Airtac RMH Magnetic Coupling Rodless Cylinder RMH16X400S
Genuine AirTAC magnetic rodless cylinder, order code RMH16X400S from the RMH range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- BoreØ16 mm
- Stroke400 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 RMH16X400S
AirTAC's RMH16X400S pairs a 16 mm bore with a 400 mm stroke in the RMH magnetic rodless cylinder family. The piston drives the outer slide through magnets alone, so the tube stays fully sealed with no piston rod, and the added guide rail raises running accuracy, anti-rotation accuracy and load capacity. The S suffix in the order code means the magnet for position sensing is built in.
The magnetic coupling holds 140 N at this bore. The catalog load table rates 3 kg or 5 kg up to a 300 mm stroke and lets the allowed load fall as the stroke grows, so derate accordingly at 400 mm. Air enters through M5x0.8 ports on one side, running at 0.2-0.7 MPa, 50-400 mm/s and -20 to +70 C on air filtered to 40 um. Since 400 mm sits above 250 mm, the stroke tolerance is +1.5 / 0 mm, and both ends carry fixed cushions on adjusting screws.
Airtac RMH Magnetic Coupling Rodless Cylinder RMH16X400S Technical Specifications
| Order code | RMH16X400S |
|---|---|
| Product | Magnetic Rodless Cylinder |
| Bore | Ø16 mm |
| Stroke | 400 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
In the 16 mm ordering ladder this code sits below RMH16X450S and RMH16X500S, which buy 50 and 100 mm more travel from the same 140 N coupling. Choose RMH16X400S when the machine layout fixes the move near 400 mm; step down to a shorter RMH16 build to recover load capacity on long strokes, or move to the RMH20 bore if the payload needs more than 140 N holding force, noting that bore switches to PT1/8 ports.
Applications
Cross-line part push
The guided 400 mm slide pushes parts off a conveyor lane at the end of a packaging cell, with the rail resisting the side load of the push.
Gripper transfer slide
Carries a small pneumatic gripper between two pick positions 400 mm apart, with a CMSH or DMSH switch clamped in the groove to confirm each end position.
Slide gate actuation
Opens and closes an interlocked slide gate over a 400 mm opening, where the isolated piston chamber keeps dust out of the drive.
FAQ
What are the key figures of the RMH16X400S?
16 mm bore, 400 mm stroke with +1.5 / 0 mm tolerance, magnetic holding force 140 N, double acting with built-in guide rail and magnet, M5x0.8 ports, operating pressure 0.2-0.7 MPa with 1.2 MPa (175 psi) proof pressure, speed 50-400 mm/s, temperature -20 to +70 C.
How are cushions and sensors handled on this cylinder?
Both ends have fixed cushions set by adjusting screws, and the catalog lists hydraulic shock absorbers as a separately ordered replacement. CMSH, DMSH and EMSH switches slide into the built-in groove and are triggered by the magnet included in this S-version code.