Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX120-50 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 SAIJ80BX120-50
The AirTAC SAIJ80X120-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 70-120 mm usable travel window by allowing you to trim up to 50 mm from the 120 mm nominal stroke.
It features a SUS304 stainless steel rod for superior corrosion resistance and uses a PT tapered port. The extruded aluminum barrel includes sensor grooves on both sides. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider a SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50 |
|---|---|
| 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 SAIJ80BX120-50
| 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 SAIJ80BX120-50 Is Used
Variable End-Stop Tuning
Dial in the exact 70 to 120mm retract distance during machine setup without replacing the cylinder or bolting on external stoppers.
Product Changeover
Quickly adjust the stroke window on packaging or assembly lines when handling a new product size, keeping downtime to a minimum.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX120-50 the Right Cylinder?
Choose this 80mm bore if your application requires high thrust (4523N at 0.9 MPa) but exact end-positioning varies by product size. The 50mm adjustment window lets you fine-tune the retract stroke during commissioning without adding external stops or swapping a fixed-stroke SAI cylinder. If you need less force, stepping down to a 63mm bore yields 2805N.
Because the stroke is under 300mm, side-load stress is moderate, but the 25mm rod and M20x1.5 thread handle standard loads well. This configuration uses a PT port, SUS304 rod, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). It lacks a magnet, so position sensing requires external reed switches if added later.
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 SAIJ80BX120-50 FAQ
The maximum thrust at 1.0 MPa is 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 50mm from the 120mm nominal length, creating a 70-120mm usable travel window for fine-tuning the end position.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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