Airtac DMSJ Electronic Sensor DMSJ-050
The AirTAC Airtac DMSJ Electronic Sensor DMSJ-050 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 5 m flying lead. It only works on a cylinder that carries a piston magnet.
- TechnologyElectronic (solid-state)
- Output2-wire
- Supply voltage10-28 V DC
- ProtectionIP64
- Profile (groove fit)J
- Lead / connector5 m flying lead
- VersionStandard
- RequiresMagnet-equipped cylinder
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac DMSJ Electronic Sensor DMSJ-050
The DMSJ-050 is a solid-state electronic position switch from AirTAC's DMS range, built to detect the piston magnet of a magnet-equipped AirTAC cylinder. This version is 2-wire with a 5 m flying lead, supplied at 10-28 V DC and protected to IP64 in the general type. The J profile letter sets the fit into the cylinder's sensor groove and must be matched to the cylinder you are using.
With five metres of lead, the switch can be wired back to a remote control panel directly, avoiding an intermediate junction box on machines where access is difficult. Unlike a reed switch, the solid-state element has no mechanical contact, so there is no bounce and no contact erosion under rapid cycling - but the supply must stay within the 10-28 V DC window and the cylinder must actually carry the magnet.
Airtac DMSJ Electronic Sensor DMSJ-050 Technical Specifications
| Model | Airtac DMSJ Electronic Sensor DMSJ-050 |
|---|---|
| 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 | 5 m flying lead |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | J (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.
Model Code: Airtac DMSJ Electronic Sensor DMSJ-050
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| J | 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. |
| 050 | 5 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.
Which Family Do You Need?
- DMSElectronic, 2-wire / NPN / PNP, DC
- EMSMini electronic, 2-wire only, DC
- CMSReed contact, 2-wire, 5-240 V AC/DC
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 | DMSJ · 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) |
Where the Airtac DMSJ Electronic Sensor DMSJ-050 Is Used
High-rile shuttle car position
A long 5 m run carries the switched signal from a shuttle-car gripper cylinder straight back to the aisle controller without splicing.
Lab automation lift stage
On a compact laboratory lifting stage, the 2-wire output confirms up/down position while the solid-state design endures thousands of daily cycles.
Multi-station rotary table
Each clamp station on an indexed rotary table gets a direct-to-panel 5 m cable, simplifying the wiring loom across the moving turret.
Is the Airtac DMSJ Electronic Sensor DMSJ-050 the Right Switch?
Use the 050 lead when the cylinder and the controller are far apart and a direct run is simpler than adding junctions. The 2-wire arrangement wires in series with your load, so there is no NPN/PNP polarity question. Where a PLC input demands a dedicated sourcing or sinking signal, take the 3-wire DMS in P or N form; where sensors are swapped often, an M8 or M12 connector variant speeds up service; and where the cable lives in washdown or a moving energy chain, the -RW version lifts protection to IP68. Confirm the J profile seats in your cylinder's groove and that the cylinder has the magnet option before ordering.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (2-wire)
- ✓ Supply rail is 10-28 V DC
- ✓ Lead length or M8 / M12 connector
- ✓ Coolant or flexing? Use the RW version
Installation & Wiring Notes
- check The cylinder must carry a piston magnet — a plain cylinder cannot be sensed.
- check Slide the switch along the groove to the stop position, then lock it.
- check Keep the supply within 10-28 V DC.
- check Wire 2-wire to match the PLC input's polarity.
- check Keep the lead clear of moving parts; use the RW type where it must flex.
- check Rated IP64 — protect it beyond that rating.
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.
Airtac DMSJ Electronic Sensor DMSJ-050 FAQ
Electronic (solid-state) switch, 2-wire output, supply 10-28 V DC, IP64 protection in the general type, with a 5 m flying lead. It detects the piston magnet only on a cylinder ordered with the magnet option, and the J profile must fit that cylinder's groove.
No - it is solid-state, so there is no mechanical reed to bounce or wear, which suits fast repetitive cycling better; a reed switch instead offers a very wide 5-240 V AC/DC range. The lead length is simply a wiring-distance choice and does not affect the sensing point; confirm any other figures from the datasheet.
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Genuine AirTAC parts produced by AirTAC factory.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Cylinder Sensors
Request a Quote for Airtac DMSJ Electronic Sensor DMSJ-050
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.