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ASO GmbH develops and manufacture self-assembly and customer specific safety edges. Product catalog also includes standard sized and customer specific safety bumpers and mats. ASO was established in Salzkotten Germany in 1984. From the beginning their mission has been to improve safety in automation by developing, manufacturing and testing innovative safety edges, safety mats and safety bumpers.

ASO Safety contact edges are available either in pre-made measurements or for self-assembly.  Self-assembly has been made easy with Plug’N’Sense System. Contact edges with continuous selection of profile sizes with and without sealing lips and various base options, fitting for most mounting profiles. Also available with logo printing.

  • Max. delivery length: 25 m
  • Max. length of several contact edges: 100 m
  • Max.  series connection of the contact edges: 5
  • Switching cycles: min. 10 000
  • Enclosure: IP 65 (IP 68 on request)
  • Operating temperature: -10 °C … +50 °C
  • Measurements and value figures according to DIN EN ISO 13856-2.

The max. number of connected bumpers are 5 and the total length of the system must not exceed 25 m. One-line end connected to the safety evaluation control electronics and the other end with a terminating resistor (factory-made). The electronic monitor the whole circuit, including sensor and terminating resistor (8,2kΩ). ASO Safety’s own safety relays can be used e.g. ELMON rail 41-322.

  • Standard sizes (W x H):
    • 60 mm x 100 mm
    • 100 mm x 200 mm
    • 150 mm x 300 mm 
    • 200 mm x 400 mm
  • Length: min. 150 mm and max. 3000 mm
  • Switching cycles: min. 10 000
  • Connection: 0,12 m M8 male/female plug end of the bumpers
  • Standard colors: black or black-yellow striped
  • Material: artificial leather or NBR
  • Angle of activation: ±45°
  • Enclosure: IP 54
  • Operating temperature: ±0 … +55°C

The basic construction of the ASO Safety Contact Mat consist of two conductive plates which are separated by a proprietary isolating layer. A single compound polyurethane material assures impermeability against oils, water and dirt. An anti-slip surface is also implemented into the design.


  • Standard sizes:
    • 750 mm x 1000 mm
    • 1000 mm x 1000 mm
    • 1500 mm x 1000 mm
  • Max. size: 2350 mm x 1350 mm
  • Height: 14 mm
  • Response time: < 25 ms
  • Switching cycles: min. 1 000 000
  • Enclosure: IP 65
  • Operating temperature: -10°C … +55°C
  • Actuation force: Ø 80 mm / n. 150 N
  • Static load: max. 2000 N yli Ø 80 mm
  • Connection: 2 x 0,12 m M8 male/female plug

For more information

Juuso Lehto

0400 131348