Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20S 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 SAIJ32BX50-20S
The AirTAC SAIJ32X50-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 50 mm stroke that can be dialed back by up to 20 mm, yielding a 30-50 mm usable travel window for precise end-position tuning. Operating at 0.15-1.0 MPa, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for use with CMSE reed and DMSE electronic sensors. It is equipped with PT tapered ports and adjustable air cushions at both ends. The rear adjustment screw acts purely as a travel stop for commissioning flexibility, meaning it will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20S |
|---|---|
| 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 SAIJ32BX50-20S
| 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 SAIJ32BX50-20S Is Used
Machine Setup Tuning
Dial in the exact 30-50 mm end-position during commissioning without swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adjust the travel window on packaging lines when product sizes change, using the rear stopper screw to set new limits.
End-Stop Calibration
Fine-tune the retract end position to accommodate mechanical tolerances and ensure precise placement on automated lines.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX50-20S the Right Cylinder?
Choose this 32 mm bore when an application requires precise mechanical end-stop tuning without adding external stops. If your setup needs greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The adjustable stroke is ideal for product changeovers, allowing you to fine-tune the 30-50 mm travel window directly on the machine. This SAIJ model supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. To achieve a true ISO 15552 replacement match, verify the 50 mm stroke, 20 mm adjustment, PT port thread, and the -S magnet option. The 12 mm rod and M10x1.25 thread handle moderate side loads, though unsupported longer strokes still require an external guide.
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 SAIJ32BX50-20S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it delivers 82 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 50 mm nominal stroke by up to 20 mm. This creates a 30-50 mm usable travel window, allowing precise end-position tuning during commissioning without replacing the cylinder.
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