Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40
The AirTAC SAIJ80X175-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down by up to 40 mm. This yields a usable end-position window of 135 to 175 mm, letting you dial in the retract stop precisely during commissioning or product changeover without adding external stops. It delivers 2513 N of push force at 0.5 MPa and utilizes a 25 mm carbon steel rod with an M20x1.5 thread.
This 80 mm bore model uses G3/8 ports and includes variable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel incorporates sensor grooves on both sides for CMSE reed or DMSE solid-state switches, though this specific SKU is supplied without a magnet. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some other variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAIJ80X175-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80X175-40 Is Used
Product Changeover Dials
Quickly fine-tune the 135-175 mm retract position when switching a packaging line to a different carton size, eliminating the need to swap out the entire actuator.
End-Stop Calibration
Nail the exact end-of-stroke position during machine commissioning by turning the rear screw, avoiding the hassle of machining external stop blocks.
Variable Diverter Stroke
Adjust the physical travel limit on a conveyor sorting arm to handle varying package lengths on the fly without reprogramming the machine controller.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40 the Right Cylinder?
Choose this 80 mm bore if your application requires the 2513 N push force at 0.5 MPa (or 3518 N at 0.7 MPa), which is a significant step up from the 50 mm bore's 982 N output. The adjustable-stroke feature is ideal when machine setups require variable end-stops for different product sizes, whereas a fixed SAI cylinder would lock you into a single 175 mm travel. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. To replace an ISO 15552 unit, match the 80 mm bore, 175 mm stroke, 40 mm adjustment range, G3/8 PT ports, and the required mounting interface.
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 SAIJ80X175-40 FAQ
A rear adjuster screw lets you shorten the nominal 175 mm stroke by up to 40 mm, providing a usable travel window of 135 to 175 mm. This stopper sets the retract end position but does not lock the load without continuous air pressure.
At a 0.5 MPa operating pressure, the SAIJ80X175-40 generates 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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