12"14"18"22"24" 28"32"36" Rock/Fluted/Expanding/Flycut/Barrel Tool Back Reamer for HDD Horizontal Directional Drilling Machine/Rig

• Customization: Available
• After-sales Service: Spare Parts Warranty
• Warranty: 1 Year
• Model NO.: 24"
• Condition: New
• Drill Hole Diameter: 100-150mm
• Drill Hole Depth: 10-30m
• Bit Type: Cone Bit
• Drilling Way: Rotary
• Type: Crawler
• Application 1: Telecom Fiber Laying
• Application 2: Sewage Pipe Laying
• Application 3: Oil Pipe Laying
• Working Type: Trenchless
• Local Service: Some Country Available
• Shipping Way 1: 45ton Below by Container
• Shipping Way 2: 68ton Above by Rollroll
• Transport Package: Bulk
• Specification: Horizontal
• Trademark: YICHAO
• Origin: China
• HS Code: 8430691900
• Production Capacity: 100/Month

Product Description

1. Introduction of company
Our company is a modern technical comprehensive enterprise integrating R & D, production, sales, leasing, maintenance and technical guidance. It is a professional manufacturer of mud motors (screw drilling tools), rock reamers, probe cavities and drilling tools. The company regards quality as life. It owns equipment such as CNC lathes, pipe thread lathes, universal horizontal milling machines and other non-destructive testing machines and tools to ensure the quality and performance of the products. Our company has a strong after-sales service team, strong scientific research strength and rich technical experience. It is diligent in innovation and courageous, based on the "customer first" principle, with integrity, professionalism, innovation and pragmatic business philosophy, and first-class management, first-class design, first-class manufacturing technology, first-class product cost-effectiveness and professional after-sales service provide the best service and high-quality products for colleagues in the industry.
We will continue to follow the principle of taking science and technology as the guide, focusing on knowledge, talent, and people, and continue to develop new products to meet market needs. Our company is willing to cooperate sincerely with friends at home and abroad for common development!

Rock Reamer / Hole Opener Introduction
Horizontal Hole Openers, also known as HDD Reamers, are used to enlarge the pilot hole in Horizontal Directional Drilling (HDD) - HDD is used when trenching and excavating is not practical. This drilling technology allows for a steerable trenchless way to drill underground.There are three stages, the first stage is to drill a small
diameter pilot hole. The second stage is enlarge the hole with a larger diameter cutting tool called an HDD
Reamer, Rock Reamer or Hole Opener. The third stage is inserting the casing pipe or other product
into the enlarged hole.

hole opener'OD are between 220mm to 1800mm.
The suitable tooth type will be chosen,bearing structure, sealing type and angle of inclination of paws.water cutting, good sand returning can efctivele reduce sand gathering. Unique anti-faling design of cones prevent the accident caused by falling cones which is leaded by bearing damage. Perfect welding process prevents the damage to sealing and bearing system because of over beat.The bit body adopts spiral design with good stabilizing and sand returning performance to improve hole opening speed reducing repeating rock breaking of cones.
Advantage
• Available roller cone with sealed bearing or Metal sealed bearing
• All our hole openers and rock reamers can be supplied with a widerange of cutters to deal withsoft rock
like limestone or sandstone, rignt up to hard formation bits capable of drilling in Granite and Basalt.
• Correct cutter selection allows higher productivity and tool life. The nozzles can be designed according
to different reamer size on different drilling conditions
• Our rock reamer can be custom build with 3, 4, 5, or more rollers, depend on your pullback power and
the diameter of the pipe. Our hole openers are generally fitted with API threads, IF, FH, etc.
 

Technical specifications and parameters
Hole open  diameter	Qty of  cutters	Min.Pilot  hole	Fishing neek  diameter	I.D.	Top Connection (Pin)	Bottom  Connection (Box)	Overall length
12 1/4"	3	8 1/2"	8"	1 1/2"	6 5/8REG	6 5/8REG	55"
16"	3	10"	9 1/2"	2 1/4"	7 5/8REG	6 5/8REG	59"
17 1/2"	3	10"	9 1/2"	2 1/4"	7 5/8REG	6 5/8REG	59"
22"	3	12 3/4"	9 1/2"	2 1/3"	7 5/8REG	6 5/8REG	69"
23"	3	12 3/4"	9 1/2"	3"	7 5/8REG	6 5/8REG	69"
24"	3	14"	10"	3"	7 5/8REG	7 5/8REG	69"
26"	3	17 1/2"	10"	3"	7 5/8REG	7 5/8REG	69"
36"	4	26"	10"	3 1/2"	7 5/8REG	7 5/8REG	87"