Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S
The AirTAC SAIJ80X700-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 4523N push force at 0.9 MPa and provides a usable travel window of 680-700mm, letting you dial back the nominal 700mm stroke by up to 20mm during commissioning.
This variant includes an SUS420J2 stainless steel rod, a PT tapered port, and a piston magnet for CMSE or DMSE sensors. The extruded aluminum barrel carries sensor grooves on both sides, and the rear adjuster acts purely as a travel stop, not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80AX700-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80AX700-20S Is Used
Variable End-Stop Tuning
Dial in the exact 680-700mm travel distance during machine commissioning without adding external stops.
Product Size Changeover
Quickly adjust the retract position to accommodate different product lengths on a shared conveyor line.
Long-Stroke Assembly Press
Utilize the 4523N push force for heavy assembly tasks while fine-tuning the final end position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-20S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than the 63mm bore (2182N at 0.5 MPa) but without stepping up to the 100mm class. The adjustable stroke is ideal for variable end-stops or product-size changeovers, preventing the need to swap out a fixed-stroke SAI cylinder. For strokes of 700mm, the M20x1.5 rod thread handles significant loads, but an external guide is recommended to manage side-load risks.
When specifying an ISO 15552 replacement, match the 80mm bore, 700mm stroke, 20mm adjustment, PT port, and -S magnet. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the rear adjuster only sets the travel end; for load-holding without live air, select a SAIL or BSAI series.
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 SAIJ80AX700-20S FAQ
At an operating pressure of 0.9 MPa, this 80mm bore cylinder provides a push force of 4523N and a pull force of 4071N.
The rear adjuster acts as a travel stop, allowing you to shorten the effective stroke from 700mm down to 680mm. It does not lock the load without live air pressure.
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