Type

Max. tear off force

Advised working load

Min. advised sheet thickness

Size

Interface/connection dim's

Min./max. ambient temperature

Pneumatic grippers

Pneumatic magnetic grippers allow you to safely handle steel workpieces and plates with great speed and precision. Grippers – also known as end effectors – are ideal for speeding up or automating your production process. Durable, safe and accurate robot grippers are a reliable end of arm solution due to the bistable design.

  • Fast pneumatic switching
  • Equipped with permanent magnets
  • Robot/cobot End-of-arm-tooling
  • Lifting power: up to 110 kg
  • High-temperature versions
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Basic type Basic version, for the most common applications

3 variants
Product variant

Size : 24 mm

€ 169,00

HGR-SQ-024-FL-R-M-F
Article number TPGC024078
Stock 48
Max. tear off force 34 N
Advised working load 11 N
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Product variant

Size : 40 mm

€ 200,00

HGR-SQ-040-FL-R-M-S
Article number TPGC040078
Stock 147
Max. tear off force 230 N
Advised working load 77 N
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Product variant

Size : 70 mm

€ 249,00

HGR-SQ-070-FL-R-G-S
Article number TPGC070078
Stock 0
Max. tear off force 530 N
Advised working load 175 N
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End of arm tooling

Pneumatic magnetic grippers are ideal when you want to handle flat steel products. Automated production and assembly lines in particular are equipped with magnetic grippers. For example in machines, or as an end effector for robots. They load/unload, lift and position workpieces in CNC machines, folding machines, press brakes, punching machines or bending, laser cutting and welding cells.

 

Compressed air moves the magnetic core in the pneumatic gripper, effectively turning the magnetic field on or off. In this way, workpieces remain firmly in place, even in the event of a power failure. They also easily hold perforated plates.

 

The high-temperature magnetic grippers operate reliably in environments up to 120°C. Application examples for the high-temperature grippers are bakeries, press brakes and automotive assembly lines.


Our specialists will gladly advise you on accessories, models and applications.

Connection and operation of the magnetic gripper

The magnetic gripper switches pneumatically. You can control the air flow with a 5/3 or possibly a 5/2 valve. Goudsmit pneumatic grippers can be equipped with sensors for on/off detection and product presence detection. Other accessories include spring plungers for extra damping.

Magnetic gripper - working principle | Goudsmit Magnetics

Lifting force factors

Pneumatic grippers are designed to handle ferromagnetic products and workpieces. The achievable holding force depends on the magnetic properties and the chemical composition of the material to be handled. Compared to low-carbon steel, the holding force of magnetic grippers may be lower with other materials:

 

Material / Efficiency

  • Non-alloy low-carbon steel (<0.3% C) such as Fe 360 Fe 510: 100%
  • Non-alloy carbon steel (0.3 – 0.5% C) such as C15, C45: 80 – 90%
  • High-carbon (0.5 – 1.8% C) alloy tool steel: 70 – 80%
  • Magnetic stainless steel (ferritic, martensitic) such as AISI430: 60 - 75%
  • Cast iron (>1.8% C): 45 – 50%
  • Nickel: 10%
  • Stainless steel AISI304: 1 - 3%
  • Austenitic stainless steel such as AISI316, brass, aluminium, copper: 0%

 

In addition to the workpiece material, these factors also reduce the holding force:

  • An air gap between the workpiece and gripper. Non-magnetic surface layers such as coatings, foil, rust, dirt, but also rough surfaces lead to an air gap and reduce the holding force.
  • Contact surface. When the workpiece is in full contact with the magnetic poles, the maximum holding force is reached. With partial coverage or reduced contact, for example because the workpiece is perforated or hard to touch, the holding force decreases.
  • The thickness of the workpiece. When working with thin plates (≤1 mm), take the 'peeling effect' into account. This reduces the maximum breakaway force. In this situation, it is better to make a construction with several smaller grippers (for example 40 mm) than one or two large grippers.
  • Temperature. Both a higher ambient temperature (>30°C) and a higher product temperature (40 - 80°C) reduce the magnetic force. The high-temperature grippers are more resistant to these effects.
  • Acceleration forces. When the workpiece moves quickly, acceleration forces can negatively affect the holding force. Always ensure that the acceleration forces on the workpiece are significantly lower than the holding force.
  • Stiffness or flexibility of the load. Long or flexible loads can sag. The deflection effect on the magnet significantly reduces the holding force. Provide enough magnetic grippers at multiple gripping points to prevent sagging. Also provide a flexible suspension of the magnetic grippers to absorb the deflection.

 

Do you have doubts about the conditions and the possible limitation of magnet and holding force? Then do additional tests or contact the Goudsmit specialists.

Magnetic gripper for robot end of arm tooling | Goudsmit Magnetics

Basic type (continued) Basic version, for the most common applications

3 variants
Product variant

Size : 100 mm

€ 420,00

HGR-SQ-100-FL-R-G-S
Article number TPGC100078
Stock 30
Max. tear off force 1500 N
Advised working load 500 N
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Product variant

Size : 160 mm

€ 1.090,00

HGR-SQ-160-FL-F-G-S
Article number TPGC160078
Stock 20
Max. tear off force 3500 N
Advised working load 1170 N
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Product variant

Size : Ø20 mm

€ 204,00

HGR-RO-020-FL-R-M-F
Article number TPGC020018
Stock 19
Max. tear off force 10 N
Advised working load 3.3 N
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Friction type With vulcanized friction pad - for added grip and product protection.

4 variants
Product variant

Size : 24 mm

€ 192,00

HGR-SQ-024-FP-R-M-F
Article number TPGC024088
Stock 52
Max. tear off force 24 N
Advised working load 8 N
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Product variant

Size : 40 mm

€ 209,00

HGR-SQ-040-FP-R-M-S
Article number TPGC040088
Stock 80
Max. tear off force 140 N
Advised working load 47 N
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Product variant

Size : 70 mm

€ 270,00

HGR-SQ-070-FP-R-G-S
Article number TPGC070088
Stock 92
Max. tear off force 380 N
Advised working load 128 N
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Product variant

Size : 100 mm

€ 456,00

HGR-SQ-100-FP-R-G-S
Article number TPGC100088
Stock 0
Max. tear off force 1180 N
Advised working load 390 N
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High-temperature version Suitable for use in ambient temperatures up to 120° C

3 variants
Product variant

Size : 40 mm

€ 298,00

HGR-SQ-040-FL-RH-M-F
Article number TPGC040378
Stock 33
Max. tear off force 185 N
Advised working load 60 N
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Product variant

Size : 70 mm

€ 363,00

HGR-SQ-070-FL-RH-G-F
Article number TPGC070378
Stock 30
Max. tear off force 420 N
Advised working load 140 N
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Product variant

Size : 100 mm

€ 513,00

HGR-SQ-100-FL-RH-G-F
Article number TPGC100378
Stock 57
Max. tear off force 1200 N
Advised working load 400 N
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