Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S
The AirTAC SAIJ80X275-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513 N of push force at 0.5 MPa and features a 25 mm SUS420J2 stainless steel rod. The built-in rear stopper provides a usable travel window of 175 to 275 mm, allowing you to dial back the nominal stroke by up to 100 mm during commissioning without swapping hardware.
This extruded aluminum profile cylinder includes a -S magnet for position sensing and uses PT tapered ports. It runs at speeds of 30-800 mm/s with variable air cushions at both ends. The adjuster acts purely as a mechanical stop to fine-tune the retract position; it does not lock the load, so external holding mechanisms are required if air pressure drops.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80AX275-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAIJ80AX275-100S Is Used
Variable Product Changeover
Dial in the exact retract distance for different packaging lengths on the fly, utilizing the 175 to 275 mm window to avoid physical cylinder swaps.
Machine Setup Calibration
Fine-tune the end-of-stroke position during initial commissioning to achieve precise alignment without adding external mechanical stops.
Adjustable Diverting
Control diverter arms on a conveyor line where the actuation distance needs occasional adjustment to accommodate varying pallet dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX275-100S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than the 63 mm variant (1559 N at 0.5 MPa) but less bulk than the 100 mm option (3927 N). The 100 mm adjustment range is ideal for machinery processing varying product sizes, enabling rapid changeovers by shifting the end-stop rather than replacing the entire cylinder. For fixed-position tasks without variance, a standard SAI cylinder is simpler.
To match this ISO 15552 footprint for a direct replacement, confirm the 80 mm bore, 275 mm stroke, PT port thread, and -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 275 mm, ensure external guides support the load to prevent excessive side-loading on the rod.
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 SAIJ80AX275-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it achieves a maximum push force of 513 kgf.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 175 to 275 mm. It only sets the end position and does not lock the load without live air pressure.
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