Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S
The AirTAC SAIJ160X550-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to dial back the nominal 550 mm stroke to anywhere within a 450-550 mm usable travel window. Built with a robust 40 mm SUS304 stainless steel rod and PT tapered ports, it delivers substantial thrust up to 18095 N at 0.9 MPa. The extruded aluminum barrel features sensor grooves on both sides, and because this SKU includes the -S magnet, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers or commissioning fine-tuning. It supports a reduced set of ISO 15552 mounting interfaces including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Note that the rear adjuster acts strictly as a travel stop and deceleration point, not a lock, meaning it will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 550 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 SAIJ160BX550-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×550 | 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 SAIJ160BX550-100S Is Used
Large Fixture Positioning
Fine-tune the 450-550 mm travel window during machine setup to perfectly seat large castings or heavy fixtures without changing cylinder hardware.
Product Changeover Stops
Adjust the rear stopper on the fly to accommodate different pallet sizes or package lengths moving down a high-thrust transfer line.
Heavy-Duty Forming Press
Leverage the 18095 N push force at 0.9 MPa to form materials, using the adjustable end-stop to control the exact depth of the stroke.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-100S the Right Cylinder?
Selecting this 160 mm bore cylinder makes sense when your application requires the 10053 N pull force at 0.5 MPa or the maximum 2050 kgf at 1.0 MPa, combined with on-the-fly end-position tuning. If your setup only needs the 6136 N push force at 0.5 MPa, stepping down to a 125 mm bore saves space and air consumption; conversely, moving to a 200 mm bore yields 15708 N at 0.5 MPa for heavier payloads. The 550 mm stroke falls well within the 1500 mm maximum standard stroke for this bore, but because it exceeds 300 mm, the long unsupported travel demands an external guide to prevent excessive side-loading on the SUS304 rod.
Choose the SAIJ adjustable format over a fixed-stroke SAI when you need variable end-stops for different product sizes on the same line. To match this configuration for an ISO 15552 replacement, ensure you specify the 160 mm bore, 550 mm stroke, 100 mm adjustment range, PT port threads, the desired mounting subset, and the -S magnet option. For applications requiring true load-holding without continuous air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock cylinders instead, as the SAIJ adjuster cannot secure a suspended load.
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 SAIJ160BX550-100S FAQ
At 0.5 MPa it provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N, with a maximum rated force of 2050 kgf at 1.0 MPa.
The rear adjuster screw allows you to mechanically shorten the 550 mm nominal stroke, providing a usable travel window between 450 mm and 550 mm. This stopper sets the end position but does not lock the load without live air pressure.
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