Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX125-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 125mm 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.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S
The AirTAC SAIJ80X125-30-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the nominal 125 mm travel by up to 30 mm. This creates a usable 95-125 mm end-position window, ideal for fine-tuning machinery at commissioning without swapping out the unit. It delivers robust thrust, pushing 4523 N at 0.9 MPa.
Built for durability and precise sensing, this variant features a SUS420J2 stainless steel rod for superior corrosion resistance and works seamlessly with AirTAC CMSE reed and DMSE electronic sensors via its integrated magnet. The extruded aluminum barrel includes sensor grooves on both sides, and air cushions at both ends manage deceleration. Remember, the rear adjuster acts only as a travel stop, not a load lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S Is Used
Machine Changeover
Dial in the exact 95-125 mm end position during product size changes on a packaging line without replacing the entire cylinder.
Variable End-Stops
Set precise retract limits for machining operations where the raw material thickness varies, using the rear stopper to fine-tune depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S the Right Cylinder?
Choose this 80 mm bore when your application requires substantial force (pulling 2268 N at 0.5 MPa) within a specific 95-125 mm travel window. The adjustable stroke is perfect for variable end-stops or product-size changeovers, avoiding the need to bolt on external stops. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as this adjuster cannot hold loads.
To replace an ISO 15552 cylinder, match the 80 mm bore, 125 mm stroke, 30 mm adjustment, PT tapered ports, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 125 mm, side-loading is minimal, but always ensure proper alignment to protect the M20x1.5 rod thread.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30S FAQ
At 0.5 MPa, it pushes 2513 N and pulls 2268 N. At 0.9 MPa, the push force increases to 4523 N, and at the maximum 1.0 MPa, it reaches 513 kgf.
The rear adjuster acts as an external stopper that lets you shorten the 125 mm nominal stroke by up to 30 mm, providing a usable travel window of 95 to 125 mm. It sets the end position but does not lock the load without live air.
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Standard models are processed and dispatched in 3-5 business days.
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