Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100
The AirTAC SAIJ80X800-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 25 mm rod and a usable travel window of 700 to 800 mm, letting you dial back the nominal 800 mm stroke by up to 100 mm during machine setup. At 0.5 MPa it delivers 2513 N of push force and 2268 N of pull force.
This unit uses a SUS420J2 stainless steel rod for superior corrosion resistance and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper acts purely as a travel end-deceleration device, not a load lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80AX800-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SAIJ80AX800-100 Is Used
Variable End-Stop Tuning
Dial in the exact 700 to 800 mm travel distance during machine commissioning to accommodate varying material thicknesses without external stopper blocks.
Product Changeover
Quickly readjust the retract end-position on a packaging line when switching to different carton sizes, saving downtime on physical cylinder swaps.
Long-Stroke Assembly Press
Leverage the 2513 N push force at 0.5 MPa across an 800 mm span while using the 100 mm adjuster to set precise pressing depth limits.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-100 the Right Cylinder?
Select this 80 mm bore when an application requires around 2513 N push force at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. An adjustable stroke is chosen over a fixed SAI when you need to fine-tune the end position during commissioning or product changeover without swapping the cylinder or adding external stops. To match this ISO 15552 replacement exactly, specify the 80 mm bore, 800 mm stroke, 100 mm adjustment, PT ports, and no magnet.
Because the stroke is 800 mm, the long unsupported rod is prone to side-loading; an external guide is recommended to prevent premature seal wear. The rear adjuster and air cushions will not hold the load without live air pressure, so for true drop-stop protection consider a SAIL or BSAI cylinder.
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 SAIJ80AX800-100 FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder generates 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 screw lets you shorten the effective stroke from the nominal 800 mm down to 700 mm, giving a 700 to 800 mm travel window. This allows fine-tuning of the end position at commissioning without changing the cylinder.
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