Suction cup nozzle fittings

Suction cup nozzle fittings

Products

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Suction cup nozzle fittings

Suction cup nozzle fittings

Spring systems, extensions, nozzle inserts, automatic shut-off valves, non-return valves …

Applications

This fittings are designed for installations with a large number of suction cups connected to the same vacuum generator (vacuum chamber technology), in particular for cases where there may be objects missing from the layer of objects to be handled. Using the nozzle inserts limits the loss of flow rate and allows for the optimization of the vacuum generator.

Caution: This type of inserts is not compatible for applications in dusty environments.

Specifications

Supply: Non-lubricated filtered air, 2 to 6 bar
Temperature: 0 to 60°C / 32 to 140°F
Contact output: PNP all-or-nothing NO or NC, adjustable hysteresis
Anti-parasite function: Integrated with LED display LED
Blow-off rate: Adjusted by flow restrictor

Mechanical feelers, PMG2 series

Mechanical feelers, PMG2 series

Products

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Self-regulating vacuum pumps (electric vacuum and blow-off control), GVMAX E1 series

Mechanical feelers, PMG2 series

Spring systems, extensions, nozzle inserts, automatic shut-off valves, non-return valves …

Applications

The PMG2 series mechanical feelers are mounted on VP series flat suction cups, diameter 30 to 60mm, in all types of material (group 2 suction cups). The mechanical feeler protrudes beyond the suction cup, thus blocking off the vacuum route. The feeler is activated by the object, causing it to open and free the route for the vacuum.

Advantages

Simple to install and operate

  • Very efficient airtightness for non-covered suction cups
  • Little risk of marking delicate objects, as the feeler has a rounded surface

Flow rate

No leakage if all the suction cups are correctly placed. This represents substantial savings in power with regard to the vacuum source: pneumatic ejector or electric vacuum pumps.

Accessories

Material

  • Body: Nickel-plated brass
  • Spring: Stainless steel
  • Feeler: Delrin brass
Axial ball-joints, IMU series

Axial ball-joints, IMU series

Products

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Axial ball-joints, IMU series

Axial ball-joints, IMU series

Spring systems, extensions, nozzle inserts, automatic shut-off valves, non-return valves …

Applications

The IMU series axial ball joints are recommended for the handling of rounded or rotating products.
Mounted on a flat suction pad they transfer more force than a bellow s suction pad.
The vacuum connection is axial and sealing is ensured by a special seal always in contact with the spherical articulation.
The suction pad installed over the axial ball joint is free to rotate on its axis around 360° and can incline up to 15°
The ball joints are completely produced in copper excepting the spherical part which is in stainless steel.

Accessories

Compact spring systems, TS11 series

Piloted safety valves, CSP series

Piloted safety valves, CSP series

Products

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Piloted safety valves, CSP series

Piloted safety valves, CSP series

Spring systems, extensions, nozzle inserts, automatic shut-off valves, non-return valves …

Applications

The CSP series safety valve is a useful safety device. In the event of loss of vacuum or emergency stop it maintains the vacuum in the suction cup. Release is obtained by connecting the ancillary coupling to the pressure.

Mounting

  • One safety valve per suction cup
  • Blow-off pressure, minimum 5 bar

Material

  • Valve: Nitrile (NBR)
  • Body: Anodized aluminium
  • Filter: Stainless steel screen, 200 microns
Foam strips, BM series

Foam strips, BM series

Products

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Foam strips, BM series

Foam strips, BM series

Spring systems, extensions, nozzle inserts, automatic shut-off valves, non-return valves …

Applications

The foam ring is designed for gripping products with an uneven or ridged surface, e.g.:

  • Sawn wood, sheet metal, flat surfaces with bumps or hollows.
  • All granular surfaces to which suction pads cannot adhere correctly and are therefore not airtight.
  • COVAL offers two types of foam strips: the BM series rolls and the VSBM series ring version.

Mounting

The foam rings are mounted by bonding. In all cases, this should be carried out in our factory as we have the adhesives adapted to the materials. It is essential that silicone bonding be carried out in the COVAL factory.

Material

  • Nitrile( NBR – Black): 5 or 10mm thick, depending on the diameters of the suction cups.Good resistance to oil. The nitrile foam strip can only be glued to nitrile suction cups.
  • Silicone (SI – White): 2 or 5mm thick, depending on the diameters of the suction cups. Heat-resistant up to 160°C (320°F), does not leave marks on products handled. Do not use the silicone foam strip for gripping products before painting or lacquering.

The silicone foam strip can only be bonded onto silicone suction cups (bonding is guaranteed if it is carried out in the factory).

Flat suction cups, VPU series

Flat suction cups, VPU series

Products

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Flat suction cups, VPU series

Flat suction cups, VPU series

Generic replacement suction cups – COVAL QUALITY – A certain number of our clients have sometimes used other suction cup brands adapted to their applications. In order to satisfy their needs, COVAL has developed a range of generic suctions cups which are 100% compatible to their applications.

Dimensions

Ø 6 to 50 mm

Materials

3 standard materials:

  • NBR: Black nitrile
  • SI: Translucent silicone
  • STN: Siton®