Vraj Engineering

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.

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.

Rotary Geared Limit Switch (GRLS) is engineered for precise end-position control in reversing drive applications such as hoists, winches, rolling mills, and heavy-duty mechanisms used in steel plants, including coke ovens and feeding oven machinery.

The drive motion is transmitted through a robust worm gear and worm shaft mechanism, ensuring smooth and accurate operation. Adjustable cams transfer rotational movement to the switches, enabling reliable motor cut-off when the moving load reaches extreme end positions. GRLS limit switches provide enhanced safety, dependable performance, and long service life in demanding industrial environments.

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.

Worm Drive Limit Switch (FGLS) is designed for reliable position and travel control on reversing drives used in hoists, EOT cranes, winches, rolling mills, theater curtains, and coke ovens. The drive motion is transmitted through a precision worm gear mechanism, ensuring smooth, accurate, and safe operation. All gears and hubs are manufactured from low-wear thermoplastic materials for extended service life and minimal maintenance.

The LSR Cross Rotary Limit Switch controls motor direction change during travel motion by actuating adjustable cams and 170 mm operating rods, which precisely operate NO/NC change-over contacts. This ensures accurate load-dependent switching, dependable control, and enhanced safety for moving industrial equipment.