Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm 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
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S
The AirTAC SAIJ80X200-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 200 mm stroke that can be dialed back by up to 50 mm, creating a precise 150-200 mm usable travel window for fine-tuning end positions at commissioning. With an 80 mm bore, it generates 2513 N of push force and 2268 N of pull force at 0.5 MPa.
This model includes a standard magnet for position sensing with CMSE reed and DMSE electronic switches. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting. The M20x1.5 piston rod offers robust resistance to side loads, while the rear stopper acts solely as a travel delimiter and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAIJ80X200-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SAIJ80X200-50S Is Used
Product Changeover Setup
Dial back the travel from 200 mm to 150 mm during packaging format changes to accommodate different box sizes without physically replacing the cylinder.
End-Position Calibration
Fine-tune the exact retract stop during machine commissioning to perfect a pressing or clamping operation without machining external spacers.
Variable Stroke Forming
Adjust the effective stroke window on the fly for multi-model assembly lines where the rear stop position must adapt to different component heights.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-50S the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires 2513 N of push force at 0.5 MPa, or step down to the 63 mm bore providing 1559 N if your load is lighter. The 50 mm adjustment range is ideal for product changeovers on a production line, allowing you to shorten the stroke from 200 mm down to 150 mm without swapping the cylinder or adding external stops. Unlike the fixed-stroke SAI series, this SAIJ variant enables variable end-stops during machine setup.
For ISO 15552 replacement matching, verify the 200 mm stroke, 50 mm adjustment, PT tapered port threads, and the -S magnet option. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories. Because the stroke is 200 mm, ensure proper guiding for any unsupported loads to prevent rod binding. For load-holding without live air, select a SAIL or BSAI cylinder instead, as the rear adjuster here is a stop, not a lock.
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 SAIJ80X200-50S FAQ
At 0.5 MPa operating pressure, the 80 mm bore provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the effective travel from the 200 mm nominal stroke down to 150 mm, creating a 150-200 mm usable window. It acts as a mechanical stop to tune end positions and does not lock the load without continuous air pressure.
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