How to purchase hydraulic shear from China?

Hydraulic shear is a construction equipment tool that uses an excavator hydraulic system to drive the shearing arm through the hydraulic cylinder to crush and dismantle.
Hydraulic shears, also known as shears, crushers, pulverizer, secondary crushers, and multi-function crushers, are widely used in the removal of floors, columns, walls, beams and stairs of buildings and bridges, waste treatment and recycling, shearing of railway rails, and metal products, ship dismantling, car dismantling.

1. The following points need to be considered when selecting the model of hydraulic crushers:

• The model of the excavator.
• Arm length of the excavator.
• If having a quick hitch coupler on the carrier, the weight of quick fit should be considered.
• If the weight of the hydraulic shear exceeds the load of the carrier, it may lead to the danger of being upside down when the excavator is working.

2.Hydraulic system

Excavator hydraulic system needs to have enough flow and pressure for the operation of the hydraulic shear. If the excavator flow and pressure are not enough, the working speed of hydraulic shear will become slower.

Requirements for hydraulic oil:

• A high coefficient of static friction. Otherwise the action of the hook arm of the excavator lags behind and safety accidents are prone to occur.
• rally in 21-35Mpa, up to 42Mpa, while the pressure of industrial hydraulic system is 15-25Mpa. This requires the hydraulic oil to have better anti-wear performance and protect the hydraulic pump.
• High antioxidant performance.
• Good filtration performance, can meet the harsh working environment.

The excavator generates more heat when working with hydraulic demolition shears, so check the viscosity and temperature of the hydraulic oil not too low or too high. When the hydraulic shears are installed for the first time or again after maintenance, there is no hydraulic oil inside, so it may consume a lot of hydraulic oil on the equipment. The hydraulic oil in the excavator tank must be checked before using the olecranon shears.

3.Change hydraulic breaker pipeline into hydraulic shear pipeline

When the hydraulic breaker pipeline has been installed on the excavator, it is necessary to change the hydraulic breaker pipeline into a hydraulic shear pipeline or a hydraulic shear-hydraulic breaker common pipeline.

When the low-pressure pipe in the hydraulic breaker pipeline is a low-pressure fitting, the hose and hard pipe need to be replaced with high-pressure fittings and transformed into a possible circuit in both directions.

When the high-pressure side of the hydraulic breaker is used to open the shearing teeth, it is recommended to set the pressure above 230bar.