Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 55mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20
The AirTAC SAIJ160X55-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust performance with a 10053N pull force at 0.5MPa. By turning the integrated adjustment screw, you can shorten the nominal 55mm travel by up to 20mm, creating a precise 35-55mm usable stroke window for exact end-position tuning.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×55 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX55-20 Is Used
Heavy-Duty Press Fitting
Dial in the exact 35-55mm travel needed to seat bearings or pins during assembly, adjusting on the fly for different part heights without changing the cylinder.
Machine Changeover
Quickly reconfigure the end-stop position on automated lines when switching between product variants, using the rear screw to adapt the stroke precisely.
Variable Positioning Stops
Establish precise mechanical retract limits for heavy material handling equipment, ensuring repeatable positioning independent of sensor drift.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20 the Right Cylinder?
Choose this 160mm bore when you require heavy thrust that exceeds the 6136N pull force of the 125mm bore at 0.5MPa. The adjustable stroke is highly beneficial for machine setup and product changeovers, allowing you to fine-tune the retract end-stop without swapping cylinders or adding external stops. For applications requiring position holding without live air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster acts only as a travel stop and does not lock the load.
With a 55mm nominal stroke, side-load stress is minimal, but always ensure proper guiding for heavy loads. The standard speed range for this 160mm bore is 30-500mm/s, supported by 50mm air cushions at both ends.
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 SAIJ160 Adjustable Cylinder SAIJ160BX55-20 FAQ
At 0.5MPa operating pressure, this 160mm bore cylinder provides a push force of 10053N and a pull force of 9425N. At the maximum 1.0MPa pressure, it delivers up to 2050kgf.
The rear adjuster screw allows you to mechanically trim the 55mm nominal stroke back by up to 20mm, providing an effective travel window of 35 to 55mm. This stopper sets the end position but does not lock the load without air pressure.
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