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A hydraulic hammer is an attachment used for breaking concrete or rocks and digging especially when mounted to an excavator. It extracts energy from a machine's hydraulic system and uses it to pound a hammer against a driven moil to break the ground. The following are the types of hydraulic hammers:
Fully Automatic Hydraulic Hammer:
A fully automatic hydraulic hammer works automatically without any operator input during the firing or resetting cycle. They have an automatic clutch and brake system for better control, and they are generally lighter and with less recoil compared to other types of hydraulic hammers.
Semi Automatic Hydraulic Hammer:
This type of hydraulic hammer requires some operator input during the hammering and resetting cycles. One has to pull the hammer back for resetting and let it go for hammering. It also has an automatic clutch system.
H-Series Rotating Hammer:
This type of hydraulic hammer has a rotating feature to provide a driving direction better. They are more ideal for penetrating rocky grounds and uneven surfaces because they can adjust their strikes on the ground at varying angles. This improves productivity and enhances the even distribution of force. They also allow for easier access to confined spaces and avoid damaging the surrounding area. The hammer works by driving a drill bit into the rock which makes it expand and crack from within.
Directive Hammer:
It is the most common type of hydraulic hammer. A direct drive hydraulic hammer delivers a force directly to a chisel or pile through an internal piston. The internal piston is driven by pressurized oil from a hydraulic power unit, causing it to move rapidly within a cylinder, striking the chisel or pile, and driving them into the ground. Direct-driven hydraulic hammers are widely used in construction and geological engineering, infrastructure projects, water conservancy and environmental protection projects.
Single-Blow Hammer:
Single-blow hammers strike only once per cycle and they are typically air-powered or hydraulically powered. They offer fast operation and high energy and are ideal for precision work such as forging, closing dies, and bending operations. Additionally, they can be used to strike objects or shape materials with speed and precision.
Excavator compatibility
Hammers are made for excavators that have a certain size. It needs to match the excavator well so that it can do its job right.
Weight class
Hammers come in different weights. The weight needs to be suitable for the job. A heavier hammer breaks things better, while a lighter one offers more control.
Power and energy
The hammer's impact energy is measured in joules. Higher joules mean it is more powerful for breaking tougher materials.
Operating hydraulic pressure
The hammer needs a certain level of hydraulic pressure to work well. This is usually between 1000 to 2000 psi.
Flow rate
The flow rate for hydraulics is measured in gallons per minute (GPM). Hammers typically need between 10 to 40 GPM, depending on the model.
Mounting style
The way a hydraulic hammer is mounted to the excavator is important for stability during operation. Common mounting types include pin-style and quick coupler mounts.
Regular maintenance is essential to keeping hydraulic hammers in good condition. Check the following components often and fix or replace them as needed.
Hammer tool bits
Inspect the chisel and wedge ends for signs of excessive wear, cracks, or damage. Rotate or replace the tooling as necessary to promote even wear. Always keep the tool bits properly lubricated.
Grease system
Confirm the automatic grease pump is dispensing grease like it should. Check for any blockages, leaks, or issues with the lines. Manually lubricate any hammer parts if needed. During routine maintenance, be sure to replenish the grease reservoir.
Vibration dampers
Inspect the rubber shock absorbers used to dampen vibrations. Look for any tearing, damage, or excessive play. Replace these vibration dampers if they become worn to ensure proper hammer performance and excavator connection stability.
Hydraulic hoses and connectors
Check all hydraulic lines for any leaks or signs of abrasion. Ensure hose clamps securely grip the hoses. Inspect hydraulic couplers and quick-connects, cleaning and lubricating as needed. Rapid hydraulic connections should be disconnected and checked for wear regarding mechanical coupling systems after each use.
The main application of hydraulic hammers is to break concrete and rocks, but their applications are not limited to that. They have become an essential tool in the construction and mining industry, with numerous applications and scenarios, such as:
Breaking Structures
Hydraulic hammers are widely used to break down bridges, tunnels, and old buildings (for example, the demolition of tunnels).
Foundation Excavation
Hydraulic hammers support foundation excavation by breaking through rock layers and clearing the ground.
Quarrying
In the mining industry, hydraulic hammers are widely used to break large rocks into smaller exploitable stones.
Road Repair
Hydraulic hammers can help fix road pavement by removing damaged portions or repairing utility trenches.
Trench Digging
Hydraulic hammers facilitate trench digging by breaking through solid rock formations, providing easier access for excavation.
Installing Piles
Hydraulic hammers are used for pile driving, which involves hydropneumatic piles, construction supporting structures, and deep foundations.
Mining Operations
In the mining industry, hydraulic hammers are widely used to break large rocks into smaller exploitable stones.
Rock Scaling
In unstable rocky areas, hydraulic hammer drills can remove loose or protruding rocks, preventing potential hazards.
Hydraulic hammers are used to remove loose or unstable rocks to help stabilize slopes or rock faces.
Refinery Maintenance
Hydraulic hammers play a vital role in maintaining refineries by removing outdated equipment, valves, or cracking units.
Snow Removal
Hydraulic hammer snow removers are used to break and remove ice/snow from roadways, airport runways, and construction sites.
Demolition Submersible
Demolition hammer hydraulic are used to dismantle underwater structures, bridges, or oil rigs by coupling with submarines.
These heavy hammers can work at depths of about 1,000 meters and remove marine waste to protect maritime ecology.
The versatility of hydraulic hammers makes them invaluable in various construction and mining applications. Their ability to break through concrete, rocks, and other rigid materials quickly and efficiently facilitates many excavation, demolition, and construction tasks.
When selecting a hydraulic breaker hammer, buyers should consider several factors to ensure they get the device that best fits their requirements.
Application needs analysis
Initially, buyers' applications should be taken into account, including the kind of material, size, and weight, as well as the breaker hammer's intended use scenario, which could range from tackling large mining tasks to smaller urban demolition endeavors or from coastal construction sites to high-altitude mountaintops.
Excavator compatibility
Next, buyers should pay attention to its weight, mounting bracket, and hydraulic circuit, as they must ensure that the hydraulic breaker hammer coincides with their excavator in order for them to work together perfectly, and efficient collaboration relies on the compatibility among them.
Breaker power and size
Additionally, buyers should consider the hydraulic breaker hammer's power and size, which play a decisive role in the efficiency and impact energy of the breaker hammer.
Quality and reliability of the product
In addition, buyers should choose a breaker hammer with a proven quality and durability in the market, which can always have high performance, low downtime, and low maintenance costs.
Service and support network
Finally, buyers should also consider the seller's service and support network, as well as their customer support and spare parts supply, which are crucial to break hammer maintenance and operation.
Q1: What are the key components of a hydraulic hammer?
A1: The main components of a hydraulic hammer include the cylinder, piston, chisel or tool, mounting bracket, hydraulic system and recoil mechanism. The tool or chisel drills or breaks the surface material. The hydraulic system provides the force that drives the mechanism. The hammer may also have features for safety and to reduce vibration.
Q2: What types of materials can a hydraulic hammer effectively break?
A2: A hydraulic hammer is great for breaking very hard materials like rock, concrete and reinforced concrete. Different types of hammers have been made to effectively break different kinds of materials.
Q3: What are the advantages of using hydraulic hammers over pneumatic hammers?
A3: Hydraulic hammers have a much higher striking power than pneumatic hammers. This makes them more efficient, leading to a faster reduction in project costs. Also, hydraulic hammers have fewer moving parts. They are more durable and require less maintenance than pneumatic ones.
Q4: Can a hydraulic hammer be used in underwater or marine environments?
A4: Yes, a hydraulic hammer can be used underwater. However, this will depend on its design and construction. Only hammers made with corrosion-resistant materials and suitable sealing can be used in marine environments.
