Shenzhen Youseetech co., Limited
China Manufactory and Office: Heping Village, Fuyong Street, Bao'an District, Shenzhen City, Guangdong Province, China
+8613924609515
Whatsapp/Wechat/Linkedin +8613924609515
youseetech@youseetech.com
Colombia Office: Calle 48 # 53 - 53, Medellín, Antioquia, Colombia
+57 301 3164298
Whatsapp +57 301 3164298
Single and double knitting machine needles
YSBP 81 J can replace Fukuhara E316428C3BP81WR ，YSCP 81 J can replace Fukuhara E316428C3CP81WR
I. Complete Model Analysis
E316428C3CP81WR
E: E Series (Dedicated latch needle for computerized flat knitting machines)
316428: Basic Specifications (Machine size E31.6, needle bar thickness 0.42mm, needle type code)
C3: C-type long needle hook (suitable for fine gauge, high count yarn)
CP: C-type medium foot (standard needle)
BP: B-type low foot (compact needle)
81: Total needle length 81.0 mm
WR: Surface treatment (hard chrome plating + wear-resistant coating, rust prevention and friction reduction)
II. Core Specifications (Fukuhara Original Factory Standard)
| Parameter Items | Specifications: | Notes: |
| Model Number (Gauge) | E31.6 (≈16G) | 31.6 needles within 25.4mm, fine needle pitch |
| Total Needle Length (L) | 81.0 mm | Standard working length |
| Needle Bar Thickness (b) | 0.42 mm | Tolerance ±0.01 mm |
| Needle Hook Type | C3 type (long hook) | Suitable for Nm 40/2-80/2 high-count yarn |
| Needle Tongue | Spring-loaded automatic reset | Stable closure, long service life |
| Material | High carbon tool steel | Quenched and tempered, hardness HRC 60-62 |
| Surface Treatment | WR (hard chrome plated) | Wear-resistant, rust-proof, reduces friction |
| Applicable Models | Computerized flat knitting machine (12G-16G) | Compatible with Fukuhara, Stoll, Shima Seiki, Jisei, etc. |
| Packaging | 500 pieces/box | Original standard packaging |
III. Key Differences Between CP and BP Needle Pins (Core Selection Principle)
1. E316428C3CP81WR (C-type center pin)
Pin Height: Standard center pin (regular height)
Compatible Systems: 8-segment/10-segment standard electronic needle selector
Applicable Scenarios: General-purpose computerized flat knitting machines (most domestic/ (Imported Models)
Common Patterns: Flat Knit, Jacquard, Cable Knit, Transfer Knit
Most versatile, preferred choice
2. E316428C3BP81WR (Type B Low-Leg)
Stitch Height: Low-leg (approximately 0.8–1.0 mm lower than CP)
Compatible Systems: Thin-type knitting heads, compact needle selection mechanisms
Applicable Scenarios: Specific Fukuhara high-speed machines, small-head models
Requires low-leg needle height and reduced triangular impact
Must strictly match the original manufacturer's stitch height
IV. Fukuhara Original Manufacturer Selection and Usage Specifications
Machine Matching
Must be purchased according to the stitch type (CP/BP) specified in the equipment manual; otherwise, needle selection failure and needle breakage may occur.
E31.6 (≈16G) is only compatible with 12G–16G flat knitting machines and cannot be used across stitch lengths.
Yarn Compatibility
Recommended Yarn: Nm 40/2–Nm 80/2 (Cashmere, Silk, High-Count Cotton, Blends)
Avoid excessively coarse yarns (< Nm 30/2) to prevent needle hook deformation and breakage.
Installation and Maintenance (Fukuhara Standard)
The needle groove must be clean and free of burrs, and the needle latch must move freely without jamming.
Needle and cam clearance: 0.02–0.05 mm. Too large a clearance can cause skipped stitches, while too small a clearance can lead to wear.
Regular lubrication (using dedicated knitting machine oil) reduces friction wear between the needle and cam.
Quality Assessment (Original Manufacturer Standard)
Dimensional Tolerance: ≤±0.01 mm
Needle Latch Wobble: ≤0.02 mm
Surface: Smooth and free of scratches, needle hooks without deformation, uniform plating.