
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm stroke, G3/8 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 SAIJ80X145-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of push force at 0.5MPa and provides a usable travel window of 45-145mm, allowing you to dial back the nominal 145mm stroke by up to 100mm during commissioning without swapping hardware.
This extruded aluminum body includes sensor grooves on both sides for CMSE or DMSE switches, though this specific SKU omits the magnet. It uses a robust 25mm carbon steel rod with an M20x1.5 thread, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 45 to 145mm end-position instantly when switching between product sizes on a packaging line without changing the cylinder.
Fine-tune the retract end-position during commissioning to perfect the tooling alignment, avoiding the need for external mechanical stops.
Provide flexible retraction limits for automated clamping or pressing stations where the required travel depth varies between workpieces.
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (1559N push at 0.5MPa) but less than a 100mm bore (3927N). The 100mm adjustment range is ideal for product-size changeovers on a line, letting operators set variable end-stops on the fly instead of installing fixed SAI cylinders. Because the 145mm stroke is under 300mm, side-load stress is manageable, but always guide the load externally for optimal 30-800mm/s speed control.
To match this ISO 15552 interchangeable cylinder for a retrofit, confirm the 80mm bore, 145mm nominal stroke, 100mm adjuster, PT tapered port thread, and the lack of a magnet. Remember that the rear adjuster acts only as a travel stop to work with the air cushion for deceleration; it does not hold the load without live air. For true load-holding, select a SAIL or BSAI series cylinder.
Quick checklist
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel down from the 145mm nominal stroke to as little as 45mm. It sets the end-position and works with the air cushion for deceleration, but it does not lock the load without continuous air pressure.
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