Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40S 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 SAIJ80X190-40S
The AirTAC SAIJ80X190-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 150 to 190 mm without swapping out the unit. It delivers a robust 2513 N of push force at 0.5 MPa, making it well-suited for medium-to-heavy handling tasks. The extruded aluminum barrel includes sensor grooves on both sides, and because this is the -S variant, it comes magnetically equipped for direct switching with CMSE reed or DMSE electronic sensors.
This model uses a 25 mm carbon steel rod with an M20x1.5 thread, providing a sturdy interface that handles side loads effectively, though any stroke near or over 300 mm still requires an external guide. The rear stopper acts purely as a travel end-deceleration mechanism, not a lock, meaning it cannot hold the load without live air pressure. It supports the standard SAIJ mounting set, including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40S |
|---|---|
| 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 SAIJ80X190-40S
| 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 SAIJ80X190-40S Is Used
Variable End-Stop Tuning
Dial in the exact clamping position during machine commissioning by adjusting the rear screw up to 40 mm, avoiding the need to machine custom spacers or swap cylinders for different material thicknesses.
Product Size Changeover
Quickly adapt automated packaging lines to new carton dimensions by shifting the effective stroke from 150 to 190 mm, minimizing downtime between production runs.
Dynamic Diverter Positioning
Set precise retract distances for sorting pushers on a conveyor belt, allowing the 2513 N pull force to handle varying package sizes without repositioning the physical cylinder mount.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than a 63 mm cylinder (1559 N at 0.5 MPa) but does not need the full 3927 N push force of a 100 mm unit. The 40 mm adjustment range is ideal for production lines running multiple product sizes, allowing operators to dial in the exact end-stop during changeovers rather than physically replacing the cylinder or adding external stops. If your process demands positive load-holding without live air, this standard SAIJ is not the right choice; you should step up to the SAIL pneumatic lock or BSAI clamp-lock series instead.
To match this exact ISO 15552 interchangeable replacement, specify an 80 mm bore, 190 mm stroke, 40 mm rear adjustment, PT tapered port threads, and the -S magnet option for sensor compatibility. The dual-side cushioning provides variable air damping at both ends to absorb kinetic energy, operating at speeds between 30 and 800 mm/s.
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 SAIJ80X190-40S FAQ
The rear external adjusting screw acts as a mechanical stopper that lets you shorten the effective stroke by up to 40 mm. This creates a usable travel window between 150 and 190 mm, allowing you to fine-tune the end position at commissioning without changing the cylinder itself.
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at its maximum rated pressure of 0.9 MPa.
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