Vraj Engineering

Worm Drive Limit Switch FGLS are suitable for use on reversing drives, such as Hoists, Cranes, Winches, Rolling Mills, Theater Curtains, Coke Oven etc. The driving motion is transmitted by worm gear. All gears and hubs are made of low wear thermoplastic material. The rotational movements are transmitted to switches by adjustable cams. Limit Switch LSR Cross Rotary for travel Motion Operates the control change over the contacts of a motor of a moving equipment which when operates with a load a actuates the 140mm rods of the Limit Switch and this in turn operates the NO/NC change-over contact elements.

Operates the control change-over the contacts of a motor of a moving equipment when a cam moving with loads actuates the lever / (or the weight rests on a surface) of the Limit Switch. This turns the cam on a square shaft and operates the NO / NC change over the contact elements.

The LSR way switch operates the control change-over contacts of a motor of a moving equipment when the moving equiment, operating with a load, actuates the 300mm rads of the Limit Switch, the NO/NC contact elements change-over to control the equipment's movement.

Rotary Geared Limit Switch GRLS type is suitable for use to reversing drives like Hoists, Winches, Rolling Mills & various other mechanisms used in steel plants such as Coke Oven, Feeding Oven Machinery etc.

Rotary Geared Limit Switch GRLS is used to stop motor supply when the moving load reaches the extreme end positions of the working zone. The driving motion is transmitted by worm gear through the worm shaft. The rotations and movements are transmitted to switches by adjustable cams.

Rotary Geared Limit Switch GRLS type is suitable for use to reversing drives like Hoists, Winches, Rolling Mills & various other mechanisms used in steel plants such as Coke Oven, Feeding Oven Machinery etc.

Rotary Geared Limit Switch GRLS is used to stop motor supply when the moving load reaches the extreme end positions of the working zone. The driving motion is transmitted by worm gear through the worm shaft. The rotations and movements are transmitted to switches by adjustable cams.

Weight Operated Limit Switches are used on control / power circuit of reversing drives so as to limit their rotation / movement within a predetermined position. Operation:

When the snatch block of the crane reaches its top position the snatch block pushes a plate which is hanging from one end of the lever of the limit switch. Due to the weight placed on the other end of the lever this lever is pushed up. When the lever is pushed up the shaft to which this lever is connected rotates there by rotating the cams which eventually open the contacts and disconnect the motor. The electronic limit switch contacts are automatically reset when the lever returns to zero position due to gravitational force.