure your products arrive safely and on time. From factory to destination, every shipment is handled with care, using protective materials and reinforced pallets to prevent damage during transit.
Whether by sea or land, our logistics team works with trusted carriers to guarantee efficient customs clearance and smooth last-mile delivery.







Reliable Global Shipping
- Each order is securely packed based on product type and shipping method to minimize damage risks.
- We work with trusted freight partners to offer both standard and expedited options, ensuring on-time arrival across global destinations.
- From factory floor to your warehouse—we handle the full shipping process, including customs clearance.
FACTORY PHOTOS













Certified Excellence in Quality and Safety
Longchao Petroleum Machinery is proud to be ISO 9001 and ISO 45001 certified, ensuring strict compliance with international quality management and occupational health & safety standards. Our certifications guarantee superior product performance and outstanding operational integrity.