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Used jackhammers are available in various types. These types work differently depending on the location and the source of power.
Pneumatic jack hammers
Pneumatic hammers use compressed air. Most times, the air is supplied by an air compressor. They are powerful and are therefore suitable for heavy-duty construction, mining, and demolition tasks. The air compressor needs to be close enough for proper functionality.
Electric jackhammers
These types of hammers are powered by electricity. They are suitable for light to moderate work. They also have less hammering power than pneumatic ones. Electric hammer drills are perfect for users who want to reduce noise and need something easily portable. They also need less maintenance compared to the pneumatic type.
Hydraulic jackhammers
These hammers derive their power from hydraulic fluid. The fluid is often pumped through hoses from a hydraulic power unit. Just like pneumatic ones, they are perfect for heavy-duty tasks. They are commonly used in construction and mining.
Gas-powered jackhammers
Gasoline or other fuels are used to power these hammers. They are more portable than electric and pneumatic hammers. However, they produce more noise and emissions. They are common in remote work sites where electricity is not available.
Construction
Jackhammers are widely used in the construction industry. It is used for breaking concrete, asphalt, and other tough materials during building projects. They help in tearing down old structures paving the way for new constructions.
Roadwork and infrastructure
They help in road repairs. This is due to their capability to remove damaged asphalt and concrete from roads. Jackhammers help in the installation of underground utilities like water, gas, and electrical lines.
Mining
In the mining industry, jackhammers are used for ore extraction. They break up rocks to create shafts, enabling workers to gain access to mineral deposits. Hydraulic and pneumatic jackhammers are particularly ideal for this heavy-duty project.
Demonolotion
Dextend jackhammers are used for demolishing old buildings and structures. They are useful for breaking up reinforced concrete and other big materials in this process.
Utility work
For gas, water, and electrical companies, jackhammers are used to break concrete slabs or asphalt pavement when carrying out installation or repair services. They help the workers gain easy access to buried lines and pipes.
Quarrying
Jackhammers play a crucial role in quarrying. It helps in the extraction of stone and other minerals. Electric and pneumatic jackhammers are especially more useful when it comes to breaking granite and other tough rocks.
Heavy equipment maintenance
Industrial jackhammers are vital when removing or replacing parts of heavy equipment like excavators and bulldozers. These parts include concrete-worn-out parts that are fixed to heavy machinery.
Power and performance
Jackhammers come with different power ratings and impact frequencies. The impact rate is measured in BPM or blows per minute. A higher BPM means quicker work. The electricity or air pressure needed for jackhammers varies with model and type.
Weight
Weighing common types of jackhammers vary widely. It can be from 10 pounds to 80 pounds. Lighter models are used for small tasks. On the other hand, heavier models are suitable for breaking tougher materials.
Bit compatibility
Pneumatic jackhammers use a clevis or bolt-on type of retainer to operate. On the other hand, electric jackhammers use a chuck key or keyless chuck. Some electric jacks also use a bolt-on type of retainer.
Vibration dampening
Most electric jackhammers are equipped with special anti-vibration technology. This feature reduces hand-arm vibration. It, therefore, lessens fatigue and gives comfort during operation.
Preparing the work area
The first step is clearing the area of any obstacles. Remove debris, vegetation, or anything that can hinder getting the work done. Then locate and mark any underground utility lines to avoid damaging them. This will ensure safety.
Setting up power source
Jackhammers need variable power sources to function well. Most pneumatic jackhammers need air pressure. So connect a compatible air compressor to take up the job. For electric jackhammers, ensure there is power electrical source available. This is because most electric jackhammers come with long cords that need electric power.
Attachment of bits
Electric jackhammers often have bits that require attaching or detaching easily. So attach the bit that is suitable for the task. Ensure the bit is secured tightly to avoid any safety issues. For pneumatic hammers, the process of attaching bits may be complicated. Hence, it is fired best done by professionals.
Safety gear
Before starting the jackhammer, wear appropriate safety clothing. These clothes include gloves, goggles, ear protection, and boots. Ensure the gear covers the entire body to avoid injuries. After setting everything needed up, turn on the power source and begin the work while holding the tool firmly.
Maintenance
Some maintenance practices are done on jackhammers to ensure they are always in good condition. They include practices done daily or after use and practices that need to be done regularly or after a long time of use. Daily services include checking air and water hoses for leaks. Other daily maintenance includes cleaning the bits using a wire brush to eliminate debris and dirt. A small amount of grease should also be applied to the bits and bushings.
Repairing worn brushes
Repairing worn brushes is a do-it-yourself project that can be done by any jackhammer owner. All that needs to be done is removing the cover and locating the carbon brushes. During replacement, ensure the new brushes follow the correct orientation.
Replacing damaged parts
Another maintenance practice that warrants the owner to be a bit skillful is replacing damaged parts. It includes replacing cracked pistons and damaged cylinders. One has to open the tool and separate the cylinders and pistons from the other parts. Then replace the damaged ones with new ones. The process can be tough and time-consuming, so it's best left to professionals.
Checking electrical components
Use a multimeter to test the jackhammer's wiring. The meter should be set to Ohms to measure resistance in the wiring. If the wiring has continuity, it indicates the wiring is in good condition. A lack of continuity means there is damage to the wiring that needs to be fixed.
Assess needs
Find out the project requirements and jackhammers typical usage. This will entail determining the particular type of material to be broken, the quantity of hammering to be done, and whether the occasional or routine job is to be done. Take note of the required power and the size of the job. If in doubt, ask for assistance from professionals. Then choose the appropriate type. Decide on either an electric or pneumatic jackhammer. Electric jackhammers are ideal for light to moderate work. On the other hand, pneumatic hammers are suitable for heavy-duty tasks.
Check jackhammer condition and history
When buying a used jackhammer, it is necessary to know the condition of the tool. Check how long the jackhammer has been used and what the owner used it for. Does it have a history of heavy-duty work? Such jackhammers are most likely worn out and have less power. In very old jackhammers, watch out for signs of rust and corrosion. They often damage the electric wiring and air hoses. Also, check whether the jackhammer is missing some parts like brushes.
Assess specifications
When assessing the specifications, consider the weight and power of the jackhammer. In a jackhammer, higher power equals high performance. This means it can handle tougher materials with ease. Weight, on the other hand, determines how easy or hard is it to be operated. Lightweight models are more portable. On the flip side, heavyweight models have higher power. But they can cause fatigue to the workers. So balancing out the weight and power is crucial.
Check for rust and corrosion
Rust and corrosion can wear down jackhammers. To avoid this, consider looking for pneumatic jackhammers made of aluminum alloy. They are lightweight and do not cause rust and corrosion. A corded electric jackhammer made of stainless steel might be a good option, too. As for cordless electric jackhammers, any variant will work as long as they come with replaceable lithium-ion batteries. Lastly, give preference to models that include anti-vibration technology. Prolong usage can cause excessive vibration to damage the tool as well as discomfort for the user.
A1. Yes, of course. Used hydraulic hammers can give the optimal performance they are designed for. It's true they don't have all the fancy new features. But they are just as strong and tough as the new ones. Which makes them a really good choice for anyone who needs a strong tool.
A2. Yes. There are several ways one can extend the lifespan of their jackhammers. People extend their life by cleaning and lubricating them regularly. They also replace worn-out parts when needed and store them properly. Protecting them from extreme temperatures and even harsh chemicals helps. Lastly, using dust covers and water feeders offers additional protection.
A3. Greasing is the most essential maintenance routine for jackhammers. A well-greased jackhammer operates smoothly and efficiently. It reduces friction and wear on the internal parts. Jackhammers are exposed to extreme working conditions. Without grease, jackhammers are more likely to overheat and get damaged.
A4. Yes, jackhammers should be stored under a cover. Covers protect the hammers from harsh weather conditions. It also reduces the risk of damage when the jackhammer is not in use.
A5. Avoid using jackhammers for long periods without breaks. This can lead to operator fatigue and discomfort. It can also cause damage to the tool. Giving breaks allows both the user and the jackhammer to rest and cool down.
