Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-40S 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 SAIJ32BX50-40S
The AirTAC SAIJ32X50-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. Equipped with a SUS304 stainless steel rod and a PT tapered port, it provides a 402N push force at 0.5 MPa. The integrated -S magnet allows precise position detection using CMSE reed or DMSE electronic sensors mounted in the dual-side sensor grooves.
This model features a 50 mm nominal stroke dialed back by up to 40 mm, creating a highly versatile 10 to 50 mm usable travel window. The rear adjuster acts purely as a mechanical stop for end-position tuning during commissioning; it does not lock or hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-40S |
|---|---|
| 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 SAIJ32BX50-40S
| 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 SAIJ32BX50-40S Is Used
Machine Changeover
Dial in the 10 to 50 mm travel window during product-size changeovers without replacing the cylinder or bolting on external stops.
Commissioning Tuning
Fine-tune the retract end-position precisely at setup using the rear adjuster screw to perfect the mechanical stop.
Light Assembly
Deliver 402N of push force at 0.5 MPa for compact assembly tasks, utilizing the SUS304 stainless rod for corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-40S the Right Cylinder?
Choose this 32 mm bore when you need 402N of push force at 0.5 MPa, or step up to the 40 mm bore if your application requires 628N. The adjustable 10 to 50 mm travel window is ideal for machine setups requiring variable end-stops or product-size changeovers without physically swapping cylinders or adding external stops. Unlike a fixed-stroke SAI cylinder, this rear screw allows rapid fine-tuning at commissioning. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. For exact ISO 15552 replacement, match the 32 mm bore, 50 mm stroke, 40 mm adjustment, PT 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 SAIJ32BX50-40S FAQ
The 50 mm nominal stroke can be adjusted backward by up to 40 mm via the rear stopper, providing a usable travel window of 10 to 50 mm for fine-tuning end positions.
No, the rear adjuster functions only as a travel stop and does not lock the load without live air pressure. For fail-safe load holding, use an SAIL air-released lock or BSAI clamp-lock cylinder.
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Standard models usually ship in 3-4 days.
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