Based on 30 years of experience, Trelleborg has developed a completely new line of lifting bags for a wide range of industrial applications. The use of high quality materials and craftsmanship in combination with stringent quality control ensures safe operation.
Trelleborg high pressure bags are capable of lifting loads up to 67 tons with compressed air at a pressure of only 8 bar. In comparison with conventional jacking equipment, lifting bags have major advantages such as the very small insertion height of approximately 3cm, fast operation, light-weight and practically maintenance-free. Typical applications include lifting, moving, spreading and fixing.
Our compressed air lifting bags operate as inflatable bags at a maximum pressure of 8 bar. They function according to the following principle: Force (F) = Pressure (P) x Area (A). So the lifting capacity is proportional to contact area. Because the contact area decreases as the bag is further inflated, the reaction force also decreases. Lifting bags are usually inflated with compressed air and in some cases with water or grout.