Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20
The AirTAC SAIJ160X240-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the end position. It provides a usable travel window of 220 to 240 mm, enabling precise retraction stops during commissioning without adding external stops. The 160 mm bore delivers robust thrust, pushing 14074 N at 0.7 MPa and peaking at 18095 N at 0.9 MPa.
This variant is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning of CMSE reed or DMSE electronic sensors. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 240 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 SAIJ160BX240-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×240 | 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 SAIJ160BX240-20 Is Used
Heavy Press Tuning
Dial in the exact 220-240 mm retract distance during heavy press setup to accommodate varying material thicknesses without changing the cylinder.
Product Changeover
Quickly adjust the end-stop position on a packaging line when switching to a new product size, using the rear screw rather than swapping hardware.
Machine Commissioning
Fine-tune the final retract position during initial machine commissioning to perfectly align heavy tooling without adding external stopper blocks.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX240-20 the Right Cylinder?
Choose this 160 mm bore when your application requires heavy thrust between 10053 N at 0.5 MPa and 18095 N at 0.9 MPa. If you need less force, stepping down to a 125 mm bore yields 8590 N at 0.7 MPa. The adjustable stroke is ideal for product changeovers where the exact retract distance varies slightly, replacing the need to swap a fixed-stroke SAI cylinder. Because this is a standard 240 mm stroke under the 1500 mm maximum, it is readily available.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 240 mm nominal stroke, 20 mm adjustment range, PT G3/4 port, and the desired mounting bracket from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that SAIJ omits FB, CA, CB, and CR mounts. For applications requiring the rod to hold a load without continuous air pressure, this cylinder is insufficient; consider the SAIL air-released lock or BSAI clamp-lock instead. The 40 mm rod and M36x2 thread handle high side loads, but any long unsupported stroke still requires an external guide.
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 SAIJ160BX240-20 FAQ
It generates a push force of 10053 N at 0.5 MPa and 18095 N at 0.9 MPa. The pull force is 9425 N at 0.5 MPa and 15080 N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the 240 mm nominal stroke down to 220 mm. It functions as a mechanical stop to set the retract end position and does not lock the load.
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