Nakai Bolt Heater – Straight & Flexible Type | Precision Japanese Engineering by Nichiboku

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Introduction

In large-scale turbine maintenance, precision and reliability are non-negotiable. The Nakai Bolt Heater – Straight & Flexible Type, engineered in Japan and supplied worldwide by Nichiboku Technology, delivers controlled, uniform heating to ensure secure fastening, easy bolt removal, and extended turbine life. Whether in power generation, marine propulsion, or heavy industry, this tool ensures professional results every time.

Nakai Bolt Heater: Precision Turbine Maintenance Tool by Nichiboku Technology – Featuring Straight & Flexible Types for Enhanced Performance.

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Why Bolt Heating is Critical in Turbine Maintenance

Turbines operate under extreme thermal, mechanical, and rotational stresses. During assembly and disassembly, precise bolt heating is essential to:

• Achieve uniform expansion for secure installation

• Avoid thread damage and component wear

• Maintain operational safety and reliability
  

The Nakai Bolt Heater’s advanced heating elements provide consistent, controlled heat, ensuring bolts expand evenly and can be installed or removed without risk to surrounding components.

Straight vs. Flexible Type – Choosing the Right Tool

Straight Type Bolt Heater

• High-intensity, direct heating for bolts with unobstructed access

• Best for standard turbine maintenance environments
  

Flexible Type Bolt Heater

• Adaptable heating for confined, angled, or hard-to-reach bolt locations

• Ensures precise heat delivery in challenging assembly spaces
  

Key Features of the Nakai Bolt Heater

• Precision Japanese Engineering by Nichiboku – High-quality heating elements for consistent results

• Heavy-Duty Durability – Built for repeated industrial use

• Uniform Heat Distribution – Prevents localized overheating

• Industrial Safety Compliance – Meets strict safety standards

The Nakai Bolt Heater – Straight & Flexible Type ensures precision bolt heating for turbines and heavy machinery. Supplied worldwide by Nichiboku Technology.

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Specifications to Consider When Requesting a Quotation (Example)

When applying for a quotation, please provide the following information:

Specification	Value / Details
Type of Bolt Heater	Flexible or Straight
Capacity (kW)	2.5
Power (V)	240
Diameter (DIA) (mm)	26
Length (L) (mm)	473
Heater Zone Length (H) (mm)	98
Non-Heater Zone Length (N.H) (mm)	375 (L – H)
Quantity (Q'ty)	3

Note: Providing accurate measurements ensures the most suitable Nakai Bolt Heater configuration for your application. (These values in the table are for example only)

Wide-Ranging Applications

The Nakai Bolt Heater is indispensable across industries, including:

• Power generation (steam, gas, and hydro turbines)

• Industrial compressors and heavy rotating equipment

• Marine propulsion systems

• Large-scale gear assemblies
  

Partner with Nichiboku Technology

Nichiboku Ltd. supplies Nakai Bolt Heaters to clients globally, offering:

• Reliable worldwide delivery

• Technical consultation for model selection

• After-sales installation and operational support: Visit the Nakai Bolt Heater section : (here)

Contact Our Technical Team for Further Details

Nichiboku Ltd. is your official partner for Japanese precision machinery components.

📩 Contact our team for specifications

Nichiboku Team –

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