Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S
The AirTAC SAIJ32X350-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 300 to 350 mm, allowing you to dial back the end position by up to 50 mm during commissioning without adding external stops. In the 32 mm bore class, it delivers 402 N of push thrust and 345 N of pull thrust at 0.5 MPa.
This variant uses a SUS420J2 stainless steel rod for improved corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel has sensor grooves on both sides, and the fluid porting uses PT tapered threads. The rear adjuster acts purely as a travel stop for deceleration and positioning, meaning it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAIJ32AX350-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SAIJ32AX350-50S Is Used
Product Changeover Setup
Quickly dial the stroke back from 350 mm to 300 mm using the rear screw when switching to a shorter package size on a packaging line.
Sensor Position Calibration
Use the DMSE electronic sensors in the dual-side barrel grooves to confirm the exact end-of-stroke position after micro-adjustments.
End-Stop Tuning
Fine-tune the retract end position at machine commissioning without swapping out the entire ISO 15552 cylinder or adding external stopper blocks.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX350-50S the Right Cylinder?
Choose this 32 mm bore when 402 N of push force at 0.5 MPa is sufficient for your task; step up to a 40 mm bore if you need 628 N to overcome higher friction. An adjustable stroke is selected over a fixed SAI when a machine requires fine end-position tuning during product changeovers. To replace this cylinder, match the 32 mm bore, 350 mm nominal stroke, 50 mm adjustment, PT port thread, and the -S magnet option. Since the 350 mm stroke is relatively long for a 32 mm rod, an external guide is recommended to prevent excessive side-loading on the piston rod.
For load-holding without continuous air pressure, note that the rear adjuster and air cushions only set the travel end and do not function as a brake. You would need an external pilot-operated check valve or a related SAIL pneumatic lock cylinder to hold a suspended load safely.
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 SAIJ32AX350-50S 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 operates at a speed range of 30 to 800 mm/s.
The rear adjuster screw lets you mechanically shorten the effective travel from the 350 mm nominal stroke down to a minimum of 300 mm, giving a 300-350 mm usable window. This adjuster is a physical stop for end-position tuning, not a lock, and the cylinder remains double-acting.
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