
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX80-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X80-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position at commissioning. Based on an 80mm nominal stroke and a 50mm adjustment code, this SKU yields a highly versatile 30-80mm usable travel window, ideal for machines that require rapid product-size changeovers without swapping out the entire actuator.
This model is configured with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set the travel end, meaning it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX80-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 30-80mm travel window during product size transitions to set new end positions without physically replacing the cylinder or adding external mechanical stops.
Adjust the rear stopper screw on the assembly line to accommodate different material thicknesses on the fly, relying on the SUS420J2 rod for durability.
Choose this 100mm bore actuator when an application demands high thrust—up to 801 kgf at 1.0 MPa—within a compact footprint. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops to dial in exact positioning during machine setup.
Because this cylinder lacks a magnet (-S is not specified), it cannot be used with reed or electronic sensors without modification. To replace this unit with an interchangeable ISO 15552 cylinder, match the 100mm bore, 80mm stroke, 50mm adjustment range, PT port threads, and the SUS420J2 rod material. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear stopper and air cushions only decelerate the travel end; for true load-holding without live air, consider the SAIL or BSAI series instead.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back by up to 50mm. With an 80mm nominal stroke, this creates a usable travel window of 30-80mm, allowing precise end-position tuning without changing the cylinder.
At 0.7 MPa, the push force increases to 5497N, and it reaches a maximum of 801 kgf at 1.0 MPa.
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