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Crankshaft Product List and Ranking from 4 Manufacturers, Suppliers and Companies

Crankshaft Product List

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Fujita Iron Works Co., Ltd. Business Introduction

Fujita Iron Works Co., Ltd. Business Introduction

Leave the production of motorcycle engine parts and small general-purpose parts to us.

Fujita Iron Works Co., Ltd. is a specialized parts manufacturer capable of integrated production, including mold making, hot forging, cold forging, heat treatment processing, cutting processing, polishing processing, and assembly. We handle assembled crankshafts, integrated crankshafts, split-type connecting rods, and integrated connecting rods, so please feel free to contact us if you have any requests. 【Products】 ■ Assembled crankshafts ■ Integrated crankshafts ■ Split-type connecting rods ■ Integrated connecting rods ■ Others *For more details, please download the PDF or feel free to contact us.

  • Drive system parts
  • Vehicle body parts

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[Processing Example] Crankshaft 6 for S43C Engine

[Processing Example] Crankshaft 6 for S43C Engine

Rough machining of the outer diameter is performed using a lathe! Polishing is applied to the shaft section and pin holes to complete the process.

We would like to introduce a case study of processing crankshafts for agricultural machinery at our company. The size is L48×φ12, with a flange diameter of φ48. After cold forging to shape the rough material and heat treatment (quenching), rough machining of the outer diameter is performed on a lathe. Then, keyway and thread rolling processes are carried out, followed by polishing of the shaft section and pin holes to complete the product. Our company possesses a wide range of equipment, including NC lathes and machining centers, as well as our own manufactured rolling machines and hob machines, allowing us to excel not only in turning and milling but also in gear cutting and thread rolling. Please feel free to contact us with any inquiries. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor machinery manufacturers ■Application: Small outdoor machinery ■Material: S43C ■Size: L48mm (flange section: φ48mm) × φ12 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for S43C Engine 7

[Processing Example] Crankshaft for S43C Engine 7

Introducing examples of rough material shaping and heat treatment (quenching and tempering) using cold forging!

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material through cold forging and applying heat treatment (quenching and tempering), we perform rough machining of the outer diameter using a lathe. Key grooves and thread rolling are carried out, and the shaft section and pin holes are finished with polishing. The tempering process, one of the heat treatments, involves reheating to over 550°C after quenching, which forms a sorbite structure and achieves high toughness (ductility). 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: S43C ■ Size: L62mm (flange part: φ48mm) × φ12 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 7

[Processing Example] Crankshaft for Engine Made of SCM415 7

Response tailored to customer needs! Improvement of strength and hardness through high-frequency hardening of carburizing and screw parts.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material and machining the center hole through cold forging, we performed rough machining of the outer diameter on a lathe, followed by drilling and keyway processing on a machining center. We requested a specialized heat treatment partner to improve strength and hardness through carburizing and high-frequency quenching of the threaded sections. Finally, the product is completed with grinding finish of the outer diameter and pin holes, as well as chamfering of the keyway. The dimensions are L54×φ12×φ10, with a flange diameter of φ55, and the material is chromium-molybdenum steel SCM415. 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L54mm (flange part: φ55mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 8 for Engine Made of SCM415

[Processing Example] Crankshaft 8 for Engine Made of SCM415

A processing example that requires fine adjustments, such as controlling the cutting depth to prevent chipping of the blade edge!

We would like to introduce a case study of processing crankshafts for agricultural machinery at our company. Generally, lathe processing is performed with continuous cutting, but in the case of intermittent cutting, the tool is pressed against the material intermittently, making it prone to chipping and vibration, which makes it difficult to maintain stable machining accuracy. Using chips that are less likely to chip is a prerequisite, but even so, fine adjustments such as controlling the feed rate and cutting depth to prevent the cutting edge from chipping are required. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor Machinery Manufacturer ■Application: Small Outdoor Machinery ■Material: SCM415 ■Size: L65mm (Flange part: φ47mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 9

[Processing Example] Crankshaft for Engine Made of SCM415 9

Select construction methods flexibly! Here are examples of various processes applied after rough material shaping through cold forging.

We would like to introduce a case of machining crankshafts for agricultural machinery at our company. The material used is chromium-molybdenum steel SCM415. After forming the rough material and machining the center hole through cold forging, the outer diameter is roughly machined on a lathe, and then drilling and keyway processing are performed on a machining center. We commissioned a specialized heat treatment partner to improve strength and hardness through carburizing and high-frequency hardening of the threaded areas, and the finished product is completed with grinding of the outer diameter and pin holes, as well as chamfering of the keyway. [Case Overview] ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L50mm (flange part: φ47mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 12

[Processing Example] Crankshaft for Engine Made of SCM415 12

The material is SCM415 chrome-molybdenum steel! A processing example that improves strength and hardness through heat treatment.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material and machining the center hole through cold forging, the outer diameter is roughly processed on a lathe, and then drilling and keyway processing are performed on a machining center. We request a specialized partner company for heat treatment to enhance strength and hardness. Finally, the product is completed with grinding finishes on the outer diameter and pin holes, as well as chamfering of the keyway. The size is L56×φ12×φ10, with a flange diameter of φ53, and the material is chromium-molybdenum steel SCM415. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor Machinery Manufacturer ■Application: Small Outdoor Machinery ■Material: SCM415 ■Size: L56mm (Flange: φ53mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 13 for Engine Made of SCM415

[Processing Example] Crankshaft 13 for Engine Made of SCM415

Specializing in mass production processing of tens of thousands of shafts per month! Example of crankshaft processing with SCM415 material.

We would like to introduce a case of processing crankshafts for agricultural machinery engines at our company. The size is L31mm × φ10, with a flange diameter of φ44. The material used is chromium-molybdenum steel SCM415. The rough material is shaped through cold forging and center hole processing, followed by rough machining of the outer diameter on a lathe, and drilling and keyway processing on a machining center. We have requested a specialized partner company for heat treatment, which improves strength and hardness. The finished product is completed with grinding of the outer diameter and pin holes, as well as chamfering of the keyway. [Case Overview] ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L31mm (flange part: φ44mm) × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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Yuasa Machinery Co., Ltd. Business Introduction

Yuasa Machinery Co., Ltd. Business Introduction

It is a company that aims to be one-of-a-kind and is making great strides based on its high technological capabilities, which are recognized not only domestically but also internationally!

We would like to introduce Yuasa Koki Co., Ltd., which will exhibit at the Okayama Prefecture booth at the "Monozukuri Fair 2025 (Fukuoka)." The company's crankshafts boast a top-class share in Japan and serve as the heart of power devices such as engines. They are installed in engines of well-known domestic manufacturers' automobiles, motorcycles, and agricultural machinery. As a manufacturing company trusted by customers in every era, we continue to pursue "safety," "delivery time," "quality," and "cost," while working together as a company to promote our business and consistently provide products that satisfy our customers. 【Business Activities】 ■ Crankshaft processing (mass production and prototype processing) ■ Precision machining ■ Hydraulic equipment design and manufacturing ■ Design, manufacturing, and sales of telescopic poles *For more details, please download the PDF or feel free to contact us.

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  • 3.png
  • Hydraulic Equipment
  • Processing Contract

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[Processing Example] Crankshaft 5 for S43C Engine

[Processing Example] Crankshaft 5 for S43C Engine

For small outdoor work machinery! Examples of various processes applied after rough material shaping through cold forging.

We would like to introduce a case of machining crankshafts for agricultural machinery at our company. This product is a mechanism that converts the up-and-down motion of the piston inside the engine into rotational motion. The power is transmitted to the transmission through the connecting rod and flywheel, causing the wheels to rotate. Our company is capable of building dedicated lines using gantry loaders, allowing us to excel in mass production of tens of thousands of shafts per month tailored to our customers' needs. [Case Overview] ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor Machinery Manufacturers ■ Application: Small Outdoor Machinery ■ Material: S43C ■ Size: L47mm (Flange: φ45mm) × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 5 for Engine Made of SCM415

[Processing Example] Crankshaft 5 for Engine Made of SCM415

From rough processing to rolling, heat treatment, and finishing! We specialize in consistent mass production processing of shafts.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. The size is L66×φ12×φ10, with a flange diameter of φ55. The material is chromium-molybdenum steel SCM415. After machining the center hole, rough machining of the outer diameter and threading is performed on a lathe, followed by heat treatment. After that, finishing of the outer diameter and pin hole is done, resulting in the completed product. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor Machinery Manufacturer ■Application: Small Outdoor Machinery ■Material: SCM415 ■Size: L66mm (flange part: φ55mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 6 for Engine Made of SCM415

[Processing Example] Crankshaft 6 for Engine Made of SCM415

High strength and wear resistance required! A case study of processing that achieved high toughness through tempering.

We would like to introduce a case study of processing crankshafts for agricultural machinery engines at our company. In the heat treatment of the shafts, we first perform carburizing and high-frequency quenching. By heating the workpiece to a high temperature and then rapidly cooling it, we can increase its hardness. While quenching increases hardness, it also has the disadvantage of making the material brittle. Therefore, we perform tempering to enhance toughness (ductility). By heating the workpiece at a temperature lower than the quenching temperature and holding it for a certain period before slowly cooling it, we can achieve high toughness. 【Case Overview】 ■ Product Category: Crankshaft ■ Delivery Industry: Outdoor Machinery Manufacturer ■ Application: Small Outdoor Machinery ■ Material: SCM415 ■ Size: L66mm (Flange: φ55mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine (Carbon Steel for Mechanical Structures) 3

[Processing Example] Crankshaft for Engine (Carbon Steel for Mechanical Structures) 3

Rich experience in mass production processing of shafts for automobiles and agricultural machinery! Examples of processing using hot forging.

We would like to introduce a case of processing crankshafts for agricultural machinery engines at our company. The material used is alloy steel for mechanical structures, with dimensions of L57×φ15 and a flange diameter of φ64. The rough material is shaped through hot forging, followed by center hole processing. The outer diameter is then roughly machined on a lathe, and pin holes are drilled and threads are rolled before heat treatment is performed to enhance strength and hardness. Finally, the crankshaft is completed through grinding and finishing of the outer diameter and pin holes. 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: Alloy steel for mechanical structures ■ Size: L57mm (flange: φ64mm) × φ15 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 10

[Processing Example] Crankshaft for Engine Made of SCM415 10

For small outdoor work machinery! A machining example of a crankshaft made from SCM415, a chromium-molybdenum steel.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material and machining the center hole through cold forging, we performed rough machining of the outer diameter on a lathe, followed by drilling and keyway processing on a machining center. We requested a specialized heat treatment partner to improve strength and hardness through carburizing and high-frequency hardening of the threaded areas. The finished product is completed with grinding of the outer diameter and pin holes, as well as chamfering of the keyway. 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L50mm (Flange part: φ47mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 11

[Processing Example] Crankshaft for Engine Made of SCM415 11

For small outdoor work machinery! A case where toughness (resilience) was enhanced through high-frequency tempering.

We would like to introduce a case study of machining crankshafts for agricultural machinery at our company. After performing center hole processing for lathe machining, we carried out outer diameter turning, threading, and drilling on the shaft section. We requested a specialized partner company for heat treatment, which hardens the surface. At this time, if the heat treatment penetrates too much into the threaded section, it can become brittle, which is critical for shafts that require toughness. Therefore, we enhance toughness (ductility) through high-frequency tempering. 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L65mm (Flange part: φ53mm) × φ15 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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