Two-Hand Safety Block G 1/4", 5/2-Way with Self-Holding - Airtec SZS 14 510

The Airtec SZS 14 510 is a pneumatic two-hand control block for the two-handed activation of machines and fixtures such as presses. The 5/2-way valve with G 1/4" connection switches only when both input signals 12/1 and 12/2 arrive within 0.5 seconds, enforcing synchronous two-hand operation as a safety function. Cylinders up to a piston diameter of 160 mm can be driven directly.

Benefits

• Enforces two-hand operation, since a delayed or missing signal (beyond 0.5 seconds) prevents switching.
• The piston resets automatically after one or both signals are cleared, with a restart lock until both signals are cleared.
• Additional signal port 14 switches the self-holding function, so the hand buttons can be released shortly before the end of the stroke.
• Self-holding is activated by the limit switch and released again by a timer valve or a pressure switch.
• Optional two-handed or one-handed operation, or control via a foot switch.
• Anodized aluminium housing with NBR seals for oiled and unoiled compressed air.

Applications

The control block suits machines and fixtures that must be switched on with both hands but change to self-holding shortly before the end of the stroke. It can equally be used for systems that are activated with two hands, one hand, or a foot switch.