单头缩口机
单头缩口机是太阳能外胆加工锥度缩口的新型设备，采用单头齿轮咬合，缩边起筋均匀，强度高，速度快，可在一台机器上加工不同直径的外桶，同步压筋缩口。功率0.75KW，可加工板材厚度0.2-1.2MM，机器尺寸3.5米x0.8米x1.5米。


 Single head shrinking machine
 This is the taper necking and tendon pressing equipment for the outer of solar water heater. Adopting single head gear bite, the shrinking is uniform with high strength and fast  speed. It can process different diameter outer tanks and also tendon press at the same time. The power is 0.75KW, can process thickness of  0.2-1.2mm sheets. The dimension of machine is  3.5x0.8x1.5M.