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Why use lift-assist equipment for bags?
25, 40 and 50 kg raw material bags are lifted hundreds of times per shift: emptied into mixers, stacked on pallets, taken off conveyors. Constant manual lifting causes back pain and spinal injuries, and output drops towards the end of the shift. Many plants also struggle to staff this job.
With a bag lift assist, the operator only guides the load while vacuum or compressed air does the lifting. Any operator can do the job, the pace stays steady all shift and bags are not torn by rough handling.
Common bag types and the right way to lift them
| Bag type | Characteristics | Recommended solution |
|---|---|---|
| PE bags, laminated plastic bags | Airtight, flat surface | Vacuum tube lifter, flat bag foot |
| Multi-wall kraft paper bags (cement, powder) | Slightly porous, edges tear easily | Vacuum tube lifter with wide foot and high flow |
| 50 kg sugar or salt sacks | Heavy, fine granules | Vacuum tube lifter or stainless sack gripper (food, cleanroom) |
| 25 kg plastic pellet bags | Round pellets, bulging bag | Vacuum tube lifter with curved foot |
| Woven PP and mesh sacks | Not airtight | Pneumatic sack clamp gripper |
| Small bulk bags, plastic liners | Soft and light | Pneumatic vacuum sack gripper or Lifts All |
Bag handling equipment supplied by FullSharp
1. Vacuum tube lifters
The tube both grips and lifts: the pump grips the bag, the tube contracts to lift and releases to lower. Typical capacity is 25–70 kg and it is the fastest option. FullSharp offers FULLSHARP vacuum tube lifters and ANVER ergonomic lifters (USA); see also vacuum tube lifters.
2. Pneumatic vacuum sack grippers
Plant compressed air generates the vacuum, no electric pump needed – ideal for low ceilings and cleanrooms. See pneumatic vacuum sack gripper.
3. Pneumatic sack clamp grippers
Mechanical jaws wrap around the bag for woven, mesh or porous sacks that cannot be vacuum lifted. Stainless versions are available for food and pharma. See pneumatic sack clamp gripper.
4. Support structures: jib cranes, rails, mobile bases
The lifter or gripper hangs from a jib crane, aluminum or steel rail system or a jib crane on a mobile base that can be moved around the plant.
How to choose bag lifting equipment for your line
- Bag weight and size: determine the tube diameter and the foot type.
- Bag material: airtight bags are vacuum lifted, porous bags are clamped.
- Cycle rate: above 3 bags per minute, choose a vacuum tube lifter.
- Pick and place points: pallets, conveyors, mixer hoppers – these set the jib reach or rail length.
- Environment: cleanroom and food plants suit stainless, pneumatic tools; where no compressed air is available, use an electric pump.
Real projects installed by FullSharp
Equipment in operation (videos)
Frequently asked questions
How much can a bag vacuum lifter lift?
Typically 25–70 kg with a vacuum tube lifter; a pneumatic sack clamp gripper handles 25–50 kg bags depending on the configuration.
Can damaged or mesh bags be vacuum lifted?
Not reliably, because vacuum is lost. FullSharp uses a pneumatic sack clamp gripper in that case.
Can cement paper bags be vacuum lifted?
Yes, with a wide foot and a high-flow pump to compensate for air passing through the paper.
Can one lifter handle both bags and cartons?
Yes. Many projects use quick-change feet to switch between bags and cartons in seconds.
What if there is no compressed air?
Use a vacuum tube lifter with an electric pump; pneumatic versions need a 6 bar air supply.
Send FullSharp the bag type, weight, bags per hour and a layout of the pick and place points. Our engineers will survey your line and propose the best solution.