Hwf, Pwf Double Tube Core Barrel

• Feature: 4-Stroke
• Bit Diameter(mm): 300
• Style: Front - Earth Auger
• Power Source: Hydraulic
• Sale: Core Barrels for Sale
• Diamond: Diamond Core Barrel
• Model NO.: Hwf, Pwf
• Type: Core Barrel Bits
• Drilling: Core Barrel Drilling
• China: China Double Tube Core Barrel
• Supplier: China Core Barrels Supplier
• Brand: Core Barrel Direct From Roschen
• Parts: Conventional Core Barrel Assemblies
• Item: Core Barrels and Core Diamond Drill Bits
• Manufacturer: China Core Barrel Manufacturer
• Transport Package: Wooden Box
• Specification: 100
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143320
• Production Capacity: 300

Product Description

ROSCHEN manufacture differenct types of the core barrels with high quality. 

Size Available:

B76 core barrel, B86 core barrle, B101 core barrel, B131 core barrel, B146 core barrel
BQ core barrel NQ core barrel, HQ core barrel PQ core barrrel, NQ3 core barrel, HQ3 core barrel, PQ3 core barrel
TT-46 core barrel TT56 core barrel
T2-56 core barrel, T2-66 core barrel, T2-76 core barrel, T2-86 core barrel, T2-101 core barrel
T6-76 core barrel T6-86 core barrel T6-101 core barrel T6-116 core barrel T6-131 core barrel T6-131 core barrel
NMLC core barrel, HMLC core barrel
HWF core barrel, PWF core barrel
NWG core barrel, HWG core barrel
LTK48 core barrel
M101 core barrel
412 F core barrel

Chinese Standard: Wireline 56, wireline 59, wireline 75, wireline 91...

Wireline drilling is the special method of removing the core. When the driller wants to remove core from a conventional core drill, the entire core barrel has to be removed from the hole. This is time-consuming, as each rod has to be removed one at a time. With wireline drilling, a barrel of core can be removed from the bottom of the hole without removing the rod string. When the driller wants to remove the core, an overshot is lowered on the end of a wireline. The overshot attaches to the back of the core barrel inner tube and the wireline is pulled back and the inner tube disengages itself from the barrel.
 

Standard "Q" wire line bit sizes
Size	Hole (outside) diameter, mm	Core (inside) diameter, mm
AQ	48	27
BQ	60	36.5
NQ	75.7	47.6
HQ	96	63.5
PQ	122.6	85
CHD 76	75.7	43.5
CHD 101	101.3	63.5
CHD 134	134	85

 

Q Series Wireline Core Barrel System Sizes
SIZE	CORE Ø	HOLE Ø
AQTK	35.5 mm (1-3/8 in)	48 mm (1-7/8 in)
BQ	36.4 mm (1-7/16 in)	60 mm (2-3/8 in)
BQTK	40.7 mm (1-5/8 in)	60 mm (2-3/8 in)
NQ	47.6 mm (1-7/8 in)	75.7 mm (3 in)
NQTK (NQ2")	50.6 mm (2 in)	75.7 mm (3 in)
NQ3	45 mm (1-3/8 in)	75.7 mm (3 in)
HQ	63.5 mm (2-1/2 in)	96 mm (3-3/8 in)
HQ3	61.1 mm (2-3/8 in)	96 mm (3-3/8 in)
PQ	85 mm (3-3/8 in)	122.6 mm (4-7/8 in)
PQ3	83 mm (3-1/4 in)	122.6 mm (4-7/8 in)

 

Roschen Core Barrel System Sizes
SYSTEM	CORE Ø		HOLE Ø
	mm	in	mm	in
A	48,0	1.89	27,0	1.06
B	59,9	2.36	36,4	1.43
N	75,7	2.98	47,6	1.88
H	96,1	3.78	63,5	2.5
P	122,6	4.83	85,0	3.35

FAQ 

Q: Are you a manufacturer or trading company ?
A: We are a specialized manufacturer.

Q: How about the delivery terms ?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount ?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.


Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
 



For more information please contact:


 
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
 
  
Website: http://roschen.en.made-in-china.com 

 ; http://roschen.en.made-in-china.com