Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 220mm 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
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S
The AirTAC SAIJ80X220-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It provides a nominal travel of 220 mm that can be dialed back by up to 20 mm, yielding a usable 200-220 mm end-position window for precise commissioning without external stops. In the 80 mm bore class, it generates 2513 N of push force and 2268 N of pull force at a 0.5 MPa operating pressure.
This variant includes a standard carbon steel rod and a built-in magnet for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible mounting. It uses a G3/8 port and offers variable air cushions at both ends to manage deceleration, while the rear stopper screw handles the final end-position tuning.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAIJ80X220-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SAIJ80X220-20S Is Used
Product Changeover
Dial in the 200-220 mm travel window during format size changes on packaging lines without swapping out the entire actuator.
End-Stop Tuning
Fine-tune the retract end position during machine commissioning to avoid mechanical crashes and optimize dwell times.
Variable Positioning
Adjust the rear stopper to accommodate varying material lengths in assembly presses without adding external hard stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-20S the Right Cylinder?
Choose this 80 mm bore when an application requires roughly 2500 N of thrust at 0.5 MPa and a variable end-stop. If the load is lighter, stepping down to a 63 mm bore yields 1559 N of push force, whereas heavier demands up to 3927 N at 0.5 MPa dictate moving to a 100 mm bore. The adjustable stroke is ideal for machine setups requiring product changeovers, replacing a fixed-stroke SAI cylinder when exact end positions need on-the-fly tuning rather than physical shimming.
For ISO 15552 dimensional interchangeability, match the 80 mm bore, 220 mm stroke, 20 mm adjustment range, G3/8 PT ports, and the -S magnet option. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke exceeds 300 mm is not applicable here, the 25 mm rod handles standard side loads well, though long unsupported strokes always require an external guide. Note that the rear adjuster is a travel stop, not a lock; the SAIJ does not hold loads without live air pressure, so for fail-safe holding, consider the 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 SAIJ80X220-20S FAQ
It features a rear stopper screw that allows you to shorten the effective stroke by up to 20 mm. This creates an adjustable 200-220 mm travel window, letting you fine-tune the end position during commissioning without replacing the cylinder.
At a 0.5 MPa operating pressure, it provides 2513 N of push force and 2268 N of pull force. It can reach up to 4523 N of push force at the maximum 0.9 MPa pressure.
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