Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S
The AirTAC SAIJ63X280-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 180 to 280 mm. Driven by a 20 mm rod through a G3/8 port, it generates 1559 N of pull force at 0.5 MPa. The generous 100 mm adjustment range allows operators to dial in exact retract end positions during product changeovers without swapping hardware.
This unit features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel retains sensor grooves on both sides, and the rear screw functions purely as a travel stop for deceleration, not a load-holding lock.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 280 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 SAIJ63AX280-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×280 | 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 SAIJ63AX280-100S Is Used
Product Size Changeovers
Leverage the 180-280 mm travel window to accommodate varying material lengths on a single line, using the rear screw to set new retract positions rapidly.
Machine Setup Tuning
Fine-tune the end-of-stroke position during initial commissioning without machining external stop blocks or changing the cylinder.
Variable End Stops
Use the 100 mm adjustment range to modify the retract distance for delicate positioning tasks while relying on the standard air cushion for smooth deceleration.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX280-100S the Right Cylinder?
Choose this 63 mm bore when you need 1559 N pull force at 0.5 MPa combined with highly variable end-stop tuning. If your application requires less force, stepping down to a 50 mm bore yields 825 N pull; if you need more clamping power, an 80 mm bore provides 2268 N. Because the nominal stroke is 280 mm, an external guide is recommended to prevent excessive side-loading on the rod.
Select the adjustable SAIJ over a fixed-stroke SAI when a machine handles multiple product sizes and needs rapid commissioning tweaks. For exact ISO 15552 replacement matching, confirm the 63 mm bore, 280 mm stroke, 100 mm adjuster, PT tapered port threads, SUS420J2 rod, and the -S magnet. Remember that the rear adjuster only sets the travel end; to hold a load without live air pressure, use an external rod lock or pilot-operated check valve.
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 SAIJ63AX280-100S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjuster acts as an external stop that lets you shorten the effective stroke by up to 100 mm, creating a usable travel window of 180 to 280 mm. It sets the end position but does not lock the load without continuous air pressure.
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