Company profile
Founded in 2000,HUNAN INJECTION HIGH TECHNOLOGY CO., LTD mainly focuses on R&D, manufacturing and sales of all kinds of carbide cutter picks and mechanical components for engineering construction. Taking advantages of advanced powder metallurgy production technology in Central South University, Hunan Injection is experienced in R&D and practice MIM technology. Hunan Injection has a series of advanced production equipment and testing equipment, such as low pressure vacuum furnace, cold isostatic press, vacuum vertical mixer, coercivity tester, cobalt magnetic satiator, high magnification microscope. With strong R&D, advanced manufacturing level, complete quality control system, we can guarantee our products with excellent quality, and we are welcomed by more and more home internal and overseas customers.
| Application area | Teeth type | Teeth Sharp | Teeth code | Application condition |
| Engineering construction | Pavement milling machine teeth | Cap | PM | Asphalt road |
| Colume | PZ | Cement road | ||
| Rotary Digging machine teeth | Rotary teeth | WG | Construction &Building | |
| Tunnel boring machine teeth | Driving teeth | YJ | Hard rock tunnel |
Milling tooth
Parameter:Cobalt 6,Coarse grain size,Hardness in 97.9HRA,Density 14.95cm3;Bending strength 2400n/mm2,Cap (Model:SDB10P,asphalt pavement)
Column(Model:SDB20P,cement pavement)
Rotary tooth
Parameter:Cobalt 8,Grain size 8 (extra thick),Hardness in 85.5-86.5HRA,Density 14.6-14.8cm3,Bending strength 2000n/mm2,Coercive force 38-60,Relative magnetic saturation strength above 88%
10W alloy(Model:SDB10W,Compressive strength within 100 MPa)
20W alloy(Model:SDB20W,Compressive strength within 120 MPa)
Driving tooth
Parameter:Cobalt 10, Coarse grain size,Hardness in 86.0HRA,Density 14.45cm3;Bending strength2400n/mm2,
Model:SDB10J
Performance:Suitable for hard rock, hard rock tunnel in granite, quartzite, marble, gneiss and other super hard rock)
Milling tooth
Parameter: Cobalt 6,Coarse grain size,Hardness in 97.9HRA,Density 14.95cm3;Bending strength 2400n/mm2,
Cap (Model:SDB10P,asphalt pavement)
Column (Model:SDB20P,cement pavement)
Rotary tooth
Parameter:Cobalt 8,Grain size 8 (extra thick),Hardness in 85.5-86.5HRA,Density 14.6-14.8cm3,
Bending strength 2000n/mm2,Coercive force 38-60,Relative magnetic saturation strength above 88%
10W alloy(Model:SDB10W,Compressive strength within 100 MPa)
20W alloy(Model:SDB20W,Compressive strength within 120 MPa)
Driving tooth
Parameter:Cobalt 10, Coarse grain size,Hardness in 86.0HRA,Density 14.45cm3;Bending strength2400n/mm2,
Model:SDB10J
Performance:Suitable for hard rock, hard rock tunnel in granite, quartzite, marble, gneiss and other super hard rock)