Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 35mm 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
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S
The AirTAC SAIJ63X35-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 1402N pull force at 0.5MPa and uses a SUS420J2 stainless steel rod. The built-in magnet supports CMSE reed and DMSE electronic sensors for precise position detection.
With a 35mm nominal stroke and a 30mm adjustment range, you can dial back the effective travel to anywhere between 5 and 35mm. This built-in mechanical stop lets you fine-tune the end position at commissioning without adding external stops. The adjuster only sets the travel end and does not hold the load without live air; for that, use a SAIL or BSAI cylinder.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 35 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 SAIJ63AX35-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×35 | 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 SAIJ63AX35-30S Is Used
Product Changeovers
Dial in the 5-35mm stroke window instantly during format changeovers on packaging lines without swapping cylinders.
Machine Setup
Use the rear stopper to set exact retract positions during initial commissioning, avoiding external stop blocks.
End-Stop Tuning
Fine-tune the final retract position to compensate for mechanical wear or sensor drift over time.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX35-30S the Right Cylinder?
Choose this adjustable model over a fixed SAI when your machine setup requires variable end-stops or product-size changeovers. If your application needs less force, stepping down to a 50mm bore yields 825N pull at 0.5MPa. For higher thrust, an 80mm bore provides 2268N pull.
To match this ISO 15552 interchangeable cylinder, specify the 63mm bore, 35mm stroke, 30mm adjustment, PT tapered G3/8 ports, SUS420J2 rod, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the travel is short, side-load risks are minimal, but always guide the load externally.
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 SAIJ63AX35-30S FAQ
At 0.5MPa operating pressure, this 63mm bore cylinder provides 1559N push force and 1402N pull force. It can reach up to 318 kgf at 1.0MPa.
The nominal stroke is 35mm, but the rear adjuster lets you shorten the effective travel by up to 30mm. This creates a usable 5-35mm stroke window for exact positioning without changing the cylinder.
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