Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S
The AirTAC SAIJ32X50-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 10-50 mm usable travel window by allowing you to dial back the 50 mm nominal stroke by up to 40 mm. In the 32 mm bore class, it generates 402 N of push thrust and 345 N of pull thrust at 0.5 MPa, making it well-suited for lighter-duty precision tasks.
This variant includes a -S magnet for position sensing with CMSE reed or DMSE electronic switches. It uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads (G1/8). The extruded aluminum barrel integrates sensor grooves on both sides, and the mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32AX50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SAIJ32AX50-40S Is Used
Machine Changeover
Dial in the 10-50 mm travel window on the fly to accommodate different product sizes on the same line.
End-Stop Tuning
Hit exact retract positions during commissioning without machining external stopper blocks.
Light Force Positioning
Leverage 402 N of push force to move light gates or stops, adjusting the cushion and stroke as needed.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX50-40S the Right Cylinder?
Choose this 32 mm bore adjustable-stroke model when you need to fine-tune the end-of-travel position during machine commissioning or product changeovers without swapping out the physical cylinder or adding external stops. If your application requires higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The rear adjuster acts strictly as a travel stop and relies on the variable air cushions for end-of-stroke deceleration; it does not hold the load dynamically. For load-holding without live air pressure, consider the SAIL or BSAI series. To match this exact configuration, specify the 32 mm bore, 50 mm stroke, 40 mm adjustment, PT G1/8 port, SUS420J2 rod, 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 SAIJ32AX50-40S 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 its maximum 0.9 MPa pressure.
The rear adjuster screw lets you shorten the 50 mm nominal stroke by up to 40 mm, creating a 10-50 mm usable travel window. The adjuster acts as a mechanical stop for end-position tuning and does not lock the load without air pressure.
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