Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S
The AirTAC SAIJ32X325-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 402N push force at 0.5 MPa and features a 325mm nominal stroke that can be fine-tuned backward by up to 50mm, yielding a precise 275-325mm usable travel window. This built-in adjustability allows you to dial in exact end positions during commissioning without adding external stops.
This model includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE solid-state switches. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and relies on adjustable air cushions at both ends to decelerate the load.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 325 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 SAIJ32AX325-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 SAIJ32AX325-50S Is Used
Changeover Dial-In
Perfect for packaging lines that switch product sizes, letting operators dial back the stroke by up to 50mm to accommodate varying package depths without swapping hardware.
Commissioning Calibration
Ideal for fine-tuning the final end-position of a tooling head during machine setup, ensuring exact contact without machining custom external stopper blocks.
Variable Diverting
Useful on conveyor sorting systems where the diverting arm needs a flexible travel window to push different box widths accurately onto downstream lanes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-50S the Right Cylinder?
Choose this 32mm bore cylinder when your application requires 402N of push force or 345N of pull force at 0.5 MPa. If your setup demands greater thrust, stepping up to the 40mm bore yields 628N push force. The 50mm rear adjustment mechanism is ideal for machine setups requiring variable end-stops or product-size changeovers, functioning as a travel stop rather than a load-holding lock. Because this cylinder lacks a lock, it cannot hold position without live air; for secure load-holding, consider the SAIL or BSAI series.
With a 325mm stroke, the 12mm rod diameter and M10x1.25 rod thread provide a robust interface, but long unsupported strokes are prone to side-loading. Always use an external guide to prevent binding. To replace an ISO 15552 cylinder, match the 32mm bore, 325mm stroke, 50mm adjustment, PT G1/8 port, and -S magnet.
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 SAIJ32AX325-50S FAQ
The rear adjusting screw acts as a mechanical stopper that lets you shorten the effective stroke from 325mm down to as little as 275mm. It trims the travel end-position during commissioning but does not lock the load without live air pressure.
At 0.5 MPa it provides 402N of push force and 345N of pull force. The operational speed range is 30-800 mm/s, and it features adjustable air cushions at both ends to manage deceleration.
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