Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 170mm 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
- Stroke170 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20
The AirTAC SAIJ80X170-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, making it well-suited for mid-weight industrial handling. The integrated adjuster allows you to trim the 170mm nominal stroke back by up to 20mm, creating a precise 150-170mm usable travel window without needing external stops.
This extruded aluminum barrel omits tie-rods and includes dual sensor grooves for straightforward position feedback. It uses a G3/8 port and a 25mm carbon steel rod with an M20x1.5 thread, providing a rigid interface that handles side loads effectively. The adjustment mechanism acts purely as a travel stop combined with variable air cushions to decelerate the piston; it does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 170 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 SAIJ80X170-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×170 | 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 SAIJ80X170-20 Is Used
Changeover Calibration
Dial in the 150-170mm travel window during product size changeovers to perfectly position parts without machining new hard stops.
Assembly Pressing
Leverage the 2513N push force at 0.5MPa to seat components accurately, using the rear adjuster to fine-tune the final press depth.
End-Stop Tuning
Trim the retract position on packaging equipment to accommodate varying material thicknesses while maintaining standard ISO 15552 mounting.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-20 the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (which provides 1559N push at 0.5MPa) but does not need the full 3927N output of a 100mm unit. The adjustable stroke is ideal for machine setups requiring fine end-position tuning during commissioning or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot match. If the machine cycle demands true load holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead of relying on the rear stopper.
For a direct ISO 15552 replacement, match the 80mm bore, 170mm stroke, 20mm adjustment range, PT tapered port threads, and standard carbon steel rod. Since this unit lacks the -S magnet option, it cannot host reed or electronic sensors; if position detection is needed, select an -S variant to support CMSE or DMSE switches. Although the 170mm stroke is relatively short, always ensure the 25mm rod is adequately supported by external guides to prevent binding.
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 SAIJ80X170-20 FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the 170mm nominal stroke by up to 20mm, yielding a 150-170mm usable travel window. It works with the air cushions to set the end position but does not lock the load without live air.
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