Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX120-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 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 SAIJ80BX120-75
The AirTAC SAIJ80X120-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The built-in stopper allows you to dial back the 120mm nominal stroke by up to 75mm, creating a highly flexible 45-120mm usable travel window for precise end-position tuning.
This variant uses a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads. It includes adjustable air cushions at both ends to manage kinetic energy. Note that the rear adjuster functions strictly as a travel stop for position setting, not as a load-holding lock; maintaining position requires continuous air pressure or an external rod lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAIJ80BX120-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAIJ80BX120-75 Is Used
Product Changeover
Quickly reconfigure the travel window from 45 to 120mm during packaging line format changes without replacing hardware.
End-Stop Tuning
Fine-tune the exact retract position during machine commissioning using the rear adjuster screw instead of external shims.
Variable Stroke Actuation
Handle diverse part sizes on a single conveyor line by dialing the stroke back to match varying product widths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-75 the Right Cylinder?
If you need less force, stepping down to a 63mm bore yields 2805N, while moving up to a 100mm bore provides 7068N. The 75mm adjustment range is exceptionally wide, making this SKU ideal for machines running multiple product sizes where the end-stop must be reconfigured on the fly without swapping the cylinder.
When replacing an ISO 15552 cylinder, match the 80mm bore, 120mm nominal stroke, PT port thread, and SUS304 rod material. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is 120mm, external guiding is recommended if heavy side loads are present.
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 SAIJ80BX120-75 FAQ
The rear adjuster acts as a mechanical stop that trims the effective travel. For this model, you can shorten the 120mm stroke by up to 75mm, giving an adjustable usable travel window of 45-120mm.
It operates at speeds between 30 and 800 mm/s.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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