Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 900mm 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
- Stroke900 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20
The AirTAC SAIJ32X900-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. With a 900 mm nominal stroke and a 20 mm adjustment range, it provides a usable travel window of 880 to 900 mm for precise end-position tuning. It delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa, making it suitable for lighter-duty handling tasks.
This unit features a SUS304 stainless steel rod (code B) for enhanced corrosion resistance and uses PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides. Note that the rear adjuster acts strictly as a travel stop for deceleration and positioning; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 900 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 SAIJ32BX900-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×900 | 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 SAIJ32BX900-20 Is Used
Stroke Commissioning
Dial in the exact 880-900 mm end position during machine setup without machining external stopper blocks.
Product Changeover
Quickly adjust the retract stroke to accommodate new package sizes on a packaging line.
Light Force Positioning
Move lighter jigs or fixtures using the 402 N push force while fine-tuning the final retract point.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20 the Right Cylinder?
Choose this 32 mm bore when your application requires the 402 N push force at 0.5 MPa, and stepping up to a 40 mm bore (628 N push) would be overkill. The adjustable stroke is ideal for fine-tuning the end position during commissioning or product changeovers without swapping the cylinder or adding external stops. Unlike a fixed SAI cylinder, this model lets you dial in the exact 880-900 mm travel distance on-site.
Because the 900 mm stroke is long relative to the 12 mm rod diameter, the piston rod is susceptible to side-loading and sagging. An external guide is strongly recommended to prevent premature seal wear and binding. For load-holding without live air, use an external rod lock or pilot-operated check valve, as the adjuster and air cushions are not brakes. This cylinder is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ 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 SAIJ32BX900-20 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At the maximum operating pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw lets you shorten the 900 mm nominal stroke by up to 20 mm, creating an 880-900 mm adjustable travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without air pressure.
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