We, Guangzhou Jiansui Machinery Co., Ltd, are a professional manufacturer of rock roller cutters and rock drilling bits in China. Our products include roller disc cutters for TBM and Shield Machine, roller cutters for RCD and raise boring machine, tricone bits and diamond bits for drilling in oil & gas, mine, geology and water well.

We concentrate on researching & developing one type of products. That is rock-boring cutters. Our cutters are under similar working conditions. The cutters bore rock and soil with cutting edge rotating around their axles. As the key section of rock-boring cutters, cutting edge is made from high quality alloy steel and tungsten carbide with advanced processing method, so that these cutters have high wear resistance when boring rock. Sealing prevents lubricant oil from leaking and sands from permeating, so bearing has lifetime lubrication. Today our cutters are widely applied in tunneling and drilling industry in China and overseas countries, and are proven reliable and durable, which guarantee our cutters with high efficiency and low cost in your project. We can also offer you custom-made service according to your specific requirements.