1. Elevators & escalators April 19 th, 2011

2. Elevators Types: 1.Pneumatic Vacuum Elevators (PVE) 2.Traction elevators 3.Hydraulic elevators 4.Climbing elevator Usage: – Carry people – Fright goods and tools – Left vehicles and aircrafts

3. Pneumatic Vacuum Elevators (PVE)

4. Maximum height = 11 m Maximum weight = 240 kg 2 – 3 people Residential use only.

5. Traction elevators Advantages: 1.Fast 2.Quiet 3.Smooth ride 4.High rise application Disadvantages: 1.machine room required 2.Higher cost 3.Support structure

11. Hydraulic elevators Advantages: 1.High loads 2.No machine room 3.Dimension optimized 4.Low cost Disadvantages: 1.Slow and noisy 2.Hot oil odor 3.Poor riding quality 4.Environmentally unsafe

14. Escalators