Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20 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 SAIJ160BX280-20
The AirTAC SAIJ160X280-20 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper, allowing you to dial back the nominal 280 mm stroke to a precise 260-280 mm window. Delivering 10053 N of push force at 0.5 MPa, this extruded aluminum barrel unit handles heavy loads without needing external shims during commissioning.
This configuration uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered ports. It relies on standard variable air cushions at both ends for end-of-stroke deceleration. For load-holding without live air pressure, you must integrate an external rod lock or choose a SAIL or BSAI variant, as the rear adjuster acts purely as a travel stop.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20 |
|---|---|
| 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 SAIJ160BX280-20
| 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 SAIJ160BX280-20 Is Used
Product Changeovers
Dial in the 260-280 mm travel window during line format changes to accommodate different package sizes without swapping hardware.
Heavy Press Positioning
Leverage 10053 N of thrust at 0.5 MPa to seat heavy components, using the rear stopper to nail the exact final position.
Commissioning Calibration
Fine-tune the retract end-stop during initial machine setup to clear mechanical interference without adding external spacers.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-20 the Right Cylinder?
Select this 160 mm bore when a 125 mm cylinder (providing 6136 N push at 0.5 MPa) is insufficient, but a 200 mm bore is too large. The 20 mm adjustment window is ideal for fine-tuning end positions during machine setup or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify the 160 mm bore, 280 mm stroke, PT ports, and your required mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 280 mm stroke is substantial, the 40 mm diameter SUS304 rod and its M36x2 thread provide robust support, but an external guide is still recommended to prevent excessive side-loading on long unsupported travels. Note that this model omits a magnet; adding an -S suffix enables CMSE reed or DMSE electronic sensors in the dual-side barrel grooves.
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 SAIJ160BX280-20 FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder generates 10053 N of push force and 9425 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 2050 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 280 mm nominal stroke down to 260 mm. It sets the end position but does not lock the load; air cushions handle deceleration.
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