Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke85 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S
The AirTAC SAIJ32X85-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 85 mm stroke that can be dialed back by up to 40 mm, yielding a precise 45-85 mm usable travel window for commissioning flexibility.
Delivering 402 N of push force at 0.5 MPa, this 32 mm bore unit features a SUS420J2 stainless steel rod and a built-in magnet for CMSE reed and DMSE electronic sensors. Its extruded aluminum barrel includes sensor grooves on both sides, and the PT G1/8 port ensures tapered pneumatic connectivity.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S |
|---|---|
| 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S
| 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.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S Is Used
Machine Changeover
Dial in the 45-85 mm stroke window during product size transitions to set new end positions rapidly without adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end at commissioning using the rear screw, absorbing minor mechanical variances in the fixture layout.
Sensor-Driven Sequencing
Leverage the integrated magnet with DMSE solid-state sensors to confirm the adjusted end-of-stroke position in automated control loops.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S the Right Cylinder?
Choose this adjustable model over a fixed-stroke SAI when you need variable end-stops for product changeovers without physically swapping cylinders. If your process requires less force, dropping down to a smaller bore is an option, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa for heavier demands.
Because the stroke is 85 mm, side-load risks are minimal, but the rod diameter and M10x1.25 thread still dictate the acceptable load margins. Remember that the rear adjuster acts only as a travel stop; for true load-holding without live air pressure, consider an SAIL or BSAI cylinder. To match this exact configuration, specify: 32x85 bore and stroke, 40 mm adjustment, PT G1/8 port, Basic/LB/TC mounts, and the -S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum of 82 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the nominal 85 mm stroke by up to 40 mm, creating a 45-85 mm usable travel window. This stopper decelerates the piston at the retract end but does not lock the load without live air.
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