Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 850mm 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
- Stroke850 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S
The AirTAC SAIJ80X850-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers robust thrust, providing 2513N push force at 0.5 MPa and up to 4523N at 0.9 MPa. With an 850 mm nominal stroke and a 10 mm adjustment range, you can fine-tune the effective travel to an exact 840-850 mm window during commissioning. This eliminates the need to swap out the entire cylinder or bolt on external stops when dialing in a final end position.
This SKU features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. It uses a G3/8 port and provides a standard operating speed range of 30-800 mm/s. The rear adjuster acts purely as a mechanical stop to set the travel end; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 850 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 SAIJ80AX850-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×850 | 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 SAIJ80AX850-10S Is Used
Machine Setup & Changeover
Dial in the exact 840-850 mm end-stop during product size changeovers without physically replacing the cylinder or adding external shims.
Long-Stroke Material Handling
Pushes heavy loads along a conveyor using up to 4523N of thrust at 0.9 MPa, with the adjuster allowing precise positioning at the retract end.
Sensor-Driven Positioning
Leverages the built-in magnet with CMSE or DMSE switches to confirm mid-stroke or end-stroke positions in automated assembly lines.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-10S the Right Cylinder?
Selecting this 80 mm bore cylinder makes sense when your application requires the 2513N push force at 0.5 MPa, stepping up from a 63 mm bore (which provides 1559N) to handle heavier payloads. The adjustable 840-850 mm travel window is ideal for machinery that requires precise end-position tuning during setup or product changeovers, rather than relying on a fixed-stroke SAI cylinder. Because the stroke is 850 mm, the M20x1.5 piston rod will experience leverage forces under load; an external guide should be used to prevent excessive side-loading and premature seal wear.
When specifying an ISO 15552 replacement, match the 80 mm bore, 850 mm stroke, 10 mm adjustment, PT tapered port threads, and the -S magnet requirement. The available mounting set for SAIJ includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Remember that neither the rear adjuster nor the variable air cushions function as a lock; if you need true load-holding without live air pressure, consider the SAIL or BSAI series instead.
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 SAIJ80AX850-10S FAQ
At 0.5 MPa it provides 2513N of push force and 2268N of pull force. At 0.9 MPa, the push force increases to 4523N. The maximum thrust at 1.0 MPa is 513 kgf.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 850 mm nominal stroke by up to 10 mm, creating a usable travel window of 840-850 mm. It only sets the travel end and does not hold the load without live air pressure.
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