Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-20 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 SAIJ63AX200-20
The AirTAC SAIJ63X200-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 180-200 mm usable travel window, allowing you to trim the effective stroke by up to 20 mm during commissioning without swapping the cylinder. Delivering 1559 N of push force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod and PT tapered ports.
This adjustable-stroke model uses the standard extruded aluminum barrel with sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop for end-position tuning; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-20 |
|---|---|
| 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 SAIJ63AX200-20
| 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 SAIJ63AX200-20 Is Used
Machine Changeover
Dial in the exact 180-200 mm end position during product size changes without adding external stops.
End-Position Tuning
Fine-tune the retract stroke by up to 20 mm at commissioning to perfect the tooling alignment.
Assembly Line Setup
Use the rear mechanical stop to set precise travel limits for varying component placement tasks.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-20 the Right Cylinder?
Choose this 63 mm bore cylinder when you need 1559 N push force at 0.5 MPa with fine end-position control. If your application requires less force, the 50 mm bore offers 982 N; if you need more, step up to the 80 mm bore providing 2513 N. The adjustable 180-200 mm window is ideal for machine setups requiring variable end stops rather than a fixed SAI cylinder.
Since the 200 mm stroke exceeds the 300 mm threshold requiring external guidance, ensure you use an external guide to support side loads. This SKU features PT tapered ports, omits a magnet for sensors, and uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR.
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 SAIJ63AX200-20 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 200 mm stroke by up to 20 mm, creating a 180-200 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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