
The AirTAC Airtac DMSGS Electronic Sensor DMSGS-020 is a genuine DMS magnetic position switch. It senses the magnet ring in a pneumatic cylinder's piston and signals when the piston reaches that point, giving a 2-wire output on 10-28 V DC with a 2 m flying lead. It only works on a cylinder that carries a piston magnet.
The DMSGS-020 is an AirTAC DMS-series electronic (solid-state) magnetic position switch in a 2-wire configuration. It clips into the sensor groove of an AirTAC cylinder and signals when the piston carrying the factory magnet option slides past. Supply is 10-28 V DC, the general type is rated IP64, and this version is wired with a 2 m flying lead.
A solid-state element does not bounce, so it suits fast, repetitive cycling where a mechanical reed contact would wear. The G profile letter sets the cylinder-groove fit, and the trailing S in the model code is a factory variant we will confirm from the datasheet - send your cylinder series so we can verify the exact match.
| Model | Airtac DMSGS Electronic Sensor DMSGS-020 |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | 2-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | 2 m flying lead |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | G (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
2-wire versions run 10-28 V DC; NPN / PNP 3-wire versions run 5-30 V DC. IP64 as standard. Order the RW version where coolant, washdown or constant cable flexing is present. Switching distance, response time, current rating, voltage drop, LED behaviour, contact life, weight and dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| G | Profile letter: the mounting / groove type that fits a particular cylinder body. This family offers E, G, H, J. It is a fit code, not a performance grade. |
| (blank) | Output: 2-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| 020 | 2 m flying lead. 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| (blank) | Standard version. |
We do not hold the full profile-to-cylinder-series table, so confirm the profile letter against your cylinder model before ordering — send us the cylinder part number and we will check the fit.
The split is electrical, not quality. Solid-state DMS and EMS are DC-only and suit modern PLC inputs; the reed-based CMS switches a much wider window, so it is the one for AC circuits, relay logic and older panels. The RW (IP68) option exists on DMS and EMS only.
| This switch | DMSG · 2-wire · 10-28 V DC |
|---|---|
| Consider EMS | the mini 2-wire electronic switch for tight installations |
| Consider CMS | the reed alternative for AC circuits and voltages up to 240 V |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
Signals that the clamp cylinder on a machining fixture has fully closed, so the control only releases the spindle interlock once the piston magnet passes the switch.
Mounted on the flap-tuck cylinder of a case packing line; the 2 m lead reaches the adjacent terminal strip without excess slack.
Confirms open or closed travel of a pneumatic slide gate above a weigh hopper - an indoor, dry-air duty that suits the IP64 general type.
Pick this 2-wire model when you want the switch to wire in series like a mechanical contact - simple, with nothing extra on the machine side. If your PLC input needs a dedicated NPN or PNP signal, step up to a 3-wire DMS version instead. The 2 m lead is the shortest in the range and suits compact machines with a nearby terminal strip; longer runs can take 3 m, 5 m, 10 m, or an M8/M12 connector. Profile G must seat in the matching cylinder groove - confirm the fit against your cylinder series, and order the cylinder with the built-in magnet option so there is something to detect.
Quick checklist
Use the F-MQ bracket on round-body cylinders and F-ACT on tie-rod cylinders where there is no groove to seat the switch. Both are ordered separately from the switch. Switching distance and mounting dimensions come from the factory datasheet — ask us for the sheet that matches your cylinder.
It is an electronic (solid-state) switch with a 2-wire output. Supply voltage is 10-28 V DC, ingress protection is IP64 for the general type, and the wiring is a 2 m flying lead. Current, voltage drop and similar limits: confirm from the datasheet.
No. The cylinder must be ordered with the built-in magnet option - the switch only detects that magnet. The G profile must also match the sensor groove of your cylinder series. Send us the series and we will confirm the fit.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, your cylinder model (so we can confirm the profile fit) and the destination. We confirm price, availability and lead time — usually within 7-8 hours.