Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 50mm 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.
- BoreØ80 mm
- Stroke50 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S
The B04-SAUD80X50S is an AirTAC double-acting double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD80X50S, mechanically identical to the base unit. Because a rod exits both ends, the output is equal in both directions at 2268 N each way at 0.5 MPa. The extruded aluminum profile barrel keeps the total length shorter than an ISO 15552 cylinder of the same bore. It features a 3/8 inch port and M20x1.5 rod threads.
This unit includes the -S magnet option for CMSG, DMSG, or EMSG switches. The rear protruding rod is perfect for mounting a sensor cam or tripping a switch. A plain cylinder drifts on air loss; the adjustable 28 mm cushions only decelerate near stroke end, so use an external rod lock to hold loads.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S Is Used
Excavator Valve Actuation
Drives twin valve links in heavy machinery with equal push and pull force, preventing rotational binding under high pressure.
Crusher Tool Sync
Synchronizes dual crushing jaws using the back rod for a switch cam, ensuring precise material processing in harsh environments.
Loader Pin Extraction
Extracts heavy pivot pins on construction loaders, using the equal bidirectional force to seat and remove tooling reliably.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S the Right Cylinder?
Size both ways: the 63 mm bore yields 1402 N equal force at 0.5 MPa, while the 100 mm bore yields 3681 N. Choose this 80 mm double-rod model when you need anti-rotation guidance, twin tooling, or back-end sensing on a 50 mm stroke. Mounting is limited to Basic, FA flange, and LB foot, matching the AirTAC SC series. The -S magnet enables position sensing. For any stroke over 300 mm, add external guide rails to prevent side-load wear.
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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD80X50S FAQ
The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD80X50S, sharing identical specs. Force is equal both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. It uses a 3/8 inch port.
The double rod provides anti-rotation stability and allows the back rod to carry a sensor cam. The -S magnet enables CMSG, DMSG, or EMSG switches. The profile barrel is shorter than standard, and Viton H seals can raise the temperature limit to 150 C.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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