
Maximum Length: 4000L | Maximum Diameter: φ50
We manufacture a wide range of shafts, including drive shafts, roller shafts, conveyor shafts, linkage shafts, and coupling shafts.
Our in-house processing handles various materials, including iron, steel, stainless steel, titanium, CFRP (Carbon Fiber Reinforced Plastic), and PVC (Polyvinyl Chloride).
We also provide custom solutions, such as SUS + PVC-coated shafts and CFRP pipes, designed to meet your specific strength requirements.
Commitment to the Quality

Made in JAPAN Quality
- All products from Suehiro Industries are made using Japanese materials, and the manufacturing process is fully carried out at our in-house factory in Japan.
- We guarantee stable quality, adhering to ISO standards. Precision along the entire length is assured through the use of our through-feed grinding machine.
Centerless Grinded Quality
- We are capable of simultaneous processing of lengths up to 4000L for diameters up to Φ50, and up to 3000L for diameters below Φ10.
- After shaft turning, we perform centerless grinding to reduce the outer diameter, contributing to burr removal and preventing handling damage.
Our skilled operators employ advanced distortion correction techniques.
Light weighting Quality
- Leveraging our extensive supplier network, we design and select materials tailored to meet our customers’ needs. Processing similar to round bars is also possible.
For diameters up to φ10, we utilize an in-house coil-to-bar straightening process, enabling us to deliver even higher precision products.
Leave your challenges to us!

Design Shafts Tailored to Your Requirements
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Various Material Combinations
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Suehiro Kogyo, The Shafts Expert
Three Key Strengths of Suehiro Kogyo

Versatility
We manufacture shafts from a wide range of materials, including metals like carbon steel, stainless steel, and titanium, as well as resin-based materials such as CFRP, PVC, and engineering plastics. Our expertise extends to processing round bars, pipes, and composite materials to meet diverse requirements.

Custom Design
We provide optimized designs tailored to customer requirements, covering everything from material selection to packaging specifications.

Customer Trust
With over 60 years of commitment to quality, we have earned customer trust through advanced technology and extensive expertise. ISO 9001 certified since 2003.
Technology Overview

Straightening, Cutting, and Distortion Correction Technology
Achieving high precision with straightness of 0.1/1000mm.

Long-Length and Precision Machining Technology
Maintaining perfect straightness for shafts up to φ50 in diameter and 4000mm in length.

Centerless Grinding Technology
Achieving roundness of 0.02 and surface roughness of Ra0.4, with precision down to the micron level.

Material Technology
We offer material design tailored to specific applications, including resin processing of FRP/CFRP, as well as a wide range of steel and carbon materials.
Suehiro Products
From heavy machinery to home appliances, Suehiro can produce drill rods which are customized to meet each customer’s needs.
Exceptional quality of Suehiro’s drive shafts actualizes strong market share and business growth of brush cutters.
We custom-make shafts tailored to the operating environment and purposes.
FRP products, primarily made from CFRP, are super-light and durable. They are good for outer pipes of various machinery.
Guided by our founder’s philosophy of ‘actively embracing new technologies,’ we are dedicated to exploring innovative materials and expanding into new fields of work.