Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm 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
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S
The AirTAC SAIJ80X190-50-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, equipped with a magnet for position sensing. It delivers a robust 2513N push force at 0.5 MPa and features a 25mm carbon steel rod with an M20x1.5 thread. The integrated sensor groove accommodates AirTAC CMSE reed and DMSE electronic solid-state switches.
This model provides a usable travel window of 140 to 190mm, allowing you to dial back the nominal 190mm stroke by up to 50mm. The external rear adjusting screw acts purely as a mechanical stop to set the end position; it does not lock or hold the load without live air pressure. For dead-load holding, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 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 SAIJ80X190-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 SAIJ80X190-50S Is Used
Variable End-Stop Setup
Dial in the exact retract distance between 140 and 190mm during machine commissioning to accommodate varying material thicknesses without external spacers.
Product Size Changeover
Quickly adjust the stroke stop on packaging lines when switching between different package dimensions, reducing downtime and manual retooling.
Clamping Force Application
Leverage the 2513N push force at 0.5 MPa to securely clamp workpieces while using the rear screw to precisely set the final clamping depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-50S the Right Cylinder?
Choose this 80mm bore when you need higher thrust than a 63mm bore (which provides 1559N push at 0.5 MPa) but want to avoid the larger footprint of a 100mm bore. The 50mm adjustment range is ideal for product changeovers on a line, letting you fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops. It supports a speed range of 30 to 800mm/s and uses G3/8 ports.
As a dimensionally interchangeable ISO 15552 cylinder, it uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because the 190mm stroke is under 300mm, side-load stress is moderate, but long unsupported loads should still use an external guide.
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 SAIJ80X190-50S FAQ
At a 0.5 MPa operating pressure, this 80mm bore cylinder generates a push force of 2513N and a pull force of 2268N. It can reach a maximum push force of 4523N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 190mm down to 140mm, creating a 50mm adjustable window. It functions as a mechanical stop for end-position tuning and requires live air pressure to hold the load.
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