Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100
The AirTAC SAIJ80X240-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, utilizing a 25mm piston rod and G3/8 air ports. By integrating an external adjusting screw at the rear cap, this actuator allows you to shorten the effective travel without replacing the entire cylinder or adding bulky external stops. You can trim the nominal 240mm stroke back by up to 100mm, creating a highly versatile 140-240mm usable travel window.
This specific SKU features a SUS420J2 stainless steel rod (material code A) for superior corrosion and wear resistance in demanding environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic solid-state switches. The rear stopper screw acts purely as a travel end deceleration point alongside the standard variable air cushions; it is not a locking device and cannot hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100 |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100
| 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 SAIJ80AX240-100 Is Used
Variable End-Stop Positioning
Dial in the exact clamping depth on material presses by adjusting the rear screw within the 140-240mm travel window, accommodating different material thicknesses without mechanical retooling.
Product Size Changeovers
Quickly adapt diverter arms on packaging lines to new carton sizes by turning the rear stopper, reducing machine downtime between production runs.
Machine Setup Commissioning
Fine-tune the retract end-position during initial equipment commissioning to prevent mechanical crashes, locking the cylinder's travel exactly where the tooling requires it.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-100 the Right Cylinder?
Selecting this 80mm bore actuator is ideal when an application demands high thrust combined with variable end-position tuning during commissioning or product-size changeovers. If your setup requires less force, stepping down to a 63mm bore provides 1559N push force at 0.5MPa. However, if you need to hold a load securely in place without constant air pressure, a standard SAIJ cylinder is insufficient—you should instead explore an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder.
When replacing an ISO 15552 cylinder, match the 80mm bore, 240mm nominal stroke, 100mm adjustment range, PT tapered port threads, and your required mounting hardware. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, explicitly omitting FB, CA, CB, and CR styles. Because the 240mm stroke exceeds 300mm only marginally, side-load risks are moderate, but for maximum longevity, always ensure external guides support the load rather than relying solely on the 25mm rod thread.
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 SAIJ80AX240-100 FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0MPa pressure, it can deliver up to 513kgf.
The rear adjusting screw acts as a mechanical stopper that lets you trim the effective stroke back from the 240mm nominal length by up to 100mm. This creates a usable travel window of 140-240mm, allowing you to set the exact retract position without swapping the cylinder.
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