Lianzhou Office Chair Lifting
The lifting function of Lianzhou office chairs is primarily achieved through pneumatic, hydraulic, or electric systems, with specific operations and principles as follows:

I. Pneumatic Lifting System
Pneumatic lifting is the most common method for Lianzhou office chairs, with the core component being the pneumatic lifting cylinder. Its structure consists of a cylinder with one end connected to the bottom of the seat and the other end fixed to the top of the outer shell, with a small push valve at the top controlled by a height adjustment lever. During operation, users need to locate the circular lifting button or handle beneath the seat (usually marked with a โ+โ symbol) and adjust the height through the following steps:
- Raising the Chair: Press the button or hold the handle while pushing the seat upward to the desired height;
- Lowering the Chair: Keep the button pressed or continue handling while pulling the seat downward to the appropriate position;
- Locking the Height: Some chairs require continuous pressing of the button or turning of the handle to lock the height and prevent rebound.
For example, the Lianzhou President's Office Chair - olm460 uses a BIFMA-certified brand gas spring to ensure smooth and safe lifting, meeting international office furniture standards.
II. Electric Lifting System
Some high-end Lianzhou products (such as electric bed & chair & desk series) use direct current (DC) motor drives to achieve electric lifting functionality. Typical models include DC-JK4118, DC-JK3030, etc. The operation logic is as follows:
- Control Method: Input commands through panel buttons or a remote control, with the motor driving the seat up and down;
- Advantages: The lifting process is quieter, the speed is adjustable, and it supports memory height functions, suitable for scenarios requiring frequent adjustments.
III. Hydraulic Lifting System (Less Common)
A small number of Lianzhou office chairs may use hydraulic systems, which operate similarly to pneumatic systems but transmit power through liquid pressure. The operation method is similar to that of pneumatic chairs, but hydraulic cylinders require higher sealing and durability, resulting in relatively higher maintenance costs.
Precautions
- Regular Inspection: Pneumatic chairs require inspection of the gas spring's sealing to prevent air leaks that could cause lifting failure; electric chairs need to ensure the motor and circuitry are functioning properly to prevent short circuits;
- Weight Limit: The lifting system has a maximum weight limit (usually indicated in the product manual), and exceeding it may cause structural damage;
- Safe Operation: Avoid applying excessive force quickly when adjusting the height to prevent parts from detaching or getting stuck.
The lifting design of Lianzhou office chairs balances practicality and safety, allowing users to choose between pneumatic, electric, or hydraulic types based on their needs and follow correct operating procedures to extend the lifespan.




