This article mainly introduces:

New Zealand hydraulic cylinder,hollow cylinder manufacturer,hollow cylinder

(New Zealand hollow cylinder,produced by Hengyu Group）

hollow cylinder are widely used in New Zealand，because of powerful torque，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed hollow cylinder for customers from New Zealand.

Introduction to hollow cylinder:

When purchasing the hollow cylinder, try to clarify the following parameters of the hollow cylinder: A. hollow cylinder diameter, rod diameter, stroke; B. Working pressure or hollow cylinder load; C. Working environment temperature; D. Working medium; E. Operating speed; F. Other parameters, such as connection form, mounting size, etc. In this way, the right hollow cylinder type can be found accurately and quickly.

In order to ensure the service life of the hollow cylinder, the hydraulic system must be set up effective filtration to prevent pollution, the cleanliness of the oil should meet the ISO4406 standard, and the quality of the filtration should also meet the corresponding standards in ISO. The grade requirements of the filter are performed according to the actual working conditions of the system, but the minimum requirements are not less than 19/15 in ISO4406, that is, 24μ (β10≥75) in ISO4572.

hollow cylinders in series, parallel and series parallel. Series: In the hollow cylinder, the oil inlet of the subsequent reversing valve is the supply of the previous oil return, and there is no separate oil return circuit connected with the oil return in each valve. Series: In the hollow cylinder, the oil inlet of the subsequent reversing valve is the supply of the previous oil return, and there is no separate oil return circuit connected with the oil return in each valve. Parallel: the pressure oil in the hollow cylinder is connected with the inlet oil of each reversing valve, and the return oil is collected by the return oil circuit. Series parallel: For this one, compared with the simple series and parallel, it is slightly more complicated, but it is not impossible to understand. The series refers to the oil in the hollow cylinder, which is in series form, but can not form a series circuit, and the parallel refers to the oil return circuit of each valve, which is in parallel.

The quality of the hollow cylinder can not be ignored in the purchase of the hollow cylinder. The hollow cylinder is the main component of the hollow cylinder, the single pillar for mining, the hydraulic support, the gun tube and other products, and its processing quality directly affects the life and reliability of the entire product. hollow cylinder processing requirements are high, its internal surface roughness requirements are Ra0.4 ~ 0.8μm, the coaxiality, wear resistance requirements are strict. The basic feature of hollow cylinder is deep hole processing, which has always troubled the processing personnel.

Answers to some questions about hollow cylinder:

What is the cause of sound and vibration when the hydraulic cylinder is under load?
The main reason 1) may be that the load machinery has stuck phenomenon, and the resistance is large. 2) The hydraulic oil is not enough, or the filter is blocked by dirty things, and the oil is flooded. 3) There is a problem with the pump.

How to remove the lifting cylinder from the forklift truck?
The lifting cylinder is generally fixed on the door frame, and there are screws under and above it, and it is OK to loosen the screws with a wrench on the top. However, we must pay attention to ensure safety and prevent damage to the cylinder or safety accidents.