Roll Business

Roll Business

About

About Our Roll Business

Boasting the top market share of rolls made with special steel materials, we provide full support
for customers’ production lines

In our roll business, we have established an integrated in-house production framework involving all stages from raw material procurement through casting, processing, and shipping out. We supplement both our static and centrifugal casting processes with proprietary special heat treatment techniques of our own. The characteristics required for the rolls for rolling mills that we make differ depending on factors including customers’ manufacturing conditions and the stands used. We select optimal materials based on examinations of rolls that have been used, usage requirements, and more, providing rolling mills with a full range of rolls for everything from roughing stands to finishing stands.

Product Development

Product Development

We are equipped to manufacture rolls in an extensive range of sizes and shapes,
including blooming mill rolls, rolls for everything from roughing stands to finishing stands, and ring rolls.

Bar & Wire Rod
(Special steel & ordinary steel)
Section

Rolls for blooming mills & roughing stands

Diameter 〜Φ1,500mm
Weight 〜50t
Material Ductile iron, graphitic steel

BD rolls

Diameter 〜Φ1,500mm
Weight 〜50t
Material Ductile iron, graphitic steel, forged adamite

Rolls for intermediate & finishing stands

Diameter 〜Φ1,100mm
Weight 〜25t
Material Ductile iron, graphitic steel, adamite, indefinite chilled iron, definite chilled iron, high-speed steel

Rolls for intermediate & finishing stands

Diameter 〜Φ1,100mm
Weight 〜25t
Material Ductile iron, graphitic steel, adamite, forged adamite, indefinite chilled iron, high-speed steel, HIP high-speed steel

Ring rolls

Weight Dozens of kg ~ 100 kg
Material Ductile iron, indefinite chilled iron, high-speed steel, HIP high-speed steel

Ring rolls

Weight Dozens of kg ~ 100 kg
Material Ductile iron, graphitic steel, adamite, indefinite chilled iron, high-speed steel, HIP high-speed steel
Bar & Wire Rod
(Special steel & ordinary steel)

Rolls for blooming mills & roughing stands

Diameter 〜Φ1,500mm
Weight 〜50t
Material Ductile iron, graphitic steel
Section

BD rolls

Diameter 〜Φ1,500mm
Weight 〜50t
Material Ductile iron, graphitic steel, forged adamite
Bar & Wire Rod
(Special steel & ordinary steel)

Rolls for intermediate & finishing stands

Diameter 〜Φ1,100mm
Weight 〜25t
Material Ductile iron, graphitic steel, adamite, indefinite chilled iron, definite chilled iron, high-speed steel
Section

Rolls for intermediate & finishing stands

Diameter 〜Φ1,100mm
Weight 〜25t
Material Ductile iron, graphitic steel, adamite, forged adamite, indefinite chilled iron, high-speed steel, HIP high-speed steel
Bar & Wire Rod
(Special steel & ordinary steel)

リングロール

Weight Dozens of kg ~ 100 kg
Material Ductile iron, indefinite chilled iron, high-speed steel, HIP high-speed steel
Section

リングロール

Weight Dozens of kg ~ 100 kg
Material Ductile iron, graphitic steel, adamite, indefinite chilled iron, high-speed steel, HIP high-speed steel

Manufacturing & Technology

Manufacturing & Technology

Main Clients

Main Clients

(Listed in no particular order)
  • Nippon Steel Corporation
  • JFE Steel Corporation
  • Kobe Steel, Ltd.
  • Daido Steel Co., Ltd.
  • Sanyo Special Steel Co., Ltd.
  • Aichi Steel Corporation
  • Mitsubishi Steel Muroran Special Steel Co., Ltd.
  • Osaka Steel Co., Ltd.
  • Godo Steel, Ltd.
  • Oji Steel Co., Ltd.
  • JFE Bars & Shapes Corporation
  • Shinkansai Steel Co., Ltd.
  • POSCO
  • SeAH Besteel Corp.
  • CHINA STEEL Corp.