Product Name:
Plastic Supporting Core With Polypropylene Reinforced For Telecom
Duct Installation
Product Description:
Plastic Supporting Core
Plastic supporting core is a spiral-structured supporting component
specially designed to support and expand various rubber products
such as rubber tubes, rubber sleeves, cold-shrink tubes and other
rubber fittings. As a key auxiliary part, plastic supporting core
provides stable and lasting expansion force to keep rubber parts in
an open and expanded state, which is convenient for installation,
transportation and later application in power and telecom projects.
Made of high-quality PP or PE raw materials, this plastic
supporting core features high structural strength, good toughness
and stable physical properties, ensuring long-term use without easy
breakage or deformation. The whole plastic supporting core is
processed by mature spiral forming technology, with uniform stress
distribution and excellent matching performance with rubber parts.
In addition to being used as an internal support for rubber
components, plastic supporting core can also be machined and
assembled into handles for hardware tools, bicycle grips, hand-held
equipment and other daily and industrial products, realizing
multi-scenario application.
Plastic Strip
Plastic strip is the special raw profile for manufacturing plastic
supporting core. Made of PP or PE material, it is the basic
semi-finished product for forming spiral plastic supporting core of
different diameters. Through automatic spiraling equipment, the
plastic strip can be processed into standard or customized plastic
supporting core efficiently and stably. It is compatible with
auto-buckled and welding processes, which can realize continuous
automatic production, with high welding joint strength and not easy
to deform after forming, laying a solid foundation for the stable
quality of it.
Product Application:
1. Plastic supporting core is mainly used as an inner supporting
and expanding part for cold-shrink rubber tubes, cold-shrink cable
terminals and cold-shrink joints in the power industry, providing
stable support to ensure the normal installation and use of power
cable accessories. It can effectively prevent the rubber parts from
shrinking in advance during transportation and construction,
ensuring the smooth progress of power engineering construction.
2. In the telecom industry, plastic supporting core is widely
applied in optical cable accessories, communication cable joints
and communication cold-shrink products, maintaining the expanded
shape of rubber parts to meet the construction requirements of
communication lines. It is suitable for various harsh construction
environments such as underground, outdoor and high-altitude, and
can maintain stable supporting performance for a long time.
3. Plastic supporting core can be used as the inner support
structure for various tool handles, including maintenance tools,
electric tools and manual tools. It can enhance the structural
strength of the handle, avoid deformation and breakage during use,
and improve the comfort and service life of the handle.
4. Plastic supporting core is also suitable for making bicycle
grips, scooter handles and other sports equipment handles. It has
the advantages of light weight, good toughness and stable
supporting effect, which can effectively improve the use experience
of the equipment and ensure the safety of users during use.
5. In industrial assembly and mechanical supporting fields, it can
be used as a general spiral supporting part for rubber hoses,
protective sleeves and other flexible parts. With good corrosion
resistance and anti-bioerosion performance, it can adapt to various
harsh industrial environments and has a long service life, reducing
the frequency of replacement and maintenance.
Product Features:
Plastic Supporting Core
Strong supporting force and stable structure, which can effectively
support and expand rubber parts and maintain their shape for a long
time.
High tensile and pressure resistance, not easy to break or
collapse, and has a long service life, which can meet the long-term
use needs of various industries.
Excellent corrosion resistance and anti-bioerosion performance,
suitable for use in humid, acidic and alkaline environments, and
not easy to aging.
Made of high-quality PP/PE raw materials, non-toxic and
environmentally friendly, in line with relevant industrial
standards.
Uniform structure, good matching with rubber parts, easy to install
and disassemble, improving construction efficiency.
Plastic Strip
Labor-saving and efficient in processing, which can reduce manual
operation links and improve production efficiency.
Excellent high and low temperature resistance, not easy to brittle
fracture at low temperature and not easy to deform at high
temperature, adapting to various climate environments.
High welding joint strength, not easy to deform or disengage after
forming, ensuring the structural stability of plastic supporting
core.
Suitable for continuous automatic production, which can realize
large-scale batch production and ensure the consistency of product
quality.
Available in auto-buckled type and welding type, which can be
selected according to the production needs and use scenarios of
plastic supporting core.
- 3 types of spiraling technology: auto-buckled type, hot air welding
type, ultrasonic welding type by 2 section profile types.
Technical Parameters:
Basic Parameters
Material: PP (Polypropylene)
Process: Auto-buckled type, Hot-air welding type, Ultrasonic
welding type
Length range: 70–1000mm
Customization: Non-standard sizes (diameter and length) are
acceptable
Plastic Supporting Core Specification Table
Product | Standard Inner Diameter (mm) | Length Range (mm) |
|---|
Plastic Supporting Core | Φ15, Φ32, Φ34, Φ38, Φ42, Φ46, Φ52, Φ60, Φ65, Φ70, Φ75, Φ85, Φ88,
Φ94, Φ104, Φ112, Φ120, Φ135, Φ150 | 70 – 1000 |
Product picture for your reference:





FAQ:
Q: What is the main use of Plastic Supporting Core?
A: It is mainly used to support and expand rubber tubes, rubber
sleeves and other rubber parts, and is widely applied in power
industry, telecom industry, as well as the production of tool
handles, bicycle grips and other daily and industrial products.
Q: What is the relationship between Plastic Strip and Plastic
Supporting Core?
A: Plastic strip is the special raw profile for manufacturing plastic
supporting core; It is the finished spiral product made by
spiraling, buckling or welding the plastic strip.
Q: What processes are available for Plastic Supporting Core?
A: There are two main types: auto-buckled type and welding type,
among which the welding type includes hot-air welding and
ultrasonic welding, which can be selected according to actual
needs.
Q: Is custom size available for Plastic Supporting Core?
A: Yes. Beyond the standard diameter and length range, we can provide
customized services according to the specific requirements of
customers.
Q: What are the advantages of Plastic Strip?
A: It has the advantages of labor saving, high and low temperature
resistance, high welding joint strength, not easy to deform, and
suitable for continuous automatic production, which can effectively
improve the production efficiency and product quality of it.
Q: What are the material options for Plastic Supporting Core, and how
to choose?
A: The available materials are PP and PE. PP has higher rigidity and
stronger supporting force, which is suitable for scenarios
requiring high structural strength; PE has better toughness and
excellent low temperature resistance, which is suitable for cold
environment or scenarios requiring good flexibility.