Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50 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 SAIJ160BX270-50
The AirTAC SAIJ160X270-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 220 to 270 mm. This built-in stopper allows you to fine-tune the retract end position at commissioning without adding external stops or swapping the unit out. It features a SUS304 stainless steel rod and PT tapered port threads.
Delivering substantial thrust, this 160 mm bore generates 14074 N of push force at 0.7 MPa and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of reed or solid-state switches. Remember that the rear adjuster acts only as a travel stop to set deceleration endpoints; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50 |
|---|---|
| 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 SAIJ160BX270-50
| 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 SAIJ160BX270-50 Is Used
Heavy Press Tuning
Dial in the exact 220-270 mm retract stop during machine commissioning to set precise pressing depths on heavy assemblies without external shims.
Product Changeover
Quickly adjust the end-of-stroke position on a packaging line when switching to a different sized product, using the 50 mm rear adjustment window.
Material Handling
Manage heavy workpiece positioning with 14074 N of thrust at 0.7 MPa while fine-tuning the transfer distance to match varying machine configurations.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50 the Right Cylinder?
Select this 160 mm bore model when your application requires heavy thrust between the 100 mm bore (5497 N push at 0.7 MPa) and the 200 mm bore (21991 N push at 0.7 MPa). The adjustable stroke is ideal for product changeovers on a line, letting you dial in the exact 220-270 mm travel window on the fly instead of installing a fixed-stroke SAI cylinder. To match this ISO 15552 interchangeable cylinder, specify the 160 mm bore, 270 mm stroke, 50 mm adjustment, PT G3/4 port, and your required mounting from the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
Because the 270 mm stroke is substantial, the 40 mm rod diameter handles high side loads, but an external guide rail is still recommended for heavy unsupported loads. If your machine requires true load-holding without continuous live air, the rear adjuster will not act as a brake; you should instead look at the SAIL air-released lock or BSAI clamp-lock variants.
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 SAIJ160BX270-50 FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides 14074 N of push force and 13274 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
The rear external adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 270 mm nominal stroke down to 220 mm. This creates a 220-270 mm adjustable window for fine-tuning end positions without replacing the cylinder.
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