Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 105mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke105 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S
The AirTAC SAIJ50X105-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 85 to 105 mm. Delivering 982 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod (code A) for superior corrosion resistance. The integrated magnet (-S) supports precise position detection.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning without adding external stops. It features a PT tapered port and variable air cushions at both ends to decelerate the load smoothly. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 105 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×105 | 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 SAIJ50 Adjustable Cylinder SAIJ50AX105-20S Is Used
Product Changeovers
Dial in the 85-105 mm travel window during format size changes on a packaging line without swapping hardware.
End-Stop Tuning
Fine-tune the retract position at machine commissioning to perfect pressing or clamping depth.
Assembly Stations
Handle variable part sizes on an assembly conveyor using the 982 N push force and rear stopper.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-20S the Right Cylinder?
Choose this 50 mm bore when an application requires 982 N push force at 0.5 MPa, stepping up from a 40 mm bore (628 N) or down from a 63 mm bore (1559 N). The 20 mm adjustment window is ideal for product changeovers, letting you dial in the exact end-stop mechanically rather than swapping a fixed-stroke SAI cylinder. For stroke lengths of 300 mm or more, always use an external guide to support the load.
When specifying an ISO 15552 replacement, match the 50 mm bore, 105 mm stroke, 20 mm adjustment, PT port, and -S magnet. The rear screw acts purely as a travel stop, not a lock; the SAIJ cannot hold a load without live air. For true load-holding, select the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ50 Adjustable Cylinder SAIJ50AX105-20S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster screw allows you to shorten the nominal 105 mm stroke by up to 20 mm, creating an 85-105 mm travel window. It functions as a mechanical stop and does not lock the load without air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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