Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-10S 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 SAIJ80AX240-10S
The AirTAC SAIJ80X240-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 230-240 mm usable travel window, allowing you to dial back the 240 mm nominal stroke by up to 10 mm during machine setup without adding external stops. In the 80 mm bore class, it delivers a robust 4523 N of push force at 0.9 MPa, making it well-suited for heavier actuation tasks.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel integrates dual sensor grooves, and because this is an -S model, it is factory-fitted with a magnet for precise position detection via AirTAC CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position, working alongside the standard air cushions to decelerate the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-10S |
|---|---|
| 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 SAIJ80AX240-10S
| 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 SAIJ80AX240-10S Is Used
Machine Setup Calibration
Dial in the exact 230 to 240 mm end-position during commissioning to perfect a pressing operation without machining custom spacers.
Product Changeover Diverter
Quickly adjust the stroke stop by up to 10 mm on a packaging line to accommodate slightly different carton sizes on the fly.
Variable End-Stop Forming
Fine-tune the retract distance on a forming press, using the rear stopper to set precise material engagement depths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX240-10S the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires substantial force—stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, while stepping up to a 100 mm bore increases it to 3927 N at the same pressure. The adjustable stroke is ideal for applications requiring variable end-stops or fine-tuning at commissioning, offering flexibility that a fixed-stroke SAI cylinder cannot provide. To match this ISO 15552 footprint, specify the 80 mm bore, 240 mm stroke, 10 mm adjustment, PT G3/8 ports, and the -S magnet.
Since the nominal stroke is 240 mm, external guiding is recommended to prevent excessive side-load wear on the rod and front cap. Remember that the rear adjuster is a travel stop, not a locking device; it will not hold the load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead. Mounting options include the standard SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ80AX240-10S FAQ
This 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force at 0.5 MPa, reaching 4523 N push at 0.9 MPa. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 240 mm nominal stroke by up to 10 mm, creating a 230-240 mm travel window. It only sets the end position and does not lock or hold the load without continuous air pressure.
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