Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX180-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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
- Stroke180 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 SAIJ80AX180-50S
The AirTAC SAIJ80X180-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the retract end position. It provides a usable travel window of 130 to 180 mm, letting you shorten the effective stroke by up to 50 mm during commissioning or product changeover without adding external stops.
This model includes a magnetic piston for position sensing, operating seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches housed in the dual-side sensor grooves. The extruded aluminum barrel uses PT tapered G3/8 ports, and the adjustable stopper works alongside variable air cushions to decelerate the load. Remember that the adjuster is a travel stop, not a lock, so live air pressure is required to hold position.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 SAIJ80AX180-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80AX180-50S Is Used
Machine Changeover
Dial in the retract position by up to 50 mm when switching product sizes on a line, avoiding the need to swap out the entire cylinder or re-engineer fixed stop blocks.
End-Position Tuning
Fine-tune the final deceleration point at commissioning using the rear screw and variable air cushions, perfectly setting the 130-180 mm travel window for high-force pressing tasks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-50S the Right Cylinder?
Choose this 80 mm bore when your application requires substantial thrust, pushing 3518 N at 0.7 MPa, but might need a smaller footprint if force requirements drop; stepping down to a 63 mm bore yields 2182 N at 0.7 MPa. The 50 mm adjustment range is ideal for variable end stops and machine setup where a fixed-stroke SAI cylinder would require physical shimming. For exact ISO 15552 replacement matching, verify the 180 mm stroke, 50 mm adjuster, PT G3/8 port, and the -S magnet requirement.
Because the 180 mm stroke is below the 300 mm side-load threshold, external guides are less critical here than on longer strokes, though the robust 25 mm rod and M20x1.5 thread naturally handle higher bending loads. If the machine needs to hold a load mid-stroke without live air pressure, this cylinder will not suffice; look to the SAIL air-released lock or BSAI clamp-lock series instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ80AX180-50S FAQ
The rear adjuster acts as an external stopper that lets you trim the effective stroke back by up to 50 mm, creating a usable travel window of 130 to 180 mm. It sets the end position and works with the air cushions to decelerate the load, but it does not lock the load without live air pressure.
At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf of push force.
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