Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40
The AirTAC SAIJ80X65-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 25 to 65 mm. It delivers a robust 2513 N push force at 0.5 MPa, making it well-suited for heavy manipulation tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible tracking.
This variant is configured with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads. The external adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 65 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 SAIJ80AX65-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×65 | 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 SAIJ80AX65-40 Is Used
Product Changeover Setup
Dial in the exact 25 to 65 mm travel distance during line changeovers without physically swapping out the cylinder.
Variable End-Stop Positioning
Use the rear mechanical stopper to fine-tune the retract end position precisely for delicate pressing or forming tasks.
Heavy Duty Assembly
Leverage the 2513 N push force at 0.5 MPa for robust clamping and joining operations on automated machinery.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40 the Right Cylinder?
Selecting this 80 mm bore model provides 2513 N push and 2268 N pull force at 0.5 MPa. If your application requires less force, stepping down to a 63 mm bore yields 1559 N, whereas larger loads might necessitate a 100 mm bore providing 3927 N. The adjustable stroke is ideal for variable end-stop setups and product changeovers, offering a 25-65 mm travel window instead of a fixed 65 mm stroke.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 65 mm stroke, 40 mm adjustment range, PT G3/8 port, and the chosen mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, intentionally omitting FB, CA, CB, and CR options. Note that the 25 mm rod and M20x1.5 thread handle side loads well, but always guide the rod externally to prevent binding.
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 SAIJ80AX65-40 FAQ
At a 0.5 MPa operating pressure, 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 can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the nominal 65 mm stroke back by up to 40 mm. This creates a usable travel window of 25 to 65 mm for fine-tuning end positions without external stops.
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