Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50
The AirTAC SAIJ80X950-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 900 to 950 mm. Delivering a robust 2513 N push force at 0.5 MPa, it handles heavy actuation tasks with ease. The extruded aluminum barrel includes sensor grooves on both sides, and the rod is constructed from SUS420J2 stainless steel for enhanced corrosion resistance.
This model uses a PT tapered port (G3/8) and provides variable air cushioning at both ends to manage kinetic energy. The rear adjustment mechanism allows precise end-position tuning during commissioning without adding external stops. It is a travel stop, not a locking device, so it cannot hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80AX950-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×950 | 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 SAIJ80AX950-50 Is Used
Variable End-Stop Machining
Dial in the exact 900-950 mm travel window during machine setup to accommodate different part lengths without physically swapping cylinders.
Product Changeover Lines
Adjust the rear stopper on the fly when switching product sizes on a conveyor, ensuring precise positioning without adding external mechanical stops.
Heavy-Duty Actuation
Leverage the 2513 N push force at 0.5 MPa to move heavy pallets or tooling, using the 50 mm adjustment to fine-tune the final resting position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50 the Right Cylinder?
Select this 80 mm bore cylinder when an application requires substantial thrust (2513 N push at 0.5 MPa) alongside a variable end-stop. The 50 mm adjustment range is ideal for product changeovers on a line, allowing operators to dial in the exact 900-950 mm travel window without swapping the cylinder. If your process demands less force, stepping down to a 63 mm bore yields 1559 N, whereas a 100 mm bore offers 3927 N for heavier loads.
Because the 950 mm stroke is long and unsupported, an external guide is highly recommended to prevent excessive side-loading on the SUS420J2 stainless rod. For load-holding without continuous air pressure, this standard SAIJ is insufficient; consider an external rod lock or the AirTAC SAIL or BSAI series instead. When matching for ISO 15552 interchangeability, specify the 80 mm bore, 950 mm stroke, 50 mm adjustment, PT G3/8 ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80AX950-50 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster acts as a travel stop that lets you shorten the nominal 950 mm stroke by up to 50 mm, creating a usable 900-950 mm window. It only sets the end position and does not lock or hold the load without live air pressure.
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