SEW 31C是一種斜齒輪減速器，由鑄鐵機殼、斜齒輪、軸承和減速電機組成，主要用于包裝機械、傳輸機械、堆垛機械、冷庫機械等設備中，具有高強度、高精度、高效率、低噪音等特點

It is a helical gear reducer composed of a cast iron casing, helical gears, bearings, and a reduction motor. It is mainly used in packaging machinery, transmission machinery, stacking machinery, cold storage machinery, and other equipment. It has the characteristics of high strength, high precision, high efficiency, and low noise​​