Eccentric overburden casing drilling systems

Casing drilling, or casing while drilling (CWD) process, is a concept that combining two time-consuming processes, drilling and casing together, performing them at the same time. During the CWD process, powered by DTH hammer, a central piloting bit drives a ring bit to drill a hole wide enough for a casing tube to slide down, drilling and casing processes are therefore performed at the same time.

Eccentric is the most economical solutions because its ingenious reaming wing the bit is retrievable can be used at the next hole. This is particularly design for shallow holes, as is often the case in water well drilling, geothermal wells and for shallow micro-piling work. Odex is ideal for short holes in consolidated overburden. The component of Eccentric system consists of Pilot bits, Reamer bits, Guide device and casing shoe.

When drilling, the reamer bit will rotate out to enlarge the hole which enough for the casing tube slide down behind the reamer. When reached required depth, the drill pipe will drill to the reverse direction and the reamer bit will retract, it is allowing the whole drilling system to pass through the casing.

Features

• Complete types of drilling tools suitable for casing tubes with various diameters;

• Good stability and reliability granted by premium alloy steel material and fine CNC manufacturing process;

• Cost-effectiveness realized by mass production.

Applications

Water well drilling, geothermal well drilling, foundation piling, geological prospecting, etc.

Structure

Structure

	01 – Drill Pipe	02 – Guide Sleeve	03 – Steel Casing
	04 – DTH Hammer	05 – Guide Device	06 – Casing Shoe
	07 – Reammer	08 – Pilot Bit	09- Guide Device
	10 – Casing Shoe	11 – Reammer	12 – Pilot bit

GSE-EDS82 Eccentric Drilling System (ODEX82)

GSE-EDS90 Eccentric Drilling System (ODEX90)

GSE-EDS115A Eccentric Drilling System (ODEX115A)

GSE-EDS115B Eccentric Drilling System (ODEX115B)

GSE-EDS140 Eccentric Drilling System (ODEX140)

GSE-EDS145 Eccentric Drilling System (ODEX145)

GSE-EDS147 Eccentric Drilling System (ODEX147)

GSE-EDS165 Eccentric Drilling System (ODEX165)

GSE-EDS180 Eccentric Drilling System (ODEX180)

GSE-EDS190 Eccentric Drilling System (ODEX190)

GSE-EDS230 Eccentric Drilling System (ODEX230)

GSE-EDS240 Eccentric Drilling System (ODEX240)

Retrac button bits are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried, and help improve the straightness of the borehole.

As a China retrac button bit supplier, we can provide you with high-quality button bit includes retrac rock drill bits, such as R25 retract button bit, R28 retract button bit, R32 retrac button bit, R35 retrac button bit, R38 retrac button bit, T38 retract drill bit, T45 retract drill bit, T51 retract drill bit, GT60 retract button bit, ST58 retrac button bit, ST68 retrac button bit, SR35 retrac drill bit and other types of rock drill bit.

R25

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	41	1 5/8″	5 × 9	2 × 8	2	1	0.78	R25-417YFP
	45	1 3/4″	6 × 9	3 × 8	1	3	1	R25-459YFP
	48	1 7/8″	6 × 10	3 × 9	1	3	1.1	R25-489YFP
	51	2″	6 × 10	3 × 9	–	3	1.35	R25-519YFP
	55	2 11/64″	6 × 11	3 × 9	1	3	1.54	R25-559YFP
	57	2 1/4″	6 × 10	3 × 10	–	3	1.6	R25-579YFP
	64	2 1/2″	8 × 11	4 × 10	1	2	2.2	R25-6412YFP

R28

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	45	1 3/4″	6 × 9	3 × 8	1	3	1	R28-459YFP
	51	2″	6 × 10	3 × 9	1	3	1.35	R28-519YFP

R32

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	45	1 3/4″	6 × 9	3 × 8	1	3	0.9	R32-459YFP
	48	1 7/8″	6 × 10	3 × 9	1	3	1.1	R32-489YFP
	51	2″	6 × 10	3 × 9	–	3	1.2	R32-519YFP
	57	2 1/4″	6 × 10	3 × 10	–	3	1.7	R32-579YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	2.2	R32-649YFP
	60	2 23/64″	8 × 10	4 × 9	1	2	1.7	R32-6012YFP
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	R32-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	R32-7612YFP
	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.3	R32-7613YFA

SR35

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	51	2″	8 × 9	3 × 9	2	1	1.6	SR35-5111YFP
	54	2 1/8″	8 × 9	3 × 9	2	1	1.8	SR35-5411YFP
	54	2 1/8″	6 × 10	3 × 9	1	3	1.3	SR35-549YFA

R38

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	R38-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	R38-7612YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	1.9	R38-649YFP
	64	2 1/2″	6 × 11	3 × 10, 1 × 9	1	2	1.9	R38-6410YFA
	64	2 1/2″	8 × 10	4 × 10, 1 × 9	1	4	1.9	R38-6413YFA
	66	2 19/32″	6 × 11	3 × 10, 1 × 9	1	2	1.9	R38-6610YFA
	70	2 3/4″	8 × 10	4 × 10, 1 × 9	1	4	2.4	R38-7013YFA
	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.3	R38-7613YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.3	R38-8914YFA
	89	3 1/2″	8 × 12	4 × 11, 1 × 11	1	4	5.3	R38-8913YFA

T38

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	T38-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	T38-7612YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	1.9	T38-649YFP
	64	2 1/2″	6 × 11	3 × 10, 1 × 9	1	2	1.9	T38-6410YFA
	64	2 1/2″	8 × 10	4 × 10, 1 × 9	1	4	1.9	T38-6413YFA
	70	2 3/4″	8 × 10	4 × 10, 1 × 9	1	4	2.4	T38-7013YFA
	65	2 9/16″	6 × 12	4 × 10	1	2	3.1	T38-6510YSP

T45

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	76	3″	8 × 12	4 × 11	2	2	2.2	T45-7612YFP
	89	3 1/2″	8 × 13	5 × 12	2	2	5.2	T45-8913YFP
	102	4″	9 × 12	6 × 12	–	3	6.5	T45-10215YFP
	115	4 1/2″	9 × 14	7 × 13	–	3	10	T45-11516YFP
	115	4 1/2″	9 × 14	6 × 13	–	3	10	T45-11515YFP
	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.2	T45-7613YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.4	T45-8914YFA
	102	4″	8 × 12	4 × 12, 3 × 12	–	4	7.8	T45-10215YFA
	102	4″	8 × 13	4 × 12, 4 × 12	–	4	7.8	T45-10216YFA
	115	4 1/2″	8 × 14	4 × 13, 3 × 12	–	4	7.8	T45-11515YFA
	76	3″	8 × 13	4 × 11, 1 × 11	1	4	3.5	T45-7613YSA
	89	3 1/2″	8 × 12	4 × 12, 1 × 12	1	4	4.7	T45-8913YSA

T51

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	89	3 1/2″	8 × 13	5 × 12	2	2	4.6	T51-8913YFP
	102	4″	8 × 14	7 × 12	1	2	7.1	T51-10215YFP
	102	4″	9 × 12	6 × 12	–	3	7.1	T51-10215YFP1
	115	4 1/2″	9 × 14	7 × 13	–	3	10	T51-11516YFP
	115	4 1/2″	9 × 14	6 × 13	–	3	10	T51-11515YFP
	127	5″	9 × 14	7 × 13	–	3	13	T51-12716YFP
	89	3 1/2″	8 × 12	4 × 11, 1 × 11	1	4	5.3	T51-8913YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.4	T51-8914YFA
	102	4″	8 × 12	4 × 12, 3 × 12	–	4	7.8	T51-10215YFA
	102	4″	8 × 13	4 × 12, 4 × 12	–	4	7.8	T51-10216YFA
	115	4 1/2″	8 × 14	4 × 13, 3 × 12	–	4	7.8	T51-11515YFA
	115	4 1/2″	8 × 14	4 × 14, 3 × 12	–	4	7.8	T51-11515YFA1
	115	4 1/2″	8 × 14	4 × 14, 4 × 12	–	4	10	T51-11516YFA
	89	3 1/2″	9 × 11	3 × 11, 2 × 10	1	3	4.8	T51-8914YFA2
	102	4″	9 × 12	3 × 12, 3 × 11	1	3	6.9	T51-10215YFA1
	110	4 21/64″	9 × 14	6 × 12, 2 × 11	–	3	10	T51-11017YFA
	127	5″	8 × 16	4 × 14, 4 × 14	–	4	13.5	T51-12716YFA
	102	4″	8 × 14	4 × 13, 1 × 13	–	2	10.1	T51-10213YSA
	115	4 1/2″	9 × 14	6 × 12, 4 × 12	–	3	9.45	T51-11519YSA

GT60

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	92	3 5/8″	9 × 12	9 × 12	–	2	5.1	GT60-9218YSP
	96	3 25/32″	9 × 12	9 × 12	–	2	6.5	GT60-9618YSP
	102	4″	9 × 13	10 × 12	–	2	8.5	GT60-10219YSP
	115	4 1/2″	9 × 14	10 × 12	–	3	10.8	GT60-11519YSP
	127	5″	9 × 16	10 × 14	–	3	15	GT60-12719YSP
	140	5 1/2″	9 × 16	10 × 14	–	3	15	GT60-14019YSP
	152	6″	9 × 16	12 × 16	–	3	20	GT60-15221YSP
	115	4 1/2″	9 × 16	6 × 13	–	3	15	GT60-11515YSP

ST58

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	89	3 1/2″	10 × 12	4 × 12, 2 × 12	–	4	5	ST58-8916YSA
	115	4 1/2″	10 × 14	4 × 14, 4 × 14	–	4	10	ST58-11518YSA

ST68

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	102	4″	10 × 12	4 × 12, 4 × 12	–	4	9.3	ST68-10218YSA
	115	4 1/2″	10 × 14	4 × 14, 4 × 14	–	4	10	ST68-11518YSA

Y018 hand held pneumatic Jack Hammer Air Leg concrete rock drill

Hand-held Rock Drill is widely used for dry drilling in the medium-hard and hard rock. It is widely used in metallurgy, coal,railway, transportation, water conservancy construction and national defense stone works, etc. It is suitable for drilling andblasting under various of rocks at any direction angles.

Yo18 Hand held rock drill

Advantage

• Higher efficiency and reliability.
• Lower noise and Lighter weight.
• Stronger impact frequency.
• Longer life of wearing parts.
• Environment protection.
• Wet drilling and easy cleaning air/ water holes.
• Safe and easy to operate.

Yo18 Hand held rock drill Tapered drill rod

Tapered drill rod,another name called taper rod, tapered drill steels, This provides a hexagonal chuck section to provide leverage for the rotation chuck bushing. It usually has a forged collar to maintain the proper shank striking face position in the rock drill, and a tapered bit end. Tapered steel lengths available from 0.6 mto 3.6 m in length—are measured from the collar to the bit end.

Specifications

YT28（Air-leg）rock drill product features

1、The height of the machine is moderate and the range of the stroke is large, so it can drill the anchor holes which are perpendicular to the roof surface, which solves the problem that the anchor holes in the roadway are not perpendicular to the surface of the roof for a long time, which guarantees the quality and progress of the project, saves the construction cost and improves the efficiency.
2、Good comprehensive rock drilling performance, not only for medium hard rock drilling, but also for rock drilling with f≤6, which can be applied to both rock roadway and quasi roadway.
3、Simple structure and more durable, easy to maintain, lower maintenance cost
4、Flexible start, air and water linkage, air leg fast return, air pressure adjustment and other institutions.
5、The control handle is concentrated with the shank body, the mechanism is novel and convenient to operate with the muffler cover can effectively reduce the noise and change the direction of the row of visits at will to improve the site The operation conditions of the field
6、YT28 rock drill is suitable for wet rock drilling of medium hard or hard rock.

Application

Tunneling and support in mining, transportation, water conservancy, hydropower and other projects. It is mainly used for quarries – dividing rocks.

Specifications

YN27C INTERNAL COMBUSTION ROCK DRILL

YN27C type internal combustion rock drill is widely used in mining, road construction, quarrying, national defense engineering, etc., with various functions of splitting, crushing, tamping and chipping for mining, cement road surface and asphalt road surface.

Handheld YN27C internal combustion rock drill Save time and effort and chisel fast

YN27C internal combustion rock drill has the functions of drilling, splitting, crushing, ramming, shoveling and so on. It can drill holesin rock vertically down, horizontally down to less than 45° and vertically down to the deepest 6 meters. YN27C is widely used in mining, road construction, quarrying, national defense engineering, etc.

• The machine is easy to operate, more time saving, labor savinS, with fast chisel speed, high efficiency.
• At present, the machine naseached the first-class level of similar products, and the parts ointernational similar products can be completely inter chang eable.
• The machine is portable, with anti-skid handle, make the work more safe and efficient.

Specifications

Introduction to yt24 air leg rock drill machine

1.YT24 is suitable for drilling horizontal or tiptilted blasthole in solid hard rocks as well as vertical bolt holes on the roof.

2.YT24 can be used with the air leg FT140B, FT140BD. It is also installed on drill rig or drill frame; meanwhile, we provide a transparent lubricator FY200B to observe the oil level and adjust the oil quantity in order to make sure a favorable lubrication.

3. It is the indispensable tool in mining, railway, transportation, water conservancy construction and earthwork projects.

Specifications

Drill rod threads are divided into several main types, including square threads, taper pipe threads, spiral threads, and straight threads. These threads have their own unique characteristics and are suitable for different drilling conditions and requirements. The selection of thread type depends on factors such as the diameter of the drill rod, the material to be drilled, the drilling depth, and the torque required. It is recommended to consult professionals or manufacturers for specific selection advice to ensure that the drill rod threads meet the needs of the project.

Introduction to yt29a(air-leg)rock drill

YT29A air-legged rock drills are heavy-duty push-leg (air-legged) rock drills with low energy consumption, which are more suitable for drilling horizontal or inclined holes in medium-hard and hard (f=8-18) rocks, as well as drilling anchor holes upwards or downwards. It can be used with FT160A (or FT160B, 160C) according to the size of the roadway section and operating conditions, and can also be used with the drill truck or drill frame for dry or wet rock drilling. In addition, our company provides all YT29A rock drill parts as follows: piston, rotating sleeve, spiral rod, brass nut, valve set, ratchet, tower spring, manipulation valve, shank body, cylinder body, main body, brazing sleeve, brazing card, brazing card bolt, oiler, water injection valve body, fastening pin, ratchet pawl, air pipe nut, air pipe elbow, water needle, etc.

Product Features

1、More output power
2、Rock drilling speed is faster
3、Super strong lubrication system to ensure the long time operation of movement parts
4、The whole machine has optimized design, the impact energy and impact frequency have reached an excellent match, it is your ideal rock drilling tool.
5、Gas and water linkage, quick return of the gas leg, air pressure adjustment and other institutions.
6、Control handle centralized with Back head, the mechanism is novel and convenient to operate, the muffler cover can effectively reduce the noise and change the direction of discharge at will to improve the working conditions in the field.Field operating conditions

Application areas

Mining, traffic, tunnels, water conservancy construction, quarries and other work

Before using the YT29A rock drill note

1、Check the integrity and rotation of all parts (including rock drill, bracket, or rock drill cart) before drilling, fill necessary lubricant, and check whether the wind and waterways are smooth and whether the connection joints are firm.

2、Knock on the roof near the working face, i.e. check whether there are live rocks and loose rocks on the roof and second gang near the working face, and make necessary treatment.

3, the working surface of the flat shell hole location, is to be pounded flat in advance before allowing rock drilling, to prevent slippage or shell hole displacement.

4. It is strictly forbidden to drill dry eyes, and we should insist on wet rock drilling, turn on the water first and then the wind when operating, and turn off the wind and then the water when stopping drilling. When opening the hole, run at low speed first, and then drill at full speed after drilling to a certain depth.

5、No gloves are allowed to be worn by the drillers when drilling.

6、When using the air leg to drill the hole, pay attention to the standing posture and position, never rely on the body to pressurize, let alone stand in front of the rock drill under the work brazing rod, to prevent injury from broken brazing.

7、If abnormal sound and abnormal water discharge are found in rock drilling, stop the machine for inspection and find out the reason and eliminate it before continuing to drill.

8、When withdrawing from the rock drill or replacing the brazing rod, the rock drill can run slowly and pay attention to the position of the rock drill braze.

Specifications

Regular maintenance and proper handling of screw drilling tools can help extend their lifespan and ensure optimal performance. Here are some tips for maintaining and maintaining screw drilling tools during use:

1. Clean the tools after each use: Use a soft cloth or brush to remove any debris or dust from the tool. This will reduce the risk of damage or rusting.

2. Lubricate the tools: Apply a small amount of lubricant to the tool’s threads, shank, and cutting edges. This will help to reduce friction and prevent the tool from getting stuck or breaking.

3. Store the tools properly: Keep the tools in a dry place, away from moisture or humidity. Store them in a protective case or wrap them in a clean cloth to prevent damage or corrosion.

4. Inspect the tools regularly: Check the tools for signs of wear or damage, such as dulling or chipping of the cutting edges or threads. Replace any damaged parts immediately.

5. Handle the tools carefully: Avoid dropping or striking the tools, as this can cause damage or deformities to the tool.

By following these tips, you can ensure that your screw drilling tools are well-maintained and perform optimally during use.

Using laser cleaners requires careful attention to safety and operational considerations. Here are some precautions to take when using laser cleaners:

Personal Protective Equipment (PPE):
Wear appropriate PPE, including safety glasses with the correct optical density for the laser wavelength being used. Depending on the laser power and the specific cleaning environment, additional PPE such as gloves, face shields, and protective clothing may be necessary.

Area Preparation:
Ensure that the cleaning area is properly prepared and free of flammable materials or other hazards that could be ignited by the laser beam or the cleaning process.

Ventilation:
Provide adequate ventilation to remove any fumes, vapors, or particulates generated during the cleaning process. This helps maintain a safe working environment and prevents exposure to potentially harmful substances.

Controlled Access:
Restrict access to the laser cleaning area to authorized personnel only. Use signage and barriers to clearly demarcate the laser operation zone and prevent unauthorized entry.

Training:
Ensure that operators are properly trained in the safe use of laser cleaners, including how to operate the equipment, handle laser hazards, and respond to emergencies. Regular training updates and refresher courses are also beneficial.

Beam Control:
Use beam control mechanisms such as beam shutters, interlocks, and beam blocks to prevent accidental exposure to the laser beam. Ensure that the laser beam is directed away from reflective surfaces and bystanders.

Monitoring:
Continuously monitor the laser cleaning process and the surrounding environment for any signs of abnormal operation, such as smoke, unusual odors, or unexpected reflections of laser light.

Emergency Procedures:
Establish clear procedures for responding to emergencies, including laser beam exposure, fire, chemical spills, or other accidents. Provide appropriate emergency equipment such as fire extinguishers, eye wash stations, and first aid kits.

Maintenance:
Perform regular maintenance and inspections of the laser cleaning equipment to ensure proper functionality and safety. Follow manufacturer recommendations for calibration, alignment, and servicing.

Regulatory Compliance:
Adhere to relevant safety standards and regulations governing the use of lasers in your jurisdiction, such as ANSI Z136.1 in the United States or IEC 60825 internationally. Obtain any necessary permits or approvals for operating laser equipment.

By following these precautions and implementing proper safety measures, you can minimize the risks associated with using laser cleaners and create a safe working environment for operators and bystanders.

SCRAPER WINCHES，Underground Mining Scraper Winch

Mining Scraper Winch is mainly used for coal mine & other underground mine or open-pit ore handling and filling operations. It is mainly used for horizontal plane transport and slope dumping with small slope angle, but it cannot be used as lifting equipment. The parallel arrangement of electric tweezers is common to the PB series bucket loading machine.

The main components of the electric tweezers are a speed reducer, a main reel, a secondary reel, an operating device, a steel wire for guide and an electric motor. These components are housed inside and outside the housing. The housing is a component with good rigidity, which serves as a protection, support and full load.

Product Description

The usage of the scraper winch 2JP,2JPB series scraper winch is mainly use in metal mine and other coal mine’s pit and ore’s carrying and filling working,is applicable to the scraping which ground is horizontal or the slope not more than 44 degree.

Do you know the difference between 2JP and 2JPB electric scraper winch?

For 2JP electric scraper winch,the motor is non-explosion proof.

For 2JPB electric scraper winch,the motor is explosion proof.

For ” 2 “,it means the drum’s quantity is two.

For  “J”,it means electricwinch.

For ” P”,it means the electric winch use for scraping.

For “B”,it means the explosion proof electric winch.

Parameter of Double Drum Electric Slusher Winch with Scraper Bucket

Integral drill rods are ideal in small hole drilling, all integral drill rods consist of Hex. rods with integrated cemented carbide chisel-shaped bit heads. With the same steels as Sandvik and best carbides made in China, we are supplying different lengths of integral drill rods with different head diameters.

Parameters

• Rock drill connection: H22*108mm
• Diameter: 26mm-41mm
• Length: 800mm-8000mm

Features

Carburizing process is applied to promote surface hardness, thus grant better wearing quality and lifespan for the drill rods;
23CrNi3Mo, which is in same league as Sandvik Sandbar 64, is applied as drill rod material.
Cost-effective, good performance with reasonable price.
Complete types of drill rod for various drilling scenarios.

Applications

Drilling duties in tunneling, construction, mining, quarrying, etc.

Integral Drill Rods

Plug Hole Rods

DTH Hammer Threaded Connection Tightening Issues and Solutions

During drilling operations, the threaded connections between the driver chuck and top sub may become excessively tightened due to high tension. While operators can initially attempt to disengage hammer threads directly on the rig, persistent thread locking or seizure requires the use of a dedicated **breakout bench** for controlled disassembly.

Modular Breakout Bench Features

This compact yet high-power breakout bench is designed for portability and can be deployed in workshop or containerized environments. It supports disassembly of DTH hammers within a 3″–10″ diameter range Key considerations for equipment selection include:

1. Voltage compatibility

2. Power source type (electric/hydraulic)

Specification parameters

• DTH Hammer Size: 3” – 10”
• Bench Size: 1060*930*1050mm
• Weight: 800kg
• Max Tightening Torque: 67 kN*m(50ftlb)
• Max Loosening Torque: 81 kN*m(60ftlb)
• Operating Height: 800mm
• Hydraulic Pressure Range: 0-20 Mpa
• Power: 3Kw, 220V, 50Hz
• Chain Rotation Speed: less than 10 rpm
• Piston Driver Speed: 1.8m per minute

How to use DTH Hammer breakout bench equipment?

1.Put hammer on the bench.

2. Fix K-shaped base with nut.

Note: Please make sure red point on the K-shaped base and red point on the bolt are at the same side.

3.Adjust the position of hammer and wrench;

Use wrench to block the wrench flat of hammer;

Let wrench and jack in the same face.

4.Fix wrench.

5. Shake handle of Jack slowly till top sub away from hammer

6.After top sub dismantled, release pressure of Jack and put hammer on the bench like above photo to dismantle drive chuck of hammer.

7. Fix K-shaped base with nut.

Note: Please make sure red point on the K-shaped base and red point on the bolt are at the same side

8. Fix hammer

9. Adjust the position of hammer and wrench;

Use wrench to block the wrench flat of hammer;

Let wrench and jack in the same face.

10. Shake handle of Jack slowly till dive chuck away from hammer.

As a reaming drilling tools, domed button bits are used when a large diameter is needed to be reamed out after a pilot holes is drilled to a depth.

SHANDIKE Domed Button Bits

Domed button bits as one of the reaming drilling tools are used when a large diameter is needed to be reamed out after a pilot hole is drilled to a depth.

Parameters

• Thread size: R28, SSR28, R32, SSR32, R35, SSR35, R38, T38, T45, and T51.

• Diameter: 76mm to 152mm.

Features

• Alloy buttons are hot mounted into the drill bit, ensuring the bit good accuracy and durability;

• Reliability ensured by premium drill bit materials and premium alloy button;

• Different types designed for different drilling scenarios and rock conditions;

• High speed and drilling efficiency;

• Cost-effective, good performance with reasonable price.

Applications

Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.

Thread Domed Button Bit

R32 Thread Domed Button Bits

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