Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 80mm 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
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40
The AirTAC SAIJ160X80-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to fine-tune the travel end-position during commissioning. With a nominal 80 mm stroke and a 40 mm adjustment range, it provides a usable travel window of 40-80 mm without requiring external stops. It fits a heavy-duty force class, delivering 10053 N of pull force at 0.5 MPa and up to 18095 N at 0.9 MPa.
This model features a SUS304 stainless steel rod for superior corrosion resistance and ships without a magnet. The extruded aluminum barrel includes sensor grooves on both sides should you later require position detection. The rear adjuster functions purely as a travel stop to set deceleration and end-points; it is not a locking device and will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 80 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 SAIJ160BX80-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×80 | 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 SAIJ160BX80-40 Is Used
Heavy Press Tuning
Dial in the exact 40-80 mm travel needed for different material thicknesses during pressing operations without adding external stopper blocks.
Machine Changeover
Quickly adjust the rear stopper to accommodate new product sizes on a packaging or clamping line, reducing setup downtime.
Variable End-Stop Actuation
Use the fine-tuned end-position to consistently trigger downstream mechanisms at precise intervals in heavy-duty assembly cells.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX80-40 the Right Cylinder?
Choose this 160 mm bore when you need substantial thrust, such as 10053 N pull at 0.5 MPa, but require precise end-position tuning for varying product sizes. If your application requires less force, stepping down to a 100 mm bore offers 3681 N of pull at 0.5 MPa. The adjustable stroke is ideal for machine changeovers where a fixed-stroke SAI cylinder would require shimming or swapping.
Because the 80 mm stroke is well below the 300 mm threshold, side-load stress on the 40 mm rod is minimal, though unsupported loads should still be guided. For applications requiring true load-holding without continuous air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster only acts as a stop. This cylinder uses a PT tapered port, supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, and is dimensionally interchangeable with ISO 15552 cylinders.
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 SAIJ160BX80-40 FAQ
The 160 mm bore generates a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw lets you shorten the 80 mm nominal stroke by up to 40 mm, providing a usable travel window of 40-80 mm. It acts as a travel stop to tune the end position and does not lock the load without live air.
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