Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20S 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 SAIJ80X190-20S
The AirTAC SAIJ80X190-20-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a 190 mm nominal stroke that can be fine-tuned backward by up to 20 mm, yielding a precise 170-190 mm usable travel window for commissioning without external stops. Delivering 4523N of push force at 0.9 MPa, it handles heavy actuation tasks with ease.
This variant includes a standard piston magnet for position sensing with CMSE reed and DMSE electronic switches. It uses a robust 25 mm carbon steel rod with an M20x1.5 thread, paired with 36 mm air cushions at both ends to manage deceleration. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20S |
|---|---|
| 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 SAIJ80X190-20S
| 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 SAIJ80X190-20S Is Used
Machine Changeover
Fine-tune the 170-190 mm travel window during product size transitions on a packaging line without physically replacing the actuator.
End-Position Calibration
Dial in the exact retract stop during machine commissioning to perfect a pressing or clamping operation within a 20 mm range.
Heavy Load Positioning
Leverage the 4523N push force to move heavy jigs or pallets into a specific workstation, using the rear stopper for repeatable end limits.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust, stepping up from a 63 mm bore that provides 2805N at 0.9 MPa. The adjustable rear stopper is ideal for product changeovers, allowing you to dial in the exact end-position without swapping the cylinder. Since the 190 mm stroke exceeds 300 mm is false here, standard guiding is often sufficient, but long unsupported loads still require an external guide to prevent side-loading the 25 mm rod.
For drop-in ISO 15552 interchangeability, match the 80 mm bore, 190 mm stroke, 20 mm adjustment range, PT tapered port thread, and the -S magnet configuration. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true pneumatic locking, consider the SAIL or BSAI series 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 SAIJ80X190-20S FAQ
It features a rear adjusting screw that allows you to shorten the effective stroke by up to 20 mm. This creates a 170-190 mm usable travel window, enabling precise end-position tuning at commissioning without adding external stops.
At 0.9 MPa, the SAIJ80X190-20-S generates 4523N of push force and 4071N of pull force. The maximum thrust is 513 kgf at 1.0 MPa.
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