Freight Elevator: Precautions for Hydraulic Freight Elevators

Freight Elevator: Precautions for Hydraulic Freight Elevators

When choosing a hydraulic freight elevator, factors such as price and configuration are more important, but customers should first understand the service objects, transportation capacity, work performance, and the requirements for civil engineering design of the hoistway and machine room, etc., to better help choose a suitable freight elevator. The following aspects can be used as references:

1. Actual Hoistway Conditions: Hydraulic freight elevators must be installed in a closed hoistway environment. The actual conditions of the hoistway determine the specifications and dimensions of the hydraulic freight elevator. This includes the width and depth of the hoistway, and the conditions of the pit and machine room.

2. Rated Load Capacity. Or the designed elevator load (Kg) is a major parameter of the hydraulic freight elevator. Generally, specifications of 1000 kg, 1500 kg, 2000 kg, 3000 kg, 5000 kg, etc., are available. Non-standard requirements can also be proposed by the customer.

3. Rated Speed. Or the designed elevator speed, in meters/second, is a major parameter of the elevator. The speed of hydraulic freight elevators is generally 0.25 meters/second and 0.2 meters/second. In special cases, the design speed can exceed 0.5 meters/second.

4. Car Dimensions. The car dimensions of a hydraulic freight elevator can generally be understood as the external dimensions and internal dimensions, represented by width * depth * height. However, the former is mostly used by the customer, while the latter is mostly used by the hydraulic freight elevator manufacturer. This is because customers are more concerned with their own usage effects, and it is more convenient for hydraulic freight elevator manufacturers to calculate the hoistway dimensions. Therefore, customers must confirm the car dimensions for which they need a quotation.

5. Lifting Height. The hydraulic freight elevator runs from the bottom floor to the top floor. Accurate measurement is necessary because the lifting height determines the length of the hydraulic cylinder, and the price of the hydraulic cylinder is relatively expensive.

7. Top Floor Height. The elevator runs from the bottom landing to the top landing. This is also important because the top floor must meet relevant acceptance standards.

8. Number of Stops and the Number of Hall and Car Doors. This has a considerable impact on the price.

Advantages of Hydraulic Freight Elevators

Safety and Stability Advantages:

Hydraulic freight elevators not only have the safety devices of traditional traction freight elevators, but also:

(1) Overflow Valve: Prevents excessive system pressure during upward movement.

(2) Emergency Manual Valve: In case of power failure, the car can be lowered to the nearest floor, and the hall and car doors can be opened to allow passengers to safely exit.

(3) Manual Pump: When the system malfunctions, the manual pump can be operated to extract high-pressure oil, allowing the car to rise to the nearest floor level.

(4) Pipe Rupture Valve: When the hydraulic system pipe ruptures and the car descends, it automatically cuts off the oil circuit and stops the descent.

(5) Oil Tank Temperature Protection: When the oil temperature in the oil tank exceeds the standard set value, the oil temperature protection device generates a signal to suspend the use of the elevator. The elevator can only be started after the oil temperature drops.

Civil Engineering Advantages:

(1) No machine room is required above the hoistway; the top floor can be installed at a height of more than 3.5 meters.

(2) The machine room can be located within a 15m radius of the hoistway, with an area of only 3-4 square meters.

(3) Hydraulic freight elevators are not equipped with counterweights, improving the utilization rate of the hoistway area.

(4) The load of the hydraulic freight elevator and the load are directly applied to the pit through the oil cylinder. Therefore, the shaft wall strength is low, and a brick-concrete structure or brick-concrete shaft wall can be used.

Operating Cost Advantages:

(1) Low Failure Rate: Due to the adoption of an advanced hydraulic system and good control methods, the failure rate of elevator operation can be reduced.

(2) Low Power Consumption: When the hydraulic freight elevator descends, it is driven by the pressure generated by its own weight, greatly saving energy.

Use of Hydraulic Freight Elevators:

Hydraulic freight elevators are generally used in factories, warehouses, shopping malls, hotels, airports, stations, and exhibition halls.

Shandong Jiyang Machinery Factory Co., Ltd. mainly produces freight elevators, loading ramps, lifting platforms, lifts, lifting freight elevators, lifting platforms, electric lifts, hydraulic lifting platforms, hydraulic lifts, scissor lifts, guide rail lifts, hydraulic lifting platforms, fixed lifting platforms, guide rail lifting platforms, scissor lifting platforms, etc. The company has strong technical strength, excellent production equipment, advanced and reasonable technology, and complete testing methods. Our company is a drafting unit for the standard of scissor-type hydraulic lifting platforms. Products are widely used in engineering construction, industrial installation, equipment maintenance, factory maintenance, property management, three-dimensional warehouses, aviation, airports, ports, stations, and many other industries and places.