GT2-A50 Keyence Digital Contact Sensor Head – Air Push, 50 mm Stroke
The GT2-A50 is a high-accuracy digital contact sensor head from the Keyence GT2 series. It uses the Scale Shot System for absolute measurement. No tracking error occurs after power loss. The air push type delivers a long 50 mm stroke. This sensor suits inline inspection, thickness checks, and position feedback in automated lines.
The GT2-A50 connects to a GT2 series amplifier via an M8 connector. It provides 0.5 µm resolution and 3.5 µm indicated accuracy. The IP67 rating supports use in dusty or wet areas. Dry air drives the push mechanism. The sensor operates from 0 to +55 °C.
Oiltech Controls supplies this sensor head with verified testing and global shipping. Contact us for lead time and stock status.
Technical Specifications – GT2-A50
| Brand | Keyence |
| Model | GT2-A50 |
| Series | GT2 series |
| Module type | Digital contact sensor head, air push type |
| Detection system | Scale Shot System, absolute (no tracking error) |
| Measuring range | 50 mm |
| Resolution | 0.5 µm |
| Indicated accuracy | 3.5 µm (p-p) |
| Measuring force (downward) | 3.2 N |
| Measuring force (side) | 2.8 N |
| Measuring force (upward) | 2.4 N |
| Sampling cycle | 1 ms |
| Frequency response | Not specified; 1 ms sampling supports fast inline checks |
| Sensitivity | 0.5 µm resolution; stable at low measuring force |
| Linearity | Included in 3.5 µm (p-p) indicated accuracy |
| Operation indicator | 2-colour LED (red, green) |
| Fluid used | Dry air |
| Pressure resistance | 1 MPa |
| Applied pressure range | 0.25 to 0.50 MPa |
| Built-in ports | None |
| Protocols | None |
| Communication expansion | None |
| Supply voltage | Powered by GT2 series amplifier |
| Power consumption | Not available |
| Output type | Sensor head; connects to GT2 amplifier via M8 connector |
| Operating temperature | 0 to +55 °C (No freezing) |
| Storage temperature | Not available |
| Relative humidity | 35 to 85 % RH (No condensation) |
| Protection rating | IP67 (IEC) |
| Dimensions (H×W×D) | Not available |
| Weight | Approx. 405 g (excluding cable) |
| Lifecycle | Active; official Keyence production status confirmed (Last verified: 2026-09) |
Installation Guide
- Mount the GT2-A50 in downward, side, or upward orientation. Measuring force changes with orientation.
- Use dry air only. Keep pressure between 0.25 and 0.50 MPa.
- Do not exceed 1 MPa pressure resistance.
- Connect the M8 connector to a compatible GT2 series amplifier.
- Protect the cable from sharp edges and repeated bending.
- Keep the sensor within 0 to +55 °C. Avoid freezing and condensation.
- Maintain 35 to 85 % RH. Do not allow water ingress beyond IP67 conditions.
Commissioning and Maintenance Convenience
- The absolute Scale Shot System needs no zero reset after power cycles.
- The 2-colour LED gives quick pass/fail status at a glance.
- 1 ms sampling cycle supports fast tuning on moving parts.
- Air push design reduces wear on the measuring mechanism.
- Clean the push rod with dry air. Do not use solvents.
- Check air pressure and cable condition during scheduled downtime.
Compatibility Notes
- Works only with Keyence GT2 series amplifiers.
- Uses an M8 connector for amplifier link.
- No built-in communication ports or protocols.
- No expansion modules for this sensor head.
- For obsolete GT2 systems, Oiltech Controls can verify amplifier match before shipment.
Certification Information
- Protection rating: IP67 (IEC).
- Keyence official production status confirmed.
- No additional certifications listed for this sensor head.
- Oiltech Controls performs technical verification before shipment.
Packing List and Warranty
- 1 × Keyence GT2-A50 digital contact sensor head.
- M8 connector cable (as supplied).
- 12-month warranty from Oiltech Controls.
- Shipping by FedEx, UPS, or DHL.
Typical Application Scenarios
- Inline thickness measurement of metal sheets and plastic films.
- Position feedback on pneumatic presses and assembly jigs.
- Go/no-go checking of small machined parts.
- Wear measurement on tools and dies.
- Height verification in automotive component lines.
- R&D test benches needing 0.5 µm resolution.
Diagnostic Capabilities
- 2-colour LED shows sensor status and signal condition.
- Absolute system detects scale position without tracking error.
- 1 ms sampling helps catch fast faults in cyclic motion.
- Amplifier side may show error codes; refer to GT2 amplifier manual.
- Oiltech Controls tests each unit before shipment.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support by FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on this product.
- Technical verification before shipment on every order.
- Support for obsolete control systems and legacy GT2 setups.
FAQ
Q: What amplifier does the GT2-A50 need?
A: It needs a Keyence GT2 series amplifier.
Q: Does the GT2-A50 lose position after power off?
A: No. The absolute Scale Shot System keeps position data.
Q: What air pressure does it use?
A: Use dry air at 0.25 to 0.50 MPa.
Q: What is the resolution?
A: 0.5 µm.
Q: What is the indicated accuracy?
A: 3.5 µm (p-p).
Q: Is the GT2-A50 waterproof?
A: It has IP67 protection. Do not submerge it beyond rated conditions.
Q: How fast does it sample?
A: Every 1 ms.
Q: What is the warranty?
A: 12 months from Oiltech Controls.
Q: How do you ship?
A: We ship by FedEx, UPS, or DHL.
Q: Can you help with obsolete GT2 systems?
A: Yes. We support obsolete control systems and verify compatibility before shipment.
Contact Information
Email: info@oiltechcontrols.com
Phone/WhatsApp: +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
Reviews
There are no reviews yet.