A choice between self-compensating and adjustable shock absorber

The industrial shock absorbers from HOILD top off the company's offerings in damping technology. This HOILD category gives designers a choice between self-compensating and adjustable shock absorber. Whichever design is chosen, this type of shock absorber impresses with its robustness and operational readiness wherever heavy loads need to be reliably stopped on-the-spot and at a precise point. 

Shock absorber for heavy duty

Whether in state-of-the-art cranes, automated high-rack facilities or in the container logistics, whether as bump stop for trains, cable cars or swing bridges or to decelerate slabs and supports in steelworks: Heavy duty shock absorber are used in many different industrial areas to protect machines, equipment and goods from heavy impacts.

The main purpose of the hydraulic shock absorber series

Strictly speaking, the higher precision of the speed governor, oil filled shock absorbers and oil head, etc. belong to the same type, the focus is used in the high degree of automation of mechanical equipment, the main role is to buffer and Stable speed, so that machinery and equipment to a certain speed uniform speed, and thus ensure the accuracy of mechanical equipment and safety characteristics, to a large extent to enhance the operational efficiency of machinery and equipment.

Hydraulic shock absorber of precision speed controller with the characteristics

Hydraulic shock absorber of precision speed controller with the characteristics:

1, the piston lever friction is relatively small, basically can be considered that there is no friction

2, precision governor for a long time without the use of oil leakage situation;

3, stable characteristics of strong, can continue for a long time stable braking;

4, precision transmission is the use of permanent lubricants, long-term use do not need to add lubricant.

Precision speed stabilizer to ensure that the operation of machinery and equipment when the speed is stable, to ensure that its degree of automation and precision, so that the quality of parts has improved.

Adjustable Pressure in Hydraulic Shock Dampers

The ability to adjust pressure in a damper will make it one of the more versatile tools in any heavy gauge stamping situation. Being able to change the tonnage in your press in just a few minutes saves on down time and tooling. It also allows the dampers to be used on a different size presses (smaller) if needed. This makes the dampers useful life much greater because it can be used across a number presses over time. External pressure adjustment is a unique quality of damper and no other competitor in the market has this feature.To change the pressure in a hydraulic oil shock absorber all you’ll need is a 3/16th Hex Head and pressure gauge. Then you’ll need to locate the flow control valve and use the wrench to adjust the pressure up (rotating in clockwise) or down (rotating it counter-clockwise). It’s really that simple. The adjustable hydraulic damper will start to optimize the performance of any press and it will not add additional forward tonnage to any blanking application. It will also Increase production by running at a reduced pressure will allow the press to run at higher SPM without excessive wear.

How does hydraulic shock absorber work?

Blanking requires the press to build tonnage that exceeds the shear strength of the material. When this happens, the press frame and housings are loaded in tension. At the moment of material fracture, the resisting forces in the press are released and the press slide is allowed to accelerate downward at speeds that approach 10g's.Sides and adjusted properly, the hydraulic shock absorber will automatically develop a resisting counter pressure force (through internal hydraulic pressure control) that will absorb the acceleration and eliminate the resulting shock and vibration.

Who Needs Shock Dampers?

Custom oil shock damper is beneficial in any blanking, punching of die trimming application of metal, plastics of composites that is experiencing excessive reverse shock, premature die wear, fatigued press components or hydraulic system failure at part breakthrough.

Miniature shock absorbers provide a positive stop

The series are miniature shock absorbers. They are specially designed with multiple orifices to smoothly stop moving loads. This hydraulic shock absorber uses the bumper head type to provide a positive stop to prevent damage caused by the piston “bottoming out” in stage of stroke without stop collar. 

Introduction to Shock Absorber

A shock absorber or (oil shock damper) is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. A shock absorber is a type of dashpot.Pneumatic and hydraulic shock absorber is used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below).One design consideration, when designing or choosing a industrial shock absorber, is where that energy will go. In most shock absorbers, energy is converted to heat inside the viscous fluid. In hydraulic cylinders, the hydraulic fluid heats up, while in air cylinders, the hot air is usually exhausted to the atmosphere. In other types of shock absorbers, such as electromagnetic types, the dissipated energy can be stored and used later. In general terms, shock absorbers help cushion vehicles on uneven roads.

Pneumatic shock absorber in various industries

Holid industrial shock absorbers are used in various industries, like factory automation, heavy industry, defense industry and health machines, to save costs, improve machine efficiency, increase machine operating life and reduce noise pollutions and maintenance costs. As a hydraulic shock absorber manufacturer, Holid manufactures adjustable and self-adjusting shock absorbers, hydraulic buffers (crane buffers), hydro checks and gas springs. 

The working principle of the double acting shock absorber

The working principle of the double acting shock absorber is that: in the compression stroke, namely the automobile wheels move close to the automobile body, the shock absorber is compressed, the piston 3 of the hydraulic oil shock absorber moves downward, the volume of the lower cavity of the piston is decreased, the oil pressure rises, the oil flows to the cavity (upper cavity) above the piston via the passing valve 8, and the partial space of the upper cavity is occupied by the piston rod 1, so that the increased volume of the upper cavity is less than the decreased volume of the lower cavity, some oil pushes the compression valve 6 and flows back to the oil cylinder 5, and the oil-saving action of these valves forms the damping force against the compressed motion of the suspension; in the stretching stroke of the shock absorber, the wheels are relatively away from the automobile body, the shock absorber is stretched, the piston of the shock absorber moves upward, the oil pressure of the lower cavity of the piston rises, the passing valve 8 is closed, the oil in the upper cavity pushes the stretching valve 4 and flows to the lower cavity; and because of the existence of the piston rod, the oil flowing from the upper cavity is not enough to fill up the increased space of the lower cavity, so that a certain vacuum degree is generated in the lower cavity, the oil in the oil storage cylinder pushes the compensation valve 7 and flows to the lower cavity for supplement, and the throttling action of these valves forms the damping force against the stretching motion of the suspension.

Movement of the piston within the industrial shock absorber

Up and down movement of the piston within the industrial shock absorber, the shock absorber fluid cavity they repeatedly from one chamber into the other through different pore cavity.In this case internal friction and fluid friction and oil molecules between the cell walls between the form of vibration damping force, making the car shake energy into heat oil, then absorbed by the shock absorber distributor to the atmosphere. When the oil passage section and other factors constant, the relative velocity damping force with the frame and axle (or wheel) between the increase and decrease, and with oil viscosity related.

Introduce the principle of a hydraulic damper

Oil Hydraulic Damper is a 1970s developed speed responsive damping device, which by means of special structures valve control cylinder piston moves to curb piping or equipment periodic load and shock load affected. Holid pneumatic component is mainly used to prevent damage to piping or equipment due to the earthquake, water hammer, steam hammer, wind load, exhaust valve and other impact loads caused. Working process of hydraulic damper can be "hardness and softness" to describe, in the normal thermal expansion of piping or equipment can move slowly along, at which time almost no damping force, then the performance of the "soft"; hydraulic damping during load transients the valve is activated, this time with the vibration force which produces the reverse resistance of the same size, a greater throttling piping or equipment vibrations, reduce the amplitude, which play a role in the protection of pipes or equipment, then the performance of the "Gang . "

Briefly explain for everyone to use and install the hydraulic shock absorber

1, the installation of a hydraulic shock absorber, and the shaft axis line of hydraulic torque support early position and another flange connected parts should be within 0.5 millimeters.

2, in the fooled process, if desired hydraulic torque testing equipment which support pressure situation, you need to start from the detected pressure point inspection and testing, we recommend users to use specialized testing pressure hose assembly to testing .

3, the temperature of the support apparatus manipulation recommend that users use forced cooling, cooling water communication needs from start to finish.

4, the hydraulic torque support apparatus preload process, the need to ensure the same axis of the indenter and the guide device.

5, the hydraulic torque support apparatus comprises hydraulic oil and nitrogen pre-charge, install and dismantle when it should be a specialist technician to perform.

Industrial shock absorber in the technical field, involving the larger size of a class of cement manufacturers produced raw material vertical mill production line above, it is mainly used to buffer the roller radial impact forces in the operation of the process formed a class buffer means.

Hydraulic shock absorber is available in various energy capacities

Manufacturer of hydraulic miniature machine shock absorbers. Available in various energy capacities, stroke lengths, and impact velocity ranges. Features include compact design, integrated positive stop, and temperature stable oil damping medium.The hydraulic shock absorber is suitable for use in industrial applications including handling devices, rotary and pivoting actuators, and linear cylinders. Technical support services are provided.

Hydraulic Shock Dampers Work?

Blanking requires the press to build tonnage that exceeds the shear strength of the material. When this happens, the press frame and housings are loaded in tension. At the moment of material fracture, the resisting forces in the press are released and the press slide is allowed to accelerate downward at speeds that approach 10g's.Sides and adjusted properly,the oil shock damper will automatically develop a resisting counter pressure force (through internal hydraulic pressure control) that will absorb the acceleration and eliminate the resulting shock and vibration.

Industrial Shock Absorbers suited for all loads

HOLID industrial shock absorbers work hard. Their application means moving loads are evenly decelerated over the full stroke. The result: the lowest braking force and shortest braking time. The series from HOLID is viewed as the reference standard for medium-sized damping technology. Many innovations such as diaphragm accumulators, long life seals, hardened inner pressure chambers and make a decisive contribution towards extension of the service life. This means that the effective load range can be increased considerably, providing users with more scope with respect to the absorber size and greater utilization of the machine's output. HOLID industrial shock absorber manufacturers offers a wide range of matching accessories for all absorber series. This eliminates internal production of assembly parts which involves high costs and loss of time.

Hydraulic shock absorber to car

The hydraulic shock absorber mostly comprises of a cylinder filled with hydraulic oil and a piston, which moves with every vertical movement of the wheel. This piston glides up and down when the spring is compressed and extended during the journey. During compression (pressure stage), the oil beneath the piston must flow through a narrow valve opening. This Oil Hydraulic Damper process generates friction that converts the kinetic energy from the oil into heat, brakes the movement of the piston and therefore damps the vibration in the car body. The compressed oil flows to a reserve pipe via valves in the base. The damping resistance varies depending on the speed at which the piston is moving, the volume of oil and the number and size of valves. In general, the faster the piston rod moves, the higher the force acting on the piston and more resistance is created. When the spring is extended (pull phase), the oil flows through an even narrower valve back down through the piston, achieving a stronger damping that when the spring is compressed. This is required so that the spring can relax in a controlled way and so that the wheels do not lose contact with the ground.

The Relation Between Hydraulic Buffer and Damper

When you want to buy a hydraulic recoil buffer, but do not know what to buy when the general will recommend you buy a damper, what is that damper? In the end it has any effect? The emergence of dampers have been for decades, the earliest in the United States out, and later in the application in various fields, until now has been integrated into each industry, its role is very large, the so-called damping, is able to Different motions, including friction and obstructions, that dampen the vibration are used in the machine to provide resistance to the moving object and reduce the kinetic energy, which is the main purpose. Of course, the damper is not how high-tech technology, it has been formed in a long time ago, and now although there is a long development time, but the basic working principle has not changed. The scope of adjustable hydraulic damper applications is very broad, currently in the aviation and aviation, military and machinery manufacturing. So, now the damper began to building, bridges, railway construction, its development is very rapid, like Japanese housing construction on the integration of a large number of damper technology. However, the largest contribution to the damper or engineering manufacturing, in many large machinery has a damper this accessories, the efficiency of its buffer prominent, even in some household tools are also used in daily dampers, for example, our home The door may be provided with a damper. There is no doubt that the development of the damper has gone through a long time, but its performance is increasing, the role of each industry is very prominent, can be seen everywhere around us; damping; this conceptual design and products.