Vacuum Technology for Handling Special Glass and Display Glass

The market for displays is undergoing rapid growth. Not only are the displays getting larger and larger with an increasing number of integrated functions, but also the requirements for vacuum technology are increasing steadily. The glass is getting thinner and the coatings more complex and sensitive. From processing after raw material production, to cutting, grinding, coating and the various assembly processes, the output quantities are constantly increased.

This leads to high requirements not only for a gentle, mark free handling, but also high acceleration rates and high positioning accuracy.


Schmalz Inc.
5850 Oak Forest Drive
Raleigh NC 27616
Estados Unidos de América

Tel. +1 919 713-0880
Fax +1 919 713-0883
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Requirements for Vacuum Technology

Highforces and maximum acceleration rates
These handling processes require minimal cycle times. The glass also has to be gripped quickly and then handled safely and precisely with high acceleration rates. Schmalz’ specially designed thin glass gripper STGG has a large suction area to absorb high shear forces for fast, highly precise handling of glass.

Gentle, contamination-free handling
Any contamination of the glass – before or after the coating – significantly affects the functionality of the displays. For this reason, the grippers STGG are equipped with a contact surface made of contamination-free PEEK. The large suction area of the grippers enables a high suction force to be generated with low vacuum levels. This allows handling with low surface pressure. In addition, Schmalz offers a broad range of suction cups made oft he markless material HT1, that leaves no visiblemarks. The inner support structure oft he suction area of the suction cups SGPN makes it ideal for thin glass.

System availability and low energy costs
These handling processes require short cycle times. The compact ejector SCPSi offersan integrated suction and blow-off function. This minimizes suction and release times, as well as energy consumption. The integrated automatic air-saving function means that the ejector is only activated when vacuum is needed. In addition, the intelligent compact ejector features an IO-Link interface for reading out process data and configuring the ejector. The small size of the ejector allows it to be positioned close to the suction cup for minimal evacuation times.

Flexible handling in assembly processes
The large-area gripping systems FXP/FMP grip a large area of the glass. This generates only a low local surface pressure so that even sensitive coatings or imprints can be handled without damage. The integrated valve technology means that the grippers can handle even workpieces that are smaller than they are, allowing different glass workpieces to be gripped flexibly. The gripper FXP also offers an integrated vacuum generator based on the Venturi priciple.

Productos para los sectores de vidrio especial y para displays

Garras para vidrio fino STGG

Garras para vidrio fino STGG

  • Superficie de ventosa: 100 x 55 mm y 170 x 105 mm
  • Generación de vacío integrada o conexión para generación de vacío externa
  • Material de la superficie de ventosa: PEEK
  • Capacidad de aspiración: 31 a 235 l/min

Ventosas planas SGPN

  • Diámetro: 15 a 40 mm
  • Material: FPM, HT1, NK, SI
  • Ventosa insertada en la boquilla

Eyectores compactos SCPS / SCPSi

  • Capacidad de aspiración hasta 67 l/min
  • Máx. vacío 85 %
  • Cuerpo de plástico

Sistema ventosas vacío superficies FXP/FMP

  • Ventosa universal para el paletizado/despaletizado, preparación y clasificación automatizados
  • Dimensiones: 442 x 130 a 1.432 x 130 mm
  • Elemento de hermetizado: Esponja hermetizante, ventosa

Ventosas flotantes SBS

  • Diámetro: 20 a 120 mm
  • Fuerza retención: 2,0 a 104,0 N
  • Tampón de elastómero casi sin huellas en la cara inferior de la ventosa