Our company adhere to the business philosophy combining specialization and diversification , advance continuous improvement and development of the industrial chain. Currently we have eight subsidiary companies:

1.Shandong Tiankai Tungsten Industry Co., Ltd.- -Alloy production

2.Liaocheng Tianyi Road Machinery Co., Ltd. - - Road milling picks production

3.Shandong Tianshan Rock Drilling Tools Co., Ltd. - -Rock drilling tools production

4.Shandong Tianyin Mold Co., Ltd. - -Mold, shield tail brush production

5.Shenzhen Tiano Shield Engineering Co., Ltd. -- Shield construction consulting, maintenance and improvement of the shield machine.

6.Shandong Tiangong Tool Sales Co., Ltd.--Domestic market sales

7.Techgong(Shanghai) International Trade Co., Ltd.--Overseas market except Australia

8.Techgong(australia) Mining & Engineering Services Pty Ltd. - Australia and New Zealand market sales.

Company quality principle:             

Quality is our life;             Innovation is the driving force;             Continuous improvement for customer satisfaction!

The direct management from our president of the technical quality department constitutes a whole process, more extensive quality management system covering top management to front-line staff . The factory has a series of professional testing equipment, including spectrometer, materials testing machine, cobalt magnetic measuring instrument,etc. and periodically test the equipment according to different proof standards .

Strict quality control process:

Our company execute the ISO9000 quality management system, and operate strict quality control of every production process from raw material to packaging and storage. Each shield tool our factory manufactured has the serial number, so we can trace back to the raw material batches, process parameters and even operating persons. So do our picks!

Our former chairman Liu Yuhai who has been engaged in machinery manufacturing technology research area for more than forty years, is now being hired as our chief engineer. He enjoyed remarkable achievements including areas of wrenches, drilling tools, rock drilling tools,picks ,etc.Until 2010,he has won 21 national patents, including Shield machine tool class 11 items, mining picks class 10 items.

Our company employ domestic and foreign experts as consultants in order to learn advanced technology experience from different Japan, Germany,etc.

Technological achievements:

1.55 patents, including numerous invention patents, such as mosaic alloy strip cutter ring, new type sliding bearing shield machine roller cutter rotary structure, surfacing carbide cutter ring.

2.More than 10 scientific and technological progress award; strengthening pre-cutting bit industrialization projects listed in the National Torch Program.

3.Since 2010, 9 scientific and technological achievements have been identified by national technology department, amongst 7 items reached the international advanced level, 2 items reached domestic leading level.

4.In October 2011,our company was identified as "National High-Tech Enterprise" 5.Our company drafted shield machine cutting tool TB / T 11861-2014 industry standard , implemented since October 1, 2014.

R&D: 1.T ensure technical innovation, our company established the technology center , research test center and purchased advanced testing equipments, also we organized market demanding investigation executed by our backbone staff as the central member from mechanical design, crafts and metal heat treatment department ,then we can carry out technological innovation design accordingly. 3.Cooperated with the domestic top universities and founded Techgong Shield Research Institute, regular annual R & D investment cost is up to 3% to 4% sales income

Good quality civil engineering step shank drill bit

Techgong can supply all kinds of round shank bits, such as B16, B43HDK12, B40HDK12, B47K19H, B47K22H, B47K12/60, B47K19/,

W4ER, W5ER, W5EHR, W6R, W6HR, W6ER, W6EHR, W6SR, W6SGR, W7ER, W7EHR, W7EHLL, W8EHR, W1-10R, W1-13R, W1-15R

We also can make all kinds of conical picks  according to your drawings or samples.

 
They are widely used in foundation drilling, rotary drilling, trenching, tunneling, mining, etc.

Our products are in high quality, reasonable price and long service time.

They have been exported to Australia, Brazil, Canada, Japan, USA, Korea, Middle East, etc

*Factory, specializing in manufacturing mining cutter bits for more than 10 years.

* Strong technological support,Research and Development Department, cooperate with professional universities.

*long service life-steel body, tungsten carbide tip, itss forging and heat treating techniques allows
 Techgong bits service life 4-5 times longer than common bits.

*high feed rate- the long service life allows it save time and high work efficiency

*A whole set of advanced mechanical processing facility for forging and heat treatment.

*Strict quality control management system, including advanced inspection equipments & a professional team

 for inspection.

Packaging
Rust-proof packaging,plastic pale,wooden box,standard seaworthy package.

Or as per customer’s needs.
Lead time: 15 days on average, mainly depends on your order quantity.  

Shipping
*We accept different shipping lane.

 Air express by DHL, FEDEX, TNT, UPS, EMS...
*The product delivery will be strictly on time.