Gasoline Internal Combustion Engine Double-Head Bolt Wrench

Gasoline Internal Combustion Engine Double-Head Bolt Wrench

Category： Track Maintenance Equipment
Model:NLB-600
Fuel Consumption:About 1.4 L/h
Engine Power:7HP
Adjustable Tightening Torque:80～350 N·m
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Gasoline Internal Combustion Engine Double-Head Bolt Wrench

1. Brief introduction:

Our internal combustion double-head Bolt wrench is specially developed for loosening and tightening the bolt nuts of railway sleeper fasteners. As a professional Bolt wrench, it adopts double-sleeve simultaneous operation, with adjustable torque that can be preset according to specific construction requirements. This high-performance Bolt wrench boasts ultra-large reverse torque up to 600N·m, enabling it to easily loosen all kinds of rusted bolts. Meanwhile, the Bolt wrench converts impact torque into static torque, effectively reducing the pressure error of rail fasteners after operation. With flexible reversing, centralized control, simple operation, easy portability and high work efficiency, this Bolt wrench is an indispensable tool for a large number of complex bolt loosening and tightening operations in railway maintenance.

2. Technical parameters:

Item	Specification
Model	NLB-600
Fuel Tank Capacity	2.2 L
Fuel Consumption	About 1.4 L/h
Engine Model	GX160 Type 1/2 Four-Stroke Gasoline Engine
Engine Power	7HP
Rotational Speed	3500～3600 rpm
Number of Sleeves	2 pcs
Sleeve Rotational Speed	136 rpm
Sleeve Center Distance	214/234 mm
Adjustable Tightening Torque	80～350 N·m
Maximum Loosening Torque	≥600/≥650 N·m
Work Efficiency	≤3 seconds/piece

3. Use method:

Step	Operation Content
1	Check whether the transmission part is flexible and whether the thread connection is loose.
2	Turn the reversing handwheel to place the working part of the Bolt wrench’s socket in the middle position (neutral position).
3	Lift the Bolt wrench onto the rail, make the front and rear rail wheels clamp the rail, and adjust the height of the rear rail wheel according to the rail type.
4	Insert the auxiliary support frame into the auxiliary support sleeve, so that the auxiliary support wheel clamps the other rail.
5	Add engine oil and fuel according to the engine operation manual, start the engine for a short no-load operation. After normal operation, adjust the throttle to 2/3 position or maximum locking position to start working.
6	Turn the reversing handwheel to the required direction: clockwise for loosening or counterclockwise for tightening. Align the nut, hold the operating handle of the Bolt wrench with your hand to press down and fasten the nut, then you can use the Bolt wrench to tighten and loosen the nut.
7	During the tightening operation with the Bolt wrench, lift the sleeve when you hear a ticking sound.
8	Before stopping the Bolt wrench, reduce the throttle, and turn off the engine after the engine runs idly for a short time.
9	Remove the auxiliary support frame.