BB430
YZH
Product Description
Conventional breaker booms with limited swing can leave blind spots where oversize accumulates on grizzlies, in rockboxes or around crusher inlets. YZH high‑power rock breaker systems with 170° rotation are configured so the boom can sweep a broad arc, allowing operators to reach multiple blockage points, break large rocks and rake material along the feed area without repositioning equipment.
The high‑power hammer and optimized boom geometry make these systems suitable for very hard stone and heavy-duty primary applications where continuous production is essential.
Oversize scattered across a wide feed zone
In large primary stations, oversize may not accumulate in a single spot but appear at different places along the grizzly or rockbox.
With 170° swing, the boom can pivot from one side of the feed area to the other, breaking and raking oversize wherever it appears, instead of relying on multiple machines or manual work.
Very hard or large rock needing high impact energy
Some deposits produce very hard or massive blocks that require strong hammer energy and robust boom sections to break efficiently.
YZH high‑power systems are matched with large hydraulic hammers and massive boom cross sections, providing the strength needed for continuous heavy breaking duty.
Safety risks and maintenance issues from limited‑reach solutions
If a boom cannot rotate far enough, operators may try unsafe work‑arounds or bring excavators into tight areas to reach missed spots.
A 170° rotation pedestal system reduces the need for improvised methods, lowering risk and concentrating breaking work in a single, well‑engineered station.
YZH high‑power 170° rotation systems share the standard four‑part rockbreaker architecture with enhancements for reach and strength:
Pedestal and rotating upper structure
A fixed base or pedestal is anchored to concrete or steel, supporting a rotating upper frame that provides approximately 170° of swing around the installation point.
This rotation range is chosen to maximize coverage of crushers, grizzlies and rockboxes while keeping the structure compact and robust for heavy hammers.
Heavy‑duty boom and arm
Long‑reach booms, such as XL‑type designs, use large-section, reinforced structures with aluminum‑bronze bushings and oversized pivot pins for fatigue resistance in high‑shock applications.
Nominal horizontal and vertical reach values (e.g., around 9.8 m horizontal and 9.2 m vertical for some XL booms) allow access to deep crusher cavities and high rock piles from a single base position.
High‑power hydraulic breaker
Large series breakers (e.g., compatible with chisel diameters up to around 175 mm on XL booms) provide the impact needed for very hard and abrasive rock in high‑production environments.
The hammer is selected and mounted to balance breaking power with boom and pedestal load limits, ensuring long-term structural reliability.
Electric‑hydraulic power pack and controls
Dedicated electric power packs (e.g., HA55, HA75 ranges) supply oil flow and pressure to the boom and breaker, with cooling and filtration sized for continuous duty.
Joystick-based control systems, often with options like anti‑lunge and anti‑blank‑fire, give operators precise control over movement and impact, and can be integrated with radio remote options where required.
These systems are particularly suited to:
Large stationary cone and gyratory crushers where long reach and powerful breaking are needed to manage vaults and cave‑ins.
Wide grizzly screens and rockboxes in mines and quarries where oversize may appear anywhere across the deck and must be broken and raked along its length.
Fixed loading points and transfer chutes where multiple blockage locations can be covered from one central pedestal thanks to the 170° swing.
The combination of high hammer energy, long reach and wide rotation makes these systems especially valuable on high‑capacity lines where downtime is very expensive.
Although marketed as “high‑power rock breaker systems of 170° rotation,” each installation is customized:
Engineers review crusher or grizzly layout, feed zone width, rock characteristics and required duty to choose a boom size, hammer model and pedestal location that use the 170° swing effectively.
Coverage drawings confirm that all critical hang‑up and oversize areas fall within the boom’s horizontal and vertical envelope and that maintenance positions are accessible.
Power, control and structural interfaces are defined to match site standards, including integration with existing plant safety and automation systems.
If oversize is appearing across a wide area in front of your crusher or grizzly and current tools cannot reach or break it efficiently, a YZH high‑power rock breaker system with 170° rotation can provide the wide‑arc, high‑energy coverage you need.
Share your crusher or grizzly layout, feed zone dimensions, rock properties and production targets, and YZH will configure a 170° rotation rock breaker system tailored to your site’s safety and uptime requirements.
