Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X450S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X450S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 450mm 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.
- BoreØ40 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- 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-SAUD40X450S
The B04-SAUD40X450S is a double-acting, double-rod profile cylinder. The B04- prefix marks this as AirTAC's construction-machinery dedicated variant of the SAUD40X450S, sharing the exact same physical specs. Because a rod exits both ends, the push and pull forces are equal at 528 N each way at 0.5 MPa. The extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same bore. This unit includes a piston magnet (-S) for CMSG, DMSG, or EMSG switches.
The 1/4 inch port and 16 mm rod keep flow and strength balanced. A high-temperature Viton H seal option extends operation from 0 to 150 C. The 21 mm adjustable air cushions at both ends decelerate the piston near stroke end, but do not lock the load on air loss.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X450S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X450S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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-SAUD40X450S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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-SAUD40X450S Is Used
Excavator Panel Pusher
Drives cab interior panels on heavy equipment with equal push and pull force, preventing twist during synchronized placement.
Loader Arm Tool Sync
Carries twin tooling on both rod ends for construction machinery attachments, ensuring parallel actuation without rotation.
Back-End Position Sensing
Uses the protruding rear rod to trip a CMSG or DMSG switch, confirming stroke completion in tight machinery bays.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X450S the Right Cylinder?
When sizing this 40 mm bore against its neighbors, the 32 mm bore provides 345 N both ways, while the 63 mm bore offers 1402 N both ways at 0.5 MPa. Choose this double-rod model when your application demands anti-rotation guidance, synchronized twin-tool driving, or rear-rod switch tripping. Mounting is limited to Basic, FA, and LB styles, matching the AirTAC SC series. Because the stroke is 450 mm, external guides are recommended to prevent rod bending under side loads. For load holding without live air, add an external rod lock or pilot-operated check valve, as the cushion only decelerates.
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-SAUD40X450S FAQ
The force is equal in both directions because the 16 mm rod exits both ends. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4 inch port supplies air to both chambers.
The B04- prefix designates this as a construction-machinery dedicated variant of the SAUD40X450S, mechanically identical to the base model. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG electronic or reed switches.
Authorized Export Seller
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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