Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75
The AirTAC SAIJ80X900-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window between 825 and 900 mm. Built with a SUS420J2 stainless steel piston rod and PT tapered ports, it delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
Because the external stopper acts solely as a travel limit and not a lock, the cylinder cannot hold a load without continuous air pressure. For load-holding requirements without live pressure, consider the SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides, ready for electronic DMSE or reed CMSE switches if a magnet is specified later.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80AX900-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80AX900-75 Is Used
Machine Changeover
Dial in the 825-900 mm travel window during product size transitions to set new end positions rapidly without mechanical rebuilds.
Long-Stroke Conveying
Provide robust 2513 N retraction force at 0.5 MPa to pull heavy pallets or transfer carts, using the rear stopper to fine-tune the unloading point.
Adjustable Pressing
Execute long-range forming or pressing tasks where the final 75 mm of travel must be precisely tuned to accommodate varying material thicknesses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-75 the Right Cylinder?
Choose this 80 mm bore when the 50 mm class (982 N push at 0.5 MPa) is insufficient, but the 100 mm bore (3927 N) is oversized. The 75 mm adjustment range is ideal for product changeovers, allowing you to shift the end-of-travel position without adding external stops or swapping the cylinder. It supports a subset of ISO 15552 mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
At 900 mm, the long stroke combined with the 25 mm rod diameter means external guides are recommended to prevent excessive side-loading. To match this cylinder exactly for an ISO 15552 replacement, specify the 80 mm bore, 900 mm stroke, 75 mm adjustment, PT ports, and the SUS420J2 rod material.
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 SAIJ80AX900-75 FAQ
At 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 acts as a mechanical stop that shortens the effective travel. For this 900 mm nominal stroke model, you can trim the stroke back by up to 75 mm, creating a usable 825-900 mm travel window. It is a stop, not a lock, so air pressure must be maintained to hold the load.
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