Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20S 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 SAIJ160AX70-20S
The AirTAC SAIJ160X70-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 50 to 70 mm, allowing you to dial back the 70 mm nominal stroke by up to 20 mm during commissioning. Built to deliver substantial force, it generates 14074 N of push thrust at 0.7 MPa.
This specific SKU is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet enables precise end-position detection using AirTAC CMSE reed or DMSE electronic solid-state switches.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20S |
|---|---|
| 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 SAIJ160AX70-20S
| 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 SAIJ160AX70-20S Is Used
Press Fine-Tuning
Dial in the exact 50 to 70 mm end position during machine commissioning without adding external stoppers or changing the cylinder.
Product Changeover
Quickly adjust the travel window on automated lines when switching to a new product size, minimizing downtime.
Heavy-Duty Positioning
Move heavy payloads with up to 18095 N of pull force at 0.9 MPa while relying on the -S magnet for solid-state DMSE confirmation.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX70-20S the Right Cylinder?
Choose this 160 mm bore cylinder when an 80 mm bore (providing 4523 N push at 0.9 MPa) cannot generate enough force, but you want to avoid stepping up to a massive 200 mm bore. The adjustable stroke is ideal for fine-tuning end stops during machine setup or product changeover, saving the effort of physically swapping a fixed-stroke SAI cylinder.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. The correct mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. Note that the rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure; for fail-safe load holding, consider an external rod lock or the AirTAC SAIL/BSAI series.
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 SAIJ160AX70-20S FAQ
At 0.9 MPa, this 160 mm bore cylinder provides 18095 N of push thrust and 9425 N of pull thrust. The maximum thrust at 1.0 MPa is 2050 kgf.
The rear adjuster screw lets you shorten the 70 mm nominal stroke by up to 20 mm, creating a usable travel window of 50 to 70 mm. It acts as a mechanical stop and does not lock the load without air pressure.
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