Airtac RMH Magnetic Coupling Rodless Cylinder RMH10X300S
Genuine AirTAC magnetic rodless cylinder, order code RMH10X300S from the RMH range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- BoreØ10 mm
- Stroke300 mm
- Port threadM5×0.8
- 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 RMH10X300S
RMH10X300S is the longest stroke AirTAC offers in the Dia 10 bore: 300 mm of sealed magnetic travel on a guide-railed slide. The double-acting piston is coupled to the slide purely by magnets, so there is no rod to buckle or seal to wear over the full travel, and the isolated piston chamber keeps contaminants out of the drive.
Magnetic holding force is 55 N and ports are M5x0.8 on a single side. Fixed cushions with adjusting screws absorb both end positions, stroke tolerance is +1.0 / 0 mm, and the body accepts CMSH, DMSH or EMSH switches in its groove. Supply filtered air at 0.2-0.7 MPa and it cycles at 50-400 mm/s from -20 to +70 C.
Airtac RMH Magnetic Coupling Rodless Cylinder RMH10X300S Technical Specifications
| Order code | RMH10X300S |
|---|---|
| Product | Magnetic Rodless Cylinder |
| Bore | Ø10 mm |
| Stroke | 300 mm |
| Port thread | M5×0.8 |
| 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 code marks the top of the Dia 10 range: RMH10X50S and RMH10X250S cover shorter travels with the same 55 N coupling and M5x0.8 ports. If you need more than 300 mm, the catalog moves you to the Dia 16 bore (RMH16), which stretches to 500 mm and lifts holding force to 140 N. The catalog's 1.4 / 2.4 kg load case is stated up to 200 mm of stroke, so at 300 mm expect a reduced allowed load and verify it on the datasheet before sizing side loads.
Applications
Sliding guard and cover doors
Drives a machine guard or cover panel through its full 300 mm opening stroke, with the built-in guide rail resisting the anti-rotation a door panel imposes.
Pusher across a narrow belt
Pushes parts fully across a narrow conveyor or into a chute at up to 400 mm/s, with fixed cushion screws softening the ejection stroke at both ends.
Long-travel inspection positioning
Carries a camera or gauge over a 300 mm measuring span, while EMSH or DMSH switches in the groove flag the reference and end positions.
FAQ
What are the key specifications of the RMH10X300S?
Dia 10 mm bore, 300 mm stroke (maximum for this bore), double acting with magnetic coupling, 55 N holding force, built-in guide rail and magnet (code S), M5x0.8 ports on one side, fixed cushions with adjusting screws, 0.2-0.7 MPa operating pressure, -20 to +70 C, 50-400 mm/s, stroke tolerance +1.0 / 0 mm.
Does the RMH10X300S give enough guidance for a 300 mm stroke?
Yes - the built-in guide rail raises running accuracy, anti-rotation accuracy and load capacity compared with a plain magnetic rodless body. You still need to respect two catalog limits: keep the load force below the 55 N holding force, and remember the quoted 1.4 / 2.4 kg loading case applies at shorter strokes, with the allowed load falling toward 300 mm.