Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20S 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 SAIJ32BX900-20S
The AirTAC SAIJ32X900-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window between 880 and 900 mm. Delivering 402 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for corrosion resistance and a PT tapered port thread. An integrated magnet enables position sensing with CMSE reed and DMSE electronic switches.
The external rear stopper lets you dial in the exact end position during commissioning without swapping cylinders or adding external stops. This model omits the FB, CA, CB, and CR mounting options, utilizing a reduced set of ISO 15552 mounts (Basic, FA, LB, TC, FTC, TCM1, TCM2). The adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20S |
|---|---|
| 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 SAIJ32BX900-20S
| 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 SAIJ32BX900-20S Is Used
Machine Setup Tuning
Dial in the exact 880-900 mm end position during initial commissioning to perfect a pick-and-place stroke without machining external hard stops.
Product Changeover
Quickly adjust the stroke rearward by up to 20 mm on a packaging line when switching to a slightly shorter product format.
Long-Stroke Ejection
Use the 900 mm travel to push parts out of a machine bed, fine-tuning the final ejection point to match fixture variations.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX900-20S the Right Cylinder?
Choose this 32 mm bore cylinder when an application requires 402 N of push force at 0.5 MPa, which is a step down from the 40 mm bore that provides 628 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, offering more flexibility than a fixed-stroke SAI cylinder. If your process demands load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is a stop, not a lock.
Because the 900 mm stroke is long and unsupported, the 12 mm rod diameter requires an external guide to prevent excessive side-loading and premature seal wear. For an exact ISO 15552 replacement, match the 32 mm bore, 900 mm stroke, 20 mm adjustment, PT port thread, SUS304 (B) rod material, and the -S magnet requirement.
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 SAIJ32BX900-20S 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 up to 724 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 900 mm stroke by up to 20 mm. This creates an adjustable travel window between 880 and 900 mm to fine-tune the end position without replacing the cylinder.
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