
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX55-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm 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 SAIJ100X55-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 55 mm travel to a precise 15-55 mm window.
This unit features a SUS420J2 stainless steel rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper lets you fine-tune the retract end position at commissioning without adding external stops.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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. |
| ×55 | 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 15 to 55 mm retract position during machine setup without swapping physical spacers.
Quickly adapt the stroke window on a packaging line when introducing a new product size.
An adjustable stroke is preferred over a fixed SAI when product changeovers require shifting the end position, letting you trim up to 40 mm via the rear screw. Remember, the adjuster is a travel stop, not a lock; for load-holding without live air, select an SAIL or BSAI cylinder. To match this ISO 15552 replacement, verify the 100 mm bore, 55 mm stroke, 40 mm adjustment, PT port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjusting screw acts as a stopper to shorten the effective travel. For this 55 mm stroke model, it creates a usable 15 to 55 mm window, though it does not lock the load without live air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.