Progressive Distributor

What is a progressive distributor?

A progressive distributor, also known as a piston distributor, is a device that is used for providing lubricants to the machine that is connected to the distributor, in order to facilitate the smoothness of the machining processes.

The progressive distributor utilizes the pressure given from the piston to dispense the lubricants received from the pump, which is connected to the inlet of the distributor, to the required parts from the several lubrication points, which are the outlets of this device.

For the machines that are operated for producing products, no matter in what kind of forms, the distribution of lubricants is of significant importance, since the lubricants can not only facilitate the smoothness of the processes, but also prevent the deviation of the tools or the deformation of the products.

During the machining processes, when the tools come in contact with the workpieces or the materials, the friction and heat would be produced in between the contacting surfaces. If the operators set this problem aside without dealing with it, the friction and heat may damage the tools, which influence the performance of the tools as well as the machines.

What’s worse, the bad performance of the machines refers to the bad effects on the products that are made by these machines. In other words, these machines are not capable of making the products depending on the requirements of the customers.

Therefore, the importance of distributing lubricants to the working sites cannot be emphasized more. With the progressive distributor, this device that is connected to the applied machine with hoses or tubes can not only improve the performance of the machine, but also enhance the qualities of the products in the long run.


How does a progressive distributor form?

A progressive distributor or a piston distributor is comprised of a plate with one inlet and several outlets, the block inside the plate, and the motion indicator with protective cap or the electronic sensor.

● Plate
The plate serves as the base of the progressive distributor, which holds the block on the inside. The plate is designed as a rectangular shape, with one side contains an inlet that is supposed to be connected to the pump of the lubricant, and two sides contain the protruded outlets that are connected to the hoses or tubes for the lubrication points.

Depending on the amount of lubricant that is required to be dispensed to the related applications, the number of the outlets or the lubrication points would differ accordingly, while the inlet remains one no matter how many outlets there are.

● Block
The block is set inside the plate, with the lubrication points that protrude out of the plate. This component consists of outlet ports that parallel to each other, and every two parallel ports are secured by the setscrew and the ball.

In other words, the total number of the lubrication points, which are used to dispense the lubricant from the inlet with the back and forth movements of the pistons inside, would be two times the protruded lubrication points on the one side.

In addition, in order to regulate the flow of the lubricants for preventing, there would be one non-return valve that is set inside each port respectively, which makes the distribution of lubricants more effectively.

● Motion indicator/ electronic sensor
These two components are both available for the progressive distributor, which are used to detect the function of the lubricant distribution, and control the distributor so as to prevent the malfunctioning of this device.


How does a progressive distributor work?

To distribute the lubricants to the application that is connected to the progressive distributor through the lubrication points, there are three main steps to follow, including the lubricant in, the lubricant out, and the lubricant retrieving.

1. Lubricant in
The first step of distributing the lubricant is to receive the material of the lubricant from the source, which is the pump, through the inlet on one side of the plate, so as to let the lubricant flow into the distributor.

2. Lubricant out
Once the distributor receives the lubricant from the pump, the piston would move with the given pressure, in order to push and feed the lubricant inside the block to the connected application through the lubrication points.

3. Lubricant retrieving
After the lubricant is successfully dispensed to the connected application, the piston would move to its initial position, and the remaining of the lubricant would be stored in the distributor or released back to the pump for the next distribution.


What to consider when installing a progressive distributor?

When installing a progressive distributor to the connected application, there are some things to be considered in order to make sure the distribution of lubricant can go smoothly without problems.

The first and foremost must be the cleanliness of the components, including the inlet and outlets of the distributor, since the lubricant may be blocked when there is dirt inside the inlet or outlets.

Furthermore, make sure each port of the distributor is tightly attached to the parts that are supposed to provide or distribute the lubricant, because it may result in leakage if the connecting points are loose.

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