Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX260-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 260mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40
The AirTAC SAIJ80X260-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm. This creates a usable stroke window of 220-260 mm, giving you precise end-position tuning at commissioning without needing to swap the cylinder or bolt on external stops.
This model uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and features a PT tapered G3/8 port. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is configured without a magnet for position sensing. The rear adjuster acts purely as a travel stop to set the retract end position and decelerate the load alongside the standard air cushions; it is not a lock and will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 260 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×260 | 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 SAIJ80AX260-40 Is Used
Machine Changeover
Dial in the 220-260 mm travel window during product size changes without physically replacing the actuator or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke by up to 40 mm at commissioning to perfectly time the machine sequence and absorb mechanical drift.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-40 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, whereas a fixed SAI cylinder is sufficient if the travel distance never changes. Because this is a plain SAIJ without a locking mechanism, use a SAIL or BSAI cylinder if you need fail-safe load holding without continuous air pressure.
For ISO 15552 replacement matching, ensure your setup accommodates a 260 mm stroke with a 40 mm adjustment range, a PT G3/8 port, and the SUS420J2 stainless steel rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets. With a 25 mm rod diameter and M20x1.5 thread, this cylinder handles side loads well, but any stroke of 260 mm should still be guided externally to prevent rod 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 SAIJ80AX260-40 FAQ
The rear adjuster screw acts as a mechanical stop that shortens the 260 mm nominal stroke by up to 40 mm, providing a usable travel window of 220-260 mm. It sets the end position but does not lock the load without live air pressure.
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