Customized High Quality of Alloy Steel Hex socket Head Spring Plunger set Screw for automation equipment

Ball plunger:
The ball plunger is also called a spring plunger, or a positioning bead/column. It is a product that is equipped with a spring inside the screw to set the inner bead and pin to pre-stress and move up and down. Suitable for mechanical devices, fixtures, molds, automated machinery, etc.

The ball plunger is also called a spring plunger, or a positioning bead/column. It is a product that is equipped with a spring inside the screw to set the inner bead & pin to pre-stress and move up and down. Suitable for mechanical devices, fixtures, molds, automated machinery, etc.

As a component that can provide pressure and accurate positioning, the ball plunger can be fixed in various ways, and has a large press-in type and a thread-locking type. The thread has a locking groove and a hexagon socket. The press-fit housing has stainless steel and plastic. The cylinder itself has a long, short, standard type to accommodate the pressure and the fixed body. The spring is divided into light load and heavy load.

The ball is made of hardened steel or stainless steel, and it can also be made of synthetic material nylon, acetal resin (polyoxymethylene spring device) or phenolic resin. These materials provide high strength and durability with sufficient flexibility, depending on the requirements of the material to be used, such as the use of nylon ball heads for soft metal materials.

Installation tips:
Although it can be installed with a screwdriver or an hex wrench, most experts recommend the use of a special spring plunger wrench, especially for novices. Excessive compression of the spring and the risk of damage using the wrong tool.

As any technician knows, you should always work with the right tools. The biggest danger in installation is that the plunger spring uses too much torque. Although they are like bolts or screws, their bodies are hollow and they can withstand a certain amount of force. If in doubt, ask the supplier for the maximum installation torque.

Ball plunger quality standard:
The ball plunger should have precise end face pressure. By minimizing the thickness of the bushing pin head, long-lasting high-quality springs can be used to reduce the fatigue of the spring, increase its service life, and be easy to install. The height at which the ball head of each plunger protrudes from the plunger body must be uniform.

For precise machining control and rigorous testing procedures, it is important to ensure that the dimensional difference between the heights of each plug head is not more than 0.1 mm. Some specifications must not exceed 0.05mm.