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	Introduce synchronous motor Synchronous motors manufactured by our company are supplied in the following series: , 1. Series TK, TDK and TZYK This series motors are horizontal and have 4 structural types: single shaft extension, dual shaft extension, single support and shaft-less suspended structure. The structures with shaft extension drive main equipment via coupling. Shaft-less suspended structure adopts direct mounting of motor rotor on compressor shaft extension. Ventilation can be air cooling by fan on the motor, or positive pressure ventilation to user requirement, so as to suit different operating environment. For example, in flammable and explosive sites, model TZYK can be selected. Motor stator and rotor adopt class F or B insulation. Normally, VPI process is used. 2. Series TL and TDL This series motor is vertical, has suspended structure, and is mainly used to drive axial flow type water pump. Cooling will be by fan on motor or closed circulation by a cooler. Motor stator and rotor adopt class F or B insulation. Normally, VPI process is used. 3. Series TDMK This series motor has casing protection class of IP20, cooling mode of IC01, and structural mounting type of IM7311. This series motor is suitable to drive mining mills and requires an operating environment of less dust, no acid, no alkali or other corrosive gas. This motor will be connected to mill by coupling. Motor shaft extension must not be subject to external radial or axial force. 4. TGB synchronous motor for through flow pump This motor is horizontal, operates submerged in water, and has reliable sealing performance. This motor features new structure, easy installation, and much simplified equipment room. It is suitable for low lift head and large flow. A cooling mode combining closed loop circulating air cooling and conducting heat dissipation by walls directly in contact with water. Motor stator and rotor adopt class F insulation. Normally, VPI process will be used.