
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X50S is a genuine double-acting standard air cylinder with a Ø50mm bore and 50mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The B04-SC50X50S is AirTAC's construction-machinery dedicated variant of the standard SC50X50S tie-rod cylinder. The B04- prefix designates it for heavy-equipment builders, but mechanically it is identical to the base SC model, offering a 50mm bore and 50mm stroke.
This double-acting pneumatic cylinder generates 982N of push force and 825N of pull force at 0.5 MPa. It includes a built-in magnet for position sensing and features a 20mm rod with 21mm adjustable cushions to absorb end-of-stroke impact.
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X50S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| 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 SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Actuates cab doors and access panels on excavators and loaders where a compact 50mm stroke and reliable magnetic sensing are required.
Provides 982N of clamping force at 0.5 MPa for securing workpieces or tooling components in construction machinery assembly lines.
Drives diverter valves and flow control handles in dusty, rugged environments using the standard TPU sealed cylinder body.
This 50mm bore provides 982N at 0.5 MPa. Step down to a 40mm bore (628N push) for lighter loads, or up to a 63mm bore (1559N push) for higher force. Because the stroke is only 50mm, rod-bearing bending is minimal, making it highly robust for compact construction machinery actuators.
When replacing this unit, match the 50mm bore, 50mm stroke, PT1/4 port thread, basic mounting style, and the built-in magnet (-S suffix). It is a genuine AirTAC component engineered for tough environments.
Quick checklist
The B04- prefix indicates this is AirTAC's construction-machinery dedicated variant of the SC50X50S. It is mechanically identical to the standard SC50X50S, offering the same 50mm bore, 50mm stroke, and magnetic piston.
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982N of push force and 825N of pull force. At its maximum 0.9 MPa operating pressure, it delivers 1767N of push force.
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