
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 85mm 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 SAIJ160X85-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. By turning the external stopper screw, you can shorten the effective travel, creating a usable stroke window of 55-85 mm without replacing the cylinder. It delivers substantial force, offering 9425 N of pull thrust at 0.5 MPa and up to 18095 N at 0.9 MPa.
This variant features a SUS304 stainless steel rod for corrosion resistance and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. Remember that the rear adjuster acts purely as a travel stop to decelerate the piston; it does not lock the load, so live air pressure is required to hold position.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 85 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. |
| ×85 | 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 55-85 mm insertion depth for bearings or pins during machine setup, allowing quick adjustments for different part sizes without swapping cylinders.
Rapidly reconfigure end-stops on packaging lines when switching product formats, using the rear adjuster to accommodate varying package dimensions on the fly.
Secure large workpieces with up to 18095 N of force at 0.9 MPa, fine-tuning the clamping reach to accommodate different fixture heights.
Choose this 160 mm bore when the 100 mm bore (providing 3681 N pull at 0.5 MPa) is insufficient for heavy pressing or clamping. The adjustable stroke is ideal for product changeovers on a line, letting you dial in the exact end position during commissioning rather than machining external stops. If you need true load-holding without continuous air pressure, consider the SAIL or BSAI series instead.
For an ISO 15552 replacement match, specify a 160 mm bore, 85 mm nominal stroke, 30 mm adjustment range, PT port thread, and your required mounting bracket from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 40 mm rod and M36x2 thread carry high side-load capacity, standard applications are well supported, though any long unsupported stroke over 300 mm still requires an external guide.
Quick checklist
At 0.5 MPa it provides 10053 N push and 9425 N pull. 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 acts as a mechanical stop that trims the effective travel back from the 85 mm nominal stroke down to as little as 55 mm, allowing precise end-position tuning at commissioning.
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