Ramsey Protection Switches

Ramsey Belt Misalignment Switch

This belt misalignment switch is used to monitor the position and tracking of conveyor belts. It is mounted on the conveyor structure and adjusted so the roller arm is the proper distance and angle from the outside edge of the belt. When a belt drifts out of alignment it contacts the roller actuator arm whichrotates the actuation shaft, causing the belt misalignment switch to send an alarm signal.housing. Each cam actuates an independent SPDT micro-switch for alarm signals. The first micro-switch actuates with a 10° rotation of the actuation shaft for a warning alarm signal, allowing operators to address the situation before it becomes a problem. The second micro-switch actuates with a 20° rotation of the actuation shaft for a shut downalarm signal in order to prevent or minimize equipment damage. The roller arm has internal stainless steel bearings. Thisallows the switch to be used on conveyors with belt speeds up to 1250 feet per minute with outstanding service life.

Ramsey Safety Cable Pull Switch

This safety cable pull switch is used as an emergency shutdown device for conveyors or other equipment. They meet OSHA and MSHA requirements for safety shutdown devices.Safety pull cables are attached to the actuating arm of the switch. When force is applied to the pull cable it rotates the actuating arm and actuating shaft. At a 20° rotation the switch enters a tripped and locked position. The actuating shaft has two cams inside the housing. Each cam simultaneously actuates an independent SPDT micro-switch for shutdown and alarm signals.The safety cable pull switch has one housing layout that may be used interchangeably in mid-run or end-run positions of the safety pull cables.Standard safety cable pull switches include a manual reset lever. This lever keeps the switch locked in an alarm conditionuntil it is manually reset by an operator.

Ramsey Tripper Position Switch

This tripper position switch is a heavy duty limit switch. It is often used to indicate the position of a tripper on a conveyor with multiple discharge points. However, it can be used anywhere you need an extremely heavy duty limit switch with physical activation.The actuating arm of the tripper position switch uses a large Acetal contact roller, 3 in diameter by 1.75 in wide. When the roller makes contact it rotates the actuation shaft which has two cams inside the housing. Each cam actuates an independent SPDT micro-switch for position or alarm signals.The switch can be ordered with an option where one of the SPDT switches is actuated with clockwise rotation and the other SPDTswitch is actuated with counter-clockwise rotation. This allows you to identify which direction the switch is activated from.

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