Pronal Low pressure lifting actuator

For applications requiring low lift forces and therefore low inflation pressure, Pronal offers lifting bags made of Polyurethane (PU) material.

Due to the manufacturing process – high frequency welding – they can be designed in various shapes so they can be easily installed in all types of machines.

Those lifting bags are very thin (2-3mm) and can therefore be integrated in very narrow spaces for “soft” applications.

 

Technical information

Low pressure lifting bags are made of PU and welded by high frequency welding process.

  • Elasticity / flexibility (even at very low temperatures – min. -50°C)
  • Good abrasion resistance
  • Highly resistant against hydrocarbons

High frequency welding

  • No limit of dimensions
  • Up to 0.5 bar (7.25 PSI) working pressure

Inflation accessories:

gonflage vérin

Threaded stem for inflation fittings 1/4″ or 3/4″

Polyurethane hoses - Industrial lifting bags

PU Inflation Hoses

Schrader valve

Schrader valve

 

 

 

 

 

 

 

Miscellaneous:

velcro_web

Maintaining Velcro

Lifting bag - Threaded fixation insert

Threaded fixation insert

Skirt for easy installation

Skirt for easy installation

 

 

 

 

 

Pronal can manufacture several bag shapes such as:

Cubical

Cubical

Circular

Circular

Parallelepiped

Parallelepiped

Cylindrical

Cylindrical

3D doughnut

3D doughnut

Flat doughnut

Flat doughnut

 

 

 


Other shapes on request.

  • 0.2 bars max working pressure for bags made of PU sheet (no fabric reinforcement)
  • 0.5 bars max working pressure for bags made of PU coated fabric
  • Clamping layers of composite during ski manufacturing process
  • Sealing of jars during powder product filling
  • Pushing of car roof during gluing operation
  • Sealing of bigbag
  • Work using a high stroke lifting bag
  • Grinding arm guiding
  • Guide a fabric

Gallery:

Pronal low pressure lifting bags implementation: