Two-Hand Safety Block G 1/8", 3/2-Way NC - Airtec SZ 18 310

The Airtec SZ 18 310 is a pneumatic two-hand safety block with G 1/8" ports and 3/2-way function (NC, normally closed). The valve only switches when both input signals 12/1 and 12/2 arrive within 0.5 seconds. It enforces two-hand operation as a basic safety signal for downstream controls.

Benefits

• Two-hand release through two separate signal inputs 12/1 and 12/2, keeping the hands out of the danger zone.
• A 0.5 second time window forces near-simultaneous actuation of both hand buttons.
• Clearing one or both signals resets the piston, and restarting requires both signals to be cleared first.
• Compact 3/2-way version (NC) with G 1/8" port as a safety signal.
• Anodised aluminium body and NBR seals for oiled and non-oiled compressed air.

Technical data

Applications

For machines and fixtures that must be started with both hands for safety reasons, such as presses and joining fixtures. The enforced two-hand operation keeps both hands outside the tool area during the hazardous working stroke.