
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-20 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.
The AirTAC SAIJ160X550-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 530 to 550 mm usable travel window. Delivering 10053 N of push force at 0.5 MPa, it handles heavy-duty positioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This specific SKU uses a SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The rear adjustment screw allows you to fine-tune the retract end-position at commissioning without adding external stops. The adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX550-20 |
|---|---|
| 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.
| 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. |
| ×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.
Dial in the exact 530-550 mm end-stop during machine setup to accommodate varying material thicknesses without changing cylinders.
Quickly adjust the retract position on automated lines when switching between different product sizes, saving retooling time.
Manage heavy 10053 N loads over a 550 mm travel distance while relying on external guides to handle rod side-load.
Choose this 160 mm bore when a 100 mm bore (providing 3927 N at 0.5 MPa) lacks the thrust for your heaviest loads, but a 200 mm bore is excessive. The adjustable 20 mm travel window is ideal for product changeovers where exact end-of-stroke positioning varies. For load-holding without live air, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a lock.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 550 mm stroke, PT port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interface. Because the 550 mm stroke is long, the 40 mm rod diameter and M36x2 thread will still experience deflection; always use an external guide to prevent side-loading damage.
Quick checklist
At 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. It can reach up to 18095 N push force at 0.9 MPa.
The rear adjuster screw lets you shorten the 550 mm nominal stroke by up to 20 mm, creating a 530 to 550 mm travel window. It acts as a mechanical stop for end-position tuning and is not a lock.
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