Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-30 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 SAIJ63AX200-30
The AirTAC SAIJ63X200-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 200 mm stroke that can be dialed back by up to 30 mm, creating a precise 170-200 mm usable travel window for fine-tuning end positions during commissioning. Delivering 1559 N of pull force at 0.5 MPa, it handles robust actuation tasks while maintaining a standard ISO 15552 mounting footprint.
This variant is built with an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads with a G3/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts strictly as a travel stop to set deceleration, meaning it will not hold a load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-30 |
|---|---|
| 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 SAIJ63AX200-30
| 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 SAIJ63AX200-30 Is Used
Machine Changeover
Dial in the 170-200 mm travel window during product size transitions to set new end positions rapidly without changing the cylinder.
End-Position Tuning
Fine-tune the retract stop at commissioning to achieve exact positioning without fabricating custom external stopper blocks.
Variable Stops
Adjust the effective stroke on packaging lines to handle different package lengths on the fly using the rear adjustment screw.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-30 the Right Cylinder?
Select this 63 mm bore cylinder when an application requires 1559 N pull force at 0.5 MPa but demands variable end-stop positioning. If you need less force, stepping down to a 50 mm bore yields 825 N pull, while stepping up to an 80 mm bore provides 2268 N. Choose the SAIJ adjustable-stroke design over a fixed SAI model when you need to accommodate product size changeovers without physically swapping the cylinder or adding external stops. For load-holding requirements without continuous air pressure, integrate an external pilot-operated check valve or select a different AirTAC series like the SAIL or BSAI.
To match this exact replacement, specify a 63 mm bore, 200 mm stroke, 30 mm adjustment range, PT port threads, and the SUS420J2 rod material. Because the stroke is 200 mm, ensure adequate external guiding to prevent excessive side-loading on the rod. SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ63AX200-30 FAQ
The rear adjuster acts as a mechanical stop that shortens the retract stroke by up to 30 mm, providing a usable travel window of 170-200 mm. It sets the travel end and deceleration point but does not lock or hold the load without live air pressure.
At 0.5 MPa operating pressure, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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