Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 30mm 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
- Stroke30 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S
The AirTAC SAIJ63X30-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 10 to 30 mm, letting you dial back the 30 mm nominal stroke by up to 20 mm during commissioning. Delivering 1559 N of push force at 0.5 MPa, it handles mid-range automation tasks with precision.
This variant includes a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides, and the -S magnet supports position detection via AirTAC CMSE reed or DMSE electronic switches.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 30 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 SAIJ63AX30-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×30 | 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 SAIJ63AX30-20S Is Used
End-Position Tuning
Fine-tune the retract distance within a 10-30 mm window during machine setup to achieve exact positioning without external stops.
Product Changeover
Quickly adjust the cylinder's effective stroke on the line when switching to a different product size, minimizing downtime.
Assembly Clamping
Apply 1559 N of clamping force at 0.5 MPa while allowing slight travel adjustments to accommodate varying part tolerances.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX30-20S the Right Cylinder?
Choose this 63 mm bore when you need more force than the 50 mm class (982 N push at 0.5 MPa) but want to avoid the bulk of an 80 mm cylinder. The adjustable stroke is perfect for applications requiring variable end-stops or product changeovers without swapping cylinders. For fixed travel without a rear adjuster, the standard SAI series is a simpler alternative.
This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. Note that the rear adjuster acts only as a travel stop to decelerate the load; it does not hold position without live air. For true load-holding, consider the SAIL or BSAI series.
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 SAIJ63AX30-20S FAQ
The rear adjuster screw lets you shorten the 30 mm nominal stroke by up to 20 mm, providing a usable travel window of 10 to 30 mm for fine-tuning at commissioning.
At 0.5 MPa operating pressure, this 63 mm bore cylinder delivers 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N push at 0.9 MPa.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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