Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 475mm 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
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S
The AirTAC SAIJ80X475-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 475 mm nominal stroke to a 400 mm minimum. Delivering 2513 N of push force at 0.5 MPa, it bridges the gap between mid-size and heavy-duty actuation. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-travel detection.
This specific SKU is configured with an SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. It uses PT tapered port threads (G3/8) and offers a 75 mm adjustment window, enabling exact end-position calibration during machine commissioning or product changeovers without swapping out the physical cylinder. The rear adjuster acts purely as a mechanical stop to set the travel limit; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 475 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 SAIJ80AX475-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×475 | 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 SAIJ80AX475-75S Is Used
Variable Product Changeovers
Quickly reconfigure the 400-475 mm stroke window on packaging lines when switching between different carton or pallet sizes without disassembling the actuator.
Commissioning End-Stop Tuning
Dial in the exact retract position during machine setup to perfect timing and mechanical synchronization, absorbing mechanical tolerance variations across the fixture.
Heavy-Duty Material Push
Leverage the 2513 N push force at 0.5 MPa to index heavy pallets or push dense workpieces, using the rear stopper to set the precise ejection distance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-75S the Right Cylinder?
Choose this 80 mm bore when your application requires the 2513 N push force (at 0.5 MPa) or 3518 N at 0.7 MPa, stepping up from a 63 mm bore that provides 1559 N. The 75 mm adjustable travel window is ideal for modular machinery where downstream product sizes vary, allowing operators to dial in the exact 400 to 475 mm stroke on the fly rather than maintaining an inventory of fixed-stroke SAI cylinders.
Because the nominal stroke is 475 mm, an external guide rail is highly recommended to prevent excessive side-loading on the 25 mm rod, ensuring the cylinder does not bear unintended radial loads. If your process requires the load to be held in place mechanically without live air, this cylinder's adjuster will not suffice; you should instead look at the SAIL (air-released lock) or BSAI (clamp-lock) series. For a true drop-in replacement, match the 80 mm bore, 475 mm stroke, 75 mm adjuster, PT G3/8 port, SUS420J2 rod, -S magnet, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ80AX475-75S FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 3518 N.
The rear external adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke from the 475 mm nominal length down to 400 mm. It is a travel stop only, not a lock, meaning the cylinder still requires live air pressure to hold the load.
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