Customized cemented carbide shield cutter for tunnel boring machine AIA-1 manufacturer from China Zhuzhou Mingri Cemented Carbide Co., Ltd.

Customized cemented carbide shield cutter for tunnel boring machine

Place of Origin:

Guangdong, China (Mainland)


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Product Detail

Model No.: AIA-1

Customized cemented carbide shield cutter for tunnel boring machine D

Customized cemented carbide shield cutter for tunnel boring machine

Description:

A tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section
through a variety of soil and rock strata. There have a very big circle blade in the front of tunnel
boring machine equipped with various kinds of cutters, in order to promote stable and longer lasting
life of application, we have research and developed special tungsten carbide materials suited to
your application.The TBM technology is mainly used in underground ming and traffic tunnelling
like metro, railway and road tunneling.

Grade and Applications:
Other grades may be offered by customers' requirements

Grade	Density	T.R.S	Hardness	Performance & application recommended

	g/cm3	MPα	HRA
MK4	15.1	1800	90	Mainly used as small buttons for percussion bits to cut soft and
				medium hard formations.
MK6	14.9	2000	90.5	For coring crowns, electric coal drill bits, coal cutting picks, oil
				cone bits and scraping knife bits, usd in geological prospecting,
				coal mining and oil well boring.
MK8	14.7	2400	89.7	For coring crowns, electric coal drill bits, coal cutting picks, cone
				drill bits and scraping knife bits, used in geological prospecting,
				coal mining and oil well boring.
MK10	14.7	2450	88.5	Mostly used as the buttons of small and mediumsized percussion
				bits and as the inserts of rotary prospecting bits to cut soft and
				medium hard formations.
MK15	14.6	2450	87.8	Suitable to strips, conical buttons for rotary percussion-resistant,
				geological prospecting buttons, cut soft and medium hard formations.
MK20	14.4	2550	87	Primarily for the buttons and inserts of rotary percussion bits to cut
				medium-hard and hard formations.
MK25	14.5	2600	87.5	Primarily for the buttons and inserts of rotary percussion bits to cut
				medium hard and very hard formations.
MK30	14.4	2600	87	Largely for the inserts and buttons of percussion bits and tricone
				bits to cut medium-hard, hard, and very hard formations.
MK40	14.2	2650	86.5	Predominatly for the buttons of tricone bits and inserts of rotary
				percussion bits to cut hard and vey hard formations.
MK50	14	2700	86	For oil cone drill bits, for medium soft and medium -hard rocks.
MK60	14	2500	87	Good strength and less wear resistance, for bits of rotary hammer
				rock drills and heavy rock drills, for hard and very hard rocks.

Competitive Advantage:

1. Expertise in tungsten carbide for 15 years, we can assit you in choosing the optimum grade for your job.
2. We produce only with advanced tungsten carbide material to ensure high level of quality
3. You're guarranteed to find the right one for your application with various grade and types available
4. All our product are in-house made under strict quality controlled conditions.

1. All raw materials are tested in terms of density, hardness and T.R.S before use.
2. Every piece of product goes through in-process and final inspection.
3. Every batch of product can be traced.
4. 100% of our products pass final inspection before being put on the market.