Active Member
|
[China]
Address: Room 2522&2523, Block 10, Wujiangtianjie North, No.48, Qutang Road, Yuhua District, Qutang Road, Yuhua District, Changsha, Hunan, China
Contact name:Michael Shan
Hunan Kellyway Machinery Co., Ltd. |
|
|
Reliable Bore Hole Drill Bit Roller Bit for Rotary Drilling Tools Core Barrel in Bored Piles
1.Cutting Structure
The wear-resistance of the teeth is enhanced with premium tungsten
carbide hardfacing on the tooth surfaces for the steel tooth
bit.The durability of premium tungsten carbide inserts is improved
with new formulas and new techniques for insert bit
2.Gauge Structure
Multiple gague protection with gauge trimmers on the heel and gauge
inserts on the gauge surface of the cone,tungsten carbide inserts
and hardfacing on the shirttail increases gauge holding capacity
and bearing life
3.Bearing Structure
High precision journal bearing with two thrust faces,Balls lock the
cone.Hardfaced head bearing surface.Cone bearing inlaid with
friction-reducing alloy and then silver-plated.Abrasion resistance
and seizure of the bearing are improved.and suitable for high
rotary speed
4.Seal and Lubrication
The advanced metal seal package consists of two metal seals and two
elastic energizers.Compressed energizers ensure good contact being
kept on two sealing surfaces of metal rings by elastic force,and
achieves the bearing seal.In the drilling,metal seals are
relatively dynamic,and the energizers are static.This will improve
the reliability and durability of bearing seal.The pressure
compensator system and advanced grease can greatly increase the
lubricating reliability.
Size | TC Bit Dia.(mm) | TC Bit No. (PCS) | TC Bit Height(mm) | Dia. of Roller(mm) | Height of Roller(mm) | Remarks |
8-1/2’ | 13 | 42 | 7 | 134 | 83 | Both Welding and holder type are available |
13 | 55 | 7 | 130 | 83 | ||
14 | 42 | 9 | 138 | 83 | ||
14 | 55 | 9 | 134 | 83 | ||
15 | 45 | 8 | 141 | 83 | ||
10-1/2’ | 17 | 50 | 11 | 170 | 98 | |
12-1/4 | 14 | 75 | 9 | 186 | 130 |
Introduction:
With 10 years’ experience on piling works, Kellyway team is
dedicated to design, manufacture and supply top cost-perforemance roller bits for hard rocks.
1. Modern design special for foundation works;
2. Material from top suppliers;
3. Professional and modern production line;
4. With built-in grease supplement system;
5. Top level welding and heat treatment technology.
Hunan Kellyway Machinery Co., Ltd was founded by the main team which is with up to ten years’ experience on foundation works and piling machinery. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools and Drilling teeth. Kellyway is working on provide the one-stop piling solutions for our domestic and global customers and we are dedicated to be your best partner for your piling works from China.
Q1. How long have you been in this business?
Over 10 years experience.
Q2. Do you accept sample order?
Yes sure, please contact us for details.
Q3. How about your after-sales service?
We offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q4. How does your company control the quality?
Quality first. In order to guarantee high quality for our products.
Kellyway makes a serious inspection for all products and raw materials in strict procedure.
Our service
1. Prompt delivery
2. Best after-sale service
3. The products could be produce according to customer's
requirements
4. Inquiries are typically replyed within 24 hours
