BC690
YZH
Product Description
In most crushing circuits, a small “trouble zone” around the primary intake dictates how often the plant stops: this is where boulders bridge, slabs hang, and frozen ore refuses to move. The stationary hydraulic rockbreaker boom is installed so its working envelope fully covers that zone, enabling controlled breaking, nudging, and raking without moving mobile equipment into confined, hazardous spaces.
Instead of treating blockages as exceptional incidents, operators use the boom as a permanent part of the flowsheet, clearing oversize in seconds or minutes and returning the system to steady-state operation.
Oversize rock that standard equipment cannot handle
Variations in blasting, geology, or weather conditions create blocks too large or too awkwardly shaped for the crusher or grizzly spacing.
The rockbreaker boom allows the operator to selectively break these pieces until they match the required feed envelope, all without shutting down for manual work in the hopper.
Safety and compliance pressure on manual clearing methods
Crowbars, jackhammers, or excavators over open hoppers expose workers to rockfall, flyrock, slips, and entrapment hazards that modern safety standards increasingly reject.
With the stationary boom, rockbreaking is executed from a protected cabin or via radio remote, making “no entry into the danger zone” a realistic rule rather than a slogan.
Productivity loss from irregular feed and repeated starts
Frequent choke events lead to erratic feed, high recirculating loads, and extra stress on mechanical and electrical systems.
By clearing blockages early and smoothing material flow, the boom helps the crusher work closer to its design capacity and reduces stop–start penalties.
A stationary hydraulic rockbreaker boom system is more than a breaker on a stick; each part is configured to work as a single station:
Boom and pedestal structure
The boom is mounted on a rigid pedestal or support frame anchored to concrete or heavy steelwork near the crusher or grizzly.
Wide boom cross sections, large-diameter pins, and high-tensile steel plates are used to cope with repetitive high-load cycles and side loading during levering and raking.
Hydraulic rockbreaker (hammer)
The hammer is selected for impact energy, blow frequency, and tool size based on rock hardness, lump size, and expected breaking time per event.
Tool options and mounting hardware are chosen so the operator can strike effectively while minimizing risk to the crusher shell, grizzly rails, or surrounding structure.
Electric-hydraulic power pack
A standalone hydraulic power unit, driven by an electric motor, supplies controlled flow and pressure to all boom and hammer functions.
Cooling, filtration, and monitoring of oil condition (temperature, contamination, pressure) support long-term reliability in dusty, high-duty applications.
Operator controls and interface
Joystick-based local control stations or radio remote units provide proportional control for smooth, accurate boom movement and hammer actuation.
The system can be integrated with plant control (PLC/DCS) for interlocks, permissives, and safety circuits, ensuring the boom operates within defined process and safety rules.
Different stationary hydraulic rockbreaker boom models within the YZH range offer varying reach, vertical coverage, and slewing angles, allowing the product page model to be matched exactly to typical jaw, gyratory, or grizzly layouts.
The stationary hydraulic rockbreaker boom concept is applicable wherever a fixed point of oversize control is needed:
Mounted beside or above primary jaw and gyratory crushers handling run-of-mine ore in metals and aggregates.
Installed over heavy-duty grizzly decks where long or flat rocks regularly lock across apertures and need fast breaking and raking.
Located at transfer chutes, ore passes, or bin inlets that occasionally plug with large lumps or tramp metal that mobile machines cannot safely reach.
Each location uses the same underlying boom-and-hammer technology, but with different geometry, mounting height, and slewing requirements.
Although the product is described as a “stationary hydraulic rockbreaker boom,” the actual delivered system is tailored to each plant:
Application specialists review crusher type, opening size, feed arrangement, and existing structures to define the working envelope the boom must cover.
This includes key points such as the center of the crusher throat, grizzly bar span, and typical hang-up locations.
A suitable boom series and hammer size are then selected to meet both reach and breaking capacity requirements, avoiding under- or over-sizing of the system.
Mounting details, power supply, and control interfaces are specified so installation can be carried out efficiently and in compliance with local standards.
For sites moving toward higher automation, the same boom can be paired later with video systems and advanced remote operation to create a semi-autonomous oversize management station.
Purpose-built for stationary duty with robust structures and components intended for millions of rockbreaking cycles.
Directly addresses the most common root cause of downtime at the primary crusher: uncontrolled oversize and bridging.
Backed by a specialist manufacturer of pedestal and stationary boom systems, offering a full range of solutions and long-term support for different crusher sizes and plant layouts.
If your primary crusher or grizzly is still stopped regularly by oversize rock and manual clearing, a stationary hydraulic rockbreaker boom can convert that vulnerable area into a controlled, engineered station.
Share your crusher or grizzly drawings, feed opening dimensions, and typical oversize characteristics, and YZH will propose a stationary hydraulic rockbreaker boom configuration that fits your layout and production targets while keeping people out of harm’s way.
