This article mainly introduces:

Romania hydraulic cylinder,pusher hydraulic cylinder manufacturer,pusher hydraulic cylinder

(Romania pusher hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd）

pusher hydraulic cylinder are widely used in Romania，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed pusher hydraulic cylinder for customers from Romania.

Introduction to pusher hydraulic cylinder:

When the pusher hydraulic cylinder is installed, the piston and the pusher hydraulic cylinder head and other parts have large mass, large size and large inertia, even if there is a lifting equipment auxiliary installation, because the specified clearance is small, no matter how hard it will be put into, therefore, the end of the piston or the pusher hydraulic cylinder head boss is easy to cause scars when it hits the inner surface of the pusher hydraulic cylinder wall. The solution to this problem: for a large number of small products, the use of autocratic assembly oriented tools during installation; For heavy, thick and large large and medium-sized pusher hydraulic cylinders, only careful and careful operation can be avoided.

When the pusher hydraulic cylinder needs to be stored for a period of time, please follow the recommended methods: The pusher hydraulic cylinder should be stored in a dry, clean, non-corrosive gas indoor environment, pay attention to protect the pusher hydraulic cylinder from internal corrosion and external damage. If the indoor requirements cannot be met, the hardened and well-drained ground should be cushioned at least 30cm, and the upper part should be covered with waterproof storage. The oil pusher hydraulic cylinder should not be in direct contact with water vapor for a long time. The pusher hydraulic cylinder should be placed as vertically as possible with the piston rod facing up, which minimizes corrosion due to possible condensation in the pusher hydraulic cylinder and permanent deformation of the seal due to the piston and rod weight. (When the shield is stored in the shield machine, the support shoe is placed upward). Keep the oil port protective cover until the pipe is connected. For long-term storage, the protection should be added on both sides of the piston of the pusher hydraulic cylinder Before working, the pusher hydraulic cylinder must be run repeatedly with low pressure (greater than the starting pressure) to discharge the air in the pusher hydraulic cylinder before normal work. The oil inlet and outlet and the joint must be tightly fastened with a combination pad to prevent oil leakage.

When the pusher hydraulic cylinder is installed, it is necessary to ensure that the direction of the connecting head at the top of the piston rod should be consistent with the direction of the pusher hydraulic cylinder head, earring (or middle hinge shaft), and ensure the straightness of the whole piston rod during the advance and return process to prevent rigid interference and cause unnecessary damage.

When the pusher hydraulic cylinder is in use, measures should be added to prevent the intrusion of pollutants. Effective measures should be taken to control the intrusion of pollutants, such as installing high-efficiency air filters in the tank breathing holes, new oil must be filtered, etc., but also must improve the anti-pollution ability of the pusher hydraulic cylinder itself. In the seriously polluted environment, it is more important to pay attention to, such as the underground oil pusher hydraulic cylinder should use fluorine rubber (FRM) and nitrile rubber (NBR) dust ring, and the ground mechanical pusher hydraulic cylinder should use nitrile rubber dust ring; The filter device is added to the oil inlet of the pusher hydraulic cylinder of the dump truck, construction machinery, work platform and other equipment, and in order to reduce the oil inlet resistance, the flow area should be increased as much as possible, which can effectively reduce the particle pollution from the system.

Answers to some questions about pusher hydraulic cylinder:

When the hydraulic cylinder changes from fast to slow, how can the slow speed become more even and the speed can be adjusted?
Reversing valve set 2 reversing valves. The back of one valve goes directly to the cylinder, running at full speed for fast action. Add a speed control valve behind the other valve, and then connect to the cylinder to achieve slow action, you can adjust the opening of the speed control valve, to achieve the speed of the cylinder can be adjusted. An import speed control valve to more than 1,000 yuan, if you think it is too expensive, you can also use the throttle valve instead. However, the throttle valve is greatly affected by the load change.

How to calculate cylinder speed?
If there is a throttle valve, the cylinder speed will be adjustable. When the throttle is fully opened, the speed of the cylinder reaches the maximum: maximum speed = oil pump displacement ÷ cylinder cavity cross-sectional area The displacement of the oil pump is a main indicator, which can be found on the nameplate, and some can also be known by the oil pump model; The cross-sectional area of the cylinder cavity can be easily calculated. Just make sure the units are the same. And because the cross-sectional area of the rod cavity and the rodless cavity of the cylinder is different, the speed of advance and retreat may also be different.