Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S
The AirTAC SAIJ160X270-30-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, providing a usable travel window of 240 to 270 mm. Built with a SUS304 stainless steel rod and a -S magnet for CMSE reed and DMSE electronic sensors, it delivers a robust 14074 N push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This model uses PT tapered port threads and features variable air cushions at both ends to manage kinetic energy. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 270 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 SAIJ160BX270-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×270 | 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 SAIJ160BX270-30S Is Used
End-Position Tuning
Dial in the exact retract distance within the 240-270 mm window during machine commissioning without swapping cylinders.
Product Changeover
Quickly adjust the stroke stop on a packaging line to handle different carton sizes or material thicknesses.
High-Force Pressing
Execute heavy pressing or forming operations requiring up to 14074 N of push force at 0.7 MPa with precise end-stop control.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-30S the Right Cylinder?
Choose this 160 mm bore when an application requires high thrust (14074 N at 0.7 MPa) that exceeds the 5497 N push force of a 100 mm bore, but without stepping up to the massive 21991 N output of a 200 mm cylinder. The adjustable stroke is ideal for machine setups requiring exact end-position tuning across a 240-270 mm window. For any load holding without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a lock.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 270 mm nominal stroke, 30 mm adjustment, PT port threads, and the -S magnet requirement. Because the 270 mm stroke is substantial, ensure external guiding is used to prevent excessive side-loading on the SUS304 rod. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, 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 SAIJ160BX270-30S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder generates a push force of 14074 N and a pull force of 9425 N. It can deliver up to 18095 N push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, creating a usable travel window of 240 to 270 mm. This mechanical stop fine-tunes the retract end position but does not lock the load without continuous air pressure.
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