Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20 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 SAIJ32BX275-20
The AirTAC SAIJ32X275-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without adding external stops. With a 275 mm nominal stroke and a 20 mm adjustment range, it provides a usable travel window of 255-275 mm. Operating at 0.5 MPa, it delivers 402 N of push force and 345 N of pull force.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE reed and DMSE electronic sensors if a magnet is added later. It supports speeds of 30-800 mm/s and uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20 |
|---|---|
| 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 SAIJ32BX275-20
| 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 SAIJ32BX275-20 Is Used
Machine Setup Tuning
Dial in the exact 255-275 mm retract position during initial commissioning to perfectly align a pick-and-place head without machining custom spacers.
Product Changeover
Quickly adjust the end-stop by up to 20 mm on a packaging line when switching to a slightly shorter carton size, minimizing production downtime.
Variable End Stops
Use the rear screw to establish a precise, variable end-stop for a light-duty clamping task that requires exactly 265 mm of travel on a given day.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-20 the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning during commissioning or product changeover, avoiding the need to swap a fixed-stroke SAI cylinder. If your setup needs more thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you need less force, dropping to a smaller bore might be more efficient.
Remember that the rear adjuster acts only as a travel stop for deceleration, not a lock; this SAIJ cylinder cannot hold a load or maintain position without live air pressure. For load-holding without continuous air, consider an external pilot-operated check valve or the AirTAC SAIL or BSAI locking cylinder series. Because the 275 mm stroke is relatively long for a 32 mm rod, ensure you provide an external guide to prevent excessive side-loading.
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 SAIJ32BX275-20 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If operated at 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw lets you shorten the effective travel from the 275 mm nominal stroke down to as little as 255 mm. This creates a 255-275 mm adjustable window for fine-tuning the retract end position at commissioning without replacing the cylinder.
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