Airtac RMH Magnetic Coupling Rodless Cylinder RMH20X600S
Genuine AirTAC magnetic rodless cylinder, order code RMH20X600S from the RMH range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- BoreØ20 mm
- Stroke600 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 RMH20X600S
The RMH20X600S stretches the Dia 20 RMH bore to 600 mm of magnetically coupled travel, one of the long-stroke points of a series that reaches 800 mm. Because magnets move the slide instead of a piston rod, there is no rod whip or overhang to house, and the built-in guide rail keeps running and anti-rotation accuracy over the full 600 mm.
This code runs past the catalog's Dia 20 loading case of 3.6/6 kg, which is tabled only up to 500 mm stroke, and the allowed load falls on longer strokes, so verify your carriage against the datasheet load curves before ordering. The 220 N magnetic holding force bounds the axial thrust, fixed cushions on adjusting screws can be swapped for separately ordered hydraulic shock absorbers to tame the long travel, and CMSH, DMSH or EMSH sensors ride in the built-in groove.
Airtac RMH Magnetic Coupling Rodless Cylinder RMH20X600S Technical Specifications
| Order code | RMH20X600S |
|---|---|
| Product | Magnetic Rodless Cylinder |
| Bore | Ø20 mm |
| Stroke | 600 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
Choose RMH20X600S over RMH20X500S when you truly need more than the 500 mm loading window accepts, and over RMH20X800S if the extra 200 mm of body length buys nothing. If the derated Dia 20 load at 600 mm is too low for your carriage, RMH25X600S gives 345 N holding force and a 4.8/8 kg base case. This code carries PT threads; RMH20X600SG (G) and RMH20X600ST (NPT) are the alternate thread variants listed for Dia 20.
Applications
Long horizontal transfer on an automation line
Carries a workpiece carrier over 600 mm without the housing length a rod cylinder of equal travel would need, guided by the built-in rail.
Sorting pusher over multiple lanes
A 600 mm slide reaches across several chute mouths, with an EMSH sensor in the groove reporting the pusher position to the PLC.
Vertical lift column on a light gantry
Mounted vertically, the sealed magnetic coupling keeps 220 N holding force on the load, and separately ordered hydraulic shock absorbers tame the drop at stroke end.
FAQ
What are the key figures of the AirTAC RMH20X600S?
Dia 20 mm bore, 600 mm stroke, PT1/8 ports, magnetic coupling with 220 N holding force, operating pressure 0.2-0.7 MPa, speed 50-400 mm/s, temperature -20 to +70 C, stroke tolerance +1.5/0 mm for strokes of 251-800 mm, cushions replaceable by separately ordered hydraulic shock absorbers.
Does the Dia 20 load rating still apply at 600 mm stroke?
Not directly. The catalog tables 3.6/6 kg for the Dia 20 bore only up to 500 mm stroke, and states that the allowed load falls on longer strokes. Read the RMH load table in the datasheet for the derated value at 600 mm, or select RMH25X600S with its 345 N holding force and 4.8/8 kg case if you need more margin.