DHD340 Symmetric Overburden Casing Drilling Systems Casing Shoe Ring Bit Set for Simultaneously Drilling

• After-sales Service: Provide
• Warranty: 1 Year
• Certification: CE
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Carbon Steel
• Model NO.: Concentric Casing System
• Product Name: Casing System with Ring Bit
• Suitable Hammer Size: 4"-12"
• Casing Size: 146-377mm
• Use: Well Drilling
• Transport Package: Wooden Box
• Trademark: CS Drill
• Origin: Hunan, China
• HS Code: 8207
• Production Capacity: 5000

Product Description

Product Description

SYMMETRIC OVERBURDENDRILLINGSYSTEMS(Permanent)roduct Description

1. The hole-forming straightness is good and the drilling speed is fast.

The working principle of centering drilling can ensure that straight holes can be drilled in all strata such as gravel layer, sand layer and pebble layer, and the drilling speed is fast.

2. Less torque during drilling.

Centering drilling requires much less torque than eccentric drilling. The ring drill ensures smooth and stable drilling under all conditions, even if a small drilling rig is used, larger holes can be drilled.

3.Unlock-relocking is easier.

Sometimes it is necessary to unlock the system during drilling, and it is easy to re-lock the centering drilling, because there is no eccentric member in the system that must be opened and closed in the hole.

4. Drilling can be carried out at any angle.

The centering drilling tool can drill holes at any angle.

5. The slag discharge effect is good.

In centering drilling, the air flow used for slag removal immediately rises along the casing after being ejected from the pilot bit, so the damage to the hole wall is small and the slag removal effect is good.

6. Easy operation and safe system.

Because the centering drilling work is smooth, drillers don't need to pay continuous attention to drilling work.

7. Economy and low cost.

The structure and working principle of the centering drilling system can ensure that the downtime can be significantly reduced, with less consumables and low operating cost.

Product Parameters

Tube parameters		Concentric Casing System				Concentric bit		Reaming sleeve		Recycle or not
Model	Wall Thickness(mm)	Model	Reamed Dia.(C)mm	Diameter through drill bit(mm)	weight (Kg)	Model	weight (Kg)	Model	weight (Kg)
114	10	114-DHD3.5-1	126	84	10	114-DHD3.5	6.5	114-1	3.5	no
		114-DHD3.5-2	122		9.8			114-2	3.3	yes
127	10	127-DHD3.5-1	142	93	16	127-DHD3.5	11.5	127-1	4.5	no
		127-DHD3.5-2	135		15.7			127-2	4.2	yes
140	10	140-DHD4-1	161	97	20.5	140-DHD4	16	140-1	5	no
		140-DHD4-2	148		20.3			140-2	4.8	yes
146	10	146-DHD4-1	165	110	22.5	146-DHD4	16	146-1	6.5	no
		146-DHD4-2	154		22.2			146-2	6.2	yes
168	12	168-DHD5-1	188	127	27	168-DHD5	20	168-1	7	no
		168-DHD5-2	180		26.8			168-2	6.8	yes
178	12.7	178-DHD5-1	196	131	32.5	178-DHD5	24	178-1	8.5	no
		178-DHD5-2	185		32.1			178-2	8.1	yes
194	12.7	194-DHD6-1	214	145	42.5	194-DHD6	32.5	194-1	10	no
		194-DHD6-2	202		42			194-2	9.5	yes
219	12.7	219-DHD6-1	243	170	58	219-DHD6	44.4	219-1	13.6	no
		219-DHD6-2	228		57.2			219-2	12.8	yes

 

Packaging & Shipping

 

Company Profile

 

FAQ

1. Are you exact manufacturer or just trading company?
We are both,we have our own factory. And also have many long-relationship factories.

2.What is your minimum order quantity?
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.

We are welcome your sample order to testing our quality.

3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.

As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always

in the material research and drawing design of drilling tools for 25 years.And he had designed

the world's biggest top hammer bit and DTH hammer bit, highly praised by the users.

4. How about Packing
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation.

Also, we can customize package according to your special requests.

5. How about the delivery time?
It depends, generally it takes about 15-25day. If have stocks, Usually only 5-10 days if in stock.

6. Can I have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.