Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20
The AirTAC Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 475mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke475 mm
- Port size1/4"
- 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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20
The AirTAC SAUJ50X475-20 is a double-acting, single-rod profile cylinder with an on-site extend stroke trim of up to 20 mm. An external stop screw lets you dial the usable extend stroke down from the 475 mm maximum to 455 mm. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same 50 mm bore. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable air cushions.
This bore delivers 982 N push and 825 N pull at 0.5 MPa, peaking at 200 kgf at 1.0 MPa. A practical computed insight: the safe working load is roughly 589 N (about 60% of the 0.5 MPa push force), translating to a vertical lift capacity of approximately 50 kg with a 2:1 safety margin. Because this is a non-magnet SKU, it cannot accept CMSG or DMSG sensors.
Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 Technical Specifications
| Model | Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 475 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×475 | 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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 Is Used
Variable-Length Pushing Station
Dial in the exact ejection length on the assembly line. The stop screw trims the extend stroke up to 20 mm to accommodate different product sizes without changing actuators.
Adjustable Transfer Diverter
Position packages precisely onto varying downstream lanes. The external stop allows operators to shorten the 475 mm extend stroke on-site for custom routing setups.
Tunable End-of-Stroke Stop
Set the exact forming depth for different carton sizes. The 20 mm adjustment window provides the flexibility needed for frequent format changes in packaging lines.
Is the Airtac SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 the Right Cylinder?
Size this 50 mm bore against its neighbors: a 40 mm bore yields 628 N push at 0.5 MPa, while a 63 mm bore provides 1559 N. Choose the 50 mm bore when your application requires around 982 N of push force. Select the SAUJ over a fixed SAU when you need field tuning of the extend end position; here, the -20 mm window lets you shorten the stroke on-site without buying a new actuator. Mounting options include Basic, FA flange, and LB foot styles, sharing compatibility with the AirTAC SC series only. At a 475 mm stroke, external guides are strongly recommended to prevent rod bending and manage side loads. Note that this specific SKU lacks the -S magnet, so it cannot support magnetic position sensing.
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 SAUJ50 Adjustable Stroke Cylinder SAUJ50X475-20 FAQ
This 50 mm bore cylinder provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, 1767 N push at 0.9 MPa, and a theoretical max of 200 kgf at 1.0 MPa. The 475 mm nominal extend stroke can be shortened by up to 20 mm on-site using the external stop screw, yielding a usable range of 455-475 mm. The air cushion decelerates the piston but does not lock the load.
No. A plain SAUJ cylinder drifts when air is lost or the valve is centered. The adjustable stop screw only sets the end position, and the cushion only decelerates; neither acts as a load lock. For vertical load holding, you must install an external rod lock or a pilot-operated check valve. Additionally, this non-S SKU cannot accept magnetic sensors.
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