Aluminium engine castings, poured for the world's automakers.
RUIMING casts cylinder heads, cylinder blocks, pump, transmission and NEV housings — from mould design to machined part, under IATF 16949.
Three decades of aluminium, one specialism.
From the Zhenda Cylinder Head Factory founded in 1995 to a group integrating new-material R&D, 3D printing, mould design, casting and precision machining.
One in five passenger cars in China has an engine cylinder head produced by Ruiming.— Company statement, chinarm.com
Ruiming reports a comprehensive external scrap rate of about three per thousand for cylinder heads. Its customer base spans Chinese independent brands, joint ventures and international automakers — the timeline includes General Motors, Volvo, FCA, VW, Audi and Nissan.
Honours include National Key High-tech Enterprise, National Certified Enterprise Technology Center, National Postdoctoral Research Workstation and the China Patent Excellence Award.
Six series, one material: aluminium.
Engine, drivetrain and new-energy components in aluminium alloy — supplied as castings, rough-machined or finished parts.
Cylinder heads
Ruiming's core product since 1995.
Cylinder blocks
Aluminium blocks for passenger-car engines.
Pump housings
Water-pump and pump shells.
Transmission housings
Lightweight gearbox and transmission cases.
NEV three-electric housings
Battery, motor and e-control housings.
Automotive parts
Brackets, covers, oil pans and more.
The right process for every part.
Mastered through independent R&D and backed by in-house casting-process analysis, mould design and machining.
Gravity casting
5.376 million pieces a year — the backbone of cylinder-head production.
Low-pressure casting
202,000 pieces a year for parts that need dense, sound walls.
High-pressure die casting
40+ intelligent cells of 3500T / 2500T / 1650T plus 280T–1250T machines.
Sand casting
63,000 t/yr renewable coated-sand capacity for complex cores.
Foundry
Cylinder heads from core-making to casting, with an R&D and trial-production centre of about 40 machining centres.
- Capacity
- 5.338M pcs/yr
- Finished heads
- 984,000/yr
Machining
Rough and finish machining so parts leave Ruiming ready for the engine line.
- Rough-machined heads
- 3.14M/yr
Die-casting
Blocks, covers, oil pans and NEV transmission, motor and e-control housings.
- Output
- 20,000 t/yr
- Largest cell
- 3500T
Equipment
Core-box, gravity, low- and high-pressure moulds, hydraulic fixtures, gauges and special machines — built in-house.
- Moulds
- 300 sets/yr
- Fixtures
- 600 sets/yr
Measured before it ships.
Chemistry, mechanics, microstructure, internal soundness and geometry are checked in Ruiming's own lab.
Certified, and audited by global automakers.
IATF 16949:2016 since 2018 (ISO/TS 16949 since 2005), and qualified-supplier audits passed with VW, Audi and Nissan.
AEO Advanced Certified Enterprise
China Customs
Environmental management system
System certificate
Occupational health & safety
System certificate
Intellectual property management
System certificate
From a cylinder-head workshop to a Tier-1 supplier.
"First things first, people first." Ruiming's vision is to build a world-class vehicle parts enterprise.
Zhenda Cylinder Head Factory, predecessor of Ruiming, founded.
RUIMING brand created.
Second Wenzhou plant: aluminium blocks and manifolds.
ISO/TS 16949:2002 certified.
Cooperation with General Motors.
Volvo; National Enterprise Technology Center.
FCA; National Smart Workshop project.
New-energy project in operation.
IATF 16949:2016; Liuzhou die-casting plant.
Qualified supplier after VW and Audi audits.
Batch supply for NEV hybrids.
Qualified Nissan cylinder-head supplier.
Questions we hear from sourcing teams.
Short answers based on Ruiming's published information. Send your drawing for anything specific.
What does Ruiming manufacture?
Aluminium-alloy castings for vehicles: engine cylinder heads, cylinder blocks, pump housings, transmission housings, new-energy three-electric (battery, motor, e-control) housings and other automotive parts.
Which casting processes does Ruiming use?
Four processes: gravity casting, low-pressure casting, high-pressure die casting and sand casting, supported by in-house mould design, casting-process analysis and machining.
What certifications does Ruiming hold?
IATF 16949:2016 (since 2018; ISO/TS 16949 since 2005), AEO Advanced Certified Enterprise, plus environmental, occupational health and safety and intellectual property management system certificates.
What is Ruiming's production capacity?
The foundry casts about 5.578 million pieces per year (5.376 million by gravity casting, 202,000 by low-pressure casting). The die-casting plant produces about 20,000 tonnes of aluminium die-castings per year on 40+ cells up to 3500T.
Which automakers has Ruiming supplied?
Ruiming's history includes cooperation with General Motors (2008), Volvo (2012) and FCA (2016); it passed VW and Audi audits in 2019 and became a qualified Nissan cylinder-head supplier in 2025.
Can Ruiming develop a new casting to my drawing?
Yes. Ruiming's technology centre covers casting-process analysis, mould design, fixture and non-standard design and product development, and its equipment plant builds about 300 sets of moulds per year.
How does Ruiming control quality?
In-house laboratory with SPECTRO spectrometer, Zwick tensile tester, Olympus microscope, X-ray inspection, LEITZ scanning CMM, thermal and cleanliness labs and a 3D scanner. Ruiming reports a cylinder-head external scrap rate of about three per thousand.
Where is Ruiming located and how do I send an inquiry?
Headquarters: No. 188, Shuguang 1st Road, Tangxia Town, Ruian, Zhejiang, China. Marketing department: +86 577 6536 6996, shichangbu@chinarm.com — or use the form below.
Send us your drawing.
Tell us the part, annual volume and target process. Ruiming's marketing department replies by phone or email.
- Marketing+86 577 6536 6996
- Switchboard+86 577 6532 9999
- Emailshichangbu@chinarm.com
- AddressNo. 188, Shuguang 1st Road, Tangxia Town, Ruian, Zhejiang, China