GT-A22 Keyence Digital Contact Sensor Head 22 mm Air Push

GT-A22 Keyence GT Series Digital Contact Sensor Head — Air Push, 22 mm Stroke

Technical Specifications

• Brand: Keyence
• Model: GT-A22
• Category: Digital contact sensor head (LVDT displacement sensor)
• Sensor type: Digital contact LVDT displacement sensor head
• Actuation type: Air push
• Measuring range: 22 mm
• Repeatability: 8 µm at 23 °C with 100 ms response
• Measuring force (downward): 1.5 N
• Measuring force (side): 1.4 N
• Measuring force (upward): 1.3 N
• Pressure resistance: 1.0 MPa
• Applied pressure range: 0.35 to 0.5 MPa
• Fluid: Dry air
• Supply voltage: Powered by the GT series amplifier
• Output type: Sensor head connects to GT amplifier; no built-in output
• Built-in ports: None
• Protocols: None
• Operating temperature: 0 to +55 °C, no freezing
• Relative humidity: 35 to 85 % RH, no condensation
• Protection rating: IP67
• Weight: Approx. 180 g with 2 m cable

Measurement Range and Core Performance

• The GT-A22 covers a 22 mm stroke for general-purpose displacement measurement.
• Repeatability reaches 8 µm at 23 °C when the response time is 100 ms.
• The LVDT digital contact principle delivers stable readings on solid surfaces.
• This Keyence sensor head pairs with GT series amplifiers for signal conditioning.
• Air push actuation drives the contact spindle with consistent force during inspection.

Environmental Resistance and Installation Notes

• The IP67 rating protects the head from dust and temporary water exposure.
• Operating temperature runs from 0 to +55 °C without freezing conditions.
• Humidity tolerance spans 35 to 85 % RH without condensation forming.
• Mount the head downward, sideways or upward and expect 1.3 to 1.5 N measuring force.
• Supply dry air at 0.35 to 0.5 MPa and keep pressure below the 1.0 MPa limit.
• Route the 2 m cable away from noise sources to preserve measurement stability.
• Confirm the mounting orientation before setting the air pressure for the stroke.

Package Contents

• 1 × Keyence GT-A22 digital contact sensor head
• 1 × 2 m integrated cable
• 1 × protective packaging

Shipping and Support

• We ship by FedEx, UPS and DHL to most destinations worldwide.
• Orders leave our warehouse within 5 days after confirmation.
• We accept returns within 30 days under our standard return policy.
• You receive a brand new original Keyence unit with every order.

FAQ

• Q: What is the measuring range of the GT-A22?
  A: The GT-A22 offers a 22 mm measuring range for contact displacement checks.
• Q: What repeatability does this sensor head achieve?
  A: It achieves 8 µm repeatability at 23 °C with a 100 ms response setting.
• Q: Does the GT-A22 work without an amplifier?
  A: No, it needs a GT series amplifier for power and signal output.
• Q: What air pressure does the air push type require?
  A: Apply dry air at 0.35 to 0.5 MPa and stay below 1.0 MPa.
• Q: How much measuring force does each mounting position produce?
  A: Downward mounting gives 1.5 N, side mounting 1.4 N and upward mounting 1.3 N.
• Q: Is the sensor head waterproof?
  A: It carries an IP67 rating for dust and water splash protection.
• Q: What is the operating temperature range?
  A: It operates from 0 to +55 °C with no freezing allowed.
• Q: Is the product new and in stock?
  A: Yes, we offer brand new original units and hold stock for fast dispatch.
• Q: How fast do you ship and which carriers do you use?
  A: We ship within 5 days via DHL, FedEx and UPS.
• Q: Can I return the item?
  A: Yes, we support returns within 30 days of delivery.