The European optimization design has the advantages of light weight, small wheel pressure and short size, effectively increasing the lifting height. Various modes meet user's requirements, excellent driving performance, variable frequency speed regulation and smooth operation. Lifting weight is suitable for 3t-20t, the maximum span can reach 40m. Adopt ABM imported triple-in-one mechanism, the warranty period is three years; Adopt domestic assembled triple-in-one mechanism, the warranty period is 18 months; Electrical components have long life, safe and reliable, adopt air socket, the silver content of contactor is more than 75%.