Hoist Side Pull

The Crane Sentry® Hoist Side Pull is manufactured and marketed by Laser-View Technologies for detecting side pulling in industrial applications. Hoist Side Pull Detection is capable of detecting excessive side pull on a wire rope hoist or chain hoist. It can be used to alert the operator of the condition or disable functions.

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Reasons For Side Pull Detection

1. Damage to Hoist

Most standard hoists are not engineered to handle side pull load

2. Personnel Injury

Injury is possible if the load shifts once it is lifted from its resting place on the floor or a staging fixture

3. Damage to Equipment

Damage to nearby equipment is possible once the load shifts after it is lifted

Wire Rope Hoist Side Pull Solutions

  • Solid state side pull detection system consists of an assembly that mounts to the wire rope
  • Mount assembly to the dead end (fixed end) or around the equalizer sheath
  • Install on single or double reeved hoists
  • Adapts to a range of wire rope diameters
  • Controls mount to the hoist or trolley and provide an intuitive menu driven interface
  • One button zero feature
  • Sets limits, timing, hysteresis
  • Built in error logging (time and date); last 5 events

Chain Hoist Side Pull Solutions

  • Solid state side pull detection system consisting of a wireless battery operated sensor that mounts to the load block
  • No cabling between sensors and hoist body
  • Slim design that mounts to the load block
  • Control system that mounts to the hoist body
  • Omni-directional (combination of X and Y) model available
  • One button zero feature
  • Set limits, timing, hysteresis
  • Built in error logging (time and date) that displays the last 5 events

Why Use Crane Sentry® Hoist Side Pull?

  • Usage of hoists for lifting loads in industrial applications has inherent risk, requiring the need for safety precautions
    • If a load is not lifted directly vertical and is permitted to side load a hoist, referred to as “side pulling”
    • Side pulling can damage to the hoist, injury to personnel, and/or damage to nearby equipment
    • Detection of potential side pull conditions can be tied into hoist controls to not permit a lift under this condition
  • Side pulling a hoist is not permitted by OSHA regulations under most conditions
  • Many hoists installed in industry do not have any form of side pull protection installed

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Crane Sentry® Hoist Side Pull Specifications

Control Specifications
Power Requirement 0.5 A @ 110 VAC
Number of Outputs 2
Relay Output Type SPST NO/NC; rated for 100k operations at max load
Rated Current 8A max per output
Rated Voltage 250 VAC
Graphic Display Type STN LCD, Backlight Illumination, 2 line display
Operating Temp (Control Box) 0ºC to 50ºC
Storage Temp -20ºC to 60ºC
Memory Backup 7 years typical at 25ºC
Ingress Protection IP65
Enclosure Material Polycarbonate


Sensor Specifications
Max Measuring Range +/- 90º per axis
Measuring Axis Output = Omnidirectional (combination of X and Y)
Operating Temp -40ºC to 85ºC
Ingress Protection IP67
Sensor Assembly Fits wire ropes sizes 5-12mm “B1” / 12-20mm “B2”