Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X400S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X400S is a genuine double-acting profile-type standard air cylinder with a Ø32mm bore and 400mm stroke, 1/8" 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.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- 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-SAUD32X400S
The B04-SAUD32X400S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD32X400S, sharing identical mechanics. A rod exits both ends, meaning both faces use the rod-side area. Output is equal both ways at 345 N each way at 0.5 MPa. The extruded aluminium body is shorter than an ISO 15552 cylinder of the same bore.
With a 1/8" port and 400 mm stroke, this unit suits synchronized or twin-tool duty. The back rod can carry a sensor cam. The -S suffix means a magnet is built in for CMSG, DMSG or EMSG switches.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X400S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X400S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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-SAUD32X400S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 32 | 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-SAUD32X400S Is Used
Excavator Panel Pusher
Drives a synchronized twin-arm mechanism to position cab panels, using equal push and pull force to prevent twisting during assembly.
Loader Pin Feeder
Uses the back rod to trip a limit switch, confirming pin insertion on heavy-equipment lines without adding external proximity sensors.
Crusher Tool Synchronizer
Carries two opposing cutting tools on a single piston for balanced material removal in construction machinery fabrication.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X400S the Right Cylinder?
Choose this 32 mm bore when you need 345 N of equal force in both directions. If you need less force, step down is not an option below 32 mm in this series. If you need more, the 40 mm bore provides 528 N each way at 0.5 MPa. A double rod is the right call for anti-rotation guidance, twin tooling or back-end sensing. Mounting is limited to Basic, FA flange and LB foot, matching the AirTAC SC series. At 400 mm stroke, use external guides to prevent rod bending under side loads. Viton H seals raise the temperature limit to 150 C.
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-SAUD32X400S FAQ
This 32 mm bore cylinder has a 1/8" port and delivers equal force in both directions because it is a double-rod design. The output is 345 N at 0.5 MPa, 483 N at 0.7 MPa, and 621 N at 0.9 MPa. The B04- prefix simply denotes the construction-machinery dedicated variant, with no mechanical changes to the base SAUD32X400S specifications.
No, a plain double-rod cylinder drifts without live air. The adjustable 21 mm air cushions only decelerate the piston near stroke ends. For a held vertical load, you must install an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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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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