Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S
The AirTAC SAIJ160X280-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the retract end position during commissioning. With a nominal 280 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 260-280 mm. This specific configuration uses a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes a magnet for position sensing.
Delivering a robust 14074 N push force at 0.7 MPa, it handles heavy loads with ease. The extruded aluminum barrel features sensor grooves on both sides, directly compatible with CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop to decelerate the stroke end, meaning it will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 280 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 SAIJ160BX280-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×280 | 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 SAIJ160BX280-20S Is Used
Product Changeover
Quickly adjust the 260-280 mm travel window during product size changes on a packaging line without replacing the cylinder or adding external mechanical stops.
Heavy Pressing
Leverage the 14074 N push force at 0.7 MPa for heavy pressing and forming operations, using the rear stopper to fine-tune the final end position precisely.
Corrosive Environments
Utilize the SUS304 stainless steel rod option B in washdown or mildly corrosive manufacturing environments while tracking position with DMSE electronic sensors.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20S the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires high thrust—stepping up from a 125 mm bore yields 8590 N at 0.5 MPa, while stepping down to an 80 mm bore offers 3518 N at 0.7 MPa. The adjustable stroke is ideal for product changeovers on a line, allowing you to dial in the exact end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, this adjuster is not a lock; you would need to specify an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock. When replacing an ISO 15552 cylinder, match the 160 mm bore, 280 mm stroke, PT tapered port, 20 mm adjustment, and the -S magnet requirement. At 280 mm stroke, the 40 mm rod diameter carries excellent side-load capacity, but an external guide is still recommended for heavy offset loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ160BX280-20S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can deliver up to 18095 N push at 0.9 MPa.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 20 mm. This creates a 260-280 mm usable travel window for fine-tuning at commissioning, without acting as a load-holding lock.
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