NLB-500 Internal Combustion Bolt Wrench for Railway Nut Fastening

• Purpose: Used for loosening and tightening rail sleeper bolts and nuts on railway tracks.

• Power: Equipped with a two-stroke gasoline engine power source, with a power of 1.47KW.

• Main technical parameters: Torque 550N.M, no-load speed 2700rpm, loaded speed 7120rpm, fuel tank capacity 1L, fuel mixture ratio 25:1, overall weight approximately 18KG.

• Performance features: Novel design, compact structure, small size, lightweight, high mobility, portable for hand-carrying, easy to move on and off tracks, two-stage handle shock absorption, good balance, can stand vertically, and the operation switch is easily accessible.

• Applicable scenarios: Particularly suitable for regional track maintenance operations in areas such as switches, tunnels, and bridge culverts where large and medium-sized maintenance machinery cannot operate. It can also be used in remote areas like rainforests, mountains, or deserts without power facilities, air compressors, or generators.

• Structure and working principle: Composed of a small gasoline engine, planetary gear transmission, rotation direction converter, impact booster, output shaft clutch, socket head, and operation handle. During operation, the engine's rotational torque is transmitted through the clutch, universal joint, and bevel gear reversing and reduction mechanism to achieve direction change and speed reduction before being delivered to the impact booster mechanism. The socket is then used to loosen and tighten bolts and nuts.