
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX500-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X500-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 470-500 mm, allowing you to dial back the 500 mm nominal stroke by up to 30 mm during commissioning.
This model incorporates an SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads for its G3/8 connections. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It supports a standard mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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.
Quickly modify the extended end position by up to 30 mm when switching between product sizes on a packaging line, avoiding cylinder swaps.
Precisely position heavy pallets or fixtures over a 500 mm range, using the rear adjuster to compensate for mechanical drift.
If you need less force, stepping down to a 63 mm bore yields 1559 N; stepping up to 100 mm provides 3927 N. The adjustable rear stopper is ideal for product changeovers, whereas a fixed SAI cylinder is better for repeatable hard stops. Because the stroke is 500 mm, an external guide is recommended to manage side loading on the 25 mm rod. To match this ISO 15552 interchangeable cylinder, specify bore 80, stroke 500, adjust 30, PT G3/8 ports, and SUS420J2 rod material. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI cylinder.
Quick checklist
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective travel from 500 mm down to 470 mm. It sets the end position but does not lock the load without live air pressure.
It operates at speeds between 30 and 800 mm/s.
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