The rotary limit switch is produced by TER, an Italian company with over 62 years of expertise in manufacturing electromechanical components for load handling. It is present in various sectors in Brazil through ACR, which offers customized projects and specialized 24/7 technical support.
Function:
Also known as a “rotary turn counter switch,” it limits the upper and lower course position of hooks in lifting equipment and industrial doors.
Simply attach it to the shaft of the equipment to be monitored (e.g., the hoisting drum shaft) and adjust the cams to operate the switches (micro switches).
The applications of the rotary limit switch are vast, covering motion control in industrial and construction machinery, including:
Rotary limit switch for hydraulic winches,
Rotary limit switch for cable reels,
Rotary limit switch for automatic doors,
Rotary limit switch for industrial machines,
Rotary limit switch for wind turbine positioning,
Rotary limit switch for cranes,
Rotary limit switch for gantry cranes,
Rotary limit switch for port gantries,
Rotary limit switch for straddle carriers,
Rotary limit switch for RTG,
Rotary limit switch for RMGC,
Rotary limit switch for STS,
Rotary limit switch for OHBC,
Rotary limit switch for ship loaders,
Rotary limit switch for ore stackers,
Rotary limit switch for heavy-duty vehicles,
Rotary limit switch for steel mill bridge cranes,
And many other applications.
Main Features:
Reduction ratio from 1:1 to 1:8100
Cam group with up to 6 switches (precise adjustment via screws)
Switches with NC positive opening contacts for safety functions
Can be equipped with up to 3 cam groups (max. 15 switches), potentiometers, and incremental or absolute encoders.
Available with flanges, pinions, and couplings.
Differentials:
Wear-resistant materials and components, protected against moisture and dust
Resistance to extreme temperatures from -40°C to +80°C
Can be produced with special switches to allow direct motor action
Possibility of safety enhancement through the Lima device, which has two separate detection systems (non-contact) using different technologies to ensure control redundancy and meet ISO 13849 standards.
Available in Ex ATEX and IECEx versions.
