Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20
The AirTAC SAIJ160X275-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 255-275 mm usable travel window, allowing you to dial back the nominal 275 mm stroke by up to 20 mm during commissioning. Equipped with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 10053 N pull force at 0.5 MPa.
Because the rear adjuster acts strictly as a mechanical stop and does not lock the load, you must maintain live air to hold position. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR styles.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 275 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 SAIJ160BX275-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×275 | 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 SAIJ160BX275-20 Is Used
Machine Changeover
Fine-tune the 255-275 mm travel window rapidly during product size changes without physically swapping out the actuator.
Heavy Forming End-Stop
Leverage the 10053 N pull force for heavy pressing tasks while using the rear screw to precisely set the retraction end-position.
Variable Assembly Stops
Adjust the travel end on the fly for multi-variant assembly lines, relying on the robust 40 mm SUS304 rod to resist deflection.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20 the Right Cylinder?
Choose this 160 mm bore when your application requires high thrust, such as the 10053 N pull force at 0.5 MPa, but still needs fine end-position tuning for product changeovers. If your force requirements are lower, stepping down to a 125 mm bore yields 5734 N of pull force, whereas moving up to a 200 mm bore provides 15080 N. The adjustable stroke prevents the need to swap cylinders or bolt on external stops when refining the end position.
When replacing an ISO 15552 cylinder, match the 275 mm stroke, 20 mm adjustment range, PT port threads, and SUS304 rod material. Note that this configuration does not include a magnet (-S), so position sensing is not possible without modification. For strokes of 275 mm and beyond, the 40 mm rod diameter handles side loads well, but an external guide is still recommended for unsupported loads.
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 SAIJ160BX275-20 FAQ
At 0.5 MPa operating pressure, this 160 mm bore cylinder generates 10053 N of pull force and 14074 N of push force. The maximum operating pressure is 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 20 mm, creating a 255-275 mm travel window. It functions only as a travel stop and does not lock or hold the load without continuous air pressure.
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