
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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 SAIJ80X800-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 4523N of push force at 0.9 MPa and provides a usable travel window of 700-800mm, letting you dial back the nominal 800mm stroke by up to 100mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without swapping components; it does not hold the load without live air pressure. For position holding without continuous air, an external pilot-operated check valve or a related SAIL lock cylinder is required.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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. |
| ×800 | 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 700-800mm travel window during format size changes on a packaging line without replacing the entire cylinder.
Fine-tune the retraction point of a heavy conveyor diverter by up to 100mm to accommodate varying pallet dimensions.
Precision-tune the end position during initial commissioning to avoid mechanical crashes, leveraging the 2513N push force at 0.5 MPa.
Choose this 80mm bore when an application demands high thrust, stepping up from a 63mm bore that provides 2805N push force at 0.9 MPa. The adjustable 100mm window is ideal for product changeovers on a line, allowing variable end-stops without machining new hard stops. Because the 800mm stroke is lengthy, an external guide is strongly recommended to manage side loads and prevent rod binding, despite the sturdy 25mm rod diameter and M20x1.5 thread.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 80mm bore, 800mm stroke, 100mm adjustment, PT G3/8 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. This SKU lacks a magnet; adding a magnet (-S) enables CMSE reed or DMSE electronic solid-state sensors.
Quick checklist
At 0.5 MPa it provides 2513N push and 2268N pull force. At 0.9 MPa, the push force increases to 4523N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke within a 700-800mm window. It only sets the travel end and does not lock or hold the load without live air pressure.
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