BD670
YZH
Product Description
In a primary crushing station, two areas require frequent attention: the crusher mouth, where oversize lodges or bridges, and the hopper or rockbox, where material can build up unevenly. The fixed hydraulic boom is installed so its working envelope spans both areas, giving operators a single tool to break obstructions in the crusher and reshape the rock bed in front of it.
Rather than moving mobile equipment into tight spaces or sending personnel with handheld tools, the fixed boom becomes the “built‑in arm” of the plant, always ready to handle difficult pieces and maintain a stable feed profile.
Clearing and preventing crusher blockages
Oversized boulders, slabby pieces, or frozen material can wedge in the crusher opening and stop the machine, particularly during periods of variable fragmentation.
The fixed hydraulic boom enables operators to strike and dislodge these pieces directly in the crusher cavity, restoring movement without dismantling guards or entering the chamber.
Managing material shape and level in the hopper
Irregular loading can lead to rat-holing, uneven wear, and inconsistent feed to the crusher.
With a suitable tool fitted on the boom-mounted breaker or attachment point, the operator can pull down arches, level the pile, and guide material toward the feeder.
Reducing manual intervention and mobile machine exposure
Traditional clearing methods involve bringing excavators close to the edge or sending personnel under suspended rock, which raises risk and complicates compliance.
A fixed, remote-operated boom keeps people away from the drop zone and reduces reliance on mobile machines for tasks they are not optimized to perform.
A YZH fixed hydraulic boom package integrates several key components into a single station:
Fixed pedestal and boom structure
The pedestal is anchored to concrete or structural steel and supports the rotating upper frame or console plus the lift boom and arm.
Boom sections are designed with high-tensile steel, large pin diameters, and reinforced joints to handle the bending and torsional loads of rockbreaking and raking in a static installation.
Hydraulic circuit and drive
An electric motor drives a hydraulic power unit that feeds cylinders and, when installed with a breaker, the hammer’s hydraulic requirements.
Flow and pressure are matched to the boom motions and attached tools, ensuring precise positioning and sufficient power at the working end.
Control system and remote operation
Operators control the boom from a nearby station or via radio remote, using proportional functions for smooth, accurate movements near critical equipment.
Control options make it possible to integrate boom operation with plant safety interlocks and to implement “no-entry” procedures during use.
While some YZH fixed hydraulic booms are paired with dedicated breakers (as in WHA fixed rockbreaker models), the Fixed Hydraulic Boom product can be configured either primarily for rockbreaking or for material manipulation, depending on site requirements.
Fixed hydraulic booms are most often installed in:
Primary jaw crusher stations where a single mounting point can cover both the crusher mouth and the feed hopper.
Quarry and aggregate plants with rockboxes or hoppers that frequently see build-ups or hang-ups requiring controlled manipulation.
Mines where high benches or tight underground stations limit access for mobile equipment, making a permanent boom arm more practical.
Their static nature and tailored reach make them ideal where the plant configuration is permanent and the problem areas are well known.
Although labeled as a “Fixed Hydraulic Boom,” the delivered system is engineered to fit each site:
Engineers evaluate crusher and hopper drawings, desired reach, and available mounting areas to determine boom length, pedestal height, and slew range.
Hydraulic power and control options are sized to the expected duty cycle, ambient conditions, and operator preferences (local console vs. remote, integration with plant controls, etc.).
Optional features—such as dust protection, low-temperature packages, or pairing with a specific hydraulic breaker series—can be added to meet unique environmental or productivity requirements.
Specifically developed for mining and quarrying applications, rather than adapted from general lifting or crane technology.
Electric drive, robust boom construction, and engineered mounting provide a long-life, low-operating-cost alternative to using mobile machines for repetitive clearing work.
Backed by YZH’s experience in fixed rockbreaker and pedestal boom systems, allowing the fixed hydraulic boom to be integrated with rockbreaking packages or other solutions across the site.
If your crusher and hopper still rely on manual clearing or mobile equipment for access, a fixed hydraulic boom can become the permanent “third hand” of your primary station, dedicated to keeping material moving.
Share your crusher and hopper layout, problem areas, and target throughput, and YZH will configure a fixed hydraulic boom solution that gives you safe, reliable access exactly where your operation needs it most.
