Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX185-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm 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
- Stroke185 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 SAIJ80AX185-100S
The AirTAC SAIJ80X185-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. This wide adjustment range is ideal for product changeovers, letting you set new end positions without swapping the cylinder or adding external stops.
Built with a SUS420J2 stainless steel rod (option A) for corrosion resistance, this unit includes a magnet (-S) for position sensing. It uses PT tapered G3/8 ports and relies on variable air cushions at both ends to decelerate the load. Remember that the rear adjuster acts as a travel stop, not a lock; it will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 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 SAIJ80AX185-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SAIJ80AX185-100S Is Used
Product Changeovers
Rapidly adjust the end-stop from 185mm down to 85mm to accommodate varying package sizes on a packaging line without changing hardware.
Machine Setup Tuning
Fine-tune the retract end position during initial commissioning to perfect timing and avoid mechanical crashes.
Variable End Stops
Set precise, repeatable travel limits for pressing or indexing operations where the target depth changes between runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX185-100S the Right Cylinder?
If you need less force, stepping down to a 63mm bore yields 1559N. If you require higher output, a 100mm bore provides 3927N. This SAIJ model is selected over a fixed-stroke SAI cylinder when a machine setup demands on-the-fly end-position tuning across an 85-185mm window.
Because this SKU includes a -S magnet, it supports AirTAC CMSE reed switches and DMSE solid-state electronic sensors for precise feedback. For load-holding without continuous air pressure, this cylinder is insufficient; you would need an external rod lock, a pilot-operated check valve, or a SAIL/BSAI locking cylinder instead. The 25mm rod and M20x1.5 thread handle side loads well, but for any stroke of 300mm or more, an external guide is mandatory to prevent rod deflection.
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 SAIJ80AX185-100S FAQ
It uses a G3/8 PT tapered port and features a 25mm rod with an M20x1.5 thread.
The rear adjuster screw lets you mechanically shorten the effective stroke from its nominal 185mm down to 85mm. This creates a 100mm adjustable travel window for tuning the end position without swapping the cylinder.
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