Forklift Hydraulic Cylinder Cushioning for Load Protection

Forklift Hydraulic Cylinder Cushioning for Load Protection

Introduction

Hydraulic cylinders play an important role in forklifts. They are responsible for lifting and lowering loads. However, the sudden stopping of the cylinder can cause damage to both the load and the forklift. Therefore, cushioning is necessary to prevent these damages.

What is cushioning?

Cushioning is a process of slowing down or stopping the hydraulic cylinder gradually, by introducing a special mechanism that restricts the flow of hydraulic oil into the cylinder during the stroke ending phase. This mechanism is called a cushioning device.

Types of cushioning devices

There are two types of cushioning devices: fixed and adjustable. Fixed cushioning devices have a constant cushioning effect, while adjustable cushioning devices allow for the cushioning effect to be changed according to the load and the stroke length.

Fixed cushioning device

A fixed cushioning device restricts the flow of hydraulic oil through a small orifice in the cylinder head. This orifice is sized such that the energy of the piston is absorbed by the hydraulic oil as it passes through, thus cushioning the piston before it reaches the end of the stroke.

Adjustable cushioning device

An adjustable cushioning device consists of a needle valve that controls the flow of hydraulic oil through the orifice. The cushioning effect can be adjusted by changing the position of the needle valve.

Benefits of cushioning

Cushioning provides several benefits:

  • Protects the load from damage during sudden stops
  • Extends the life of the forklift by reducing the impact forces
  • Improves operator comfort by reducing the jarring caused by sudden stops

Forklift Hydraulic Cylinder

Application of cushioning in forklifts

Cushioning is used in various forklift hydraulic cylinders such as boom cylinders, lift cylinders, tilt cylinders, and steer cylinders. The cushioning device is incorporated into the cylinder head or the piston depending on the type of cylinder.

Forklift Application

Cushioning in boom cylinders

Boom cylinders are used to extend and retract the boom of a forklift. They are subject to considerable shock loads when the boom is fully extended and suddenly stopped. Cushioning is necessary to protect the boom cylinder and the load from damage.

Boom cylinders are also used in construction equipment such as excavators and backhoes. Our sister company, Boom Cylinders Inc., specializes in manufacturing high-quality boom cylinders for construction equipment. Click here to learn more.

Company Products

We are a leading company in the Chinese hydraulic cylinder market. Our products include forklift hydraulic cylinders, small hydraulic cylinders, hydraulic pistons, lift cylinders, tilt cylinders, steer cylinders, and more. We have a production capacity of 200,000 sets and an annual production of 300 units. All our products are manufactured using state-of-the-art CNC machines and automatic hydraulic cylinder assembly equipment. Our products are known for their high quality, competitive pricing, and excellent customer service.

Additional Products

In addition to our forklift hydraulic cylinders, we also supply hydraulic cylinders for various other purposes such as aerial work platform cylinders, industrial vehicle hydraulic cylinders, rotary drilling rig cylinders, truck crane cylinders, engineering machinery hydraulic cylinders, mining dump truck cylinders, sanitation machinery hydraulic cylinders, and more. We welcome customization orders based on drawings and samples.

Q&A

Q: How does cushioning protect the load from damage?

A: Cushioning absorbs the energy of the piston before it reaches the end of the stroke, thereby reducing the impact force on the load. This prevents damage to the load and ensures that it remains in good condition.

Q: What is an adjustable cushioning device?

A: An adjustable cushioning device consists of a needle valve that controls the flow of hydraulic oil through the orifice. The cushioning effect can be adjusted by changing the position of the needle valve.

Q: What are the benefits of cushioning for the forklift operator?

A: Cushioning improves operator comfort by reducing the jarring caused by sudden stops. This results in a smoother ride and reduces operator fatigue.

Hydraulic Cylinder Factory