A LEADING FORCE IN HIGH PRESSURE HYDRAULIC TOOLS

The hydraulic cylinder often has a jumping and stopping movement state during operation, which we call creeping phenomenon. This phenomenon is especially easy to occur at low speed, which is also one of the main faults of hydraulic cylinder.To solve the problem of hydraulic cylinder creep, we must study the cause of this phenomenon. After summarizing, we found that the cause for hydraulic cylinder creep not only have something to do with the hydraulic cylinder itself and also related to other factors outside the cylinder. Let’s talk about it today. Internal causes of hydraulic cylinder creep failure ① There is residual air in the cylinder, and the working medium forms an elastic body. Troubleshooting method: Fully exhaust the air; check whether the diameter of the hydraulic pump suction pipe is too small, and the suction pipe joint should be well sealed to prevent the pump from sucking air. ② The sealing friction is too large. Troubleshooting method: The piston rod and the guide sleeve are matched with H8/f8, and the depth and width of the sealing ring groove are strictly made according to the dimensional tolerance; if a V-shaped sealing ring is used, adjust the sealing friction to a moderate degree. ③ The sliding parts

Hydraulic cylinders are widely used in engineering machinery, machine tool equipment, automobile manufacturing, metallurgy and mining, aerospace and other fields. So, how are hydraulic cylinders produced? 1. Preliminary preparation 1.1 Design Hydraulic components and sealing components have different requirements in terms of dimensional tolerance, surface roughness, shape and position tolerance, etc. Therefore, the geometric accuracy of each component must be ensured and the correct seal must be selected during design. 1.2 Steel material selection: Commonly used steels are #20 steel, #45 steel, and 40Cr. The hardness of the steel is different, the applicable working conditions are different, and the price is also different, so comprehensive consideration is required. 2.The Production Processing 2.1 Cylinder body Generally, seamless steel pipes without bending or deformation are selected. In order to ensure its good toughness and plasticity, it needs to go through a series of processing. Cut the steel pipe into required length. Threads are machined on the inner walls of both ends of the steel pipe. Drill oil holes at appropriate locations and weld oil pipes. During the production of hydraulic cylinders, many processes such as cylinder barrels and piston rods require welding. High-precision welding machines can ensure welding quality. Scraping and polishing:

In hydraulic systems, hydraulic cylinders are widely used in a variety of scenarios such as heavy lifting operations, propulsion operations, and driving operations. In these systems, the synchronous operation of multiple hydraulic cylinders is an important part of ensuring the efficient and safe operation of the equipment. The synchronization of hydraulic cylinders can not only improve the efficiency of operations, but also avoid equipment damage caused by inconsistent movement. This article will explore in depth the principles of the synchronous movement of multiple hydraulic cylinders, common synchronization methods, technical challenges, and precautions during operation. 1. Working principle of hydraulic cylinder synchronization Hydraulic cylinder synchronization means that multiple cylinders extend or retract at the same speed and force at the same time. The core lies in the uniform distribution of hydraulic fluid and the precise control of pressure. The realization of synchronous operation depends on the following key factors: Fluid dynamics: The basic principle of the hydraulic system is to use the incompressibility of the liquid to convert pressure into power. The synchronous movement of the cylinder is achieved by controlling the direction and flow of the liquid flow. Load balancing: When multiple hydraulic cylinders share the load, ensure that each

Project Manager Mr. Igor from our customer in The Czech Republic came to the RIVERLAKE factory workshop for quality inspection of 96 units of 150-ton CLRG series double-acting hydraulic cylinders. Detail tests were carried out to measure the cylinder dimensions, inner and external cylinder appearance, and static and dynamic load testing on a test bench. Everything went smoothly and both parties signed an acceptance protocol.

Project pictures from our Thailand distributor. Customers are very satisfied.

RIVERLAKE ZJ9 pile load testing power pack is a plc controlled pile load testing system,which can control,display,record and download the real-time pressure of the cylinders,real-time tonnage of the output force,real-time pressure of the power pack,real-time load testing time.In this project,our ZJ9 power station worked with 9 units HCRL30012 double acting lock nut hydraulic cylinders to generate a Max. total output force of 2700 tons.Beside above features,we can even built in bluetooth load cell and bluetooth dial gauge sensors to our pile load equipment to display and record the real-time load data from load cells and real-time pile displacement data from the dial gauge.

Project Images Project Introduction 50-ton low height pancake hydraulic cylinders used in auger boring steerable rock system.Steerable head designed for boring through sand or soft rock with real-time steering adjustments made out of the pit with a hydraulic control system. The Steerable Rock System (SRS) is the auger boring market’s first steerable head designed to navigate not only solid rock but difficult fractured rock conditions as well. Engineered to operate in rock up to 25,000 psi, the SRS allows operators to keep bores online and grade even in the toughest ground conditions for an on-grade bore. On the drilling head, there is peace’s of small round pipe, that’s where the cylinders sit. There are 4 pcs 50-ton pancake hydraulic cylinders on each side(top, bottom, right, and left) of the steerable head for a total of 16pcs, it works when it’s drilling horizontally underground we use the cylinders to navigate the drilling head.

Project Images Project Introduction Taizhou Chuanhu Hydraulic Machinery Co., Ltd delivered 6 double-acting hydraulic cylinders and a petrol-driven hydraulic power unit for the skidding and sliding systems. The Power Pack and hydraulic cylinders are used for electric transformer relocation.

Project Images Project Introduction Hydraulic Testing Projects With China National Offshore Oil Corporation

Project Images Project Introduction The North-South Commuter Railway, also known as the Clark–Calamba Railway, is a 147-kilometer urban rail transit system under construction on the island of Luzon, Philippines, primarily in the Greater Manila Area. The project will utilize the Japanese railway system that uses energy-efficient and reliable trains.  RIVERLAKE supplied a pile load testing system consisting of 2 units of 1000-ton hydraulic cylinders and 1 unit PLC-controlled electric hydraulic power unit. The system will perform pile load testing work up to 1569 tons in the NSCR Extension Project. RIVERLAKE PLC controlled hydraulic jacking system is designed for pile load tests up to 2000 tons where the load is to be applied in different stages and displayed accurately in real-time. The plc pile load test jacking system provides 6 default tonnage options, user can preset the loading tonnage and holding period of time for each option. During pile load test operation, the whole process is run automatically, just select one of the preset tonnages and press the auto-run button. the hydraulic jack will raise to its full stroke, upon reaching the preset load, the jacking system will stop automatically and hold the pressure for the preset period of time. The