The 7-foot Symons Rock Crusher refers to a cone crusher with a 7-foot diameter crushing head, based on the Symons design. These crushers are widely used in the mining and aggregate industries for secondary and tertiary crushing of hard, abrasive materials.
Key Features of a 7-Foot Symons Cone Crusher:
1. Crushing Capacity – Handles medium to large feed sizes, producing fine to coarse aggregates.
2. Adjustable Settings – The closed-side setting (CSS) can be adjusted to control output size.
3. Heavy-Duty Construction – Built for high productivity in tough applications (e.g., granite, basalt, iron ore).
4. Spring or Hydraulic Release – Older models use spring-based overload protection, while newer versions may have hydraulic systems.
5. Symons/Nordberg Legacy – Originally developed by Symons (later acquired by Nordberg and then Metso).
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Common Models:
– Symons 7’ Standard – Coarser crushing.
– Symons 7’ Short Head – Finer crushing for tertiary applications.
Replacement & Modern Alternatives:
– Many older Symons crushers have been replaced by modern equivalents like:
– Metso Nordberg HP Series (Hydraulic Cone Crushers)
– Sandvik CH & CS Series
– Terex Cedarapids MVP Series
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Applications:
– Mining (copper, gold, iron ore)
– Aggregate production (road base, concrete aggregates)
– Quarry operations
Would you like details on maintenance, spare parts, or where to find used models? Let me know how I can assist further!