Shanxi Kaisheng Plastic Co., Ltd. is one of the most reliable manufacturers and suppliers of hdpe silicon core tube in China. Please feel free to buy CE approved hdpe silicon core tube in stock here from our factory. All customized products are with high quality and competitive price. Contact us for quotation.
Product Overview
HDPE Silicon Core Tube is a communication conduit designed for fiber optic cable installation and protection. It combines a high-density polyethylene outer structure with an integrated silicon inner layer, providing a low-friction surface that helps reduce resistance during cable pulling or blowing.
Technical Specifications
|
Item |
Specification |
|
Material |
HDPE |
|
Inner Layer |
Silicon Core |
|
Application |
Fiber Optic Cable / Communication |
|
Standard Sizes |
32 / 40 / 50 / 63 mm* |
|
Supply Form |
Coil / Customized Length |
|
Standard Coil Length |
2,000 m* |
|
Color |
Black / Customized |
|
Customization |
Diameter, Wall Thickness, Length, Marking |
Key Procurement & Engineering Advantages
Tested friction coefficient ≤ 0.05, supporting blowing distances up to 50% longer while reducing splice points and installation costs.
Production shifts are tested to YD/T 848 and applicable protocols, covering MFR, reversion ≤ 3%, ESCR F0 > 48 hours, and tensile yield strength ≥ 20 MPa.
European extrusion lines provide controlled wall thickness and ovality for consistent supply to large-scale telecom projects.
Material Architecture: HDPE Protection + Silicon Core
|
Layer |
Function |
Procurement & Engineering Relevance |
|
HDPE Outer Layer |
Mechanical impact & UV resistance |
Provides high ring stiffness and tensile strength, ideal for trenching, directional drilling, and underground sub-duct deployment. |
|
Silicon Inner Layer |
Permanent low-friction conduit path |
Prevents micro-duct scratching and eliminates the need for manual lubricant injection during field blowing operations. |
|
Integrated Co-Extrusion |
Molecular-level layer bonding |
Prevents delamination or peeling of the inner silicon layer over decades of underground thermal expansion and contraction. |
Custom Engineering & Spooling Solutions
Key Customization Options
Color Coding & Co-Extruded Stripes: Custom base colors with permanent longitudinal identification stripes (red, blue, yellow, green) for multi-duct routing.
Custom Coil Lengths: Tailored continuous lengths up to 3,000 m+ to minimize splicing points and labor costs on site.
Laser Meter Marking: Wear-resistant laser printing for clear tracking of footage, batch numbers, and project codes.
Climatic Adaptations
High UV / Desert Zones: Optimized antioxidant and carbon black ratios for superior UV resistance.
Cold Climates: Enhanced low-temperature impact strength to prevent winter installation brittleness.
Spooling & Logistics
Heavy-Duty Drums: Fumigated wooden or reinforced steel-wooden drums built for harsh terrain and international freight.
Seamless Deployment: Drum dimensions engineered for standard cable-laying equipment to ensure smooth pay-off.
Engineering Support:
Send us your technical data sheet or tender requirements for a tailored customization plan and sample evaluation.
Installation & Application: Core Execution
★Handling & Setup
Acclimatization: Rest coils on-site for 24 hours to stabilize flexibility.
Tension Limits: Keep pulling force below the outer shell yield strength.
Bend Radius: Maintain a minimum radius of 20 times the outer diameter.
★Blowing & Sealing
Low Friction: The silicon layer (≤0.05) eliminates manual liquid lube.
Pneumatic Range: Match compressor pressure to extend blowing distance by 50%.
End Protection: Install dedicated end plugs immediately after cutting.
★Execution & Backfill
HDD Pullback: Use reamer sizes 1.3 to 1.5 times the duct diameter.
Trench Bedding: Backfill with fine, rock-free soil to distribute loads evenly.
Frequently Asked Questions
Q: Do your tubes comply with international standards like YD/T 848 and ISO?
A: Yes. Our production follows YD/T 848 telecom standards, with raw materials and physical metrics meeting ISO 4427 and ASTM D3350 benchmarks. Third-party inspection reports (SGS, BV) are available upon request.
Q: Can we customize colors and meter markings?
A: Yes. We support custom stripe colors for easy routing identification, along with laser-printed meter markings and company logos.
Q: What is the typical lead time for a 40ft container?
A: Standard production lead time is 10 to 15 days upon deposit confirmation, supported by our high-output extrusion lines.
Q: What payment terms do you accept for new global buyers?
A: We typically accept T/T (30% deposit with balance against the Bill of Lading copy) and irrevocable L/C at sight for qualifying volume orders.
Q: Can you provide samples for raw material and friction testing before placing a bulk order?
A: Yes, free short-length sample segments can be provided upon request for laboratory evaluation, with freight collect via your courier account.
Q: Are these ducts suitable for horizontal directional drilling (HDD) installation?
A: Yes, the high tensile strength and impact resistance of our HDPE outer layer make them ideal for trenchless HDD and micro-trenching projects.
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