BB600
YZH
Product Description
In underground mining, crusher stations and grizzly openings are key bottlenecks: oversize and bridging here can stop hoisting and tramming, while confined spaces make manual clearing extremely hazardous. The B Series stationary rockbreaker is installed on a fixed pedestal near these points so operators can swing, lift and extend the boom into the feed area, break large rocks and rake material until ore flows again, all while staying in a safe position.
Because the system is stationary and electric‑hydraulic, it is well suited to low‑profile underground headings where diesel exhaust, limited headroom and tight access rule out many mobile solutions.
From the product description and related YZH pages, B Series underground systems include:
170° working rotation
Provides a wide working envelope ideal for stationary underground applications where side‑to‑side coverage is critical but space to relocate equipment is limited.
Heavy‑duty construction
Fabricated with high‑strength steel, reinforced welds and wear‑resistant bushings, the system is built for long‑term reliability under extreme underground conditions.
Smooth hydraulic operation
A high‑efficiency hydraulic system ensures consistent, responsive boom and hammer movement, allowing precise work even in confined or obstructed spaces.
Operator‑friendly controls
Proportional joystick controls support smooth, accurate maneuvering of the boom and breaker, with options for local or remote operation depending on the mine’s safety philosophy.
Compact footprint with high reach
The system is designed to be space‑efficient while delivering ample reach and breaking power, fitting into underground stations without major excavation.
Safety‑enhanced design
Features such as dual safety valves, emergency stop functions and pressure relief mechanisms help protect both the operator and the equipment.
According to the B Series description and underground rockbreaker system guidance, these systems are used in:
Primary crusher blockage clearance
Breaking large boulders obstructing the feed area of underground jaw or gyratory crushers to keep ore moving.
Grizzly feeder and ore pass maintenance
Dislodging material stuck on bar grizzlies or at ore pass inlets and reducing oversized rocks from a safe distance, instead of using manual bars.
Stationary rock breaking in limited‑mobility areas
Ideal where underground mobility is constrained but high breaking efficiency is required, such as static crushing stations or fixed ore bins.
The B Series stationary rockbreaker system is offered with the following typical specification ranges:
Boom reach: approx. 3,000–10,000 mm (customizable to station layout).
Rotation: about 170° via hydraulic rotary actuator.
Breaker weight capacity: up to roughly 2,000 kg.
Hydraulic pressure: up to around 20–25 MPa.
Flow requirement: about 90–130 L/min.
Power supply: approx. 37–55 kW electric motor, depending on model.
These ranges allow the system to be tailored to different underground crusher and grizzly configurations while preserving robust performance.
The documented benefits of YZH B Series stationary rockbreaker systems include:
Improved crusher throughput and reduced downtime by breaking oversize before it causes extended stoppages.
Reduced manual rock handling, improving site safety, especially in drawpoint and crusher areas.
Lower maintenance needs due to durable design and high‑quality hydraulic components.
Increased operational efficiency thanks to wide coverage from a fixed position and reliable, repeatable breaking performance.
If underground crushers, grizzlies or ore passes in your mine are still frequently blocked by oversize and cleared manually, a YZH B Series stationary rockbreaker system can turn those locations into engineered, remote‑operated breaking stations.
Share your underground layout, crusher or grizzly dimensions, ore characteristics and production targets, and YZH will configure a B Series solution—such as the BB600—with the reach, breaker capacity and hydraulics matched to your environment.
