Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX125-100 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 SAIJ80BX125-100
The AirTAC SAIJ80X125-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 25-125 mm, allowing you to dial back the 125 mm nominal stroke by up to 100 mm during commissioning without adding external stops.
This bore 80 unit uses a G3/8 port and a 25 mm rod with an M20x1.5 thread. The rod is built from SUS304 stainless steel (code B) for superior corrosion resistance. It runs at speeds of 30-800 mm/s and includes variable air cushions at both ends to manage deceleration. Note that the rear adjuster is a travel stop, not a lock; it will not hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100 |
|---|---|
| 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 SAIJ80BX125-100
| 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 SAIJ80BX125-100 Is Used
Variable End Stops
Dial in the exact retract position within the 25-125 mm window for precise product ejection without machining new hard stops.
Machine Changeover
Quickly adapt the stroke length during product-size changeovers on a packaging line using the rear adjustment screw.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX125-100 the Right Cylinder?
Choose this SAIJ80X125-100 when your machine setup requires variable end-stops or frequent product-size changeovers. The 100 mm adjustment window lets you fine-tune the retract position on the fly, which is far more efficient than swapping to a fixed-stroke SAI cylinder. If your application needs less force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa; if you need more, a 100 mm bore provides 3927 N.
For an exact ISO 15552 replacement, match the 80 mm bore, 125 mm stroke, 100 mm adjustment, PT tapered port thread, and SUS304 (B) rod material. Because this SKU lacks the -S magnet, it cannot host CMSE or DMSE sensors. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live pressure, consider an external rod lock or the SAIL/BSAI series.
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 SAIJ80BX125-100 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 100 mm. This creates a usable travel window of 25-125 mm, allowing fine-tuning of the end position at commissioning without swapping the cylinder.
At 0.7 MPa, the push force increases to 3518 N.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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