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Cat Crankshaft

Your Professional Cat Crankshaft Supplier

 

Our goal is to become your true partner in the field of cat crankshaft China. Zhejiang Weilin Mechanical Co., Ltd. is a national high-tech enterprise focusing on the production and trade Forged Steel Crankshaft in the field of Construction Machinery, Heavy Trucks, Marine, Generator Sets, Agricultural Machines, Automobiles, Diesel Engines, and etc. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
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Why Choose Us
 

Production Equipment: Our company possesses advanced production equipment, such as CNC grinding machine spindles, CNC grinding machine connecting rods, CNC lathes, CNC engine lathes, CNC crankshaft milling machines, semi-automatic quenching machines, CNC oil hole drilling machines, horizontal drilling and tapping machines, CNC keyway milling machines, crankshaft dynamic balancing machines, and non-destructive testing machines.

 

Production Market: Our products are well-received in the market and are exported to Europe, America, the Middle East, Southeast Asia, and other countries and regions.

 

Customized Solutions: We provide OEM drawing processing and personalized parameter customization services. You can receive a tailor-made solution within 72 hours to meet your unique needs.

 

Our Services: Our professional after-sales service and technical team is dedicated to providing you with professional assistance. We offer a one-year warranty for your peace of mind. If your crankshaft fails during this period due to material or manufacturing defects, we will provide free repair or replacement services.

 

Advantages of Cat Crankshaft
1

Cost-effective

Cast iron crankshafts are less expensive to produce than forged steel alternatives.

2

Improved wear resistance

The graphite in the cast iron enhances the wear resistance of the main and crank pin bearings.

3

Reliability

The high cyclic strength of cast iron adds to the overall dependability of the crankshaft.

4

Economical design

Casting allows for more complex and efficient use of material for intricate designs.

 

Specification of Cat Crankshaft

 

ENGINE NO

C18

Gross weight(kg)

208

OEM/PART NO

1950314,1894918,4685119

Length(mm)

1209.21

Crankshaft Material

Forged steel 42CrMo

Main journal(mm)

120.65

Engine type

Diesel engine

Crankpin journal(mm)

97

Application

CAT385C,CAT C18

Stroke(mm)

182.56

Anti-rusty Coating

Yes

Hardness(HRC)

HRC52-58

 

Crankshaft for Cat C18

 

Features of Cat Crankshaft

The CAT crankshaft is a forged steel component manufactured from 42CrMo steel. It is built for the C18 engine series, ensuring the strength and durability required for heavy-duty CAT machinery.

 

We focus exclusively on forged steel crankshafts. After forging, the crankshaft goes through a series of treatments-tempering, induction hardening, and precision grinding. Each step is completed in-house using advanced CNC equipment, ensuring consistency across batches.

 

 
Application of Cat Crankshaft
 
01/

Core mechanical functions: Convert rotary motion into reciprocating motion for compressors and reciprocating pumps.

02/

Main rotating member in automotive engines: Drives flywheel, transmission input, oil pump, and timing components via gears or chains.

03/

Industrial machinery and power generation: Drives compressors, generators, and stationary engines used in powerplants, standby generators, and combined heat-and-power units.

04/

Agriculture, construction, and small engines: Found in tractors, combine harvesters, lawn mowers, chainsaws, and portable generators—any engine-driven equipment requiring compact rotary output from reciprocating pistons.

 

Components of Cat Crankshaft

 
 

Shaft journals: They form the main bearing points in the crankcase and define the axis of rotation.

 
 

Crank pins (connecting rod journals): They accommodate the connecting rods that transmit the piston movement.

 
 

Crank webs: These connect the shaft and crank pins. Their arrangement determines the cranking and directly influences the firing order and engine running.

 
 

Counterweights: They provide the necessary balancing and reduce vibrations.

 
 

Bearing points: Highly stressed surfaces that must be specially hardened and lubricated to minimize wear.

 

 

Packing and Shipping of Cat Crankshaft

 

Packing

Standard export plywood or raw wood, anti-rust coating, and plastic protection caps.(Plywood is used by default. raw wood is available at an additional cost.)

Shipping

Sea freight as standard

 

Certificate

 

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FAQ

 

Q: Are your CAT crankshafts OEM or aftermarket parts?

A: We supply high-quality aftermarket CAT crankshafts that meet or exceed OEM technical standards.

Q: What materials are used for CAT crankshafts?

A: CAT crankshafts are usually made from forged alloy steel or high-strength nodular cast iron with excellent fatigue resistance.

Q: What heat treatment processes are applied?

A: Common processes include quenching, tempering, nitriding, and induction hardening to improve wear resistance and service life.

Q: How is dimensional accuracy guaranteed?

A: Precision CNC machining, strict tolerance control, and 100% inspection ensure high dimensional accuracy and perfect fitment.

Q: Are your CAT crankshafts dynamically balanced?

A: Yes, all crankshafts are dynamically balanced to reduce vibration and ensure smooth engine operation.

Q: Can CAT crankshafts be reconditioned or remanufactured?

A: Yes, many CAT crankshafts can be reground and reconditioned within allowable undersize limits.

We're well-known as one of the most reliable cat crankshaft manufacturers and suppliers in China. Please feel free to wholesale high quality cat crankshaft made in China here from our factory. We also accept customized orders.

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