Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X25S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X25S is a genuine double-acting profile-type standard air cylinder with a Ø63mm bore and 25mm 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.
- BoreØ63 mm
- Stroke25 mm
- Port size3/8"
- 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-SAUD63X25S
The B04-SAUD63X25S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks it as the construction-machinery dedicated variant of the base SAUD63X25S, sharing identical mechanics. A rod exits both ends on one piston, making push and pull force equal at 1402 N each way at 0.5 MPa. The extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore.
This 63 mm bore unit uses a 3/8 inch port and M16x1.5 rod thread. With the -S magnet, it supports CMSG, DMSG, or EMSG switches. The twin-rod design resists torsion and lets the back rod carry a sensor cam.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X25S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X25S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | — |
| Max (@1.0 MPa) | 286 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-SAUD63X25S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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-SAUD63X25S Is Used
Excavator Valve Bank
Drives a synchronized pilot valve alignment on heavy equipment where equal push and pull force prevents linkage binding.
Crusher Tooling
Twin-tool actuation on a mobile rock crusher, using the dual rods to maintain parallel jaw tracking under harsh conditions.
Loader Cam Trip
Uses the protruding back rod to mechanically trip a limit switch, confirming deck positioning on wheel loader attachments.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X25S the Right Cylinder?
Choose this 63 mm bore when your application demands equal force in both directions, needing 1402 N at 0.5 MPa. If you need less force, the 50 mm bore delivers 825 N both ways. For heavier drives, the 80 mm bore provides 2268 N. A double rod is the right call for anti-rotation guidance, twin-tool driving, or back-end sensing. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. The -S option enables position sensing. At 25 mm stroke side-load is minimal, but for any stroke over 300 mm add external guide rails.
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-SAUD63X25S FAQ
The B04- prefix denotes the construction-machinery dedicated variant of the SAUD63X25S, mechanically identical to the base model. Force is equal both ways because both faces lose rod area: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. It uses a 3/8 inch port.
No, a plain double-rod cylinder drifts on air loss or when the valve is centered. The adjustable air cushion only decelerates the piston near stroke end. To hold a load securely, fit an external rod lock or a 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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