Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40 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 SAIJ160BX550-40
The AirTAC SAIJ160X550-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 550mm nominal stroke, creating a 510-550mm usable window. Built with a SUS304 stainless steel rod (option B) and PT tapered ports, it delivers robust performance in demanding environments. It provides substantial thrust, pushing 18095N at 0.9MPa and pulling 9425N at 0.5MPa.
This model incorporates a 40mm diameter carbon steel piston rod and M36x2 rod threads, providing a robust interface that handles high mechanical stress. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE sensors, though this specific SKU is configured without a magnet. The rear adjustment screw acts purely as a mechanical stop to trim the retract position, meaning it will not hold the load without continuous live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40 |
|---|---|
| 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 SAIJ160BX550-40
| 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 SAIJ160BX550-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 510-550mm retract position during machine setup to accommodate varying material thicknesses without adding external stopper blocks.
Product Line Changeover
Quickly adjust the end-stop for different product sizes on a packaging line, leveraging the 40mm adjustment range to maintain cycle timing.
Large Assembly Jigs
Use the heavy 18095N push force at 0.9MPa to seat large components, relying on the rear screw to set the precise final depth.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-40 the Right Cylinder?
Choose this 160mm bore cylinder when an application requires heavy thrust combined with precise end-position tuning during commissioning or product changeover. If you need slightly less force, stepping down to a 125mm bore yields 11045N of push at 0.9MPa, whereas moving up to a 200mm bore provides 28274N. The adjustable 510-550mm travel window is ideal for setups requiring variable end-stops without swapping the entire cylinder.
Because the 550mm stroke is substantial, the unsupported rod length increases susceptibility to side-loading; always use an external guide to prevent premature seal wear. This SAIJ model supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. For load-holding without live air pressure, the rear stopper is insufficient, and you should instead specify an SAIL (air-released lock) or BSAI (clamp-lock) cylinder. This model operates at speeds of 30-500mm/s.
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 SAIJ160BX550-40 FAQ
At 0.9MPa operating pressure, this 160mm bore cylinder provides a push force of 18095N and a pull force of 16965N. At 0.5MPa, it delivers 10053N of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 550mm nominal stroke by up to 40mm, resulting in a usable travel window of 510-550mm. It is a stop only and does not lock the load without live air pressure.
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