Conical Hollow Plug – Conical Stopper – Hollow Plug

Hollow Conical Stopper: Product Description, Structure and Applications

What Is a Conical Stopper?

A conical stopper is a tapered plug with a gradually changing diameter from one end to the other. The tapered profile allows the stopper to enter a hole to the required depth and remain securely in position through elastic interference between the stopper and the hole.

Compared with a conventional cylindrical plug, a conical stopper can accommodate a range of hole diameters. This makes it practical for masking, covering and protecting openings during manufacturing, painting, coating, storage and transportation.

Conical Rubber Stopper

A conical rubber stopper is manufactured from flexible rubber materials and is suitable for applications where elasticity, easy installation and removal are required. The rubber body can conform to the hole surface and provide a secure fit.

Depending on the application, rubber materials can be selected according to required hardness, temperature resistance, chemical resistance and working conditions.

What Is a Hollow Conical Stopper?

For larger hole sizes, a solid conical stopper may require a relatively large amount of material. A hollow conical stopper provides an alternative by using a hollow internal structure while maintaining the tapered external shape needed to cover the opening.

The hollow design can reduce material consumption and may help optimize production cost, especially when manufacturing larger sizes. It remains suitable for applications where the primary purpose is hole covering, masking or protection rather than high-pressure sealing.

Hollow Stopper and Hollow Plug

The terms hollow stopper and hollow plug are commonly used to describe plugs with an internal cavity. The exact design can vary depending on the application, material and manufacturing requirements.

A hollow plug can be produced in silicone or rubber and may be customized in different dimensions, hardness levels and colors according to the customer's requirements.

Product Structure and Design

The main feature of this product is its tapered outer body. The larger end provides the main stopping surface, while the smaller end allows the component to be inserted into the opening.

The hollow internal structure reduces the amount of material required while maintaining the external conical profile. The actual holding force depends on the material elasticity, hole dimensions, stopper dimensions, tolerances and installation depth.

Key Dimensions

• Large outer diameter: determines the maximum hole size that can be covered.
• Small outer diameter: determines the minimum insertion diameter.
• Overall length: determines the available insertion depth.
• Wall thickness: affects flexibility, strength and material consumption.

Applications of Hollow Conical Stoppers

Hollow conical stoppers are suitable for a wide range of manufacturing and industrial applications where holes need to be temporarily covered or protected.

• Masking holes during painting and powder coating.
• Protecting openings during surface treatment.
• Covering holes during storage and transportation.
• Protecting internal openings from dust and contamination.
• Covering holes in mechanical components and equipment.
• Protecting openings during manufacturing and assembly processes.
• Temporary hole protection for industrial parts.

Why Choose a Hollow Conical Stopper?

The main advantage of a hollow conical stopper is its combination of a tapered shape and reduced material usage. For larger dimensions, the hollow structure can help lower the amount of rubber or silicone required during production.

• Suitable for a range of hole diameters.
• Easy to install and remove.
• Flexible rubber or silicone construction.
• Reduced material consumption compared with solid designs.
• Suitable for temporary masking and hole protection.
• Can be manufactured in different sizes and colors.
• Can be customized according to samples or drawings.

How to Choose the Right Hollow Stopper

1. Measure the Hole Diameter

Measure the diameter of the opening before selecting a hollow stopper. For conical designs, the hole diameter should fall within the stopper's applicable diameter range.

2. Check the Hole Depth

The depth of the hole should be considered together with the overall length of the stopper. The correct length helps ensure that the component can be installed securely without unnecessary insertion.

3. Select the Appropriate Material

Silicone and rubber offer different properties depending on the working environment. Consider temperature, chemicals, oils, weather exposure and required flexibility when selecting the material.

4. Consider Tolerance and Fit

Hole tolerances and stopper dimensions can affect the final fit. For new applications, testing samples before placing a large production order is recommended.

Technical Specifications

The following table presents available hollow conical stopper sizes and packing quantities.

Custom Silicone and Rubber Manufacturing

Giacongsilicone.com provides custom silicone and rubber manufacturing services according to customer samples, drawings and technical requirements. Depending on the product design, manufacturing methods may include compression molding, LSR injection molding and CNC machining.

Customers can request customized dimensions, materials, colors and packaging to meet specific production requirements.

• Rubber and silicone plugs
• Silicone Tapered Plug
• Step Plug
• Rubber masking plugs for powder coating
• Custom silicone and rubber manufacturing process

Frequently Asked Questions