We offer services for the development, modernization and / or repair of control systems for crane equipment. CJSC “SI-EL” has accumulated a lot of experience in the reconstruction and modernization of equipment for all types of cranes .. Replacing obsolete and unreliable control systems with modern ones, allows improving the operational characteristics and safety of cranes, reducing the cost of spare parts. We offer the most optimal variant of works, depending on the current state of the equipment and the existing technological needs of the Customer. In our arsenal of the control system of direct and alternating current with frequency, thyristor and relay-contactor control principles.

The scope of modernization depends on many factors. It can simply be a replacement of the relay-contactor circuit for modern analogous components. Or full development of a principally new control system with a thyristor or frequency control principle with recalculation of the characteristics and options of the crane for the new technologies of the Customer.

At our own production facilities we collect equipment and test it on special stands. This minimizes the time of installation and commissioning in the field.

Electrical equipment of bridge and portal cranes, tower cranes.

The electrical part of the crane is much faster morally and physically obsolete than mechanical. That’s why, the reason for unscheduled stopping the crane is often the electrical part. Modern solutions in the field of electric drive and automation can significantly reduce the downtime of the crane, the dynamic load on the crane, reduce power consumption, make it safer and more convenient to control the cranes.

CJSC “SI-EL” offers a wide range of solutions in the field of crane electric drive by replacing individual components and / or complete replacement of crane electrical equipment including: control cabinets, cable products, cockpit / control panels, lighting / heating, electric motors, safety devices.

Modernization and repair of bridge and portal cranes.

Solutions of CJSC “SI-EL” for the modernization of cranes increase the service life of the equipment, reduce the dynamic load on the crane, reduce the cost of ownership. We make upgrades on the components of any manufacturer, depending on the preferences of the customer,

Standard scope of modernization:

  • Replacement of control systems.
  • Replacement of the cab / controls.
  • Replacement of electric motors.
  • Replacement of brakes.
  • Replacement of lighting / heating / air conditioning.
  • Replacement of safety devices.
  • Replacement of cable products.
  • Inclusion of “smart options” – anti-rocking, synchronous operation of mechanisms, positioning, “protective zones” and so on.

After the modernization, the old crane becomes practically close to the new by its functional.

Modernization of special purpose cranes.

For special purpose cranes equipped with different load handling devices, along with a “standard set” we offer the following functional equipment:

  • “Grapple automatic” – for a mechanical grab. This mode allows you to maximize the balance of the two winches, evenly distributing the load between them.
  • Magnetic stations of direct and alternating current.
  • Control stations for vacuum traverses.
  • Control systems with a spreader.
  • Control systems pratzen-cranes.
  • Control systems for special lifting devices (swivel hook, automatic traverses for rolls and others.)

Modernization of cranes for metallurgy.

Cranes for metallurgy work in heavy and very heavy mode, with increased temperature and air pollution. Reliability of control systems is subject to special requirements. Control systems for casting cranes are located in an isolated room (container) with air conditioning and filtration. When modernizing foundry cranes, it is very important to ensure reliable operation of the equipment and, in case of failure, complete the cycle. The main functions of the control system are redundant, which allows the crane to continue operating with speed limits. Improved automatic functions, such as precise cargo positioning, restricted areas, anti-pulling, synchronization of work of the main and auxiliary lifts, increase the safety level and increase the crane’s productivity.

For cranes and other special purpose cranes with a travel speed of more than 100 m / min, CJSC “SI-EL” has special solutions for selecting acceleration and deceleration mode, which increase crane productivity and operator convenience. All cabinet assemblies are designed with increased IP.