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Excavator Hydraulic Hammer – The Complete FAQ Guide
The hydraulic hammer FAQ Guide is a guide comprised of useful information on the hydraulic hammer.
This guide contains information about the hydraulic hammer, working principle, types of hydraulic hammer, cost, Hs code, specifications, weight, vibrational magnitude, Chisel, and much more.
Whether you are a professional or a newbie, this guide will help you attain familiarity with a hydraulic hammer.
1. What do you mean by the hydraulic hammer?
A hydraulic hammer is a tool used in construction or engineering that is operated via hydraulic power.
A hydraulic hammer is a tool that produces a powerful impact by the release of stored high-pressure fluid through a piston.
The energy released by the impact is much more than can be achieved by normal physical means and is used for various purposes.
You can operate a hydraulic hammer from inside the cabin of an excavator by utilizing a foot valve embedded below the driver seat.
A hydraulic hammer is attached to the one end of the arm of an excavator and is capable of moving forward or backward with the help of a bucket cylinder.
2. What is the working principle of a hydraulic hammer?
The working principle of the Hydraulic hammer is based on hydraulics.
The piston located within a hydraulic hammer is driven by oil under pressure.
A hydraulic hammer’s primary type of energy is the change in pressure over time, as created by breaking the fluid flow.
The hydraulic hammers use the energy created when fluid is restricted and then released.
In a hydraulic hammer, the piston is embedded with the piston rod that moves the piston back and forth.
The generated forces due to momentum are transferred to the workpiece and other objects, giving rise to kinetic energy delivered to produce an impact.
The workpiece, in this case, is Chisel, to which the high impact is delivered.
3. How can I use a hydraulic hammer?
You can use a hydraulic hammer by following specific operative precautions.
Following these precautions will increase the lifetime of your hydraulic hammer and your safety.
- While breaking the desired material, employ the excavator weight for additional strength to complete the intended function of breakage at ease.
- It is recommended to keep your hydraulic hammer at the right angle to the material’s surface being broken.
- When using a hydraulic hammer to break different materials, you must start working from the edge of the material and then slowly move to the middle.
- Bending of the hydraulic hammer is not recommended when you are performing the breakage operation.
- Turn off the hydraulic hammer before collapsing of material being broken.
- Avoid using a hydraulic hammer for moving large pieces of materials.
- Also, avoid operating a hydraulic hammer in a single position for more than a quarter minute.
4. What are the types of the hydraulic hammer?
There are three main types of the hydraulic hammer which are listed below for your reference:
- Small Class:
Small hydraulic power hammers are made to go faster.
They generally perform better on lighter jobs where you aren’t achieving consistent results.
Use these small hammers for small jobs around the house. For example, use them to dig fence posts and dig holes or remove concrete for small repairs.
- Medium Class:
Medium-sized hydraulic hammers are known for their affordable price and reliable performance.
In the medium hydraulic hammer, class psi lies in the range of 2000 to 3000.
Lightweight, compact, and powerful can be used for diverse projects ranging from landscaping rock and concrete to utility work.
- Large Class:
Large-size hammers are particularly powerful tools for large-scale projects such as excavation or mining.
They should only be used by people who have experience and supervision.
The hammer’s psi of 2300 pounds per square inch is the highest of any hydraulic nail gun.
It comes down lesser times than those with lower psi’s.
5. What is the Hs code of hydraulic hammers?
The Hs code is a System of Nomenclature, which is the set of rules that companies use to classify their products.
It’s a comprehensive, multi-lingual system used by traders and exporters alike to classify product data to ease record-keeping and international trade.
The Hs code for the hydraulic hammer is comprised of an 8-digit code that is used in the import and export of your hydraulic hammer.
It determines the quantity of the hydraulic hammer, price per unit, amount imported or exported, date and time on which is traded or transit carried out, etc.
The Hs code is also utilized in assessing the quantity of inventory that exists.
6. Can I repair my hydraulic hammer?
Yes, you can repair your hydraulic hammer. You can also extend the life of your hydraulic hammer by maintaining it.
If the problem or issue with your hydraulic hammer is small, you can repair your hydraulic hammer yourself.
But if the problem associated is massive, then the only thing you can do is get it repaired from a professional technician or the manufacturer from which you have purchased it.
Before making out a repair, check the warranty of your hydraulic hammer. It could help you save extra costs incorporated in repair with your hydraulic hammer.
If the hydraulic hammer is completely damaged, then it is recommended to replace your hydraulic hammer to prevent recurring costs utilized in frequent repairs.
7. What are the specifications of a hydraulic hammer?
There are several specifications of a hydraulic hammer. These specifications of hydraulic hammers vary from model to model.
Some of the general specifications are listed in the table below:
|1||Carrier weight range||t||15|
|2||Operating weight range||Kg||1020|
|3||Impact frequency||Blows/ min||700|
|5||Acceptable oil flow||lpm||90|
The specifications represent the performance parameters of a particular type of hydraulic breaker.
If the specifications of the hydraulic hammer are increased, the performance of your excavator hydraulic hammer also increased.
For instance, the specifications of low-class and medium-class hydraulic hammers are less compared to specifications of a large class.
8. How much hydraulic hammer cost?
The cost of a hydraulic hammer varies from model to model of your excavator.
The cost primarily depends on various factors. These factors include the quantity of material used in manufacturing hydraulic hammers, size of the hydraulic hammer, quality of material used in manufacturing, shape of the hydraulic hammer, etc.
The price of a hydraulic rock breaker hammer lies in the range of $2480 to $3210 per piece for a Mini excavator.
The cost associated with side type hydraulic jackhammer weighing 38 tons varies from $1099 to $3999 per piece.
The price of mining hydraulic rock hammers lies in the range of $800 to $3000 per piece.
As the cost of your hydraulic hammer increases, the quality and lifetime also increase compared to hydraulic hammers associated with lower prices.
9. What are the components of the hydraulic hammer?
There are several components of a hydraulic hammer. Some of the main hydraulic features are listed below:
- Back Head
- Back Oil Seal
- Front Head
- Front Oil Seal
- Control Valve
- Through Bolt
Each component of the hydraulic hammer has its special feature and applications.
Hydraulic hammers will be unable to work if you remove even a single component.
10. What are the benefits of a hydraulic hammer?
There are several benefits of a hydraulic hammer. Some of the major benefits are listed below:
- Because of the smooth and constant force applied to the impact device, hydraulic hammers improve operator safety by reducing the risk of injury caused by jerking or wild hammering.
- Steady blow energy is beneficial in applications that require breaking large amounts of rock or pavement, especially with strike-up energy recovery during the impact cycle.
- The impact energy transferred from the piston increases with the speed of the piston movement, causing a more powerful blow.
- Hydraulic hammer has high efficiency and lightweight and does not produce a lot of noise like juddering effect.
11. How can I install a hydraulic hammer in the excavator?
You can install a hydraulic hammer with the right type of tool kit. The installation procedure of the hydraulic hammer is listed below:
- Lay your hydraulic hammer down on the ground with supported heights in a short-raised position.
- Now bring your excavator close to the laid hydraulic hammer align its hinges with the hinges of the hydraulic hammer.
- Now put in the rods across the hinges of the hydraulic hammer and excavator arm.
- Connect the hydraulic supply lines of your excavator with your hydraulic hammer and tighten the bolts with the help of a screw tightener.
- Make sure there is no leakage exist in the connections that you have made.
- Now test your installation and confirm that everything is operating fine.
12. How can I purchase a hydraulic hammer?
You can purchase your hydraulic hammer from a variety of sources. You can buy it from various online stores or either offline.
You can also purchase it from a local manufacturer.
Online stores have different purchase criteria. To purchase, you need to leave your contact details and disburse the funds.
These stores will directly deliver your order to your provided address within a few days.
To purchase from local stores, you need to visit them physically and then make a purchase by paying net cash.
The thing you need to consider while making a purchase is the quality, model of your excavator, required power or impact, and lifetime.
13. What is the vibration magnitude of the hydraulic hammer?
The vibration magnitude of a hydraulic hammer can be defined as the total amount of energy delivered to the hammer face per blow.
The formal definition is “the maximum relative position change of the mass center from its baseline position due to resonant response demands.”
The vibration magnitude of a hydraulic impact hammer is an important parameter to evaluate a machine’s performance and safety.
The vibration magnitude of hydraulic impact hammers varies depending on the hammer itself and its maximum energy.
The speed of a hydraulic hammer per unit of time at which a hydraulic hammer or machine moves is determined in meters per second.
14. How can I grease a hydraulic hammer?
If your hydraulic hammer is not working well or has problems, it might lack lube.
To grease or lubricate your hydraulic hammer, it is important to fix it in the ground vertically.
An orifice is located outside the hydraulic hammer.
Take the grease pump in your hand, and it is recommended to use copper and graphite grease. It is also known as hydraulic hammer paste.
Put the pump orifice inside the hydraulic hammer orifice and then release the paste into your hydraulic hammer.
It automatically lubricates your bushings, controller collar, and the whole tool.
Greases are formulated with additives that act as a film preservative and prevent the contamination of internal components.
15. How much hydraulic hammer weight?
The weight of the hydraulic hammer varies from model to model. Its variations depend upon several factors.
Usually, the weight of some hydraulic hammers is listed in the table below:
|Sr. No.||Product||Weight (lb)|
A 1.375-ton hydraulic hammer is rated by the ANSI B30.5 Standard as minimum break energy of 3,500 ft/ lbs of 1/2 in. rock when operating at 25-55 Hz.
Using this standard, the capacity of a 1.375-ton hydraulic hammer may vary from 3,500 ft/lbs for a lightweight hammer to 6,000 ft/ lbs.
16. What causes my hydraulic hammer to fail?
The failure of a hydraulic impact hammer is usually due to one or more of the following conditions:
- Any debris will clog the cylinder head, reducing the blow energy and causing the piston to stop moving.
- The hydraulic hammer has been in an extended operation period and has low oil pressure or is leaking oil.
- The principal reason for failures is that the linkages are not maintained with the correct lubrication or excessively worn.
- Either you are trying to apply too much force, or the machine’s hydraulics aren’t capable of handling the pressure.
- Damage can occur, which will fail if the machine is inappropriately operated.
17. Is there any hydraulic hammer on sale?
Yes, you can find one on sale.
The thing you need to do is research on your part.
Many manufacturers or suppliers provide hydraulic hammers around the globe on sale to create awareness or strengthen their market presence or develop confidence among their customers.
On sale, hydraulic hammers provide you with an opportunity to get benefits from lower prices.
Many hydraulic hammer manufacturers provide you with the sale option on different occasions throughout the year.
These occasions include national holiday or local holiday, off-season or on-season sale.
18. What do you mean by Chisel on the hydraulic hammer?
The Chisel is a special cylindrical auxiliary accessory used in the hydraulic hammer, designed to break the concrete when the depth of breakage is varying, reducing the rebound impact and promoting energy conservation.
There are several types of chisels. Some of them are listed below are widely employed in excavation operation.
- Bevel Edge Chisel
- Mortise chisel
- Masonry chisel
- Paring Chisel
- Sash mortise chisel
- Firmer Chisel
Different chisel types are employed in various excavating operations.
The material used in the manufacturing of Chisel determines the lifetime and strength of the Chisel.
Alloy steel is the material widely used in the manufacturing of Chisel, and this material has high resistance to wear and tear.
19. Can I import a hydraulic hammer from China?
Yes, you can import your hydraulic hammer from china.
China is one of the world’s leading suppliers of hydraulic hammers.
When selecting a hydraulic hammer, online brand representatives can help you choose from the wide variety of brands and models available in China.
China has a skilled workforce of engineers, designers, and production specialists who can make all the parts needed for a hydraulic hammer installation.
China also designs and manufactures the parts and mounting hardware for its hydraulic hammer that can be replaced if some component of the hydraulic hammer is out of order.
You can also order a custom-made hydraulic hammer just according to your specifications or needs.
20. What is the maintenance requirement for a hydraulic hammer?
There are several maintenance requirements of a hydraulic hammer. Some of the maintenance requirements are listed below:
- The maintenance requirement for the hydraulic hammer is simple: Hydraulic oil level, oil temperature, water, and coolant in air-cooled hammers should be checked regularly.
- The drill rods should be sharpened before each use to prevent the concrete from wearing the edge off.
- Be sure to check over all of the hoses and hose connections for tightness.
- Hydraulic hammers and pumps shall be inspected after high-load or high-pressure operations.
- Do proper cleaning to remove any pieces of dirt or debris from your hydraulic hammer.
Fulfilling regular maintenance requirements will lead to enhancement in longevity and efficient operation of your hydraulic hammer.
21. How do I choose a hydraulic hammer?
There are several things to consider while choosing your right hydraulic hammer. Some of the main things are listed below:
- Select the breaker depending on its usage, do not select the small or large hydraulic hammer which is not needed; choose the optimum size of hydraulic hammer.
- Consider the lifetime of your hydraulic hammer based on the function it needs to perform and how long it can last.
- Keep in mind to choose the hydraulic hammer embedded with the cushion. Cushion dampens the vibration effect of the piston and prevents blank firing.
- Buy a hydraulic hammer placed inside a strong protective housing, and this housing will provide you with the added protection.
- It is ideal to purchase a hydraulic breaker with an automatic hammer impact adjustment feature, and this allows you to use the same hammer for multiple surfaces and force requirements.
22. Can I use a hydraulic hammer without an excavator?
No, you cannot use a hydraulic hammer without an excavator.
Excavator provides special strength and power to the hydraulic hammer through hydraulics and the main body of the excavator, without which it is almost impossible for the hydraulic hammer to work efficiently and effectively.
23. How do I know that my hydraulic hammer is bad?
Several reasons reflect that your excavator hydraulic hammer is bad.
Some of the popular reasons are listed below:
- Each hydraulic hammer has rated impact energy calculated by the speed at which the machine will deliver a blow of a given weight. This energy is provided through the tips of the tungsten weight. If this energy is reduced by 50% from its original value, the hydraulic hammer should be taken to an authorized service center for inspection and adjustment.
- Losing fluid due to a bad hydraulic oil change valve, broken or pinched return line, or even loose valves can affect performance and cause a flare.
- The performance is slow and sluggish.
- Vibration and noise produced by your hydraulic hammer.
24. What is the difference between a hydraulic hammer and a pneumatic hammer?
The most common types of hammers used in rock breaking are the pneumatic or air hammer and the hydraulic hammer.
The main difference between these two is that, with a pneumatic hammer, the energy to power the upper and lower pounding heads is provided by pressurized air. On the other hand, a hydraulic hammer is supplied by fluid contained within a cylinder.
Hydraulic hammers can offer much steadier blow force than pneumatic hammers due to the heavier working body and larger hydraulic cylinder displacement.
The heavier weight and larger diameter of the working body make larger displacement and produce larger momentum.
The resultant moment causes the excavator’s working parts to work under low-speed high-force, which is suitable for breaking rock through many collisions.
25. What do you mean by troubleshooting a hydraulic hammer?
Troubleshooting a hydraulic hammer is a process of testing and inspecting a machine to determine the cause of failure.
It is important to troubleshoot hydraulic hammers for several reasons.
First, it allows you to pinpoint the cause of problems quickly.
Secondly, it gives you peace of mind that everything is operating as it should be.
Troubleshooting your hydraulic hammer will help you increase the longevity and lifetime of your hydraulic breaker.
26. Which materials are used in making hydraulic hammers?
The materials used for making these hammers mainly include the following: iron, steel, and aluminum.
Other associated metals are nickel, manganese, rubber, plastic, copper compounds, cobalt, zirconium, and tungsten.
When heated, these metals are melted then casted into shape to create a very strong and durable hammer so that it will use its energy in breaking hard rock.