Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S
The AirTAC SAIJ63X350-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 250-350 mm usable travel window, allowing you to dial back the nominal 350 mm stroke by up to 100 mm. In the 63 mm bore class, it delivers 1559 N pull and 2182 N push at 0.7 MPa, making it well-suited for medium-force handling tasks.
This configuration includes a SUS420J2 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel integrates sensor grooves on both sides, and the included magnet supports position detection via AirTAC CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop for end-position tuning, not a lock, meaning live air pressure is always required to hold the load.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAIJ63AX350-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAIJ63AX350-100S Is Used
Variable End-Stop Tuning
Dial in the exact 250-350 mm travel distance during machine commissioning to accommodate different material thicknesses without adding external physical stops.
Product Changeover
Quickly adjust the retract end-position on packaging lines when switching to a new carton size, utilizing the 100 mm trim window to maintain timing.
Medium-Force Positioning
Leverage the 2182 N push force at 0.7 MPa to shift medium-weight jigs or workpieces, relying on the SUS420J2 rod for wear resistance in dynamic operations.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-100S the Right Cylinder?
Choose this 63 mm bore model when your application requires 1559 N of pull force at 0.5 MPa, stepping up from a 50 mm bore that offers 825 N pull, or stepping down from an 80 mm bore providing 2268 N pull. The 100 mm adjustment range is ideal for machine setups requiring variable end-stops or product-size changeovers without physically swapping the cylinder for a shorter unit. For load-holding without continuous air pressure, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder, as the SAIJ adjuster only decelerates travel.
To replace an ISO 15552 cylinder, match the 63 mm bore, 350 mm stroke, 100 mm adjustment, PT G3/8 port, and the -S magnet. Because the stroke is 350 mm, the M16x1.5 rod should be guided externally to prevent excessive side-loading and premature seal wear. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX350-100S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1402 N of push force. If you increase the pressure to 0.7 MPa, the push force rises to 2182 N.
The rear adjuster screw lets you shorten the effective travel from the nominal 350 mm down to a minimum of 250 mm. This creates a 250-350 mm adjustable window for fine-tuning end-positions at commissioning, but it functions as a travel stop and does not lock the load without live air.
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