Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-50S 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 SAIJ32AX250-50S
The AirTAC SAIJ32X250-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 250 mm nominal stroke that can be dialed back by up to 50 mm, giving an effective usable travel window of 200 to 250 mm for precise end-position tuning. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. This variant includes a magnet for position sensing and uses a SUS420J2 stainless steel piston rod for enhanced corrosion resistance.
The rear adjustment screw acts purely as a mechanical stop to trim the retract distance without needing external stops or cylinder replacement. It is dimensionally interchangeable per ISO 15552 mounting interfaces and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept AirTAC CMSE reed and DMSE electronic solid-state switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-50S |
|---|---|
| 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 SAIJ32AX250-50S
| 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 SAIJ32AX250-50S Is Used
Machine Setup & Changeover
Dial in the exact retract position within the 200-250 mm window during product line changeovers without physically swapping cylinders.
Variable End-Stop Positioning
Use the rear mechanical stop to set precise end positions for machining or testing fixtures that require frequent travel adjustments.
Sensor-Ready Automation
Leverage the integrated magnet and dual sensor grooves to mount CMSE or DMSE switches for precise positioning feedback.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX250-50S the Right Cylinder?
Choose this 32 mm bore when your application requires up to 402 N push force at 0.5 MPa; stepping up to the 40 mm bore raises that output to 628 N if higher clamping or lifting force is needed. An adjustable stroke is ideal for machine setup and product changeover, letting you fine-tune the end stop during commissioning rather than swapping a fixed-stroke SAI cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR brackets. To match this ISO 15552 replacement, specify a 32 mm bore, 250 mm stroke, 50 mm adjustment, PT port, and the -S magnet. Since the 250 mm stroke is moderately long for a 32 mm rod, an external guide is recommended to prevent side-load wear.
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 SAIJ32AX250-50S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm. This provides a usable travel window of 200 to 250 mm, allowing fine-tuning of the end position at commissioning without adding external stops.
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. The rear adjuster is only a travel stop and the air cushions only decelerate motion; neither acts as a lock. For load-holding without live air pressure, use a SAIL or BSAI cylinder.
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