Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S
The AirTAC SAIJ32X250-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end position without swapping out the unit. With a nominal 250 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 230 to 250 mm. Delivering 402 N of push force at 0.5 MPa, it fits light-duty positioning tasks. The integrated -S magnet operates seamlessly with AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance and utilizes PT tapered port threads. The extruded aluminum profile includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts only as a travel stop for deceleration, not a lock, so the load will not hold position without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAIJ32AX250-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SAIJ32AX250-20S Is Used
Machine Setup Tuning
Dial in the exact 230-250 mm end position during commissioning to perfectly align stops without machining new mounting plates.
Product Changeover
Quickly adjust the stroke length on a packaging line when handling slightly different carton sizes, minimizing downtime.
Light-Duty Positioning
Leverage the 402 N push force and CMSE/DMSE sensor feedback for repeatable clamping of lightweight components.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-20S the Right Cylinder?
Choose this 32 mm bore when 402 N of push force at 0.5 MPa is sufficient, or step up to the 40 mm bore if you need 628 N. The adjustable stroke is ideal for machine setup and product changeovers, letting you dial in the exact end-stop without adding external physical stops. For fixed travel without the adjustment feature, the standard SAI cylinder is the alternative. If your application requires the load to stay held without continuous air pressure, consider the SAIL or BSAI locking cylinders instead. Because the 250 mm stroke is substantial for a 32 mm bore, use an external guide to prevent excessive side loading on the 12 mm rod.
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 SAIJ32AX250-20S FAQ
At 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 acts as a mechanical stop that lets you shorten the effective stroke from 250 mm down to 230 mm. It only sets the travel end and does not lock the load without live air pressure.
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