Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX240-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 240mm 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
- Stroke240 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 SAIJ80AX240-20
The AirTAC SAIJ80X240-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 220-240 mm usable travel window, allowing you to dial back the 240 mm nominal stroke by up to 20 mm.
Equipped with a SUS420J2 stainless steel rod and PT tapered ports, this unit omits the FB, CA, CB, and CR mounts, utilizing a reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 240 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 SAIJ80AX240-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SAIJ80AX240-20 Is Used
End-Position Tuning
Fine-tune the retract distance within the 220-240 mm window during commissioning to perfectly align stops without machining external spacers.
Product Changeover
Quickly adapt automated machinery for a new product size by adjusting the rear screw on the line rather than replacing the entire actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-20 the Right Cylinder?
The adjustable stroke is ideal for machine setup and product changeover, letting you fine-tune the retract end-position without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, select an SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead, as the rear stopper on this model is not a brake. To match this ISO 15552 replacement, specify: 80 mm bore, 240 mm stroke, 20 mm adjustment, PT ports, and no magnet.
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 SAIJ80AX240-20 FAQ
It features a rear adjusting screw that lets you shorten the effective stroke by up to 20 mm. This creates a 220-240 mm usable travel window, allowing precise end-position tuning at commissioning without changing the cylinder.
At 0.7 MPa, the push force increases to 3518 N.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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