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Hino Crankshaft

Your Professional Hino 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.

 

 
 
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 Hino Crankshaft

 

High strength & rigidity

Made from strong materials like forged alloy steel or high-grade nodular cast iron (qt800-3), they resist bending and torsion under heavy loads.

01

Enhanced wear resistance

Nitriding and induction hardening treatments create a hard surface, increasing resistance to wear and extending service life.

02

Reliability

Designed to meet strict oem specifications, they ensure consistent performance and maintain engine integrity in commercial applications.

03

Precision engineering

Cnc machining, grinding, and balancing ensure tight tolerances, dimensional accuracy, and smooth operation, reducing vibration.

04

Improved fatigue life

Processes like shot peening increase the crankshaft's intensity and fatigue strength, critical for demanding conditions.

05

 

Specification of Hino Crankshaft

 

ENGINE NO

J05

Gross weight(kg)

45.2

OEM/PART NO

S1341-12281

Length(mm)

638

Crankshaft Material

Forged steel 42CrMoA

Main journal(mm)

80

Engine type

Diesel engine

Crankpin journal(mm)

65

Application

Kobelco Excavators

Stroke(mm)

130

Anti-rusty Coating

Yes

Hardness(HRC)

HRC52-58

 

Crankshaft for Komatsu S4d102

 

Features of Hino Crankshaft

We use 42CrMoA bar stock for one simple reason: it lets the HINO J05 crankshaft shrug off abuse that would snap a cast-iron arm. Tensile tests in our lab show ≥1000 MPa-call it 28 % stronger than the best grey-iron option-and the yield point sits at 750 MPa, so the crankshaft is less prone to permanent deformation under full-load, full-stroke conditions.

 

Tempering + Induction Hardening + Stress-Relief Tempering. Ensures surface hardness HRC 52–58 with a 3–5 mm hardened layer. Provides a strong balance of surface resistance and internal toughness.

 

Achieves Ra ≤ 0.4 μm surface finish and ≤0.005 mm roundness. Reduces friction, minimizes oil consumption, and extends bearing life. Enhances dynamic balance for smooth engine performance.

 

Application of Hino Crankshaft

 

 

Hino crankshafts are used in various Hino diesel engines, such as those in trucks, off-highway equipment, and potentially other vehicles, to convert the linear motion of the pistons into rotational motion. Their application is to serve as the backbone of the internal combustion engine, enabling the conversion of reciprocating motion to a smooth rotary motion that can then be transmitted to the vehicle's drivetrain.

 

Components of Hino Crankshaft

 

 
 

Counterweights

Added to balance the rotating mass, reducing vibration and stress on the engine.

 
 

Flange

At the rear, this connects to the flywheel, transmitting power to the transmission.

 
 

Forged steel

Common for heavy-duty use, offering high strength.

 
 

Cast iron/ductile iron

Used for cost-effectiveness and good machinability.

 
 

Billet steel

High-performance options machined from solid steel bars.

 
 

Main journals

These are the smooth, cylindrical surfaces that sit in the engine block's main bearings, allowing the crankshaft to rotate freely.

 
 

Crankpins

Offset from the main journals, these connect to the big end of the connecting rods, which in turn connect to the pistons.

 
 

Webs

The solid sections that connect the main journals to the crankpins, providing strength.

 

Packing and Shipping of Hino 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: What materials are used for your Hino crankshafts?

A: They are typically made from forged alloy steel or high-strength nodular cast iron for superior wear resistance and toughness.

Q: What heat treatment processes are applied to Hino crankshafts?

A: Processes include quenching, tempering, induction hardening, and nitriding to ensure long-term durability.

Q: Are your Hino crankshafts dynamically balanced?

A: Yes, all crankshafts go through dynamic balancing to minimize vibration and ensure stable engine performance.

Q: Can Hino crankshafts be repaired or reground?

A: Yes, many Hino crankshafts can be reground within OEM undersize limits and reused in remanufactured engines.

Q: How do you ensure the quality of your Hino crankshafts?

A: Quality inspections include chemical composition testing, hardness checks, magnetic particle inspection, ultrasonic flaw detection, and full dimensional verification.

Q: Do you offer custom crankshaft manufacturing for Hino engines?

A: Yes, customization is available with customer-provided samples, drawings, or special material requirements.

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

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