Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X400S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X400S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 400mm stroke, 1/2" 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.
- BoreØ100 mm
- Stroke400 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 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-SAUD100X400S
The B04-SAUD100X400S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as a construction-machinery dedicated variant, mechanically identical to the standard SAUD100X400S. A 25mm rod exits both ends, yielding equal push and pull force of 3681 N each way at 0.5 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same 100mm bore.
This design prevents piston twist and allows a sensor cam to ride the back rod. The -S suffix enables CMSG, DMSG or EMSG switches via a built-in magnet, while Viton H seals can raise the operating ceiling to 150 C.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X400S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X400S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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-SAUD100X400S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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-SAUD100X400S Is Used
Excavator Valve Bank Shifting
Drives twin control levers simultaneously on heavy machinery with equal force, using the back rod to trigger a travel limit switch.
Crane Load Stabilizer
Applies balanced clamping pressure from both rod ends to steady suspended loads on mobile cranes without rotational drift.
Rock Crusher Feed Gate
Synchronizes the opening and closing of dual wear plates in aggregate processing equipment, handling high dynamic forces.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X400S the Right Cylinder?
When sizing this 100mm bore, note the neighboring 80mm option provides 2268 N each way at 0.5 MPa. If your heavy-equipment fixture requires more power, this 100mm unit delivers 3681 N both directions. Choose a double-rod cylinder when you need anti-rotation guidance, twin-tool driving, or back-end sensing. Mounting is limited to Basic, FA flange, and LB foot styles compatible with the AirTAC SC series. Because the stroke is 400mm, external guides are recommended to prevent rod bending under side loads. The -S magnet allows solid-state 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-SAUD100X400S FAQ
Force is equal both ways due to the double-rod design: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. It features a 100mm bore, a 25mm rod, M20x1.5 rod threads, and a 1/2 inch port.
No, a plain cylinder drifts without live air. The adjustable 29mm cushions only decelerate the piston near stroke end. For secure load holding, install an external rod lock or pilot-operated check valve.
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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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