Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S 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 SAIJ160BX275-20S
The AirTAC SAIJ160X275-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks requiring precise end-position tuning. It delivers a robust 14074N push force at 0.7 MPa and features a rear stopper screw that allows you to trim the effective travel, providing a usable adjustment window of 255 to 275 mm. This mechanism enables fine-tuning during commissioning or product changeovers without swapping out the entire unit.
Built with a SUS304 stainless steel rod for superior corrosion resistance, this model includes a magnet for position sensing via CMSE reed and DMSE electronic switches. The extruded aluminum barrel integrates sensor grooves on both sides, and the G3/4 PT tapered port ensures high flow capacity for rapid actuation at speeds up to 30-500 mm/s.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S |
|---|---|
| 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 SAIJ160BX275-20S
| 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 SAIJ160BX275-20S Is Used
Machine Changeover
Dial in the 255-275 mm stroke window during product size transitions without physically replacing the cylinder or adding external mechanical stops.
Heavy Pressing
Leverage the 14074N push force at 0.7 MPa for heavy assembly operations while using the rear screw to set exact material contact depth.
Automated Positioning
Integrate CMSE or DMSE sensors in the dual-side barrel grooves to confirm retract positions within the adjustable travel window.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-20S the Right Cylinder?
Select this 160 mm bore cylinder when an application demands high thrust—stepping down to a 125 mm bore drops the 0.7 MPa push force to 8590N. Choose this adjustable-stroke SAIJ variant over a fixed SAI when you need to dial in a variable end-stop on the fly. For exact ISO 15552 replacement matching, verify the 275 mm stroke, 20 mm adjustment range, PT G3/4 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting options, and the -S magnet requirement.
Because the 275 mm stroke exceeds 300 mm when fully extended, long unsupported loads require an external guide to prevent rod side-loading. Remember that the rear adjuster acts only as a travel stop; it will not hold a load without live air. For true fail-safe load holding, consider an external pilot-operated check valve or the AirTAC BSAI clamp-lock series.
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 SAIJ160BX275-20S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates a push force of 14074N and a pull force of 9425N. It can deliver up to 18095N push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 275 mm nominal stroke, giving a usable window of 255 to 275 mm. It functions as an end-position stopper and does not lock the load without live air pressure.
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