Ergonomics are important
Even if the lifts you do aren't all that heavy they can still cause you painful occupational injuries. But costly sick listing and long convalescences can be avoided by using ergonomic lifting aids. It's been demonstrated that lifts of as little as 10-15 kg can cause permanent wear on the joints. Pronomic AB has therefore set itself to come up with products that will enable the individual employee to lift things without incurring such penalties.

What you can lift
VacuHand is a tube lift that uses vacuum to take hold of the load and lift it in a single, smooth operation. With a vacuum tube lift you can deal with practically anything. Boxes, cartons, sacks, cans, plates, barrels, TV sets - it's really only your own imagination that sets any limits to what you can lift as long as the weight isn't too great. For controlling the lift the VacuHand is furnished with an ergonomically designed handle. The VacuHand can be rounded out with numerous standard accessories for easy adaptation to any job of lifting.

Frequency-controlled VacuHands
Frequency control allows the operator to choose for himself what vacuum flow the vacuum hose is to work at within a pre-programmed interval. The vacuum flow is set by means of a potentiometer located close to the workplace. Being able to set the vacuum flow increases the weight range within which the vacuum-hose lift can be used with complete safety. Earlier, the lifting of light loads with a large lift hose diameter had its risks, since the load was lifted at such acceleration that the lift was in principle uncontrolled, whereas with a frequency-controlled vacuum pump the vacuum flow and thus the acceleration can be reduced so as to achieve full control over the lift. At the same time there is also the possibility of increasing the vacuum flow to permit the lifting of poor-quality cartons. It becomes possible for all operators to adjust the vacuum flow so that they can sense when the performance of the vacuum-hose lift is at the correct level. In sizes from 45 up to 110 the VacuHand is available with a frequency-controlled vacuum pump. The pumps come in two sizes: 2.2/4.0 kW and 4.0/5.5 kW. The rating 2.2/4.0 kW means that the electric motor has a nominal wattage of 2.2 kW but that the frequency control permits overrunning up to 4.0 kW, while 4.0/5.5 means that the electric motor has a nominal wattage of 4.0 kW but that the frequency control permits overrunning up to 5.5 kW. The electric motors have built- temperature sensors which shut off the frequency control if the temperature goes too high. The vacuum pumps are available with frequency control built on or alternatively with separate frequency control that is incorporated into an electrical cabinet on the wall.

Easy to use
The control is simple to handle and the vacuum tube lift suits itself smoothly to your own bodily movements as if the load were weightless. Using a swivel or an angle joint you can rotate or tilt the load just exactly as you like. And switching grippers is a simple job with our quick-fit coupling.

Safety
The suction foot is always dimensioned so that the grip on the load is at least two and-a-half times the lifting force. That rules out the risk of dropping the load. If the weight is too much the VacuHand simply declines to lift it, so that both the load and the user are at less risk of coming to any harm. Should the vacuum pump stop running, the check valve sees to it that the vacuum is retained anyway, enabling you to put the load down under full control.

Power source
As normally supplied, the VacuHand comes with an electric vacuum pump, but pneumatic vacuum pumps are available if needed. The VacuHand is usually carried by a slewing crane or an overhead travelling crane.