For over 25 years we are working as a sales representative for Gosan

For over 25 years we are working as a sales representative for Gosan S.A. which is located in Spain. We are the sole distributor of Gosan for the Netherlands and Belgium. Gosan manufactures various types of sheaves, couplings and hook blocks.

  • Leading Manufacturer of custom Sheaves and Hookblocks in Europe
  • More than 40 years of experience
  • 97% of Export rate in over 60 countries Worldwide
  • Manufacturing plants in Europe and the U.S.

AGBS Couplings
The AGBS barrel couplings for drums, designed by GOSAN, are used in hoisting gear of cranes to join the wire drum and the output shaft of the gearbox.

When the output shaft of the gearbox is rigidly fixed to the cable drum a statically indeterminate situation is produced, thus making it difficult to obtain perfect alignment and levelling in assembly. Assemblies of this type require to carry out major adjustments, since the lack of alignment would induce the transmission elements to malfunction. Possible errors and inaccuracies in the assembly and balancing of the coupling, as well as the distortions in the structure, wear in the bearings etc, all create additional forces which, jointly with alternating forces, produce breakages due to fatigue and damage in the bearings and gears.

The barrel couplings for drums are designed to avoid the presence of high bending moments and to compensate for misalignments, and also to absorb axial displacement. It is equipped with a self-aligning bearing on the other end of the drum shaft which is fitted to withstand the axial forces.


Hook blocks for lifting gear
Gosan has developed a new series of blocks and tracks in accordance with the latest requirements and techniques FEM 1001 and DIN STANDARD 15020. Safety when faced with breakage is in all cases greater than that required by FEM standards. The suspensions (hook, cross-axle, nut) correspond to DIN standards15411. The hooks correspond to DIN standards 15401 and 15402 and are made of forged steel, grade StE355 (class P, regulation DIN STANDARD 15400). Alloy 34 Cr Mo 4, 34 Cr Ni Mo 6 y 30 Cr Ni Mo 8 (classes S, T, V) can be used if required.  All the hooks are equipped with a safety bolt to prevent their escaping from the sling. They can be fitted with an anti-spinnnig system which is easily attached without the use of tools; this keeps the hook steady.

The pulleys are made of rolled steel, designed and built by GOSAN, and are fitted with double cylindrical roller bearings, perfectly located with special retainers. These bearings are greased by means of lubricating points, one for every pulley, located on the end of the axle and duly protected from any possible knocks. Special attention is paid to the shape of the throat when constructing the pulley. The bottom radius (DIN 15601 (r=0.525 d)) greatly extend the life of the cable, which will reach its maximum if the cable is properly placed in the pulley throat. Pulleys with the throat tempered will give an additional life extension to the cable and are available upon request. The distance between pulleys (blocks and tackles of four or more pulleys) is very small due to the type of bearings used

hookblock 3

Wheels are generally made of hardened and tempered 42 CrMo4 alloy steel. Wheel rolling face is induction hardened to reach a 400 to 450 HB hardness or higher, and depth higher than 8 mm. Hardening treatment is guaranteed to show no discontinuance throughout the wheel rolling surface. Motor shaft sizes and rolling surface widths can be modified to suit Customer´s requirements.

Wheels 1