Airtac RMH Magnetic Coupling Rodless Cylinder RMH20X200S
Genuine AirTAC magnetic rodless cylinder, order code RMH20X200S from the RMH range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- BoreØ20 mm
- Stroke200 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 RMH20X200S
RMH20X200S doubles the travel of the 100 mm version in the same Dia 20 envelope, because the magnetic coupling replaces the piston rod and the sealed tube needs no overhang for it. Travel is still compact enough that the stroke stays within the tighter +1.0/0 mm tolerance band that the catalog applies up to 250 mm.
The built-in guide rail carries the load and sets anti-rotation accuracy, and sensors CMSH, DMSH or EMSH clip into the built-in groove. Ports are PT1/8 on one side, cushions are fixed on adjusting screws with separately ordered hydraulic shock absorbers as an option, and the cylinder runs on air filtered by a 40 um element at 0.2-0.7 MPa, 50-400 mm/s and -20 to +70 C.
Airtac RMH Magnetic Coupling Rodless Cylinder RMH20X200S Technical Specifications
| Order code | RMH20X200S |
|---|---|
| Product | Magnetic Rodless Cylinder |
| Bore | Ø20 mm |
| Stroke | 200 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 RMH20X200S when RMH20X100S leaves you short and RMH20X250S is more travel than the layout needs. It shares the Dia 20 220 N holding force and the 3.6 / 6 kg load case valid to 500 mm, so 200 mm of stroke leaves load margin; above 250 mm the stroke tolerance loosens to +1.5/0 mm, a reason to stay here if stroke accuracy matters. For lighter loads consider RMH16X200S at 140 N, for heavier ones RMH25X200S at 345 N. Non-PT threads are ordered on Dia 20 with code G (G threads) or T (NPT).
Applications
Lane pusher and divert
Pushes product sideways off a conveyor lane over 200 mm, with the guide rail absorbing the side load.
Dispensing head travel
Carries a glue or dosing nozzle across a 200 mm pass over trays or boards, fed by PT1/8 air ports on one side.
Small vertical lift
Raises and lowers light trays or fixtures, keeping the applied load force below the 220 N magnetic holding force.
FAQ
What figures define RMH20X200S?
Dia 20 bore, 200 mm stroke, 220 N magnetic holding force, double acting magnetic coupling with built-in guide rail, 0.2-0.7 MPa operating pressure (1.2 MPa / 175 psi proof), 50-400 mm/s, -20 to +70 C, PT1/8 ports, stroke tolerance +1.0/0 mm at this length, sensors CMSH, DMSH, EMSH.
Why pick 200 mm over the 100 mm or 250 mm version?
It doubles the travel of RMH20X100S while remaining under the 250 mm limit where the catalog keeps the tighter +1.0/0 mm stroke tolerance, and it still sits well inside the 3.6 / 6 kg Dia 20 load table that is valid up to 500 mm; the allowed load falls on longer strokes, so 200 mm holds more margin than a long-stroke build.