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The Digital Display Lithium Battery Double-Ended Wrench LB-700 is a portable, intelligent tool designed for railway bolt tightening and loosening—an essential task in track and turnout maintenance.
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The double-ended design supports two common bolt sizes, eliminating the need to carry multiple tools, while the digital display provides real-time torque readings to ensure compliance with railway safety standards. For railway maintenance teams, the LB-700 reduces human error, boosts efficiency, and enhances the reliability of bolted connections in tracks and turnouts.
The LB-700 features a high-contrast LCD digital display that shows real-time torque values (in N·m or ft-lb) with an accuracy of ±2%. This eliminates guesswork in bolt tightening, ensuring that each bolt meets the exact torque requirements specified by railway standards. Over-tightening (which can damage bolts) or under-tightening (which risks loose connections) is significantly reduced.
Powered by a 18V lithium-ion battery, the LB-700 offers up to 4 hours of continuous operation on a single charge. The battery charges fully in 2 hours, and a built-in LED indicator shows remaining power—preventing unexpected downtime during maintenance. Its cordless design allows workers to move freely around tracks, turnouts, and other tight spaces without being restricted by power cords.
The wrench’s double-ended head fits two common railway bolt sizes (e.g., 19mm and 22mm, customizable upon request). This versatility means maintenance teams only need to carry one tool for most bolt tasks, reducing equipment weight and improving workflow efficiency. The heads are made of high-strength chrome-vanadium steel for durability, resisting wear even with frequent use on rusted or tight bolts.
The LB-700 weighs just 1.2kg, reducing operator fatigue during long maintenance shifts. It also includes a non-slip rubber grip for better control in wet or oily conditions, and an overload protection system that shuts off the tool if torque exceeds safe limits—protecting both the user and the bolt.
The LB-700 is a versatile tool for various railway maintenance scenarios:
• Track Bolt Maintenance: Tightening or loosening bolts on rail joints, fishplates, and sleeper fasteners to ensure track stability.
• Turnout Bolt Maintenance: Servicing bolts on switch blades, frogs, and turnout frames—critical for preventing turnout malfunctions.
• On-Site Emergency Repairs: Ideal for emergency situations (e.g., loose bolts detected during inspections) due to its portability and quick setup.
• Depot Maintenance: Suitable for indoor depot work on rail components, where precision and mobility are equally important.
What is the torque range of the LB-700?
The standard torque range is 20-200 N·m, which covers most railway bolt requirements. Custom torque ranges (e.g., 10-150 N·m for light-duty applications) are available upon request.
How long does the battery last, and can spare batteries be used?
The built-in lithium battery provides up to 4 hours of continuous use. We offer compatible spare batteries that can be swapped in seconds, allowing for all-day operation without downtime.
Is the LB-700 suitable for use in harsh weather?
Yes. The LB-700 has an IP54 dust and water resistance rating, meaning it can withstand light rain, dust, and humidity—common conditions in outdoor railway maintenance. Its operating temperature range is -5℃ to +45℃, making it suitable for most climates.
The double-ended design supports two common bolt sizes, eliminating the need to carry multiple tools, while the digital display provides real-time torque readings to ensure compliance with railway safety standards. For railway maintenance teams, the LB-700 reduces human error, boosts efficiency, and enhances the reliability of bolted connections in tracks and turnouts.
The LB-700 features a high-contrast LCD digital display that shows real-time torque values (in N·m or ft-lb) with an accuracy of ±2%. This eliminates guesswork in bolt tightening, ensuring that each bolt meets the exact torque requirements specified by railway standards. Over-tightening (which can damage bolts) or under-tightening (which risks loose connections) is significantly reduced.
Powered by a 18V lithium-ion battery, the LB-700 offers up to 4 hours of continuous operation on a single charge. The battery charges fully in 2 hours, and a built-in LED indicator shows remaining power—preventing unexpected downtime during maintenance. Its cordless design allows workers to move freely around tracks, turnouts, and other tight spaces without being restricted by power cords.
The wrench’s double-ended head fits two common railway bolt sizes (e.g., 19mm and 22mm, customizable upon request). This versatility means maintenance teams only need to carry one tool for most bolt tasks, reducing equipment weight and improving workflow efficiency. The heads are made of high-strength chrome-vanadium steel for durability, resisting wear even with frequent use on rusted or tight bolts.
The LB-700 weighs just 1.2kg, reducing operator fatigue during long maintenance shifts. It also includes a non-slip rubber grip for better control in wet or oily conditions, and an overload protection system that shuts off the tool if torque exceeds safe limits—protecting both the user and the bolt.
The LB-700 is a versatile tool for various railway maintenance scenarios:
• Track Bolt Maintenance: Tightening or loosening bolts on rail joints, fishplates, and sleeper fasteners to ensure track stability.
• Turnout Bolt Maintenance: Servicing bolts on switch blades, frogs, and turnout frames—critical for preventing turnout malfunctions.
• On-Site Emergency Repairs: Ideal for emergency situations (e.g., loose bolts detected during inspections) due to its portability and quick setup.
• Depot Maintenance: Suitable for indoor depot work on rail components, where precision and mobility are equally important.
What is the torque range of the LB-700?
The standard torque range is 20-200 N·m, which covers most railway bolt requirements. Custom torque ranges (e.g., 10-150 N·m for light-duty applications) are available upon request.
How long does the battery last, and can spare batteries be used?
The built-in lithium battery provides up to 4 hours of continuous use. We offer compatible spare batteries that can be swapped in seconds, allowing for all-day operation without downtime.
Is the LB-700 suitable for use in harsh weather?
Yes. The LB-700 has an IP54 dust and water resistance rating, meaning it can withstand light rain, dust, and humidity—common conditions in outdoor railway maintenance. Its operating temperature range is -5℃ to +45℃, making it suitable for most climates.
