Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-30 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 SAIJ32AX275-30
The AirTAC SAIJ32X275-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 275 mm nominal stroke that can be dialed back by up to 30 mm, creating a precise 245-275 mm usable travel window for commissioning flexibility. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks.
This variant features a SUS420J2 stainless steel rod for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without swapping the cylinder.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-30 |
|---|---|
| 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 SAIJ32AX275-30
| 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 SAIJ32AX275-30 Is Used
Machine Changeover
Dial in the 245-275 mm travel window during product size changes without physically swapping cylinders or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract stroke by up to 30 mm at commissioning to absorb mechanical tolerances and achieve precise final positioning.
Light-Load Sorting
Ideal for diverting small parts on a line, using the 402 N thrust and variable air cushions to handle different package sizes smoothly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX275-30 the Right Cylinder?
Choose this 32 mm bore when your application requires around 402 N of push force at 0.5 MPa. If your process needs less force, stepping down is not an option within the SAIJ range, but if you need significantly more thrust, consider a 40 mm bore which provides 628 N. The adjustable stroke is selected when you need variable end-stops for product changeovers rather than relying on a fixed-stroke SAI cylinder. Remember that the rear adjuster only sets the travel end; it does not hold the load without live air. For load-holding without pressure, use a SAIL or BSAI cylinder.
Because the 275 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread should be guided externally to prevent side-loading damage. This model uses a PT port thread and lacks a magnet (-S). It is dimensionally interchangeable with ISO 15552 cylinders and supports a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ32AX275-30 FAQ
At a 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 adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from 275 mm down to 245 mm. This adjuster sets the travel end but does not lock or hold the load without live air pressure.
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