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Collision Sensors for Arc-Welding


QuickSTOP™ is a dynamically variable collision sensor that operates on air pressure.
Upon impact, the air chamber is opened, and the shutdown signal is immediately sent to the system controller.


• Dynamically Variable Trip Points
o Programmable sensor at all speeds of operation
• Permanent Repeatability
o Non-compressive, metal-to-metal seal
• Senses Angular and Compressive Forces
o Protection in the X, Y, and Z axes
• Monitors Performance Readiness

Datasheet3D DrawingModelCompliance angleAxial compliance
Rotary complianceTorque trip point*
Mx, My
Torque trip point
Repeat accuracy
X and Y
Rotational repeatabilityAverage response time**Weight
QS-100-AW±5°4.50 mmno limit4.1 – 20.3 Nm5.3 – 30.4 Nm± 0.025 mm±0.024°4-7 ms0.45 kg
QS-AW±5°5.20 mmno limit5.9 – 32.4 Nm7.5 – 45.2 Nm± 0.025 mm±0.024°4-7 ms0.68 kg
QS-400-AW±5°6.60 mmno limit11.3 – 63.9 Nm11.8 – 84.6 Nm± 0.025 mm±0.024°4-8 ms1.30 kg
QS-800-AW±5°9.30 mm± 2536.0 – 158.0 Nm53.0 – 255.0 Nm± 0.025 mm±0.029°4-8 ms3.72 kg

* Torque Trip Points are Continuously Variable.
** Average Response Time varies with Air Pressure and Speed of Impact.
Ambient temperature 0 - 70 °C (From QS-100-AW to QS-400-AW) / 0 - 100 °C (For QS-800-AW)
Rotational Repeatability at Tool Mounting Surface Z:  ± 0.013 mm
Sound emissions (sound pressure) ≤ 70 db (A) in each direction

The dimensions are indicative and susceptible to changes due to technical improvements. We reserve the right to make changes without notice.


Normal Operation - Positive Air Pressure

Switch Information
High reliability aircraft snap acting type.
UL/CSA rated at 3 amps, 120 VAC.
Average mechanical life: 7 million cycles
UL recognized rating: 42.4 VDC Max., 3 amps Max.

On Impact - Loss of Air Pressure