Scissor lift: a lifting device to improve efficiency

A scissor lift is widely used in logistics, warehousing, production lines, and other fields. It consists of several vital components to achieve efficient lifting and lowering functions, facilitating workflow. This article will introduce the composition, lifting principle, power source, and usage steps of scissor lifts.

Composition of a scissor lift

A scissor lift is composed of the following components:

a. Scissors: The scissors are the primary load-bearing parts of the lift and are usually made of high-strength steel. They are connected by a coupling device to maintain balance and stability during the lifting process.

b. Lift frame: The lift frame is the framework that supports the whole lift structure. It consists of crossbeams, columns, bases, etc., which provide solid support and structural strength.

c. Hydraulic system: The hydraulic system is the critical component of the scissor lift, which includes a hydraulic tank, hydraulic pump, hydraulic cylinder, hydraulic valve, etc. By controlling the hydraulic system’s work, the lift’s lifting function can be realized.

d. Control system: The control system monitors and controls the scissor lift’s operation. It includes electrical components, control panels, sensors, etc. The operator can control the lift height, speed of the charge, and other parameters through the control system.

Scissor lift lifting principle

The scissor lift achieves the lifting function through the hydraulic system. When the hydraulic pump is activated, hydraulic oil is pumped into the hydraulic cylinder, causing the piston of the hydraulic cylinder to move upward. The piston is connected to the scissor fork, and when the piston rises, the scissor fork also rises. On the contrary, when the hydraulic pump stops working, the piston of the hydraulic cylinder goes down, and the shear fork also goes down. By controlling the operational status of the hydraulic system, the lifting height and speed of the scissor lift can be precisely controlled.

The power source of the scissor lift

Scissor lifts usually use electricity as the power source. Hydraulic pumps and electric motors are the primary power sources of scissor lifts. The electric motor drives the hydraulic pump to generate energy and deliver oil to the hydraulic cylinder. The work of the hydraulic pump can be controlled by a switch or a button on the control panel to achieve the lifting function of the lift.

Workflow of scissor lift

The workflow of a scissor lift usually includes the following steps:

a. Preparation: Check the hydraulic oil level of the lift, power connection, etc., to ensure that the equipment is in normal working condition.

b. Adjust the height: According to the demand, adjust the lifting height of the lift through the control panel or switch to adapt it to the specific work scenario.

c. Load/unload: Place the goods on the lift platform and make sure the goods are stable and reliable.

d. Lifting operation: By operating the control system, start the hydraulic pump to raise the hydraulic cylinder and lift the cargo to the required height.

e. Fix the cargo: After reaching the target height, take the necessary safety measures to ensure the load is stable and fixed on the lift platform.

f. Complete the task: After transporting the cargo to the target position, stop the hydraulic pump from working through the control system to lower the hydraulic cylinder and unload the load safely.

g. Shutdown/Maintenance: After finishing the job, turn off the Power and perform routine maintenance to ensure the reliable long-term operation of the lift.

Operation steps of using a scissor lift

a. Preparation: Make sure there are no obstructions around the lift and ensure the work area is safe.

b. Power on. Connect the lift to the power source and make sure the Power is supplied correctly.

c. Adjust the height: Adjust the lift height through the control panel or switch according to the work requirements.

d. Load/Unload: Place the goods on the lift platform and make sure the goods are placed smoothly.

e. Control lifting: Operate the control panel or switch to start the hydraulic pump and control the lifting action of the lift. Adjust the lifting speed as needed.

f. Complete the operation: After the goods reach the target height, stop the hydraulic pump and make sure the goods are firmly fixed on the lift platform.

g. Shutdown: After completing the lifting task, disconnect the lift from the power source and turn off the power switch.

h. Cleaning and Maintenance: Clean the lift platform and surrounding area of debris and dirt promptly and perform regular maintenance, including checking the working condition of the hydraulic system, electrical components, and coupling parts.

i. Safety precautions: When operating the scissor lift, follow the safe operating procedures and pay attention to the weight limit of the cargo to ensure the safety of personnel and load during the operation.

What is the daily maintenance of scissor lifts?

Cleaning and lubrication: Clean the various parts and surfaces of the scissor lift regularly, especially the hydraulic cylinder, hydraulic pump, and mechanical connections. Remove the accumulated dust, debris, oil, etc. Also, during maintenance, check and lubricate the moving parts, such as the piston rod and bearings of the hydraulic cylinder, to ensure their smooth operation.

Hydraulic system maintenance:

1. Regularly check the hydraulic oil level and quality to ensure that the hydraulic oil is clean and sufficient.
2. If necessary, replace the hydraulic oil in time and consider the environmental requirements for discharging the old oil.
3. In addition, check whether there is oil leakage in the hydraulic pipeline and repair it in time.

Electrical system maintenance: regularly check the electrical system’s connection lines, switches, and protection devices to ensure its regular operation. Clean dust and dirt from electrical components, and pay attention to prevent moisture and corrosion.

Wheel and track maintenance: Check the wheels and tracks of the scissor lift for damage, deformation, or wear. If necessary, replace damaged wheels quickly and clean and lubricate them to ensure smooth operation.

Safety device maintenance: regularly check the safety devices of the scissor lift, such as limit switches, emergency stop buttons, safety guardrails, etc., to ensure their regular operation. If any malfunction or damage is found, repair or replace them in time.

Regular inspection and maintenance: In addition to daily care, comprehensive assessment and maintenance are required. This includes checking the pressure and leakage of the hydraulic system, checking the electrical system’s voltage and current, disassembling and inspecting, and lubricating the key components.