Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40S 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 SAIJ80X175-40S
The AirTAC SAIJ80X175-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 175 mm nominal stroke that can be dialed back by up to 40 mm, yielding a precise 135-175 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it handles substantial loads while allowing on-the-fly end-position tuning during commissioning or product changeovers.
This variant includes a standard carbon steel piston rod and PT tapered port threads. The -S suffix denotes an integrated magnet for position sensing with AirTAC CMSE reed or DMSE electronic solid-state switches. The extruded aluminum barrel provides dual sensor grooves, and the adjustable stopper simply acts as a travel limit—it does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40S |
|---|---|
| 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 SAIJ80X175-40S
| 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 SAIJ80X175-40S Is Used
Product Changeover
Dial in the 135-175 mm travel window during format size changes on packaging lines, using the rear screw to set new end positions rapidly without mechanical rebuilds.
Machine Setup
Fine-tune the exact retract end-stop during initial commissioning to perfect tooling alignment, absorbing mechanical tolerances directly at the cylinder.
Variable End Stops
Sort or divert items of varying sizes on a conveyor by adjusting the stroke length on the fly to accommodate different package dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-40S the Right Cylinder?
Choose this 80 mm bore when an application requires approximately 2513 N of thrust at 0.5 MPa and the ability to fine-tune the retract distance without swapping cylinders or adding external stops. If your setup needs less force, stepping down to a 63 mm bore provides 1559 N; if more force is required, a 100 mm bore offers 3927 N. Because this model features a 175 mm stroke, it falls under the 300 mm threshold where an external guide becomes strictly mandatory, though the 25 mm rod and M20x1.5 thread naturally provide good side-load resistance.
To match this adjustable cylinder exactly, specify an 80 mm bore, 175 mm nominal stroke, 40 mm adjustment range, PT port threads, and the -S magnet option. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster is a stop, not a brake; for dead-load holding without live air, select an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80X175-40S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At a maximum 1.0 MPa, the push force reaches 513 kgf.
The rear adjuster screw allows you to shorten the 175 mm nominal stroke by up to 40 mm, creating a usable travel window of 135-175 mm. The screw acts as a mechanical stop to tune the end position, but it does not lock the load without continuous air pressure.
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