Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S
The AirTAC SAIJ63X150-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 150 mm travel by up to 20 mm. This creates a precise 130-150 mm usable window for fine-tuning end positions at commissioning without adding external stops. It delivers a robust 2182 N push force at 0.7 MPa, matching standard SAI output.
This specific configuration features a SUS420J2 stainless steel rod for enhanced durability against moisture and light corrosion. The barrel incorporates sensor grooves on both sides to accept CMSE reed and DMSE electronic switches, while the PT tapered port threads ensure a tight, reliable pneumatic seal on the G3/8 connection.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 150 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 SAIJ63AX150-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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 SAIJ63AX150-20S Is Used
Machine Changeover
Quickly alter the retract end-position by up to 20 mm during product size transitions on a packaging line without swapping the cylinder.
End-Stop Calibration
Dial in the exact 130-150 mm travel window during commissioning to perfect tooling alignment and absorb mechanical tolerances.
Variable Positioning
Set precise retract distances for multi-format assembly stations using the integrated rear stopper rather than external hard stops.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-20S the Right Cylinder?
Choose this 63 mm bore when your application requires roughly 2182 N of push force at 0.7 MPa, stepping up from a 50 mm bore that yields 1374 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeover, providing flexibility that a fixed-stroke SAI cannot match. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, select a SAIL or BSAI series cylinder. To match this ISO 15552 interchangeable unit, specify the 63 mm bore, 150 mm nominal stroke, 20 mm adjustment, PT G3/8 ports, and the -S magnet option.
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 SAIJ63AX150-20S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm from the 150 mm nominal length, providing a usable travel window of 130-150 mm. It acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
At an operating pressure of 0.7 MPa, the SAIJ63X150-20-S generates a push force of 2182 N and a pull force of 1402 N. It can deliver up to 2805 N push force at its maximum rated pressure of 0.9 MPa.
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