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Product series

Aluminium castings for engines, drivetrains and electric vehicles.

Six series, four casting processes, one in-house chain from mould design to machined part.

01 / 06

Engine cylinder heads

Ruiming began as a cylinder-head factory in 1995 and the cylinder head is still its flagship. The company states that one in five passenger cars in China runs on a Ruiming cylinder head, with a comprehensive external scrap rate of about three per thousand.

  • Gravity casting
  • Low-pressure casting
  • Rough or finish machined
  • Nissan qualified (2025)
Request a quote for cylinder heads →
02 / 06

Engine cylinder blocks

Aluminium cylinder blocks for passenger-car engines. Ruiming's second Wenzhou plant opened in 2003 to develop aluminium blocks and manifolds; blocks are also produced in the die-casting plant.

  • High-pressure die casting
  • 3 & 4-cylinder
  • Since 2003
Request a quote for cylinder blocks →
03 / 06

Pump housings

Aluminium water-pump shells and pump housings for engine cooling and lubrication circuits, cast and machined in-house.

  • Aluminium alloy
  • Engine cooling
  • Cast & machined in-house
Request a quote for pump housings →
04 / 06

Transmission housings

Lightweight aluminium transmission and gearbox housings — part of Ruiming's push beyond the engine into the full powertrain.

  • High-pressure die casting
  • Lightweight
  • Up to 3500T cells
Request a quote for transmission housings →
05 / 06

NEV three-electric housings

Housings for the battery, motor and electronic-control system of new-energy vehicles. Ruiming's new-energy project started production in 2017 and has supplied NEV hybrids in batches since 2021.

  • Motor housings
  • E-control housings
  • Battery housings
  • Since 2017
Request a quote for NEV housings →
06 / 06

Automotive parts

Engine covers, oil pans, brackets and other structural aluminium castings, produced in the die-casting plant.

  • Oil pans
  • Covers
  • Brackets
Request a quote for automotive parts →
Capacity

Built for programme volumes.

Figures published by Ruiming for its foundry, die-casting and equipment plants.

Foundry (total)5.578 million pcs/yr
Gravity 5.376 M · low-pressure 202,000
Cylinder heads984,000 finished + 3.14 M rough-machined per year
Die-casting20,000 t/yr on 40+ cells of 3500T / 2500T / 1650T and 280T–1250T machines
Coated sand63,000 t/yr renewable coated-sand capacity
Tooling300 moulds · 600 fixtures · 80 special machines per year
R&DTrial-production centre with about 40 machining centres; casting-process analysis and mould design in-house
Product FAQ

Before you send the drawing.

More answers on the home page FAQ.

Are parts supplied as raw castings or machined?

Both. Ruiming's foundry figures include 984,000 finished cylinder heads and 3.14 million rough-machined cylinder heads per year, and the group runs its own machining plant.

Which process is used for NEV housings?

New-energy transmission cases, motor and electronic-control housings are produced in Ruiming's die-casting plant on cells of up to 3500T.

Does Ruiming build its own moulds?

Yes. The equipment plant designs and builds core-box, gravity, low-pressure and high-pressure moulds (about 300 sets per year), fixtures (600 sets per year) and non-standard equipment (80 units per year).

How do I request a quotation?

Email your drawing, material and annual volume to shichangbu@chinarm.com or call the marketing department on +86 577 6536 6996.

Have a new aluminium part in development? Send the drawing.

Request a quotation →