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防跳線器：用于繞線時(shí)防止跳線，其中間瓷輪由超精拋光制成，配有高速軸承，使繞線時(shí)跳動在很小的范圍內(nèi)，保持了繞線時(shí)張力原穩(wěn)定性。

wire jump preventer: applicable for wire jump preventing during winding. the niddle ceramic roller is made by precise polishing and matched with high-speed bearing so that jump during winding can be minimized to ensure the tension stability.