Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 75mm 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
- Stroke75 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S
The B04-SAUD50X75S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD50X75S, sharing identical mechanics. A rod exits both ends, meaning both faces use the rod-side area. Output is equal both ways at 825 N at 0.5 MPa. The extruded aluminium profile barrel is shorter than an ISO 15552 unit of the same bore.
This unit includes a piston magnet for CMSG, DMSG, or EMSG switches. A Viton H seal option raises the operating ceiling to 150 C.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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 | 825 N | 825 N |
| 0.7 MPa | 1155 N | — |
| Max (@1.0 MPa) | 168 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-SAUD50X75S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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-SAUD50X75S Is Used
Excavator Valve Tripping
Uses the back rod to trigger a sequence switch while the front rod shifts a heavy-equipment hydraulic pilot valve.
Twin-Tool Actuation
Drives two synchronized assembly tools from one piston, ensuring perfectly balanced force on both strokes.
Non-Rotating Lift
Lifts construction panels straight up without twist, relying on the dual rods for strict anti-rotation guidance.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S the Right Cylinder?
Select this 50mm bore when your application needs equal push and pull thrust, anti-rotation guidance, or twin tooling. It yields 825 N each way at 0.5 MPa. If you need less force, the 40mm bore provides 528 N; for more power, the 63mm bore offers 1402 N. Mounting is limited to Basic, FA, and LB styles, matching the AirTAC SC series. The 75mm stroke is short, but for any stroke over 300mm, add an external guide to prevent side-load wear. The -S suffix enables electronic 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X75S FAQ
The B04- prefix designates the construction-machinery dedicated line, mechanically identical to the SAUD50X75S. Because it is a double-rod cylinder, force is equal both ways: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. The 1/4" port and M16x1.5 thread are fixed by the 50mm bore.
No, a plain double-rod cylinder drifts without live air; the adjustable 21mm cushions only decelerate near stroke end. To hold a vertical load securely on construction equipment, install an external rod lock or pilot-operated check valve.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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