Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX125-30 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 SAIJ80AX125-30
The AirTAC SAIJ80X125-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 95-125 mm usable travel window by trimming the nominal 125 mm stroke up to 30 mm.
This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. The rear stopper acts purely as a travel end-limit and does not hold the load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30 |
|---|---|
| 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 SAIJ80AX125-30
| 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 SAIJ80AX125-30 Is Used
Machine Changeover Setup
Quickly reconfigure the retract end-position by up to 30 mm when switching between product sizes on a packaging line, eliminating the need for custom spacer blocks.
Variable Forming Stops
Adjust the rear stopper to modify the stroke length for pressing or forming applications where the material thickness or desired deformation depth varies between batches.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX125-30 the Right Cylinder?
The 30 mm adjustment range allows operators to dial in the exact retract stop during commissioning or product changeovers without swapping out the entire cylinder or adding external stops. If your process demands less force, stepping down to a 63 mm bore yields 1559 N; if more force is needed, a 100 mm bore provides 3927 N.
Because the 125 mm stroke falls under the 300 mm threshold, standard side-load concerns are minimal, though external guides are recommended for heavy off-center loads. To replace an ISO 15552 cylinder, match the 80 mm bore, 125 mm stroke, 30 mm adjuster, G3/8 PT port, and the required mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the SAIJ series omits FB, CA, CB, and CR mounts. For applications requiring true load-holding without live air, consider the SAIL or BSAI series instead, as this adjuster is not a locking mechanism.
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 SAIJ80AX125-30 FAQ
The rear adjuster screw acts as a mechanical stop that shortens the effective stroke. For this SAIJ80X125-30 model, you can trim the 125 mm nominal stroke back by up to 30 mm, creating a usable travel window of 95-125 mm without replacing the cylinder.
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