Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30
The AirTAC SAIJ80X40-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel end position. It provides a usable stroke window of 10 to 40 mm, letting you shorten the nominal travel by up to 30 mm without adding external stops. This 80 mm bore delivers a robust 2268 N pull force at 0.5 MPa, making it suitable for heavy positioning tasks.
This model uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexibility. The rear adjuster acts purely as a mechanical stop to set the end position and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAIJ80AX40-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAIJ80AX40-30 Is Used
Product Changeover
Dial in the exact 10 to 40 mm travel window during line changeovers to accommodate varying product lengths without swapping cylinders.
End-Position Tuning
Fine-tune the retract end-stop during commissioning to perfect a press or clamping operation without external mechanical stops.
Short-Stroke Pressing
Leverage the 80 mm bore's high push force for short-stroke pressing and forming operations that require precise bottoming control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30 the Right Cylinder?
Choose this 80 mm bore when you need high force (2268 N pull at 0.5 MPa) over a very short distance. If your application requires less force, stepping down to a 63 mm bore yields 1402 N pull, whereas larger bores increase the footprint. The 30 mm adjustment range on a 40 mm stroke is ideal for machine changeovers where the exact end-stop varies by product size.
This cylinder is dimensionally interchangeable per ISO 15552 mounting dimensions. Configuration includes PT ports, a SUS420J2 stainless steel rod, and no magnet. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live pressure, consider the SAIL or BSAI series instead.
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 SAIJ80AX40-30 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from 40 mm down to 10 mm. This creates a 10 to 40 mm usable window for fine-tuning the end position at commissioning. The adjuster is a stop, not a lock, and the cylinder requires live air to hold its position.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX40-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.