Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50 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 SAIJ160BX70-50
The AirTAC SAIJ160X70-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 14074N of push force at 0.7MPa. Its integrated rear stopper screw allows you to fine-tune the effective travel down from the 70mm nominal stroke, providing a usable 20-70mm adjustment window. This means you can set exact retraction end-positions during commissioning without adding external stops or changing the cylinder body.
Built with a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread, this 160mm bore unit runs at 30-500mm/s. It features variable air cushions at both ends to manage kinetic energy, but note that this pneumatic stopper mechanism does not hold the load without live air pressure. For secure load-holding, you would need to specify a SAIL or BSAI variant.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50 |
|---|---|
| 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 SAIJ160BX70-50
| 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 SAIJ160BX70-50 Is Used
Machine Setup Tuning
Dial in the exact 20-70mm retraction point during initial commissioning to perfect pressing or holding positions without machining new hard stops.
Product Changeover
Quickly adapt the cylinder's effective stroke on the line when swapping in products of slightly different heights, minimizing downtime.
Heavy Assembly Press
Leverage the 14074N push force at 0.7MPa to seat heavy components, using the rear adjuster to prevent over-travel and crushing.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50 the Right Cylinder?
Choose this 160mm bore when your application requires heavy thrust, such as 10053N pull force at 0.5MPa, but demands on-site stroke variability. If your force requirements are lower, stepping down to a 100mm bore yields 5497N push at 0.7MPa. The primary benefit of the SAIJ over a fixed SAI cylinder is the ability to dial in the 20-70mm travel window during machine setup or product changeover. To match this ISO 15552 footprint, confirm the 160mm bore, 70mm stroke, 50mm adjustment, PT G3/4 port, and your desired mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the rod is 40mm thick with an M36x2 thread, it handles high side-loads well, though long unsupported strokes still need external guides.
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 SAIJ160BX70-50 FAQ
At an operating pressure of 0.7MPa, this 160mm bore cylinder generates a push force of 14074N and a pull force of 9425N. At 0.5MPa, it provides 10053N of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 70mm nominal stroke by up to 50mm, creating a usable travel window of 20-70mm. It fine-tunes the end position but does not lock the load without continuous air pressure.
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