Descripción

The CH660 cone crusher is the 315 kW single cylinder model in the Sandvik range. It fits pebble and high-reduction tertiary duty in aggregate and metal mining plants. The machine takes feed up to 321 mm and runs a closed side setting from 10 a 51 milímetros. SUNWE supplies this machine class, the single cylinder alternatives, and the replacement parts that keep it running. We confirm every order against your model and serial number.

Pebble and High-Reduction Duty on the CH660

The CH660 cone crusher carries the former model name H6800. It shares the Hydroset system used across the Sandvik single cylinder family. Hydraulic pressure sets the gap and releases tramp iron, so the operator can adjust the machine without stopping the plant. That matters in a pebble circuit, where the recirculating load moves through the day.

Pebble crushing asks for a tight setting and a steady power draw. El 315 kW motor gives the CH660 the headroom to hold that setting under a heavy circulating load. The wide CSS range also lets the same machine move from tertiary duty to pebble duty as the circuit changes. A plant that runs both duties can keep one spare liner set instead of two.

The eccentric throw ranges from 18 a 50 milímetros. A longer throw moves more rock per cycle and tends to lift throughput. A shorter throw tightens the product and lowers the tonnage. The right throw follows the screen cut and the circulating load, not the highest number in the table.

Chamber and Throw Selection for the CH660 Cone Crusher

The CH660 cone crusher offers eight standard chambers, from extra coarse to extra fine. Each chamber sets the feed opening and the product shape. A coarse chamber takes a larger feed and returns more tonnage. By contrast, a fine chamber closes the product down and raises the reduction ratio. The table below maps the family to the usual duty.

Chamber choice and throw choice work together. A coarse chamber with a long throw gives the highest tonnage. A fine chamber with a short throw gives the tightest product. Most pebble circuits sit between those two points, so the selection starts with the screen aperture and the recirculating load.

Run a power draw check after any chamber or throw change. A rise in power points to a choked chamber or a harder ore blend. A fall points to a feed gap or a drive slip. Log the reading against the tonnage, and the next change becomes a measured decision rather than a guess.

Circuit Layout Around a CH660 Cone Crusher

Feed control decides how well the CH660 cone crusher performs. The material should enter the chamber near the center line and stay inside the feed opening. For example, a pre-screen that removes fines keeps the chamber from packing. A metal detector ahead of the feed protects the mantle and the concave from tramp steel.

The discharge side needs the same attention. The conveyor and the screen must carry the peak circulating load, not the average. In a pebble circuit, that load can climb well above the fresh feed rate. An undersized conveyor turns a good crusher into a bottleneck.

Automation is optional on the CH660 cone crusher. The ACS-c 5 ASRi package adds automated setting regulation and role-based access. Plants that run several products can store settings and recall them at a changeover. If you prefer a simpler panel, the Hydroset controls still handle setting and overload release.

Replacement Parts Coverage for the CH660 Cone Crusher

The CH660 cone crusher wears in a known order. The mantle and the concave take the first hit. Behind them, the eccentric bushing, the countershaft bushing, and the gear set carry the load. Inside the hydraulic circuit, the Hydroset assembly, the pump, and the seals do the protecting. However, a weak pump turns a liner job into a rebuild.