Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S
The AirTAC SAIJ32X275-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 275mm nominal stroke that can be fine-tuned down by up to 40mm, creating a precise 235-275mm usable travel window. This built-in adjustability allows you to dial in the retract end position during commissioning without swapping out the cylinder or adding external stops.
This SKU includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and ships with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides, and the rear adjuster acts purely as a travel stop, meaning it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAIJ32BX275-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SAIJ32BX275-40S Is Used
Product Changeover
Quickly dial in the 235-275mm retract end-stop when switching between product sizes on a packaging line, avoiding mechanical rebuilds.
Machine Commissioning
Fine-tune the final resting position of tooling during setup, using the 40mm rear adjustment screw to perfect alignment without external shims.
Variable End Positioning
Achieve precise endpoint control in light assembly tasks using the 402N push force, relying on the stopper to set the exact travel limit.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-40S the Right Cylinder?
Choose this 32mm bore when you need 402N push force at 0.5 MPa and a variable end-stop for product changeovers; if your application requires less force, stepping down is not an option in this series, but stepping up to a 40mm bore yields 628N. An adjustable stroke is favored over a fixed SAI cylinder when you need on-the-fly end-position tuning rather than a locked stroke. Because the 275mm stroke is relatively long for a 32mm bore, ensure you use an external guide to prevent excessive side-loading on the 12mm rod. The adjuster and air cushions only decelerate the travel end, so for load-holding without live pressure, look to the SAIL or BSAI series. To match this ISO 15552 interchangeable cylinder, specify: 32mm bore, 275mm stroke, 40mm adjustment, PT tapered port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and a -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 SAIJ32BX275-40S FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster allows you to shorten the 275mm nominal stroke by up to 40mm, providing a usable travel window of 235-275mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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