Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40 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 SAIJ80X170-40
The AirTAC SAIJ80X170-40 is a double-acting profile cylinder featuring an extruded aluminum barrel and a rear stroke adjuster. It provides a usable travel window of 130 to 170 mm, letting you dial back the nominal 170 mm stroke by up to 40 mm during commissioning. In the 80 mm bore class, it delivers 2513 N of pull force at 0.5 MPa and reaches speeds of 30-800 mm/s.
This ISO 15552 dimensionally interchangeable unit uses a 25 mm carbon steel rod with an M20x1.5 thread, giving it solid rigidity against side loads. The rear adjuster acts purely as a mechanical stop to set the retract end position and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40 |
|---|---|
| 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 SAIJ80X170-40
| 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 SAIJ80X170-40 Is Used
Machine Changeover
Dial in the exact retract distance from 130 to 170 mm when switching product sizes on an assembly line without physically swapping the cylinder.
End-Position Tuning
Fine-tune the final retract position during commissioning to compensate for mechanical wear or sensor placement variations.
Variable End Stops
Set precise mechanical stops for heavy-duty clamping or pressing tasks that require up to 2513 N of pull force at 0.5 MPa.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X170-40 the Right Cylinder?
Choose this 80 mm bore when an application requires substantial force, such as the 2513 N pull at 0.5 MPa, but needs finer end-position tuning than a fixed-stroke SAI cylinder offers. If your setup demands less force, stepping down to a 63 mm bore yields 1402 N of pull, whereas larger 100 mm bores push up to 3927 N. The PT tapered port thread and G3/8 air supply size are set by the bore.
The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR variants. Because the 170 mm stroke is below the 300 mm side-load threshold, external guiding is less critical here than on longer strokes, though the 25 mm rod already handles standard stresses well.
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 SAIJ80X170-40 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, creating a usable travel window of 130 to 170 mm. This mechanical stop sets the retract end position but does not lock or hold the load without live air pressure.
At 0.5 MPa, the SAIJ80X170-40 provides 2513 N of pull force and 3518 N of push force. It can reach a maximum push force of 4523 N at 0.9 MPa.
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