
The AirTAC B04-SC Construction Machinery Special Standard Cylinder B04-SC50X200S is a genuine double-acting standard air cylinder with a Ø50mm bore and 200mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The B04-SC50X200S is an AirTAC double-acting tie-rod pneumatic cylinder engineered for construction machinery. The B04- prefix designates this as a construction-machinery dedicated variant of the standard SC50X200S, meaning it shares the exact same physical specifications, 20mm rod diameter, and 150mm body length A.
Delivering a robust 982 N of push force at 0.5 MPa (and up to 1767 N at 0.9 MPa), this 50mm bore unit is built for heavy-equipment builders. The S suffix indicates a built-in piston magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the cylinder barrel for precise end-of-stroke position detection in rugged environments.
| Model | Airtac B04-SC Construction Machinery Special Standard Cylinder B04-SC50X200S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 200 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. |
| ×200 | 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.
Drives secondary attachments and covers on heavy excavators, utilizing the built-in magnet to confirm open/closed positions in dusty environments.
Provides 1374 N of push force at 0.7 MPa to reliably open and close heavy material discharge gates on batching equipment.
Secures and releases heavy latches on tractor or loader hoods and panels, relying on adjustable cushions to soften impact at stroke end.
This 50mm bore provides 982 N push at 0.5 MPa. If your application requires less force, stepping down to a 40mm bore yields 628 N, while moving up to a 63mm bore provides 1559 N. For replacements, match the 50mm bore, 200mm stroke, PT1/4 port thread, basic mounting, and the -S magnet option exactly.
With a 200mm stroke, the unsupported 20mm rod can experience bending under heavy side loads. To prevent premature rod-bearing wear, use an external guide rail or consider a guided cylinder if the load is not perfectly axial.
Quick checklist
The B04- prefix marks this as AirTAC's construction-machinery dedicated line. It is mechanically and dimensionally identical to the standard SC50X200S, featuring a 50mm bore, 200mm stroke, and built-in magnet, simply designated for heavy-equipment builders.
At 0.5 MPa, it provides 982 N of push force and 825 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force reaches 1767 N.
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