Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X700S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X700S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 700mm 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
- Stroke700 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-SAUD50X700S
The B04-SAUD50X700S is an AirTAC double-acting double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD50X700S, sharing identical mechanical specifications. Because a rod exits both ends, the output force is equal in both directions at 825 N each way at 0.5 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same 50mm bore. It features a 1/4 inch port and an M16x1.5 rod thread.
This unit includes a piston magnet (-S) for CMSG, DMSG, or EMSG switches. For high-temperature environments, a Viton H seal option extends operation to 150 C. Mounting is compatible with AirTAC SC series FA and LB brackets.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X700S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X700S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 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-SAUD50X700S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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-SAUD50X700S Is Used
Excavator Panel Pusher
Applies equal push and pull force to position cab panels on heavy equipment without twist.
Twin-Tool Actuator
Drives two synchronized assembly tools from one piston for compact machinery layouts.
Back-Rod Sensing
Uses the protruding rear rod to trip a CMSG switch in tight construction equipment bays.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X700S the Right Cylinder?
Select this 50mm bore when you need 825 N of equal bidirectional force at 0.5 MPa. For lower force requirements, the 40mm bore provides 528 N both ways. If your application needs more power, step up to the 63mm bore which outputs 1402 N each way. The double-rod design is ideal for anti-rotation guidance, driving twin tooling, or mounting a sensor cam on the back rod. You can use FA or LB mounts with the AirTAC SC series. Because this cylinder has a 700mm stroke, external guides are strongly recommended to prevent rod bending and manage side loads. The -S magnet enables 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-SAUD50X700S FAQ
The force is equal both ways because it is a double-rod cylinder. It outputs 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa in both extend and retract directions. It uses a 1/4 inch port.
The B04- prefix designates this as a construction-machinery dedicated variant of the SAUD50X700S, with no mechanical changes to the specs. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG position switches. Note that a plain cylinder does not hold load on air loss; use an external rod lock for holding.
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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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