Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm 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.
- BoreØ63 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50
The AirTAC SAIJ63X200-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 200 mm travel back by up to 50 mm, creating a precise 150-200 mm usable window. It delivers 2182 N of push force at 0.7 MPa, making it well-suited for medium-duty positioning tasks.
This SKU is configured with a SUS420J2 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. Unlike fixed-stroke SAI units, the external rear stopper allows you to dial in the retract end-position at commissioning without adding external stops or swapping the cylinder.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 Is Used
Machine Changeover
Fine-tune the 150-200 mm end-stop during product size transitions without replacing the cylinder or bolting on external stops.
End-Position Trimming
Dial in the exact retract distance up to 50 mm during commissioning to compensate for mechanical tolerances in the fixture.
Variable Stroke Stops
Set the precise travel window on automated lines where the rear end-position needs occasional adjustment based on part dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 the Right Cylinder?
Choose this 63 mm bore if your application requires the 2182 N push force at 0.7 MPa and you need a 150-200 mm travel window. If your setup requires less force, the 50 mm bore provides 1374 N; if you need more, the 80 mm bore offers 3518 N.
Because the 200 mm stroke exceeds 300 mm? No, but even at 200 mm, long unsupported strokes still need an external guide to manage side loads. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, select a SAIL or BSAI cylinder. This unit is dimensionally interchangeable per ISO 15552.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-50 FAQ
At an operating pressure of 0.7 MPa, this 63 mm bore cylinder provides a push force of 2182 N and a pull force of 1402 N. The maximum force at 1.0 MPa is 318 kgf.
The rear adjuster acts as a stopper that lets you shorten the 200 mm nominal stroke by up to 50 mm, providing a usable travel window of 150-200 mm. It only sets the travel end and does not lock the load without live air pressure.
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