Comparison: same 500 N class, different replacement levels
| Model | Thrust / stroke | Ex / duty evidence | Interchangeability |
|---|---|---|---|
| Ed50/6.Ex | 500 N / 60 mm | Ed-series Ex declaration; certificate must be verified. | Target model; order-specific. |
| BEd50/6 | 500 N / 60 mm | Separate "BEd" supplier system; some Ex dⅠ claims. | Same size is only the starting point-check motor, mounting and Ex files. |
| Ed50/6 (non-Ex) | 500 N / 60 mm | Non-hazardous version; typical 2000 c/h literature. | Cannot replace a certified Ex unit in a hazardous area. |
| BYT1-45Z/6 | 450 N / 60 mm | Legacy-style thruster; Ex d I Mb claims. | Different motor concept, 50 N lower thrust and certification-do not treat as equivalent. |
Application scope
Where the project certificate permits: coal handling, petrochemical, paint/coating, grain and other gas/dust hazard areas; brake release for drum/disc safety brakes; valves, gates, dampers, clamps and swing devices (<90°). Typical brake partners include YWZ5-250/50, BYWZ5, YWZP and DYW Ed-compatible families-but "mechanically compatible" does not mean "the complete brake is certified for the same zone".
Why buyers shortlist Ed50/6.Ex
500 N / 60 mm class
Common thruster size for mid-range Ed-compatible brake assemblies.
Compact electro-hydraulic unit
Motor, centrifugal pump and cylinder are integrated in one enclosure.
Power-off return
Spring returns the piston when de-energised; design must preserve fail-safe logic.
Flexible mounting
Balanced cylinder design supports orientation per the approved installation drawing.
Ed interface family
Commonly paired with Ed-compatible drum/disc brake architectures.
Quote-grade traceability
Model, certificate, nameplate, drawings and test report are locked before shipment.
