
The AirTAC SAI32 Standard Cylinder SAI32BX85S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 85mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI32X85-S is a double-acting ISO 15552 profile cylinder engineered for compact automation. Delivering a push force of 402 N at 0.5 MPa and 563 N at 0.7 MPa, this 32 mm bore unit is tailored for short 85 mm stroke movements. Its extruded aluminum barrel omits tie-rods, providing a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance and a built-in magnet (-S) for position sensing. You can mount CMSE or DMSE reed switches directly into the sensor grooves machined on both sides of the barrel. Fluid ports feature PT tapered threads, ensuring robust pneumatic sealing in demanding industrial environments.
| Model | Airtac SAI32 Standard Cylinder SAI32BX85S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 85 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. |
| ×85 | 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.
Uses the 563 N push force at 0.7 MPa to reliably push lightweight plastic or aluminum components out of machining centers.
Actuates a short 85 mm stroke diverting arm to route small boxes on a packaging line without taking up excessive machine footprint.
Provides the linear motion to open and close small pneumatic grippers holding delicate electronics during assembly.
Select this 85 mm stroke model when a compact 32 mm bore actuator is required for light-duty positioning. If your application demands even less force, stepping down is not an option below 32 mm in the SAI series, but stepping up to a 40 mm bore yields 628 N at 0.5 MPa for heavier payloads. Because the stroke is under 300 mm, rod-bearing bending is minimal, though external guides remain recommended for absorbing any lateral side loads.
The adjustable air cushions at both ends decelerate the piston smoothly to prevent end-cap impact, but they do not function as a braking mechanism. If the air supply is dropped, the rod will drift; apply an external pilot check valve or utilize the SAIL variant if static load holding is mandatory. This unit is dimensionally interchangeable with other ISO 15552 cylinders, matching the standard 32 mm bore, 85 mm stroke, PT G1/8 port, and standard mounting accessories like LB foot or FA flange.
Quick checklist
At a 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N. When pressure increases to 0.7 MPa, the push force reaches 563 N.
Yes. The SAI32X85-S is a true ISO 15552 profile cylinder, making its mounting dimensions and G1/8 port spacing fully interchangeable with other ISO 15552 cylinders of the same bore size.
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