Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-20 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 SAIJ160BX270-20
The AirTAC SAIJ160X270-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty automation. Operating at 0.7 MPa, it generates 14074N of push force and 9425N of pull force. A built-in variable air cushion at both ends manages deceleration of large loads across its 30-500 mm/s operating speed range.
This specific SKU features a 20mm adjustment mechanism that allows the effective travel to be fine-tuned within a 250-270mm window during commissioning. Configured with a SUS304 stainless steel rod for corrosion resistance and PT tapered ports, it uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR options.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-20 |
|---|---|
| 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 SAIJ160BX270-20
| 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 SAIJ160BX270-20 Is Used
Heavy Pressing
Dial in the exact 250-270mm travel window to ensure precise pressing force on large assemblies without repositioning the entire fixture.
Machine Setup
Fine-tune the retract end-stop during initial commissioning to accommodate mechanical tolerances in heavy machinery frames.
Product Changeover
Quickly adapt the cylinder's effective stroke on the production line when switching between parts of slightly different heights.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-20 the Right Cylinder?
Select this 160mm bore when an application requires substantial force that a 100mm bore (5497N push at 0.7 MPa) cannot provide, but without stepping up to a 200mm unit. The adjustable stroke is ideal for product changeovers where the exact end-of-stroke position varies slightly, eliminating the need to physically swap cylinders or bolt on external stops. For any stroke at or above 300mm, an external guide is recommended to manage side-load stress on the 40mm rod.
When specifying a replacement, verify the 160mm bore, 270mm stroke, 20mm adjustment range, PT port thread, and the correct mounting style. Keep in mind the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series instead.
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 SAIJ160BX270-20 FAQ
At 0.7 MPa, this 160mm bore cylinder provides a push force of 14074N and a pull force of 9425N. It can deliver a maximum push force of 18095N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 270mm stroke by up to 20mm, creating a usable travel window of 250-270mm. This stopper only sets the end position and must not be used as a load-holding lock.
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