The extreme hardness, wear resistance, and thermal conductivity of diamond make it an ideal cutting tool material. However, individual diamond crystals cleave quite easily when struck parallel to certain planes (the process used to facet diamond gemstones takes advantage of these relatively weak planes). As a result, individual diamond crystals do not make good cutting tools—unless they are meticulously oriented.
Diamond sintering overcomes the problem of weak planes in diamond gemstones by bonding a mass of small diamond particles onto a larger, coherent structure. Sintered diamond provides greater toughness and durability than single crystals because the individual crystals in a sintered body are randomly oriented. This prevents cracks from propagating along the weak planes where traditional diamond crystals cleave most easily. Sintered diamonds also provide more uniform wear than a single crystal, while maintaining similar thermal conductivity and hardness properties. All of these factors combine to make sintered diamond the preferred material for cutting rock.
At us synthetic, the sintering process begins with premium-grade diamond crystals. These crystals are sintered together at temperatures of approximately 1400°C and pressures of around 60 kbar in the presence of a liquid metal catalyst. Typically, the diamond is bonded to a tungsten carbide substrate during the same high-temperature, high-pressure process. This sintered diamond and tungsten carbide composite is known in the industry as a polycrystalline diamond cutter (PDC).
| Type | Specification(mm) | Bit Pressure(Kg) | Rotate Speed (rpm) |
Pump Capacity(1/min) |
| 1 | Φ28 | 300-700 | 300-350 | 150-200 |
| 2 | Φ30 | 300-700 | 300-350 | 150-200 |
| 3 | Φ32 | 300-700 | 300-350 | 150-200 |
| 4 | Φ48 | 300-700 | 300-350 | 120-160 |
| 5 | Φ56 | 320-800 | 250-350 | 130-180 |
| 6 | Φ75 | 480-1200 | 200-300 | 150-200 |
| 7 | Φ94 | 640-1600 | 150-250 | 200-250 |
| 8 | Φ110 | 880-2200 | 120-200 | 200-300 |
| 9 | Φ152 | 1500-3000 | 100-200 | 500-850 |
| 10 | Φ190 | 1800-4000 | 100-200 | 600-1200 |
| 11 | Φ230 | 2200-4500 | 100-200 | 750-1400 |
| 12 | Φ270 | 2400-5000 | 100-200 | 1000-1500 |
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A: We always make a pre-production sample before produce the order, always make the final Inspection before shipment.
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A: Yes, all our activities are accredited to ISO9001:2008 and API, both in products and services.
