Hand Held Mining Drill
Your Professional Hand Held Rock Drill Manufacturer in China!
Hunan Liyan Technology Co., Ltd. was established in September 2015 with a registered capital of 13.15 million. Our factory is located on Jianye Road, Yongzhou Economic Development Zone, covering an area of 33,334 square meters. The main products include rock drilling and fracturing machines, fully hydraulic rock drills, fully hydraulic excavation and transformation drilling machines, hydraulic splitting machines, and other products. Our products are widely used in super-hard rock open-pit mining, tunnel excavation, static rock blasting, industry and mining, building construction, municipal engineering, national defense engineering and other fields.
Why Choose Us
Quality Control
Our factory's products are produced using domestic advanced production technology and independent research and development processes, and have passed ISO90001 quality management system certification and safety production standardization construction.
Advanced Technology
Our factory cooperates with Central South University, National University of Defense Technology, China University of Mining and Technology on research and development projects, and has 83 patents, including 13 core patents for rock drilling and fracturing machines. The company has won the title of High-tech Enterprise, Specialized and Special New "Little Giant"Enterprise title.
Advanced Equipment
Our factory currently has more than 80 professional personnel and more than 120 sets of CNC and testing equipment.
Rich Experience
Our factory has more than 8 years of experience. We strive for excellence in product manufacturing and have perfect product production lines.
Introduction of Hand Held Rock Drill
Combining power and maneuverability, the hand-held rock drill is the perfect partner in a wide variety of applications where maneuverability and easy handling are important. Available in two models, one for horizontal drilling and one for vertical-down drilling, the hand-held rock drill guarantees powerful, reliable and flexible operation.
Advantages of Hand Held Rock Drill
Greater Versatility
Our choice of hand held rock drills effectively allows us to deliver a higher quality service. The technology provides a precise drilling capability, which means we can complete a more complex operation that meets the demands of some very specific projects.
Strategic Drilling
Any hand held rock drill is capable of creating very precise holes in hard or soft rocks, as well as in concrete. This is particularly important when drilling in standing structures, such as bridges and buildings, where demolition is not required but where strategic holes are required to accommodate the installation of strengthening materials or corrosion prevention electrodes in concrete beams.
More Economical
With the ROP so good, the economical aspects of the hand held rock drill is also more impressive. Its efficiency means it produces at a higher quality in a shorter period of time, the drill breaks down less often and drill bits need replacing less often. What all this means is that costs are kept low, which is better for your budget.
Choosing the Right Hand Held Rock Drill Does and Doesn't
The Do's:
Always make sure to choose the rig according to the terrain you are going to be working on.
Inspect the rig thoroughly before purchase. Check to ensure it meets with all the quality standards and has sufficient drilling fluid to avoid any accidents or mishaps.
Proper maintenance is the key to the long life of your rig. Do make sure to maintain it on a regular basis to avoid any breakdowns.
Safety, reliability and ease of use are also important elements to consider before purchase.
Make sure the drilling contractor you are dealing with promises the rig to be delivered on time without any delays and has great after-sales service. This is vital in case of any breakdowns.
Be wary of the speed & power of the drilling rig. This can help save a lot of time for your workers during the drilling process and increase efficiency.
Ascertain the drilling contractor you are about to place the drilling rig order with has a global presence and has happy client testimonials. This gives off a sense of credibility and trust in the market.
The Doesn't:
Improper Maintenance – Failing to maintain a drilling rig can cause serious damage to the equipment. It could also cause the drill rod to stop functioning, which may cause injury or death to the rig operator. Other factors include, leaks in the hydraulic or fluid pump systems can cause shortages or cause the machinery to seize up while working and cause costly project delays.
Do not be hasty in your decision and succumb to high pressure. Always take the time out to research and see which contractor offers the best solution to your business needs.
Do not purchase a used drilling rig. No matter how tempting it may be due to factors such as low price, short delivery time, local contractors as it may not be future-proof and there will be a high chance of a breakdown.
Drilling Industries are sanctioned to have their own auxiliaries such as drilling bit, drilling pipe, drill string to help support the drilling process adding further enhancements. But the quality of these supporting equipments may not always be up to the mark.
Therefore, it is imperative that a thorough inspection of these products be done beforehand, if you are planning to buy it from your contractor itself.
No proper research – Factors such as size, capabilities and shipping considerations all need to be taken into account when thinking about how much your business or organization is able to commit to.
Operating Hand Held Rock Drills
● Before Start-Up and Before Each Use
Check all threaded fasteners and fittings for tightness
For first running and especially if the tool has been in stock for a lengthy time, it is a good idea to put tool oil in the air inlet before operating the tool, connect hose to the tool and begin work. You must fill oil reservoir before using, no oil is shipped in the tool.
Installing Steel
Be sure to use steel with the same shank type as the tool.
Check steel shank for wear. A worn shank or an uneven top end may result in damage to the tool or steel breakage.
Check the cutting edge of bits for sharpness. Inspect steel for nicks or cracks which could cause breakage. Always use sharp, or properly sharpened steels, dull steel will transfer impact force to the tool causing damage to the tool and increased vibration to the operator.
Connecting the Air Hose
Use only air hose with a rated capacity equal to a minimum of 150% of the air compressor and with couplings secured by approved clamps.
Always blow out hoses to clean and to remove any dirt, stones, water and oil before attaching to the tool.
Check rubber gaskets or washers in hose couplings for wear or cracks.
Always connect couplings properly and secure with approved safety clips and whip checks.
The use of suitable whip hose and oiler of proper length may decrease operator effort and prolong tool life.
● Starting & Operating
DO NOT run the tool without proper steel installed in the tool and the retainer locked in place. It’s a good idea to put a little grease on the steel shank before operation.
DO NOT run the tool without the drill bit firmly against the work surface.
DO NOT allow the tool to free run or dry fire, always keep the tool on the work.
Always apply sufficient down pressure to keep the tool from bouncing or skipping. The proper amount of down pressure may vary depending on the material being worked and the diameter of drill bit being used. Different types of bits, whirly or cross bits work differently and with varying weight of tools, this requires skill and application knowledge.
Do not allow the tool to bounce, as this may damage the tool and steel.
● Start Continued
When starting (collaring) the hole, hold the drill firmly against the work and use a steel short enough, so the drill can be handled comfortably. Turn the throttle lever gradually and drill at a slow speed until the hole is collared. The drill should be kept at right angles to the work until the hole is collared, then repositioned for angle drilling.
Always apply sufficient down pressure to keep the tool from bouncing. The proper amount of down pressure will vary depending on the material being drilled and the size and depth of the hole. The correct amount of down pressure, for maximum drilling efficiency, can only be learned through experience, but generally speaking, is usually recognizable by the rhythmic sound of the exhaust and the free rotation of the drill steel. Insufficient pressure will cause the drill to bounce, which may result in damage to the tool and may crack carbide bit inserts while too much pressure will slow down the drill and may result in stuck steel.
Keep the drill, the steel, and the hole aligned. Misalignment will reduce drilling speed, cause unnecessary wear in the tool, and may result in steel breakage.
Keep the hole clean. Use the blow only function of the drill frequently to remove cuttings.
Use half throttle in broken or heterogeneous material.
Raise bit from bottom of hole and blow hole clean before removing bit and steel.
● Care After Each Use
Be sure to turn off the compressor discharge valve and allow the downstream vent to release all air pressure from the hose before disconnecting air hoses. Re-check by teasing throttle on tool. Be sure not to allow dirt or water to enter the air inlet of the tool.
Pour a little recommended oil (1 ounce approximately) into the air inlet and tease throttle for a second before putting away, repeat 1. Re-check torque on side rod bolts for proper tightness.
Store tool well-oiled and upright in a safe, dry place.
How to Control the Noise of Drill Rod Of Hand Held Rock Drill?
Understand the Sources of Noise
To effectively control the noise emitted by the drill rod of the hand held rock drill, it's essential to understand its source. The noise primarily stems from the lateral vibration of the drill rod, with its frequency range concentrated in the high-frequency spectrum. Noise mitigation for the drill rod focuses on two key aspects: 1) minimizing bending waves and 2) reducing the acoustic radiation of these bending waves.
Methods to Reduce Bending Waves
Reduce the matching gap between the shank sleeve and the shank adapter.
Increase the length of the shank adapter.
Ensure that the rotating sleeve is aligned with the inner hole of the cylinder in the rock drill.
Cancel the forged drill shoulder on the drill rod.
Best shaft thrust.
Use low-noise alloy steel to make drill rods.
Reduce the acoustic radiation of bending waves
Use rubber drill shoulder to attenuate bending waves.
Paste elastic damping material on the drill rod.
Choose Low-Noise Equipment
Choosing a low-noise hand held rock drill is the fundamental measure to control noise. When purchasing equipment, you can pay attention to the equipment's noise indicators and choose low-noise equipment that meets national or industry standards. At the same time, we can also consider purchasing rock drills with noise-reduction devices to further reduce the noise level.
Optimize Working Environment
Optimizing the working environment is also an effective way to reduce the noise of the drill rod of hand held rock drills. At the construction site, sound barriers or walls can be set up to reduce the spread of noise. At the same time, work hours should be reasonably arranged to avoid high-noise operations during rest periods or at night, reducing the impact on surrounding residents.
Improve the Rock Drilling Process
Reasonable rock drilling technology can also reduce the noise of the drill rod to a certain extent. For example, adjusting the impact frequency and force of the rock drill can ensure smoother impact on the rock, thereby reducing vibration and noise. Also, a well-planned arrangement of rock drilling sequence and depth can help avoid excessive impact, further reducing noise levels.
Regularly Inspect and Maintain the Drill Rods
As a critical component of the hand held rock drill, the condition of the drill rod directly affects the generation of noise. Regularly checking the wear and damage to the drill rods and timely replacing the badly worn ones can keep the equipment in the best working condition and reduce noise generation. At the same time, lubricating and cleaning the drill rod can ensure its surface is smooth and reduce the noise level to a certain extent.
Proper Use and Maintenance of Equipment
Proper use and maintenance of hand held rock drills are equally vital in controlling drill rod noise. During use, ensure the drill rod is firmly connected to the rock drill to avoid additional noise caused by looseness or vibration. In addition, regular maintenance and upkeep of the equipment to keep the equipment in good condition can also reduce noise generation to a certain extent.
Strengthen Operator Protection
In addition to the above methods, the operator still needs to take definite protective measures. We wear personal protective equipment such as earplugs or earmuffs, which can effectively isolate noise and protect hearing. At the same time, regular hearing checks are conducted on operators to detect and deal with hearing loss problems promptly.
Training and Guidance
Relevant training and guidance for operators is also an essential part of noise control. Through training, operators can understand the principles of noise generation and control methods and master correct operating skills and maintenance methods. Additionally, organizing regular safety education and publicity activities to raise operators' awareness of safety and noise control is also an effective measure to reduce noise.
Innovative Noise Reduction Technology
With the advancement of science and technology, more and more innovative noise reduction technologies are applied in engineering. We can consider adopting advanced noise reduction technologies to reduce drill rod noise. For example, develop new silencing materials or silencing structures to improve the design of rock drills; research new vibration control technologies to reduce the vibration noise of the drill rod during the rock drilling process, etc.
Longer Life for Your Hand Held Rock Drills
Get the Right Tool for the Right Job
To produce quality work and avoid damage to the machinery, you need a tool with the right dimensions and the right hardness. That sounds simple and self-evident, but check these examples– each of which can accelerate wear or even damage to the piston and bushing:
1. Incorrect angle on the bushing 2. Centering point on impact surface 3. Rebar on the shank area into the bushing 4. Irregular impact surface.
Avoid Water Contamination
A large mobile drill can generate up to a bucket of water per shift. If left unmanaged, the water can turn into ice particles, which can cause damage to the tool. To avoid this, place a water separator as far away from the compressor as possible. This will help minimize the risk of water damage and corrosion and eliminate problems caused by freezing. It is also important to drain the water from the receiver tank of the compressor and to blow off any residual water in the hoses.
Lubricate
This creates cooling and reduces friction, ultimately reducing wear. In other words: lubrication doesn't just improve performance (right now), it also extends life (in the long run). If the tool you're using does not have built-in lubricator, use an external lubricator to keep all moving parts protected with a layer of oil. To do so, install a lubricator within three meters from the tool. But not without a water separator before the lubricator, to prevent water and oil getting mixed.
Good Service is Key to a Long Life
Regular check-ups help detect and resolve problems before they become fatal. Regular and professional servicing with premium parts is the key to a long life for your pneumatic tools. Always make sure that your tools are serviced by authorized staff with the proper training, and that only genuine parts are used to replace components.
Our Factory
Our factory covering an area of 90 acres, with a construction area of more than 40,000 square meters, including 18,000 square meters of factory buildings. Our factory is a manufacturer specializing in the production of rock drills, hydraulic drilling rigs, drilling rigs, and splitting machines.
Ultimate FAQ Guide to Hand Held Rock Drill