Key Features of Drum Wound Machine Flameproof Elevators

• The movement of the lift is based on the coiling and uncoiling of a wire rope on a rotating drum.
• A unique feature of drum design is the provision of two ropes coiling separately on a right hand thread groove and a left hand thread groove.
• This leads to lesser rope stress and longer life. These lifts are quicker to install and require lesser space.
• Traction type with counterweight
• This is achieved first through the use of 3 or more independent wire ropes stretched across the main traction sheave.
• There being no positive coupling between the lift and the machine leads to greater safety as a slip is permitted whenever there is an obstruction to the lift travel.
• No overload on the motor in case of lift overshooting at the top floor.
• Jerk free, smooth travel is possible by the usage of 2:1 roping. Though smoother, traction lifts travel at higher speeds than drum wound lifts using the same power.