
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX115-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ160X115-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 115 mm nominal travel by up to 50 mm. This creates a precise 65-115 mm usable stroke window for fine-tuning end positions during commissioning. The barrel features sensor grooves on both sides, and because this SKU includes the -S magnet option, it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback.
This model uses a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. The PT tapered port thread ensures a tight, reliable pneumatic seal. As an extruded aluminum profile cylinder, it is dimensionally interchangeable per ISO 15552 standards. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX115-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 115 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×115 | 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.
Dial in the exact end-of-stroke contact force on heavy presses by adjusting the 50 mm travel window during setup.
Quickly adapt automated machinery to different product sizes by repositioning the rear stopper without changing the cylinder.
The adjustable stroke is selected over a fixed SAI cylinder when machine setups require product-size changeovers or commissioning fine-tunes without swapping hardware. For load-holding without live air pressure, this plain cylinder is insufficient since the adjuster is only a travel stop, not a lock; you should look to the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 115 mm stroke, 50 mm adjustment range, PT G3/4 port, and the -S magnet requirement. Mounting options for this series include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The robust 40 mm rod and M36x2 thread handle high side loads well, but even with this heavy-duty build, long unsupported strokes still require an external guide to prevent rod binding.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the 115 mm nominal stroke by up to 50 mm, providing a usable travel window of 65-115 mm. It only sets the travel end and does not hold the load without live air pressure.
At a maximum 1.0 MPa, it can deliver up to 2050 kgf.
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