Airtac RMH Magnetic Coupling Rodless Cylinder RMH25X800S
Genuine AirTAC magnetic rodless cylinder, order code RMH25X800S from the RMH range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- BoreØ25 mm
- Stroke800 mm
- Port threadPT1/8
- ActionDouble acting, magnetic coupling
- GuideBuilt-in guide rail
- Ø10holding force 55 N · strokes to 300 mm
- 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 RMH Magnetic Coupling Rodless Cylinder RMH25X800S
RMH25X800S is the longest standard build of the AirTAC RMH series: a Dia 25 magnetically coupled slide running the full 800 mm the series allows. The guide rail is built in, the PT1/8 ports sit on one side of the body, and sensors CMSH, DMSH or EMSH fit the built-in groove for end-of-stroke detection.
At full stroke the allowed load drops below the 4.8 / 8 kg the catalog lists up to 500 mm, and the applied force must stay under the 345 N holding force of the magnetic coupling. Stroke tolerance on 251-800 mm builds is +1.5 / 0 mm, and the slide runs at 50-400 mm/s on air filtered to 40 um at 0.2-0.7 MPa, from -20 to +70 C.
Airtac RMH Magnetic Coupling Rodless Cylinder RMH25X800S Technical Specifications
| Order code | RMH25X800S |
|---|---|
| Product | Magnetic Rodless Cylinder |
| Bore | Ø25 mm |
| Stroke | 800 mm |
| Port thread | PT1/8 |
| Action | Double acting, magnetic coupling |
|---|---|
| Guide | Built-in guide rail |
| Ø10 | holding force 55 N · strokes to 300 mm |
| Ø16 | holding force 140 N · strokes to 500 mm |
| Ø20 | holding force 220 N · strokes to 800 mm |
| Ø25 | holding force 345 N · strokes to 800 mm |
| Fluid | Air (filtered by 40 µm element) |
| Operating pressure | 0.2-0.7 MPa |
| Proof pressure | 1.2 MPa (175 psi) |
| Temperature | -20 to +70 °C |
| Speed | 50-400 mm/s |
| Stroke tolerance | +1.0 / 0 mm (≤250), +1.5 / 0 mm (251-800) |
| Cushion | Fixed, adjusting screws |
| Sensors | CMSH, DMSH, EMSH |
| Port | M5×0.8 (Ø10, 16), PT1/8 (Ø20, 25) |
Source: AirTAC Products Catalog 2026A (PDF01-P0612..P0613), RMH series specifications, load tables, strokes and ordering code.
How to choose
This is the end of the Dia 25 range: RMH25X600S and RMH25X500S are the shorter siblings when travel under 600 mm suffices, and they keep more of the rated load in reserve. No smaller bore reaches 800 mm (Dia 10 stops at 300 mm, Dia 16 at 500 mm), so full-length travel fixes the choice of Dia 25. Order code T swaps the PT1/8 ports for NPT and code G for G threads.
Applications
Wide aisle door
Automate a wide sliding aisle or dock door on the full 800 mm travel, using sensors in the body groove for open and closed signals.
Long-stroke ejector
Push long profiles or full pallet rows clear of a work zone, sizing the load against the derated Dia 25 capacity at 800 mm.
Alignment feed
Feed and square up long workpieces on a machining or assembly line, letting the guide rail hold alignment across the long span.
FAQ
What are the main specifications of the RMH25X800S?
Dia 25 bore, 800 mm stroke, 345 N magnetic holding force, PT1/8 ports, 0.2-0.7 MPa operating pressure with 1.2 MPa (175 psi) proof pressure, 50-400 mm/s, -20 to +70 C, code S magnet, stroke tolerance +1.5 / 0 mm.
Which position sensors work with this code?
The AirTAC CMSH, DMSH and EMSH reed sensors fit the built-in groove of the RMH body. Since this code carries the built-in magnet (code S), the sensors detect slide position along the full 800 mm travel.