Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50
The AirTAC SAIJ80X50-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 50 mm stroke that can be dialed back by up to 50 mm, creating a 0-50 mm usable travel window for exact end-position tuning. In the 80 mm bore class, it delivers 2513 N of pull force at 0.5 MPa and reaches a maximum of 513 kgf at 1.0 MPa.
This unit uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to set the travel end and does not lock or hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80AX50-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SAIJ80AX50-50 Is Used
End-Position Tuning
Dial in the exact retract distance within the 0-50 mm window during commissioning to hit a precise stop without adding external bumpers.
Machine Changeover
Quickly adapt the travel end on packaging lines when switching product sizes, using the rear screw to set a new stroke limit.
Clamping Setup
Fine-tune the clamping reach on a 25 mm rod to accommodate varying material thicknesses without repositioning the cylinder mount.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50 the Right Cylinder?
Select this 80 mm bore adjustable cylinder when your machine setup requires variable retract end-stops without swapping out the entire actuator. If your application needs less force, stepping down to a 63 mm bore yields 1402 N of pull force at 0.5 MPa. For higher thrust requirements, moving up to a 100 mm bore provides 3681 N of pull force at 0.5 MPa.
Because the total stroke is 50 mm, no external side-load guide is necessary for the rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets. For any load-holding requirements during air loss, select a SAIL or BSAI cylinder instead, as this rear stopper is not a brake.
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 SAIJ80AX50-50 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of pull force and 2513 N of push force. At the maximum operating pressure of 1.0 MPa, it delivers a maximum thrust of 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 50 mm down to 0 mm. It sets the retract end position but does not lock or hold the load without continuous air pressure.
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