synchronous motor for pumping unit Semi-direct drive permanent magnet synchronous motor for pumping unit is a low-speed and high-torque permanent magnet synchronous motor specially designed for oil field beam pumping unit. It eliminates belt transmission system, uses ultra-thin body and directly drives the input shaft of reducer, which is highly efficient and energy saving. The product has China Class A energy efficiency mark and is safe and reliable. It can operate as low as 0.3 punch and is suitable for intermediate pumping Wells and lean oil Wells. The permanent magnet motor eliminates the belt and other transmission components, reduces the footprint of the oil production equipment, improves the oil production efficiency, greatly increases the stability and safety of the oil production equipment, and effectively reduces the failure rate and maintenance costs. The motor adopts torque limiter soft connection, simple structure, easy installation, and can be