
Genuine AirTAC slide cylinder, order code STWB16X125S from the STW range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
STWB16X125S extends the Dia 16 body-fixed slide to 125 mm travel, one step inside the 25 to 200 mm range that Dia 16 to Dia 32 bores cover in 25 mm increments. Theoretical force stays at 122.5 N at 0.5 MPa, and the twin-rod design resists bending and twisting under moving and side loads. As with every STWB code, the mounting is taken through the cylinder body; STWA16X125S is the plate-fixed counterpart.
A 125 mm stroke crosses the 100 mm line in the stroke tolerance table, so this code carries the +1.5/0 mm band instead of the +1.0/0 mm that applies to STWB16X100S and shorter strokes. Longer travel also builds more momentum at the ends, which is exactly what the hydraulic shock absorbers are there to slow. M5x0.8 ports appear in three sets for piping direction, the magnet rides behind the sensor mounting rail, and the slide runs at 30 to 500 mm/s on 40 um filtered air.
| Order code | STWB16X125S |
|---|---|
| Product | Slide Cylinder |
| Mounting | Body fixed (STWB) |
| Bore | Ø16 mm |
| Stroke | 125 mm |
| Action | Double acting, twin rod |
|---|---|
| Cushion | Hydraulic shock absorber |
| Ø10 | 50.3 N at 0.5 MPa · port M5×0.8 |
| Ø16 | 122.5 N at 0.5 MPa · port M5×0.8 |
| Ø20 | 201.1 N at 0.5 MPa · port M5×0.8 |
| Ø25 | 289.8 N at 0.5 MPa · port PT1/8 |
| Ø32 | 490.1 N at 0.5 MPa · port PT1/8 |
| Fluid | Air (filtered by 40 µm element) |
| Operating pressure | 0.2-1.0 MPa (Ø10), 0.15-1.0 MPa (Ø16-32) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C |
| Speed | 30-500 mm/s |
| Stroke tolerance | +1.0 / 0 mm (≤100), +1.5 / 0 mm (>100) |
| Anti-rotation | ±0.1° (Ø10), ±0.05° (Ø16, 20), ±0.03° (Ø25, 32) |
| Port | M5×0.8 (Ø10-20), PT1/8 (Ø25, 32) |
Source: AirTAC Products Catalog 2026A (PDF01-P0547..P0548), STW series specifications, theoretical force, strokes and ordering code.
Pick STWB16X125S when your travel needs to pass 100 mm but the load still fits the Dia 16 force of 122.5 N at 0.5 MPa; its stroke neighbours are STWB16X100S and STWB16X150S. If you need tighter +1.0/0 mm positioning tolerance, stay at STWB16X100S or below. For heavier loads at the same 125 mm travel, move up to a Dia 20 code such as STWB20X125S rated at 201.1 N, and if the machine bolts to an end plate rather than the body, order STWA16X125S.
The 125 mm travel reaches across wider conveyor lanes than the 100 mm code, and the hydraulic shock absorbers handle the higher end-of-stroke momentum that longer travel produces.
A probe or gauge carrier can be advanced 125 mm onto a part with +/-0.05 deg anti-rotation, keeping the tool aligned, while the magnet and sensor rail confirm the engaged position.
Body-fixed mounting makes it simple to hang the slide on a storage frame, and the 122.5 N force at 0.5 MPa suits retrieving small totes or trays over the 125 mm stroke.
Dia 16 mm twin-rod slide cylinder, 125 mm stroke, body-fixed (B) mounting, 122.5 N theoretical force at 0.5 MPa, operating pressure 0.15-1.0 MPa, proof pressure 1.5 MPa (215 psi), M5x0.8 ports in three sets, anti-rotation +/-0.05 deg, speed 30-500 mm/s, temperature -20 to +70 C, stroke tolerance +1.5/0 mm, air filtered by a 40 um element, built-in magnet with sensor mounting rail.
Stroke length and tolerance. Beyond 100 mm the stroke tolerance widens from +1.0/0 mm to +1.5/0 mm, so STWB16X125S carries the wider band while force, ports and mounting stay the same as STWB16X100S. If your application needs the tighter tolerance, select the 100 mm or shorter stroke instead.