Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-20 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 SAIJ160AX55-20
The AirTAC SAIJ160X55-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 55 mm travel back by up to 20 mm, yielding a precise 35-55 mm usable window. Delivering 10053 N of push force at 0.5 MPa, this heavy-duty bore utilizes a robust 40 mm rod and M36x2 thread to handle substantial side loads. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward position detection.
This configuration uses a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered ports sized at G3/4. Unlike a fixed-stroke SAI, the integrated rear stopper allows you to fine-tune the end position during commissioning without adding external stops. The adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-20 |
|---|---|
| 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 SAIJ160AX55-20
| 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 SAIJ160AX55-20 Is Used
Heavy Clamping Tuning
Dial in the exact clamping depth on heavy fixtures by adjusting the rear stopper from 35 to 55 mm without swapping cylinders.
Short-Stroke Pressing
Apply 10053 N of pressing force at 0.5 MPa while fine-tuning the bottoming position during initial machine commissioning.
Product Changeover
Quickly adapt end-stops for varying product heights on a production line using the 20 mm rear adjustment screw.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX55-20 the Right Cylinder?
Select this 160 mm bore when an application demands high thrust, such as the 14074 N push force available at 0.7 MPa, but requires exact end-position tuning over a short 35-55 mm window. If your setup needs less force, stepping down to a 125 mm bore yields 6136 N at 0.5 MPa. Because the stroke is short, side-load risks are minimal, but always ensure the load is guided externally to prevent binding. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI series instead.
To match this exact ISO 15552 interchangeable cylinder, specify the 160 mm bore, 55 mm stroke, 20 mm adjustment range, PT port thread, and standard mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the SAIJ series omits FB, CA, CB, and CR mounts. This unit lacks a magnet; adding an -S suffix enables CMSE reed or DMSE electronic solid-state sensors.
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 SAIJ160AX55-20 FAQ
At 0.5 MPa, it provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force reaches 18095 N. The operational speed range for this 160 mm bore is 30-500 mm/s.
The rear adjuster acts as a mechanical stop that shortens the 55 mm nominal stroke, providing a usable travel window of 35 to 55 mm. It only sets the end position and does not lock the load without live air pressure.
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