
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX850-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 850mm 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.
The AirTAC SAIJ160X850-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 14074N of push force at 0.7 MPa. Its 850 mm nominal stroke can be dialed back by up to 75 mm, creating a precise 775-850 mm usable travel window for product changeovers without swapping hardware. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions while omitting tie-rods.
This SKU utilizes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads with a G3/4 connection. The rear stopper screw acts solely as a travel end-position setter; it does not lock or hold the load without continuous live air pressure. For position holding, an external pilot-operated check valve or a related SAIL lock cylinder is required.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX850-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 850 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 | 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×850 | 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.
Dials in the 775-850 mm retraction point during setup to accommodate different part lengths on a heavy-duty machining center.
Adjusts the stroke on packaging lines to handle varying box sizes without physically replacing the cylinder or adding spacers.
Fine-tunes the extend position of a 14074N press operation at 0.7 MPa, ensuring precise contact depth during commissioning.
Select this 160 mm bore when an application requires heavy thrust that exceeds the 11045N push capacity of the 125 mm variant at 0.7 MPa, but does not necessitate stepping up to the 200 mm bore. The adjustable 775-850 mm window is ideal for commissioning fine-tune adjustments on long-stroke machinery, allowing operators to set variable end-stops on the fly rather than machining external stops or reverting to a fixed-stroke SAI cylinder.
Because the 850 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread provide robust support, yet an external guide is still recommended to prevent excessive side-loading on the piston. When specifying a replacement, match the 160 mm bore, 850 mm stroke, 75 mm adjustment, PT port thread, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that FB, CA, CB, and CR mounts are not available for this SAIJ series.
Quick checklist
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder provides a push force of 14074N and a pull force of 9425N. At 0.9 MPa, the push force increases to 18095N.
The rear adjuster screw allows you to shorten the 850 mm nominal stroke by up to 75 mm, providing a usable travel window of 775 to 850 mm. This stopper sets the end position but does not hold the load without live air pressure.
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