46" Back Reamer Directional Drilling No Dig HDD Hole Opener

Basic Information
Place of Origin: HeBei China
Brand Name: Pangolin
Price: Negotiation
Delivery Time: 5-15 work day
Payment Terms: T/T
Detail Information
Heat Treatment: Heat Treated Processing Type: Forging
Color: Customer's Requirement Weight: 200kg-400kg
Application: HDD Reamer Advantage: High Performance Cost Ratio
High Light:

No Dig HDD Hole Opener


back reamer directional drilling


46" Back Reamer Directional Drilling

Product Description

Hard Rock Drilling Horizontal No Dig HDD Hole Opener

HDD Hole Opener for Hard Rock Drilling Horizontal No - Dig



The fixed diameter hole opener is made of tough heat-treated alloy steel for maximum strength. The cutter arm is equipped with a detachable cutter and is hard-faced welded on the valve body. There are three types to choose from: SM type is used for soft to medium formations, MH type is used for medium to hard formations, and XH type is used for hard formations. The hole opener has three or six nozzles, which can be replaced, so that the jet can quickly clean the enlarged hole.




1. Suitable for medium to medium hard formations with high compression resistance (hard shale, sand body, etc.)
2. The bit bearing is an unsealed roller bearing.
3. The edge of the shirt is welded and the carbide insert is pressed into the outer diameter of the head.




1. Cutting structure
In view of the different cutting characteristics of the inserts in different parts of the cone, the cone inserts are placed in the permanent contact area, and the wedge inserts are placed in the alternating contact area, which greatly improves the drilling efficiency. The diamond insert is provided in the permanent contact area of the cone to improve the wear resistance of the cutting structure, and the insert is worn seriously in this area. Place tungsten carbide inserts on the top surface of the cone to protect the cone from abrasion.

2. Bearing structure
High-precision journal bearings. The ball locks the cone. Hard surface bearing surface. Tapered bearings with friction-reducing alloys. Improve the wear resistance and bite of the bearing. Compared with the tri-cone bit, the leg bearing of the tri-cone bit is larger, which can withstand higher drilling weight and higher reliability.



Product parameters


Product name HDD hole opener
Usage horizontal directional drilling
Application formation medium hard with relatively higher compressive strength and hard stringers, such as hard shale, sandstone and limestone, etc.
Weight 200kg-400kg
Machine Type Drilling Equipment
Heat treatment Heat Treated
Processing Type Forging
Color Customer's Requirement



Reamer Size

Cone size and # of Cones Threads
Cone size #of Cones Cone size # of Cones
10“ 6 1/2” 3     NC23 NC26(2 3/8IF) D50 D80 NC31(2 7/8IF) NC38(3 1/2IF)
12“ 8 1/2” 3    





8 1/2”or 9 1/2”


For 8 1/2”-9 1/2” Cone:

NC23 NC26(2 3/8”IF) D50 D80 NC31(2 7/8”IF) NC38(3 1/2”IF)


For 12 1/4”-13 5/8” Cone:

4”IF 4 1/2IF 5 1/2FH 6 5/8FH

18”-20“ 5 12 1/4” 4
22”-24“ 6



12 1/4” or 13 5/8”

28”-30” 7 6
32”-34” 8 7
36“-38” 9 8
40“-42” 10 9
44“-46” 11 10
48”-50” 12-13 11




Used in

Apply to Construction, Water Drilling, Mining, Horizontal Directional Drilling, Geothermal and Environ-mental.



Pic Show


46" Back Reamer Directional Drilling No Dig HDD Hole Opener 0



Our 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.
We are factory direct sales, large inventory, fast delivery, high quality.



Drill bit hole opener HDD drilling reamer positioning drilling tool 1


Pangolin (China) Construction Machinery Co., Ltd. is a drill manufacturer with complete testing equipment and strong technical force. Our products have a wide range, high quality, reasonable price, and timely delivery, which are widely used in oilfields, drilling, non-excavation fields and other industries. Our products are widely recognized and trusted by users, and can meet the ever-changing economic and social needs. To
We welcome new and old customers from all walks of life to contact us for future business relations and mutual success!


Drill bit hole opener HDD drilling reamer positioning drilling tool 2

Contact Details
Sophie Zhang

Phone Number : +86-13231687581

WhatsApp : +8613231687581