Nakai Bolt Heater – Flexible Type | Nichiboku Tech

Welcome to Nichiboku's industrial Blog

Introduction

Enhance your industrial maintenance and assembly processes with the Nakai Bolt Heater – Flexible Type, engineered by Nakai Bolt Heater of Japan. Designed for engineers and procurement professionals, this precision tool facilitates safe, efficient pre​-heating of bolts and studs—optimizing installation and ensuring long​-term structural reliability.

Innovative Nakai Bolt Heater: Flexible Type for Efficient Induction Heating in Confined Industrial Spaces.

---

Key Advantages of the Nakai Bolt Heater – Flexible Type

• Precision Induction Heating: Utilizes localized induction to expand bolts with speed and accuracy—enabling controlled tightening or removal of nuts.

• Flexible Design: Its bendable heating element allows access to tight or irregular spaces—ideal for complex assemblies or misaligned components.

• Time & Labor Efficiency: Significantly reduces processing time and manual effort compared to traditional heating methods.

• High Safety Standards: Insulated with high-grade ceramic handles and fully enclosed heating elements for user protection.
  

Product Specifications (Flexible Type)

Feature	Specification
Diameter Options (D)	15 mm, 17.5 mm, 19 mm, 20 mm, 23.5 mm, 26 mm
Cable & Power	2 m, 2 core 2 mm² cable; standard American plug (option for male/female plug)
Customization Available	Custom designs for capacity, voltage, length, heating zone, etc.

Technical Insights: How It Works

Induction heats the bolt efficiently from within, causing it to expand to a precise length. Once cooled, the bolt contracts—applying extra preload to nuts and enhancing clamping force. This method is ideal for critical applications such as turbines, compressors, hydraulic presses, and heavy machinery assemblies.

Ideal Applications

• Confined or Complex Assembly Spaces

• Non​-linear or Misaligned Bolt Configurations

• Heavy Equipment Maintenance (e.g., torque-critical bolt installations)

• Environments Prioritizing Safety & Efficiency
  

Why Choose Nakai’s Flexible Bolt Heater?

• Backed by precision Japanese engineering for reliability and durability

• Selection of standard sizes with bespoke customization available

• Compact, user-friendly form designed for field and plant use

• A credible solution for engineers and procurement professionals working on critical infrastructure
  

💪 Nakai Bolt Heater (Flexible) – Ready for Your Needs

Need help selecting the right configuration? Whether it’s a diameter, voltage, length, or heating zone variant, we can tailor a bolt heater to your specific needs.

• Capacity Mapping: Standard to custom (kW, V, bolt size D, length L, heating zone H, non​-heating zone NH)

• Accessories: Plug configuration flexibility, inspection reports, and compliance certification included
  

Take the Next Step

Enhance your maintenance and installation processes with a solution trusted for precision and performance.

📞 Request a quote today

📩 Contact our team for specifications

📅 Schedule a consultation with our specialists

Nichiboku Team –

---

Product Detail