Company Profile


Zhongyuan Cylinder Liner Company Limited GKNZ,  is a leading manufacturer of Cylinder Liners for global automotive and engine industry, which is a joint venture established by GKN Plc and ZYNP Group, under GKN Automotive business section of Dowlais Group .

In 1917, centrifugal casting technology was invented by Mr. FW Stokes and firstly applied scale production of GKN Sheepbridge Ltd in 1922, which has opened up a new era of cylinder liner manufacturing. In 2005, GKN Plc began to make inroads into China, bringing century-long expertise with technological know-how and innovation. In pursuit of vision “Engineering that moves the world”, GKNZ is committed to be the top provider in the market by leverage of lean manufacturing and continuous innovation.

The combination of GKN and ZYNP has provided sophisticated experience of 140 years to the automotive & engine market place. GKNZ possesses superb technologies and rigorous process control on materials and manufacturing, coupled with induction hardening, manganese phosphorus eutectic and gas soft nitriding processing technologies, which makes GKNZ ‘s incomparable strength in a variety of power engine fields. Nowadays, more and more end users are enjoyingthe superior performance of GKNZ cylinder liner products.

Since 2006, millions of GKNZ cylinder liners have been applied in various industries, providing reliable engine systems for commercial vehicles, construction, marines and power stations around the world.

The company has obtained international certifications of:

■ IATF 16949:2016
■ ISO 14001:2015
■ OHSAS 18001:2007
■ CCS Certificate of Works Approval

We consistently deliver on our promise of an unsurpassed quality by stringent QC process and system, securing “zero-defects” delivery to our customers and users. We strictly implementing the IATF16949 quality system and ISO14001 environmental system, and also provide safety and health care to the company's property and personnel in accordance with OSHA regulations, winning a wide range of praise and awards from customers.

As a leading Cylinder Liner provider, we adhere to the concept of “customer focus” by implementing rigorous material selection, process control and digital quality management, and all-day service. Keeping advanced in investment of material & process development, we have full assurance tobe capable of meeting the new requirements and challenges in heavy-duty High-powered engine applications.

Our main business is to provide Cylinder Liners and Anti-polishRings with specifications of Ø90-Ø250mm, which mainly applied in heavy-duty andhigh-powered engines of petrochemical and clean fuels. GKNZ products are fully competent to satisfy the demands of the most stringent emission regulations in different regions of the world. Distributed worldwide, GKNZproducts have been contributing sustainable& reliablepower for global engine industry.

Enterprise culture


GKN gives you six promises

01

Provide you with investment and training support to build a high-performance business through customer service

02

To help you fully tap their potential, never allow any discrimination

03

Provide a safe working environment and give you comprehensive care

04

Do everything possible to minimize the impact on the environment

05

Make a positive contribution to the community as part of society and community

06

If you have any questions, we will listen carefully and take care to protect your privacy.

Your Six Commitments to KKN

01

Work with GKN to build a customer-centric, high-performing business and work hard to deliver on your commitments

02

Always respect the rights of other team members

03

Don't expose other team members to the risk of harm and advise others when they see them working in unsafe ways

04

Always adhere to the integrity and noble conduct

05

Report wrongdoing

06

Participation in environmental protection and community support activities