Since 1984, Stemm has designed and manufactured a wide range of grapples, clamshell grabs and other types of grabs and tongs for many different sectors, including the iron and steel, marine, crane, overhead cranes and cement industries and the environmental sector.

All STEMM equipment is manufactured in accordance with ISO 9001/2008 international standards and, therefore, complies with applicable UNE-EN standards. The regulations of Directive 98/37/EC and standard EN-292 are also met. Our equipment and machinery is designed and calculated in line with the FEM (European Materials Handling Federation) guidelines in FEM 1001 Section I: 1998 relating to the calculation rules for heavy lifting and handling equipment.

All STEMM products are based on the following concepts:

STRUCTURAL STRENGTH.
ELECTRIC AND HYDRAULIC POWER FOR CORRECT PENETRATION AND DRAGGING.
LOW MAINTENANCE.

The engineering department collaborates and provides support throughout projects, as well as studying new and old facilities with the aim of introducing manual, automatic or semi-automatic processes.

Stemm - Model 11.0009 - Mechanical Automatic Bale Tong Brochure