Hydraulic hoist (hydraulic crane, hydraulic lifting platform, etc.) is a device that uses a hydraulic system to transmit power to lift or move heavy objects, and is widely used in industries, construction, logistics, ports, and other fields. Its core advantages are reflected in power performance, control accuracy, structural adaptability, safety, and economy. The following is a specific analysis:

1、 Powerful power output and load capacity

High thrust and adaptability to heavy loads

The hydraulic system transmits power through high-pressure oil, which can generate huge thrust and easily cope with heavy loads (such as tens to hundreds of tons of goods and equipment).

Application scenarios: steel structure hoisting on construction sites, container handling at ports, mining equipment installation, etc.

Comparative advantage: Compared to electric hoists, hydraulic systems have more stable performance in low-speed high torque scenarios and are less prone to damage due to overload.

Constant power output characteristics

The flow rate and pressure of the hydraulic pump can be independently adjusted. When the load changes (such as cargo shaking during lifting), the system can automatically adjust the output power to maintain stable operation.

Example: When lifting vehicles of different weights with a hydraulic car lift, there is no need to manually switch gears, and the system automatically adapts to the load.

2、 Accurate and stable control performance

Stepless speed regulation and micro motion function

By adjusting the size of the hydraulic valve opening, it is possible to achieve a stepless change in lifting speed (from extremely slow to fast), meeting the needs of precision installation or hazardous material handling.

Application scenarios: Assembly of aerospace equipment, maintenance of nuclear power plant equipment, restoration of cultural relics, etc.

Comparative advantage: Mechanical transmission or electric elevators require gear shifting to achieve speed switching, while hydraulic systems can continuously adjust speed for more flexible operation.

low speed stability

Hydraulic motors have small torque fluctuations during low-speed operation, making them suitable for scenarios that require slow and smooth lifting, such as the installation of glass curtain walls in high-rise buildings.

Technical support: By using load sensitive variable displacement pumps or proportional valves, low-speed performance can be further optimized.

3、 Compact and efficient structural design

High power density

Hydraulic components (such as hydraulic cylinders and motors) are small in size and light in weight, but can output high power, making them suitable for space limited situations.

Example: The hydraulic scissor lift platform can vertically lift and lower in narrow warehouses, occupying only one-third of the space of traditional freight elevators.

Modularity and flexibility

The hydraulic system can achieve complex motion control by connecting multiple actuating components (such as multiple hydraulic cylinders acting synchronously) through pipelines.

Application scenarios: Multi station collaborative work on automated production lines, synchronous lifting of stage machinery, etc.

Overload protection and self-locking function

The hydraulic system is equipped with a safety valve that automatically releases pressure when the load exceeds the rated value, preventing equipment damage; The hydraulic cylinder comes with a mechanical self-locking function, which prevents the load from falling in case of power failure or malfunction.

Comparative advantage: Electric hoists require additional brake or limit switches, while hydraulic systems can achieve dual protection through hydraulic circuits.

4、 Ability to adapt to harsh environments

Explosion proof and anti-corrosion design

In flammable and explosive places such as coal mines and oil depots, hydraulic hoists can use explosion-proof motors, hydraulic valves, and anti-static materials, and pass Ex d certification.

In humid and corrosive environments (such as beaches and chemical plants), key components (such as hydraulic cylinder piston rods) can be plated with hard chromium or made of stainless steel to extend their service life.

High temperature and low temperature resistance performance

By selecting appropriate hydraulic oil (such as HV32 for low temperature and HM68 for high temperature) and heating/cooling devices, the hydraulic system can operate stably in an environment ranging from -40 ℃ to+80 ℃.

Example: The hydraulic hoist used in the Arctic scientific research station needs to be equipped with an electric heater to prevent hydraulic oil from solidifying.

Resistance to impact and vibration

The hydraulic system has a buffering effect, which can absorb load impacts (such as sudden swinging of goods during lifting) and reduce mechanical wear.

Comparative advantage: Mechanical transmission systems are prone to damage gears or couplings under impact loads, while hydraulic systems can automatically reduce impact through hydraulic elasticity.

5、 Economy and long-term benefits

Low maintenance cost

Hydraulic components have a simple structure and low failure rate; Daily maintenance only requires regular replacement of hydraulic oil and filter elements, without the need for complex debugging.

Data support: Statistics show that the average annual maintenance cost of hydraulic elevators is 20% -30% lower than that of electric elevators.

long service life

The design life of key components in hydraulic systems, such as hydraulic cylinders and pumps, typically exceeds 10 years and can operate stably for a long time with proper use and maintenance.

Case: A container hydraulic hoist at a certain port has been operating continuously for 15 years, with only seals and hydraulic oil replaced.

Energy saving and efficiency

By using variable displacement pumps or servo hydraulic systems, the flow rate can be automatically adjusted according to the load demand, reducing energy waste.

Data comparison: Servo hydraulic elevators save 30% -50% more energy than traditional hydraulic systems and are suitable for high-frequency operation scenarios.

6、 Safety and reliability

Multiple security protections

Hydraulic hoists are usually equipped with overload protection, anti fall devices, emergency stop buttons, limit switches, etc., to ensure safe operation.

Standard requirements: comply with national standards such as GB/T 3811-2008 "Code for Design of Cranes", and pass type tests and safety certifications.

Fault self diagnosis function

Modern hydraulic hoists can integrate sensors and PLC control systems to monitor real-time parameters such as pressure, temperature, and oil level. When there is a fault, it will automatically alarm and display a code, making it easy to repair quickly.

Example: A certain intelligent hydraulic lifting platform can remotely check the equipment status through a mobile app to prevent malfunctions in advance.

7、 Wide applicability of application scenarios

Due to its aforementioned advantages, hydraulic elevators can be applied to:

Industrial field: Material handling on production lines, equipment installation and maintenance.

Construction field: high-rise building construction, steel structure hoisting, glass curtain wall installation.

Logistics field: warehouse shelf access, container loading and unloading, automated three-dimensional warehouse.

Special fields: aerospace, nuclear power plants, shipbuilding, mining, etc.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment