Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 80mm 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
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S
The AirTAC SAIJ80X80-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 25mm rod and offers a substantial thrust class, pushing 2513N and pulling 2268N at 0.5 MPa. Fitted with a -S magnet, the extruded aluminum barrel integrates sensor grooves on both sides to seamlessly host CMSE reed or DMSE electronic solid-state switches for precise position verification.
This specific SKU provides a usable travel window of 5 to 80 mm, allowing you to dial back the nominal 80 mm stroke by up to 75 mm during commissioning. It utilizes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads (G3/8). The variable air cushions at both ends decelerate the piston, but remember the rear adjuster acts strictly as a travel stop, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80AX80-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SAIJ80AX80-75S Is Used
Variable End-Stop Positioning
Dial in the exact retraction point within the 5 to 80 mm window during machine setup to accommodate different material lengths without mechanical rebuilds.
Product Size Changeover
Quickly adjust the rear stopper on a packaging line when switching between different package widths, leveraging the 2513N push force to handle heavier forming tasks.
Sensor-Verified Actuation
Rely on the integrated magnet and dual sensor grooves to mount CMSE or DMSE switches for solid-state position confirmation on automated assembly stations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75S the Right Cylinder?
Choose this 80 mm bore when an application requires higher force than the 63 mm bore (which provides 1559N push at 0.5 MPa) but does not need the full 3927N push of the 100 mm variant. The 75 mm adjustment range is ideal for machines processing varying product sizes, as it allows you to fine-tune the end position on the fly without swapping cylinders or adding external stops. For position feedback, the integrated magnet pairs directly with AirTAC CMSE and DMSE sensors.
If your machine cycle requires holding a load without continuous live air pressure, this SAIJ cylinder is unsuitable because the rear adjuster and air cushions do not function as a brake; you would need an SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts. Because the stroke is under 300 mm, side-load stress on the 25mm rod is minimal, though external guides are still recommended for heavy radial loads.
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 SAIJ80AX80-75S FAQ
At a 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 4523N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from the nominal 80 mm down to as little as 5 mm. This creates a 5 to 80 mm travel window for fine-tuning end positions at commissioning, but it does not lock or hold the load without live air pressure.
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