Conveyor safety protection switches are available from VSK now.

Thermo Scientifc Ramsey conveyor protection switches monitor your conveyors, equipment, and processes. Using our conveyor protection switches to prevent accidents, protect equipment, and reduce unscheduled shutdowns helps to keep your profts and production at their highest levels.

Belt Misalignment Switch / ROS-2D
Ramsey Belt Misalignment switches are conveyor safety accessories designed to interlock with the conveyor shut down systems in the event of conveyor belt misalignment.  They are mounted in pairs, one on each side of the belt with the roller actuator arms positioned approximately one inch from each side of the belt.  In the event where the conveyor belt tracks off the idlers in either direction it will cause the roller actuator arm to move, tripping one or both micro switches inside the switch.  There are two independent micro switches inside the enclosure, one for alarm annunciation (set at 10 degrees) and the other for shut down (set at 20 degrees) from the original position.  This simple system will protect conveyor belts from costly repairs and downtime due to belt misalignment.  The Ramsey Belt Misalignment Switch can be ordered in standard and CE approved versions.

Pull-cord Switch /  SPS-2D

Tripper Position Switch / TPS-2D

Under Speed Switch / Model 60-23P

Monitor the rotational velocity of a shaft or other rotating equipment within your industrial applications with the Thermo Scientific Ramsey Model 60-23P Under Speed Switch. The Ramsey Model 60-23P Under Speed Switch is single-piece construction with no separate control unit. It is ideally suited for a wide variety of industrial applications where the need to monitor under speed or slippage conditions exist.

The Ramsey Model 60-23P Under Speed Switch Features:
Non-contacting, proximity-type detector, which provides longer life and lower operating costs
Two-bolt mounting for simple installation
Single piece construction with no separate control unit
Easy setup and troubleshooting
Rugged housing: weather-tight, polyammide/fiberglass, sturdy, lightweight
No moving parts and longer trouble-free life
Alarm/delay: 10-second delay while rotating equipment reaches operating speed
Alarm to normal delay assures notification when speed drops below adjustable set point

The Ramsey Model 60-23P and 60-23PX Under Speed Switches provide a low-cost, dependable, versatile and simple means of monitoring the rotational velocity of a shaft or other rotating equipment. The Model 60-23P features one-piece unitized construction. The electronics and output contacts are housed in the same unit with the detector.
Only two bolts are required to mount the unit. The non-contacting proximity-type detector has no moving parts. Once the simple installation is completed, the device is virtually maintenance-free.
Two 10-second time delays add important benefits to the package. The first delay prevents nuisance alarms. The second
delay accommodates an alarm to normal condition after the under speed status has been corrected.
The under speed switch is housed in a gasketed weather-tight polyammide/fiberglass enclosure (allowing exposure to harsh environments), or a cast aluminum NEMA 9 enclosure for explosion-proof applications. The unit is ideally suited for a wide variety of industrial applications where the need to monitor for under speed or slippage conditions exist. It may be used on conveyor belts, bucket elevators and other types of rotating equipment.
Operation
The Model 60-23P Under Speed Switch monitors speed by sensing a ferrous element attached to the rotating shaft or equipment. The detector generates impulses from the ferrous element and closes alarm contact when the time between impulses is greater than the time adjusted by the setpoint. The unit operates on the number of impulses received rather than actual revolutions. Low speed range may be enhanced by increasing the number of ferrous elements on the rotating shaft.

Recommended for:
Conveyor belts
Bucket elevators
Other types of rotating equipment
Industrial applications

Thermo Scientifc Ramsey conveyor protection switches are used for position information, control signals, and to identify potentially hazardous situations with your process equipment. When hazardous situations occur they activate alarms to stop
your equipment. This keeps your personnel safe and limits damage to your equipment.

These conveyor protection switches utilize a rugged heavy duty design. They are built to last, providing many years of dependable service. The modular design of the base unit provides added convenience for installation and maintenance. Numerous options allow you to pick the right switch to fit your applications.

Use the conveyor protection switches to protect your conveyor in even the most challenging applications.