4000Lbs Freight Elevator Safety For Traction Elevator Machine Room
Notes:
Square feet area of platform is determined by net inside area.
General Note:
1lb = 0.454 kg
1ft2= 9.29 E-2m2
Class of Loading DefinitionsASME A17.1 code requirements for minimum rated capacity are as follows:
• Class A (General Freight Loading) — 50 lbs. per sq. ft.• Class B (Motor Vehicle Loading) — 30 lbs. per sq. ft.• Class C-1 (Industrial Truck Loading – truck carried by elevator) — 50 lbs. per sq. ft., but not less than load, including weight of truck.
• Class C-2 (Industrial Truck Loading – truck is normally used for loading and unloading only and is not usually carried by elevator) — for elevators of 20,000 lbs. capacity or less
capacity shall equal the weight of the loaded truck — maximum load on platform during
loading and unloading not exceed 150% of rated load.
• Class C-3 (Other loading with heavy concentrations where truck is not usually used) — 5 – lbs. per. sq. ft., but not less than load.
Standard Freight Cab Sizes
Freight car design
FAQ
1. Are the elevator wire ropes durable?
The elevator wire rope has special provisions and requirements. Configuration is not only for wire rope and rated load, but also considered the size of the traction, as a result, the tensile strength of wire rope is greater than the weight of the lift. The safety factor is equipped with more than four wire rope. So it won’t break at the same time.
2. Is it dangerous for power failure suddenly during the elevator running?
If it occurs, the elevator will automatically stop due to the electrical and mechanical safety device. In case of power failure,elevator brakes will automatically taken. In addition, the power supply departments such as planned outage, prior notice are also operating.
3. Will us be hurt when it closed suddenly?
In the closing process, if people touch the hall door, the door of elevator will automatically restart without any danger. With anti clamping switch, once the gate touched, this switching action make the elevator unable to be closed and even reopened. In addition, closing force is also available here.
4. How the elevator running?
Elevators are operated with a counterweight wire rope through the (tractor) traction drive, making ups and downs on the guide rail.
5. Is the escalator installation complicated?
We believe the functions of an escalator are not necessarily proportional to the operation complexity. Therefore, escalators designed by us apply an integrated structure, so that the equipment is more precise and more efficient and allows easier and more convenient commissioning.
6. Do you have any cerifications?
Yes, we do with ISO9001 / CCC / CE Certificates for u.