Airtac SAIJ80 Adjustable Cylinder SAIJ80X240-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X240-100 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 SAIJ80X240-100
The AirTAC SAIJ80X240-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 140 to 240 mm, allowing you to dial back the nominal stroke by up to 100 mm during commissioning. Delivering 2513 N of push force at 0.5 MPa, it fits seamlessly into demanding pneumatics setups requiring precise end-position tuning.
This extruded aluminum profile barrel includes sensor grooves on both sides for CMSE and DMSE switches. The robust 25 mm carbon steel rod and M20x1.5 thread handle high side loads, while the PT (tapered) G3/8 ports ensure reliable airflow. It supports a versatile mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X240-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X240-100 |
|---|---|
| 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 SAIJ80X240-100
| 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 SAIJ80X240-100 Is Used
Variable End-Stop Machining
Dial in the exact 140-240 mm travel window during tooling setups to accommodate different part lengths without mechanical rebuilds.
Product Changeover Diverter
Quickly adjust the retract position on packaging lines to handle varying package widths on the fly.
Commissioning Stroke Tuning
Fine-tune the end-of-stroke position at machine startup to perfect timing without replacing the entire cylinder.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X240-100 the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder (1402 N pull at 0.5 MPa) but want to avoid the larger footprint of a 100 mm bore. The 100 mm adjustment range is ideal for machines processing variable product sizes, letting you fine-tune the retract end-stop without swapping cylinders or adding external stops. For fixed travel requirements, a standard SAI cylinder is simpler, but this SAIJ model excels at rapid changeovers.
Because the 240 mm stroke exceeds 300 mm? No, but always ensure external guides are used for long unsupported loads. Remember that the rear adjuster acts only as a travel stop, not a lock; the SAIJ does not hold position without live air. For load-holding without pressure, consider the SAIL or BSAI series. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ80X240-100 FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 240 mm down to 140 mm. It only sets the travel end and decelerates the load; it does not lock the load without live air pressure.
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