Cone Crusher Specifications
The figures below describe typical industry specifications for this class of equipment rather than a single fixed model. Use them to scope a requirement, then confirm exact figures against the supplied unit before purchase.
| Specification | Typical value |
|---|---|
| Common head diameters | 2–5 ft (600–1,500 mm) for small to mid plants |
| Feed size | Typically ≤80% of the feed opening, 50–200 mm |
| Closed side setting (CSS) | 6–40 mm depending on duty |
| Throughput | 20–300 t/h by size and CSS |
| Reduction ratio | 3:1 to 6:1 |
| Motor power | 30–250 kW |
| Liner material | Manganese steel mantle and concave |
| Protection | Hydraulic tramp-release and overload |
| Crushing chamber | Fine, medium or coarse profile |
| Circuit | Open or closed with a vibrating screen |
What a Cone Crusher Is Used For
- Secondary crushing after a jaw crusher
- Tertiary crushing for mill feed or aggregate
- Quarry production of roadstone
- Closed-circuit crushing with screens
Maintenance Schedule
Most premature failures in this equipment class trace back to a missed routine check rather than a design fault. The intervals below are a practical starting schedule; adjust them to your duty cycle and the manufacturer manual.
| Interval | Task |
|---|---|
| Every shift | Listen for ringing (empty) or bogging; check CSS; inspect for tramp metal in the feed. |
| Weekly | Measure liner wear; check hydraulic oil and accumulator pre-charge. |
| Monthly | Pinion and eccentric lubrication; inspect dust seals. |
| Quarterly | Mainshaft and eccentric wear; motor and drive alignment. |
| On liner life | Replace mantle and concave as a pair. Mixing a new mantle with a worn concave destroys the crushing chamber geometry. |
Frequently Asked Questions
When do I need a cone crusher as well as a jaw?
When mill feed must be finer than about 40 mm, or when you are making aggregate. A jaw at a tight CSS loses capacity and wears fast. The economic split is jaw for primary, cone for secondary. Small gravity plants feeding a wet pan mill sometimes skip the cone; CIL and ball-mill circuits almost never should.
What is CSS on a cone crusher?
Closed side setting: the smallest gap between mantle and concave at the bottom of the chamber. It is the main product-size control. Tightening CSS makes finer product, lower throughput and faster liner wear. Set it from the screen or mill’s required feed, not from habit.
Why must liners be replaced as a pair?
Because the crushing chamber is a designed shape, not two independent wear parts. A new mantle in a worn concave (or the reverse) changes the nip angle, cuts capacity and can pack the chamber. Replace both, and keep a spare set on a Geita-class abrasive ore.
Supply and Delivery Across Tanzania
Bart Mining supplies cone crusher and related equipment to mining operations throughout Tanzania, with primary coverage of the Lake Victoria Goldfields (Mwanza, Kahama, Geita, Shinyanga and Bukombe), alongside the Lupa Goldfields around Chunya and Mbeya, and delivery nationwide from Dar es Salaam.
Commonly supplied to: Geita.
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