Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20
The AirTAC SAIJ160X70-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 10053N of push force at 0.5 MPa. It features a SUS420J2 stainless steel rod and PT tapered ports. By turning the rear screw, you achieve a usable travel window of 50-70mm, allowing precise end-position tuning without swapping hardware.
This adjustable stopper is strictly a travel limit and works alongside variable air cushions at both ends to decelerate the load; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 70 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 SAIJ160AX70-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×70 | 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 SAIJ160AX70-20 Is Used
Product Changeover
Dial in the 50-70mm travel window during format changes on a packaging line, using the rear screw to set new end positions rapidly.
Press Fit Tuning
Fine-tune the pressing depth of heavy assemblies at commissioning without adding external mechanical stops to the fixture.
Variable End Stops
Accommodate multiple part sizes on a single conveyor station by adjusting the stroke back by up to 20mm as needed.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20 the Right Cylinder?
Choose this 160mm bore when an 80mm bore (2513N push at 0.5 MPa) is insufficient but you need a compact 70mm nominal stroke with 20mm of rearward adjustment for product-size changeovers. The fixed-stroke SAI is better if your end-stop never changes, whereas the SAIJ excels in commissioning flexibility. To replace an ISO 15552 cylinder, match the 160mm bore, 70mm stroke, PT port thread, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting. Note that the 40mm rod handles high side loads, but an external guide is recommended if stroke exceeds 300mm.
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 SAIJ160AX70-20 FAQ
At 0.5 MPa operating pressure, this 160mm bore cylinder provides 10053N of push force and 9425N of pull force. It can reach up to 18095N push at 0.9 MPa.
The rear adjuster acts as a mechanical stop, allowing you to trim the 70mm nominal stroke back by up to 20mm, creating a 50-70mm usable travel window. It limits the retract position but does not lock the load without air pressure.
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