Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20
The AirTAC Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 is a genuine double-acting profile-type standard air cylinder with a Ø63mm bore and 450mm stroke, 3/8" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ63 mm
- Stroke450 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20
The AirTAC SAUJ63X450-20 is a double-acting single-rod profile cylinder with a 450 mm maximum extend stroke. An external stop screw lets you trim the extend travel by up to 20 mm on-site, yielding a usable 430-450 mm window without buying a new actuator. It features a 3/8" port, an M16x1.5 rod thread, and 21 mm adjustable air cushions. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This 63 mm bore generates 1559 N push and 1402 N pull at 0.5 MPa, peaking at 2805 N push at 0.9 MPa. For sizing, the safe working load is roughly 935 N (about 60% of the 0.5 MPa push), and it can vertically lift around 79 kg with a 2:1 margin. The stop screw strictly sets the end position; it is not a load lock. This SKU lacks a magnet, so it cannot accept CMSG or DMSG sensors.
Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 Technical Specifications
| Model | Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø63 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 21 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
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 SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20
| SAU | Profile-type standard cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 Is Used
Press Tonnage Calibration
Perfect for light press assemblies needing exact 430-450 mm end-position tuning to compensate for material thickness variations on the fly.
Divert Gate Timing
Trimming the extend stroke by up to 20 mm allows precise synchronization of divert gates without machining new hard stops.
Pallet Stop Positioning
Adjust the external stop screw to dial in the exact pallet halt point on-site, ensuring smooth handoff to downstream stations.
Is the Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 the Right Cylinder?
Size this 63 mm bore against the neighboring 50 mm (982 N push @0.5 MPa) and 80 mm (2513 N push @0.5 MPa) options to match your force needs. Choose the SAUJ over a fixed SAU plus external stop when you need integrated, compact stroke adjustment right at the cylinder body. The 20 mm adjust window is ideal for final machine timing tweaks. Mounting options include Basic, FA flange, and LB foot, compatible with the AirTAC SC series. Because this SKU lacks the -S magnet, it cannot support magnetic sensing. Finally, at a 450 mm stroke, use external guides to prevent rod bending and manage side loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/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 — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ63 Adjustable Pneumatic Cylinder SAUJ63X450-20 FAQ
This 63 mm bore cylinder delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and 2805 N push at 0.9 MPa. The theoretical max is 318 kgf at 1.0 MPa. It has a 450 mm maximum stroke, and the external stop screw allows you to shorten the extend stroke by up to 20 mm on-site, giving a 430-450 mm working range. It uses a 3/8" port.
The external stop screw mechanically limits the piston's extend travel, letting you trim the stroke by up to 20 mm. This stop only sets the end position; it is not a load lock. A plain cylinder does not hold a load on air loss or when the valve is centered, as the piston will drift and the 21 mm air cushion only decelerates near the end. For a held load, use an external rod lock or pilot-operated check valve. Also, this non-S SKU lacks a magnet and cannot take sensors.
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