Cast Iron Auto Rocker Arm
  • Cast Iron Auto Rocker Arm - 0 Cast Iron Auto Rocker Arm - 0
  • Cast Iron Auto Rocker Arm - 1 Cast Iron Auto Rocker Arm - 1
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Cast Iron Auto Rocker Arm

Ningbo Supreme Machinery Co., Ltd is a professional  gray iron and ductile Iron casting manufacturer and supplier in China. 
  We are able to produce Cast Iron Auto Rocker Arm, Auto Steering Knuckles  and other diverse parts  such as Gears, Connecting Rod, Crank Shaft ,Universal Joint, Ball Joint ,Yoke, Transmission Shaft etc. 

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Product Description

Cast iron auto rocker arm (in the context of an internal combustion engine of automotive, marine, motorcycle and reciprocating aviation types) is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it. One end is raised and lowered by a rotating lobe of the camshaft (either directly or via a tappet (lifter) and pushrod) while the other end acts on the valve stem. When the camshaft lobe raises the outside of the arm, the inside presses down on the valve stem, opening the valve. When the outside of the arm is permitted to return due to the camshafts rotation, the inside rises, allowing the valve spring to close the valve.

This Cast Iron Car Rocker Arm part is made of grey cast iron HT250 material, with BH160-22 Brinell hardness, useing automatic molding casting to make sand module – green sand casting/clay sand casting.

Casting Type

Gray Iron Casting

Production Process

Sand Casting / Clay Sand Casting / Green Sand Casting/ Resin Sand Casting

Casting Manufacturer

Supreme Machinery Co.,Ltd

Quality Control

Spectrum Analyzer, Three-Coordinate Detector, Metallographic Analyzer, Tensile Testing Machinery


ASTM A48, ISO 185, DIN 1691, EN 1561, JIS G5501, UNI 5007, NF A32-101, BS 1452, IS 210,

Material Grade



Auto and Track

Machining Tolerance


Inspection Method

visual, dimensional, X-ray inspection

Production Process

We have updated our production line for making Cast Iron Auto Rocker Arm.

Our production process include resin sand molding line, shell molding line, green sand casting and lost wax investment casting production process.

Machining Workshop

We have full set line of machining facilities, various CNC equipment and Machining Center can meet customers’ requirements. After machining, the casting parts will be completed. Then, they will be inspected and packed for delivery and shipment.

Quality Control

Checking the raw material after they reach our factory------- Incoming quality control

Checking the details before the production line operated

Have full inspection and routing inspection during mass production---In process quality control

Checking the goods after they are finished---- Final quality control

Checking the goods after they are finished-----Outgoing quality control

Packing and Delivery

Packaging of Cast Iron Auto Rocker Arm can be customized based on customer requirements to meet the different needs, such as plastic bag, carton box, wooden case, crate, etc.

Hot Tags: Cast Iron Auto Rocker Arm, Manufacturers, Suppliers, China, Factory, Buy, Made in China

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