Conical Felting Needle | High-Strength Needle for Automotive, Geotextile & Filter Felt

Premium conical felting needles (strengthening needles) manufactured from high carbon steel, engineered with a tapered triangular cross-section and graded spiral barbs for maximum bending strength, reduced breakage, and superior needling efficiency. Ideal for automotive interiors, artificial leather, geotextiles, filter felt, and other high-demand needle-punched nonwoven applications.

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Technical Data

Key Advantages at a Glance

1. Greater Bending Force — Tapered triangular cross-section resists bending under heavy load

2. Reduced Breakage Rate — Gradual thickness transition minimizes stress concentration

3. Lower Heat Generation — Optimized barb geometry reduces friction at high punching speeds

4. Minimal Fiber Damage — Graded barbs (smaller near the tip) penetrate fibers gently

5. Extended Service Life — High carbon steel with precision heat treatment for superior wear resistance

Improved Penetration Efficiency — Consistent needle performance across the entire working length

Design & Construction

Our conical felting needles are precision-manufactured from high carbon steel and undergo rigorous heat treatment to achieve optimal hardness and toughness. Each needle features:

1. Tri-Leaf Tapered Cross-Section — The needle tip forms a conical triangular point perpendicular to the longitudinal axis. Every cross-section along the working part maintains a triangular profile, with the needle gradually thickening from tip toward the shank and the taper angle increasing distinctly.

2. Graded Spiral Barbs — Barbs along each of the three edges are size-graded: the closer to the tip, the smaller the barb. Multiple barbs are arranged in a helical (spiral) pattern along the three edges, with their tips oriented toward the needle point. This design ensures smooth, progressive fiber engagement.

3. Available Barb Configurations — Choose from G, GB, or B barb shapes to match your specific fiber type, fabric weight, and desired surface finish.

Technical Specifications

Parameter	Available Options
Product Name	Conical Felting Needle (Strengthening Needle)
Needle Gauges	20, 23, 25, 32, 36, 38, 40, 42
Needle Length	3", 3.5", 4", 4.5", 4.8", 6"
Barb Shape	G, GB, B
Material	High Carbon Steel
Brand	LEBON
Condition	New
Application	Needle-Punched Nonwoven Fabric
Use	Needle Loom / Needle Punching Machine

Customization: Other working-part shapes, machine gauges, barb configurations, and needle lengths can be manufactured to your specifications. Contact our engineering team for custom needle development.

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Conical Felting Needle | High-Strength Needle for Automotive, Geotextile & Filter Felt

Technical Data

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QINGDAO LEBON INDUSTRY CO., LTD.

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