Durable Overburden Symmetrical Concentric Casing Drilling System for Hard Rock Drill

• Customized: Customized
• Surface Treatment: Spray
• Type: Non-magnetic Drill Collar
• Standard: DIN
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Model NO.: MK-MRS660
• Model: Mk-Mrs660
• Hole Dia: 735mm
• Weight: 1200kg
• Closed Dia: 656mm
• Pilot Dia: 681mm
• Length: 1207mm
• Transport Package: Wooden Case
• Trademark: MING
• Origin: Made in China
• HS Code: 8207199000
• Production Capacity: 20000PCS/Year

Product Description

 

Durable Overburden Symmetrical Concentric Casing Drilling System for Hard Rock Drill

Product Description

MRS Concentric under reaming drilling system is designed for unstable ground conditions. In the process of drilling, it could carry down casing pipe to the hole to protect wall to achieve drilling work. This system is made up of guide device and reamer bit which adopted graphic design to enhance penetration rate.

Expanding principle as below: guide device calms down pressure, open expanding wings in clockwise and shut down expanding wings in anticlockwise. This system is used for loose rock hard can greatly increase the penetration rate. Concentric type is suitable for 219-813 mm tube in diameter.

1. Competitive Quality: Our overburden casing drilling offers a competitive quality that meets industry standards and surpasses expectations.
2. High-Quality Raw Materials: Crafted using only the finest raw materials, our drilling product ensures durability and longevity.
3. Timely Production Delivery: With a focus on stability and efficiency, we guarantee timely production and delivery of your order.

 

Technical date

 

Model	Hole dia.(mm)	Weight (KG)	Closed dia(mm)	Pilot dia (mm)	Total length(mm)	Case Dia(OD*ID)	Spline
MK-MRS190	238	80	190	203	550	219*206	DHD360,QL6,SD6
MK-MRS215	276	100	215	236	590	254*240	DHD380,QL8,SD8
MK-MRS235	293	110	236	251	590	273*254	DHD380,QL8,SD8
MK-MRS240	293	115	241	256	590	273*260	DHD380,QL8,SD8
MK-MRS280	345	180	280	300	740	323*302	SD10
MK-MRS315	373	240	315	336	1050	356*337	N120
MK-MRS365	432	350	365	381	1100	406*387	N120,N125
MK-MRS410	478	460	412	430	1100	457*435	N125
MK-MRS460	530	585	460	475	1100	508*483	N125,SD18
MK-MRS510	580	860	509	527	1180	559*533	N180,SD18
MK-MRS560	635	910	560	581	1180	610*584	N180,SD18
MK-MRS610	695	1100	600	630	1200	660*632	N240
MK-MRS660	735	1200	656	681	1207	711*685	N240
MK-MRS710	785	1480	710	730	1207	762*736	N240
MK-MRS745	838	1650	745	776	1207	813*780	N240

 

How to order:

Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style

 

Product Application

It is suitable for drilling water wells , geothermal wells , short micro piles ,medium mini-type grouting hole of building , dam and harbour project.

 

Our Advantages

1. High quality steels materials.

2. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.

3. Advanced heat-treatment equipment: multipurpose furnace heat treatment.

4. Completed moulding (tooling ) departments with many molds available.

5. Professional R&D team,completed quality system.

6. Strict Quality-Check Systems.

Company Profile

Wuhan Kingdrilling Diamond CO., LTD, one of the most professional private manufacturer specialized in researching and producing Overburden casing drilling system, DTH hammer, DTH drill bits, Core bits, Thread bits, Taper bits, Shank adapter, Drilling rods, Coal mining picks and related rock drilling tools.

Relying on the university resources and talent advantages in High-tech region, combining with multiple laboratories in universities, we have more power focused on developing the newest products system.

Our DTH drilling tools are produced with advanced technology from Britain. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, from raw materials prepared, forging, heat treatment, mechanical processing, a completed manufacturing system is finished in the factory. Strict quality control standards make sure stable quality. 

Whatever in construction, engineering, piling, water well drilling, tunneling, mining, quarrying or horizontal drilling industry, KINGDRILLING will do the best to satisfy your demands. "Kingdrilling, Keep On Striving", we'll always be in this line to serve our customers the most reliable products and the best support.

 

After Sales Service

1.Pre-sale service:

Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
1.Select equipment model;
2.Design and manufacture products according to client's special requirement ;
3.Train technical personnel for clients .

2.Services during the sale:

1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .

3.After-sale services:

Provide considerate services to minimize clients' worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
3.Other essential technological service.

Packaging & Shipping

Packed by Carton or Wooden cases.
Delivery:

1. Goods in stock can be delivered within 5 days.
2. DTH Bits production time is about 15 days.
3. DTH Hammer product time is about 30 days.

Transprotation: By air, By Express or By sea / By train , according to your requests.

 

FAQ

1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.

2. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.

3. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.

4. Shipping way.
Sample order: We suggest Courier express like DHL/UPS/FEDEX or by air/by train.
Bulk order: We suggest by air or by sea.

5. After Services.
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time.
 

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