Type | Describe |
PW2-20 PW2-22 PW2-24 PW2-25 PW2-26 PW2-27 PW2-28 PW2-29 PW2-30 PW2-31 PW2-32 | 2 stage planetary gearbox Output torques: 11.6 to 155 KN.m Rope load: 67 to 408KN Ratio from i=13 to 28 Gearbox mounted inside winch drum. Input and output in opposite sense of rotation |
PW3-20 PW3-22 PW3-24 PW3-25 PW3-26 PW3-27 PW3-28 PW3-29 PW3-30 PW3-31 PW3-32 PW3-33 PW3-34 PW3-36 PW3-38 PW3-40 | 3 stage planetary gearbox Output torques: 25 to 236 KN.m Rope load: 116 to 566 KN Ratio from i=45 to 141 Gearbox mounted inside winch drum. Input and output in opposite sense of rotation |
PW4-20 PW4-22 PW4-24 PW4-25 PW4-26 PW4-27 PW4-28 PW4-29 PW4-30 PW4-31 PW4-32 PW4-33 PW4-34 PW4-36 PW4-38 PW4-40 | 4 stage planetary gearbox Output torques: 47 to 1500 KN.m Rope load: 180 to 1950 KN Ratio from i=167 to 940 Gearbox mounted inside winch drum. lnput and output in opposite sense of rotation |
Remark: Mechanical efficiency of every stage is 98 %, bearings forrope drum and the seal rings mechanical efficiency is 99%
For example: the total mechanical efficiency for 2 stage winchplanetary gearbox n=0.98×0.98×0.99=0.95