Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40S 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 SAIJ160BX280-40S
The AirTAC SAIJ160X280-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 240-280 mm from its 280 mm nominal stroke. It delivers substantial thrust, generating 14074 N of push force and 9425 N of pull force at 0.7 MPa. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes the -S magnet option, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
This variant uses a SUS304 stainless steel piston rod (code B) for superior corrosion resistance and carries a G3/4 PT tapered port. The rear adjuster functions strictly as a mechanical stop to fine-tune the end-of-stroke position during commissioning; it does not lock or hold the load without continuous air pressure. For applications requiring true load-holding, consider the SAIL pneumatic lock or BSAI clamp-lock cylinder series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40S |
|---|---|
| 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 SAIJ160BX280-40S
| 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 SAIJ160BX280-40S Is Used
Variable End-Stop Configuration
Dial in the exact retract position within a 240-280 mm window during machine setup, eliminating the need to physically swap cylinders when adapting to new product dimensions.
Heavy Machinery Changeover
Leverage 14074 N of thrust at 0.7 MPa to push heavy fixtures, using the 40 mm rear adjuster to fine-tune the resting position without installing bulky external mechanical stops.
Corrosive Environment Actuation
Rely on the SUS304 stainless steel rod and double-acting profile barrel for precise, repeatable movement in wash-down or chemically exposed manufacturing settings.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40S the Right Cylinder?
Choose this 160 mm bore when a 100 mm bore (offering 879 N push at 0.5 MPa) is insufficient, but a 200 mm bore (delivering 21991 N push at 0.7 MPa) would be oversized. The 40 mm adjustment range 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. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). At 280 mm stroke, the 40 mm diameter SUS304 rod handles side loads well, but any long unsupported travel still requires an external guide to prevent rod deflection.
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 SAIJ160BX280-40S FAQ
At a 0.7 MPa operating pressure, this 160 mm bore cylinder generates 14074 N of push force and 9425 N of pull force. It can achieve a maximum push force of 18095 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 280 mm nominal stroke by up to 40 mm, providing an effective travel range of 240-280 mm. It only decelerates and sets the end position; it does not hold the load without live air pressure.
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