The AirTAC Airtac SAI ISO Cylinders SAI32BX100SG is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The SAI32BX100SG is a double-acting ISO 15552 profile-barrel cylinder with a 32 mm bore and 100 mm stroke, built with G1/8 BSPP ports. Unlike the tapered PT standard, BSPP threads are parallel and seal on a bonded face washer, so this version suits European and Asian OEM plumbing where manifold fittings are already G-threaded. The B suffix upgrades the piston rod from carbon steel to SUS304 stainless, giving the 12 mm rod real corrosion resistance in washdown and humid environments. Output lands around 402 N at 0.5 MPa, enough for light ejection, positioning and small pressing tasks over a short 100 mm travel. This unit is supplied with the -S magnet option, so reed or Hall switches (CMSE / DMSE) can clip into the sensor groove machined along both sides of the extruded barrel - handy for confirming retract on a reject gate. Seal material is selectable: standard TPU, NBR (N) for general duty, or Viton (H) if the cylinder sits near hot equipment. Need a stainless rod at a larger force class? Check the 40 mm bore version before ordering.
| Model | Airtac SAI ISO Cylinders SAI32BX100SG |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
With 402 N push at 0.5 MPa, the 100 mm stroke sweeps underfilled or mislabeled bottles off a conveyor lane, and the SUS304 rod stands up to repeated caustic washdown between shifts.
At 0.7 MPa the cylinder reaches 563 N - enough to stake crimp terminals or seat small connectors in a light-duty jig, with the -S magnet confirming full retract before the operator loads the next part.
Diverts product flow at a packaging machine gate; the SUS304 stainless rod and optional Viton (H) seals handle humid, washdown-prone zones better than the carbon-steel standard rod.
The 32 mm bore is the entry size of the SAI range, so there is no smaller bore to step down to - the next size up is the 40 mm bore, which delivers 628 N push at 0.5 MPa. If your load with friction and a safety margin approaches the 402 N available here at 0.5 MPa, size up rather than run the regulator near maximum. At 100 mm stroke the rod is well supported, so no external guidance is required unless side load is present. On plumbing: match the G1/8 BSPP ports to your existing G-thread fittings and manifold blocks - the parallel thread relies on a bonded washer or O-ring at the face, not thread tape. If your plant is wired for NPT, order the T-suffix version instead. To replace an existing ISO 15552 cylinder, match bore 32, stroke 100, port thread (G vs PT), mounting accessory (LB, FA/FB, CA/CB, TC) and the -S magnet if sensors are fitted. Remember this cylinder does not hold load if air is lost - the piston will drift; use the SAIL lock variant or an external rod lock for fail-safe holding.
Quick checklist
At 0.5 MPa it pushes with 402 N and pulls with 345 N. At 0.7 MPa push force is 563 N, and at 0.9 MPa it reaches 724 N. The theoretical maximum is 82 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa with 1.5 MPa proof pressure.
Yes - the SAI follows the ISO 15552 mounting interface, so it is dimensionally interchangeable with other ISO 15552 profile cylinders of the same bore and stroke; match the mounting accessory and magnet option. The SG suffix means the 32 mm bore is fitted with G1/8 BSPP ports: a parallel thread that seals on a bonded washer, standard on EU/Asian OEM lines. It is a made-to-order alternative to the PT (Rc tapered) default, so confirm your fitting standard before ordering - NPT users should choose the T version.
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