Now when choosing shield pump in China, imported equipment is preferred. Due to the high cost of shield equipment, various projects often use leasing for production.

The main shield pump is 10 / 8ff-gh or 8 / 6ff-gh produced. This series of pumps has the characteristics of large flow channel and high lift. The material is high chromium alloy Cr26.

The transmission mode is generally dcz coupling transmission, and the sealing mode is packing sealing. The packing shaft seal assembly includes packing box, shaft sleeve, positioning sleeve, sealing ring, packing, packing gasket, water seal ring, packing gland and other parts.

The pump head is:

Impeller, volute and guard plate. D. G-type pump is of single pump shell structure (i.e. without lining). The pump body, cover and impeller are made of wear-resistant metal. The connection of pump body and pump cover adopts special clamping structure, and the pump outlet direction can rotate freely, which is convenient for installation and disassembly.

Transmission part:

All kinds of shield pumps adopt the same series of transmission parts, including bracket and bearing components. The pump shaft has large diameter, good rigidity, short cantilever and will not bend and vibrate under bad working conditions. The bearing adopts heavy single row or double row tapered roller bearing and cylindrical roller bearing according to the transmitted power, which can bear the maximum axial and radial load of the pump. The bearing is lubricated with grease, Both ends of the bearing body are provided with sealing end caps, labyrinth sleeves and labyrinth rings, which can effectively prevent dirt such as pulp from entering the bearing, ensure the safe operation of the bearing and have a high service life.