LH20T2S Road Milling Cutting Picks for Cement Construction

External Dimensions:

Overall Height: 88.6mm

Installation Height: 43.8mm

Installation Diameter: 20mm

Maximum Tooth Outer Diameter: 35mm

Fireproofing Treatment on Finished Product

Material Specifications:

Alloy Head Material: High-quality tungsten carbide cemented carbide

Tooth Body: High-strength alloy steel forging, 42CrMO special steel, cold precision forged in one piece

Wear-resistant Ring on Tooth Head: Laser 3D printed ceramic material, hardness > HV0.21400 (equivalent to HRC90), far exceeding the hardness of similar cutting teeth (HRC52-60), increasing wear life by more than 100%.

Processing Technology:

Standardized, assembly line production: Includes heat treatment processes such as brazing, quenching, and tempering, as well as laser 3D printing technology.

Alloy Characteristics: Utilizing the world's most advanced coarse-grained tungsten carbide alloy with a micro-aging dispersion strengthening design, the carbide tip boasts a hardness value exceeding HRA86 (hardness > HV0.22300) and a bending compressive strength > 3500 MPa; it also exhibits superior thermal stability.

Tooth Manufacturing Process: The tooth body exhibits impact toughness > 80J and bending strength ≥ 2100 N/mm², achieved through a quenched and tempered deep cryogenic heat treatment process, maintaining high hardness while possessing excellent toughness.

Welding Process: The alloy brazing interface strength > 250 MPa, employing a self-developed precipitation-strengthened copper-based brazing filler metal, resulting in a more reliable bond between the alloy and the matrix.

Product Process Characteristics:

1. New 3D Printing Technology: LEMHUNTER's "Freeform" 3D printing technology, developed for defense needs, is used in the manufacture of cutting teeth. It is the only manufacturer internationally to utilize laser 3D printing technology in cutting tooth production. Employing ultra-hard "Superhard" technology and ultra-wear-resistant "SuperWear" materials, its lifespan is exponentially longer than traditionally manufactured cutting teeth.

2. The alloy utilizes the world's most advanced coarse-grained tungsten carbide alloy with a microscopic aging dispersion strengthening design, significantly extending its lifespan compared to traditional alloys. The tooth body uses military-grade high-purity matrix materials and undergoes an additional "quenching and tempering" special heat treatment process, resulting in excellent combined high hardness and high toughness, making it wear-resistant and less prone to breakage.

3. Based on 3D printing and combined with independently developed composite materials, the company's cutting teeth have significantly improved service life compared to leading international brands and are internationally leading in spark control, enhancing operational safety.

4. After more than twenty years of material research, the company has perfectly solved the drawback of metal tooth bodies being not wear-resistant, thus perfectly matching the uniform wear of the alloy and preventing premature breakage and fracture of the alloy due to excessive tooth wear.

5. The independently developed and rationally designed tooth profile perfectly matches various equipment, achieving perfect self-rotation, reducing uneven wear and tooth breakage, improving mining efficiency, and protecting equipment from damage.

6. Hengpu's three-dimensional biomimetic structure "3D-B&F" technology, with its adaptive rotation function, prevents uneven wear. The company's cutting teeth have an ultra-long service life, saving time and mining costs and increasing the mining rate per unit time.