Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S
The AirTAC SAIJ63X120-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 120 mm nominal stroke that can be dialed back by up to 10 mm, providing a precise 110-120 mm usable travel window for fine-tuning end positions during commissioning. Built with an extruded aluminum barrel housing sensor grooves on both sides, this unit accepts CMSE reed and DMSE electronic switches for versatile position feedback.
Delivering 1559 N of pull force at 0.5 MPa and up to 2805 N of push force at 0.9 MPa, it fits robust actuation tasks. The piston rod is crafted from SUS420J2 stainless steel, offering enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and includes variable air cushions at both ends to manage impact deceleration.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAIJ63AX120-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SAIJ63AX120-10S Is Used
Product Changeover
Dial in the 110-120 mm travel window during line changeovers to accommodate different package lengths without replacing hardware.
End-Position Tuning
Fine-tune the retract stroke within 10 mm during setup to align tooling perfectly, eliminating the need for external mechanical shims.
Sensor-Driven Logic
Leverage the -S magnet with DMSE electronic or CMSE reed switches to confirm the adjusted end position in automated control sequences.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-10S the Right Cylinder?
Choose this 63 mm bore when a 40 mm bore yields insufficient thrust (only 528 N pull at 0.5 MPa) but an 80 mm bore is physically oversized. The integrated 10 mm rear stopper screw allows you to trim the effective stroke on the fly without swapping the cylinder or adding external stops, which is ideal for machines processing varying product sizes. For strokes of 120 mm, side-load risks are minimal, but long unsupported travel still requires an external guide. To replace an ISO 15552 cylinder, match the 63 mm bore, 120 mm stroke, 10 mm adjustment, PT G3/8 port, and the -S magnet. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-air 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 SAIJ63AX120-10S 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 its maximum 1.0 MPa pressure, it delivers up to 318 kgf.
The rear adjuster acts as a mechanical stopper that shortens the 120 mm nominal stroke by up to 10 mm, creating a 110-120 mm travel window. It only sets the end position and does not lock the load without live air pressure.
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