Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S
The AirTAC SAIJ160X450-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 14074N of push force at 0.7 MPa. It features a SUS304 stainless steel rod and a PT tapered port thread. By integrating the -S magnet, this unit directly supports AirTAC CMSE reed and DMSE electronic sensors housed within the dual-side extruded aluminum barrel grooves.
The integrated rear stopper allows you to trim the nominal 450mm travel back by up to 50mm, creating a precise 400-450mm usable positioning window. This mechanism acts strictly as a travel stop for end-position tuning and relies on the variable air cushions for deceleration; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 450 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 SAIJ160BX450-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SAIJ160BX450-50S Is Used
Heavy Press Tuning
Dial in the exact 400-450mm end-stop during heavy press commissioning to accommodate material thickness variations without machining new hard stops.
Product Changeover
Adjust the retract position on the fly during packaging line format changes to handle different pallet or container sizes efficiently.
Assembly Station Setup
Fine-tune the stroke end position during initial assembly station setup to perfect component seating forces without replacing the entire cylinder.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-50S the Right Cylinder?
Selecting this 160mm bore over a smaller 125mm neighbor jumps the 0.5 MPa push thrust from 6136N to 10053N, while stepping up to a 200mm bore yields 15708N. The adjustable stroke is ideal for machine changeovers, letting you fine-tune the 400-450mm travel window at commissioning without swapping hardware or adding external stops. Because the 450mm stroke is substantial, the 40mm rod diameter requires an external guide to prevent excessive side-loading on the piston.
For a true ISO 15552 replacement match, verify the 160mm bore, 450mm stroke, 50mm adjustment range, PT ports, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. If your application requires the load to be held mechanically without live air, utilize an external rod lock or switch to the AirTAC SAIL or BSAI series instead of relying on this adjuster.
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 SAIJ160BX450-50S FAQ
At an operating pressure of 0.7 MPa, this 160mm bore cylinder provides 14074N of push force and 13202N of pull force. At the maximum rated pressure of 1.0 MPa, it achieves a push force of 20000N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 450mm nominal stroke by up to 50mm, providing a usable travel window of 400-450mm. It functions alongside the air cushions to set the end position and is not a locking mechanism.
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