1308 Series

Coalfield geological composite bit, specially designed for drilling through coal seams and sedimentary rock formations, is manufactured by sintering a high‑strength polycrystalline diamond layer bonded to a cemented carbide substrate. This product combines the wear resistance of diamond with the impact toughness of alloy, delivering high drilling efficiency and long service life in coal‑bearing strata while effectively handling challenging conditions such as interbedded shale layers and alternating soft–hard formations. It is ideally suited for underground gas drainage, hydrogeological drilling, and coalfield geological exploration, significantly enhancing overall drilling performance and cost‑effectiveness.

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1308 Series

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Product Introduction

Main uses:

Mining tools such as anchor‑bolt drill bits for coal‑field roadway support, core‑drilling bits for geological exploration, and non‑core‑drilling bits.

The product combines the wear resistance of diamond with the impact toughness of alloy, delivering high drilling efficiency and long service life in coal-bearing formations while effectively addressing challenging conditions such as interbedded shale layers and alternating soft–hard strata. It is well suited for underground gas drainage, hydrogeological drilling, and coalfield geological exploration, significantly enhancing overall drilling performance.

Main Product Specifications

Type	Specification and Model	Product Introduction
1005 Series	M1005VH	The diamond layer is slightly curved, with uniform impact resistance and wear resistance, and exhibits good stability.
	M1005VHAJ	The diamond segment features a ring‑shaped design, providing excellent impact toughness and rapid penetration.
	M1005VHATML	The diamond segment features a specially designed geometry, offering superior wear resistance and making it well-suited for drilling through complex rock formations.
1305 Series	M1305H	The diamond surface features an arc-shaped design; this cost-effective spherical lens offers excellent product quality and stability, with a wide range of applications.
	M1305P	The design of chamfers on the outer edge of the diamond layer enhances sharpness and improves impact resistance.
	S1305HAJ	The diamond‑shaped spherical inclusion features an arc‑shaped design, which enhances heat dissipation, improves thermal stability, and extends its service life.
1308 Series	L1308H	The diamond surface features an arc-shaped design; this cost-effective spherical lens delivers excellent product quality and stability, making it suitable for a wide range of applications.
	L1308P	Standard flat surface, high wear-resistant product
	1308T30	The cutting edge is ground around the perimeter, and a proprietary composite manufacturing process elevates its impact resistance to world‑class levels, making it ideally suited for a wide range of challenging ultra‑hard rock formations.
	S1308HA	The diamond‑shaped spherical inclusion features an arc‑shaped design, which enhances heat dissipation, improves thermal stability, and extends its service life.
	S1308HI	The diamond layer has a large curvature, good thermal dissipation, and high impact toughness.
	S1308PAM-L	The diamond portion is ground into an arc shape to enhance its sharpness and durability.

Note: Other product specifications can be customized to meet customer requirements.

Frequently Asked Questions

We offer free consultations to help resolve your issues.

What are the applications of functional diamond in the fields of thermal management and optics?

Diamond’s thermal conductivity is approximately five times that of copper and eight times that of aluminum, making it one of the materials with the best thermal performance currently known. The company’s functional diamond single crystals can be used in cutting-edge applications such as heat‑dissipating substrates for high‑power semiconductor lasers and 5G RF devices, optical windows for high‑power laser systems, and infrared thermal imaging systems.

What is the difference between lab-grown diamonds and natural diamonds?

Lab-grown diamonds are synthesized in a laboratory setting by replicating the natural diamond‑forming process using high‑pressure high‑temperature (HPHT) or chemical vapor deposition (CVD) techniques. They are chemically, structurally, optically, and physically identical to natural diamonds, with only subtle differences at the atomic level. Lab-grown diamonds offer advantages such as sustainability, traceability, and conflict‑free sourcing, while also commanding more competitive pricing.

Does the company support export operations? What certifications does it hold?

The company supports export operations, with a business scope that encompasses the import and export of goods. It has obtained ISO 9001 certification for its quality management system, ISO 14001 certification for its environmental management system, and ISO 45001 certification for its occupational health and safety management system. Additionally, the company has been recognized as a National High-Tech Enterprise, a “Specialized, Refined, Distinctive, and Innovative” SME in Henan Province, and a recipient of the Second Prize of the Henan Provincial Science and Technology Progress Award, among other prestigious accolades. Its products meet international standards.

Could you provide samples for testing? How do I apply?

Certainly. The company offers sample‑testing services to new customers, enabling them to evaluate product performance. Customers can submit their requests via the “Sample Request” page on our website or contact our sales team directly to discuss a customized testing plan. Sample dispatch takes 1–3 business days, and the samples are provided free of charge; customers are responsible only for the courier fees.

What are the product’s minimum order quantity (MOQ) and lead time?

The minimum order quantity for industrial diamond composite inserts and cutting tools varies depending on the specific specifications. Standard products are kept in ample stock, with a typical delivery lead time of 7–15 business days; custom‑made items require confirmation of the exact delivery schedule based on order volume and manufacturing requirements. For lab‑grown diamond products, in‑stock items are usually shipped within 3–5 days, while custom‑made orders take 7–15 days to ship.

What advantages do polycrystalline diamond compact (PDC), polycrystalline diamond (PCD), and polycrystalline cubic boron nitride (PCBN) inserts offer compared to similar products?

The company employs the world’s first 1,200-mm‑bore six‑face hydraulic press and advanced synthesis technology. Its products outperform comparable offerings by more than 20% in three key performance metrics—wear resistance, impact toughness, and high‑temperature stability—and boast a 25% advantage in dimensional accuracy. This enables a substantial increase in drill‑bit life and machining efficiency while reducing customers’ overall operating costs.

Which industries do your company’s products serve?

The company’s products are widely used in cutting-edge fields such as mining, geological exploration, oil drilling and production, jewelry and fine jewelry, precision machining, semiconductor thermal management, optical windows, and aerospace, serving multiple industries including energy exploration, high-end manufacturing, and consumer electronics.

What are your company’s main products?

The company focuses on research, development, and application across the entire spectrum of superhard materials, with its core business spanning two major segments: first, superhard composite materials, producing 3 million diamond‑based composite inserts annually, primarily including mining‑grade PDC, cutting‑tool PCD, cubic boron nitride PCBN, and specialized composites for oil and gas drilling; second, gem‑quality diamonds, encompassing colorless large single crystals, colored lab‑grown diamonds, and functional diamond single crystals, with the capability to synthesize lab‑grown diamonds up to 200 carats.

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Contact phone number

+86-373-8657779

Contact email

hnlcxcl@diamondhnlc.com

1308T30PB

None

Solution

It serves core industrial sectors such as coalfield mining, geological exploration, oil extraction, and mechanical machining.

Mining sector

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