Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S
The AirTAC SAIJ80X100-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and 3518N at 0.7 MPa. The integrated -S magnet enables direct mounting of CMSE reed and DMSE electronic solid-state sensors along the dual-sided extruded aluminum barrel grooves. A carbon steel piston rod with an M20x1.5 thread provides high tensile strength for demanding industrial tasks.
This specific SKU provides a 20mm adjustment range, allowing you to fine-tune the effective travel window anywhere between 80mm and 100mm during commissioning. The rear stopper screw lets you dial in the exact retract end-position for product changeovers without swapping the cylinder or adding external stops. The SAIJ mounting set omits FB, CA, CB, and CR brackets, utilizing a focused subset of interfaces: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80X100-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SAIJ80X100-20S Is Used
Product Changeover Tuning
Dial in the retract stroke from 80 to 100mm on packaging lines when switching to different package lengths, ensuring precise end-positioning without external stopper hardware.
Machine Commissioning
Fine-tune the end-of-travel position during initial machine setup to absorb mechanical tolerances, using the rear adjuster to set the exact 80-100mm travel window.
Variable End-Stop Forming
Adjust the stroke on the fly for metal forming or pressing applications that require slightly different retraction depths across various workpiece dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20S the Right Cylinder?
Select this 80mm bore model when an application requires high thrust combined with variable end-stop positioning. If your process demands less force, stepping down to a 63mm bore yields 1559N of push force at 0.5 MPa. Choose the SAIJ adjustable-stroke format over a fixed-stroke SAI cylinder when a machine requires frequent end-position tuning to accommodate varying product sizes.
For true load-holding without live air pressure, note that the rear adjuster on this cylinder acts only as a travel stop, not a brake or lock. You must direct the load to an external rod lock, a pilot-operated check valve, or an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder. To replace an ISO 15552 cylinder, match the 80mm bore, 100mm stroke, 20mm adjustment, PT tapered port thread, and the -S magnet requirement.
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 SAIJ80X100-20S FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 3518N.
The rear adjuster screw allows you to shorten the nominal 100mm stroke by up to 20mm. This creates an adjustable usable travel window between 80mm and 100mm, enabling fine end-position tuning without replacing the cylinder.
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