Denkikogyo Develops Vertical Heat Treatment Equipment Reducing Machine Height and Cycle Time
Denkikogyo Co., Ltd. has developed a new vertical heat treatment machine utilizing a 'Dual Shift Method' that moves the workpiece and heating coil simultaneously. Installed at the Tokai Heat Treatment Research Center, the equipment reduces machine height by 35% and cycle time by 50%, enhancing prototyping capabilities for long automotive parts.
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- 📰 Published: May 19, 2026 at 19:00
- 🔍 Collected: May 19, 2026 at 10:31
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Denkikogyo Co., Ltd. (Headquarters: Koto-ku, Tokyo; President: Tadatoshi Kondo) has developed vertical heat treatment equipment featuring the 'Dual Shift Method,' which synchronizes the movement of the workpiece and the heating coil. A prototype has been installed at the company's Tokai Heat Treatment Research Center in Okazaki City, Aichi Prefecture.
The introduction of this equipment enables prototyping for long components such as automotive drive shafts, allowing for faster condition studies and evaluations for mass production. A patent application is currently pending for the technologies used in this equipment.
[Key Features (Dual Shift Method)]
- By adopting a configuration that simultaneously moves the workpiece and the heating coil, the machine height has been reduced by approximately 35%, and the recovery time after heating has been cut by roughly 1/2 compared to conventional models.
- The low-height design minimizes constraints during transport and installation, improving portability (e.g., eliminating the need for large-scale trailer transport or the task of laying the machine horizontally during move-in).
- The equipment is easier to install in factories with low ceilings, allowing for flexible deployment according to the site conditions.
[Main Specifications]
- Machine Size: D 1700mm x W 1300mm x H 2800mm
- Workpiece Range: Diameter Φ15–250mm / Length 100–1000mm / Weight up to 50kg
- Processing Range: Max 900mm (depending on coil/jacket shape)
- Stroke: Carriage 500mm / Coil 500mm (Total 1000mm)
- Feed Speed: Relative speed 500mm/s (Carriage 250mm/s, Coil 250mm/s)
- Workpiece Rotation: Up to 360rpm (Synchronous top/bottom rotation)
[Tokai Heat Treatment Research Center Overview]
- Location: 4-1 Kiyoguchi, Kamimitsugicho, Okazaki, Aichi 444-0246, Japan
- Site Area: 1,130.45 m2
Denkikogyo aims to further strengthen the prototyping capabilities of this center through the introduction of vertical heat treatment equipment, supporting the development and mass production processes for customers in the Tokai region.
The introduction of this equipment enables prototyping for long components such as automotive drive shafts, allowing for faster condition studies and evaluations for mass production. A patent application is currently pending for the technologies used in this equipment.
[Key Features (Dual Shift Method)]
- By adopting a configuration that simultaneously moves the workpiece and the heating coil, the machine height has been reduced by approximately 35%, and the recovery time after heating has been cut by roughly 1/2 compared to conventional models.
- The low-height design minimizes constraints during transport and installation, improving portability (e.g., eliminating the need for large-scale trailer transport or the task of laying the machine horizontally during move-in).
- The equipment is easier to install in factories with low ceilings, allowing for flexible deployment according to the site conditions.
[Main Specifications]
- Machine Size: D 1700mm x W 1300mm x H 2800mm
- Workpiece Range: Diameter Φ15–250mm / Length 100–1000mm / Weight up to 50kg
- Processing Range: Max 900mm (depending on coil/jacket shape)
- Stroke: Carriage 500mm / Coil 500mm (Total 1000mm)
- Feed Speed: Relative speed 500mm/s (Carriage 250mm/s, Coil 250mm/s)
- Workpiece Rotation: Up to 360rpm (Synchronous top/bottom rotation)
[Tokai Heat Treatment Research Center Overview]
- Location: 4-1 Kiyoguchi, Kamimitsugicho, Okazaki, Aichi 444-0246, Japan
- Site Area: 1,130.45 m2
Denkikogyo aims to further strengthen the prototyping capabilities of this center through the introduction of vertical heat treatment equipment, supporting the development and mass production processes for customers in the Tokai region.
FAQ
Where can I prototype heat treatment for long parts in Aichi?
At the Tokai Heat Treatment Research Center in Okazaki City, where a new vertical equipment for long parts like drive shafts is available.
What if my factory ceiling is too low for vertical machines?
Denkikogyo's new equipment reduces total height by 35% using the dual shift method, making it suitable for low-ceiling facilities.
How can I reduce cycle time in induction hardening?
The dual shift method cuts post-heating recovery time by approximately half, significantly improving overall production efficiency.