Coated Diamond Wire Loop

Description

Core Wire

High-tensile steel spring wire serves as the core, available in diameters from 0.3 mm to 3.5 mm. It provides tensile strength up to 4400 N, maintaining loop stability at unidirectional speeds of 30–60 m/s. The wire’s fatigue resistance supports extended production runs.

Diamond Coating

Diamond grit is electroplated onto the core with controlled density. Three coating patterns are offered: full‑coated for uniform cutting force, semi‑coated for balanced chip removal, and segmented (structured) with exposed gaps to evacuate debris when cutting quartz or ceramics. Grit size and concentration are selected per application.

Endless Joint

The wire ends are joined via precision resistance welding, achieving joint strength equal to the base material. The smooth joint profile eliminates vibration during rotation, ensuring consistent cut quality and preventing premature breakage in continuous operation.

Custom Specifications

Loop circumference is customized from 1 m to 20 m to fit various wire saw models (e.g., Meyer Burger, Diamond WireTec). Diameter tolerance is ±0.01 mm, ensuring precise kerf width and compatibility with existing machine guides.

Advantages &Features

The unidirectional high-speed loop motion significantly eliminates reciprocating vibration, allowing users to double production throughput while maintaining precise geometric tolerances.

Advanced segmented coating design provides expansive chip-evacuation pockets, preventing slurry buildup and overheating to ensure continuous operation in high-volume production.

Superior diamond grit adhesion via specialized electroplating minimizes abrasive shedding, resulting in longer tool life and a substantial reduction in the total cost per cut.

Ultra-fine wire diameters enable an extremely narrow kerf, maximizing material yield from expensive ingots such as Silicon Carbide and Sapphire to increase overall profitability.

The seamless weld technology ensures a uniform cross-section, providing the operator with smooth, jitter-free performance that prevents fragile material from edge chipping.

Enhanced cold-cutting properties facilitate rapid heat dissipation, protecting sensitive crystal structures from thermal stress and reducing the risk of work-hardened layers.

Precise circumferential tolerance allows for quick installation on major machine brands, reducing equipment downtime and streamlining the transition between different project batches.

High-density diamond distribution ensures aggressive cutting force, enabling the processing of high-purity ceramics and quartz with zero compromise on edge quality or speed.

Optimized nickel matrix securely anchors diamonds until the end of service life. This prevents premature grit pull-out during high-load cutting, so you get the full value from every loop you purchase.

Parameter

Product Parameter

Coating Category	Outer Diameter (mm)	Core Wire (mm)	Working Tension (N)	Breaking Tension (N)	Recommended Length
Full Coating	0.3	—	60	115	1M – 30M
	0.35	—	75	150	1M – 30M
	0.5	—	100	200	1M – 30M
	0.6	—	115	270	1M – 30M
	0.8	—	210	440	1M – 30M
	1	—	250	500	1M – 30M
Threaded	0.5	—	33	100	1M – 10M
	0.6	—	36	115	1M – 10M
	0.8	—	51	210	1M – 10M
Segment	0.65	0.39	135	270	1M – 10M
	0.8	0.51	210	440	1M – 10M
	1	0.6	250	500	1M – 10M
	1.3	0.7	220	440	4M – 10M
	1.8	1	400	800	4M – 20M
	2.5	1.5	800	1670	4M – 20M
	2.8	2	800	3300	4M – 20M
	3	2	1600	3300	4M – 20M
	3.5	2.5	2200	4400	4M – 20M

Application

SiC Wafer Slicing

Precision dicing of 6-inch and 8-inch SiC ingots.

Quartz Tube Cutting

High-speed sectioning of large diameter quartz tubes.

Sapphire Brick Squaring

Squaring raw sapphire boules for optical window use.

Semiconductor Cropping

Trimming silicon ingot heads and tails efficiently.

Technical Ceramic Dicing

Cutting alumina or zirconia parts in mass production.

Optical Glass Shaping

Rapid shaping of K9 or BK7 glass for industrial lenses.

FAQ

What is coated diamond wire loop?

A coated diamond wire loop is an endless, closed-loop cutting tool consisting of a high-tensile steel core electroplated with industrial diamond particles . Unlike traditional reciprocating wires, this continuous loop design enables unidirectional high-speed movement (up to 80 m/s) for slicing hard, brittle materials like silicon carbide, quartz, sapphire, and ceramics with minimal kerf loss and excellent surface finish .

How long does coated diamond wire loop last?

Lifespan varies significantly based on the material being cut, wire diameter, and operating parameters . For example, a 0.7mm diamond wire cutting ceramics at 40-70 m/s typically achieves 1.6-2.1 m² of cutting area . Generally, most diamond wires last for several days of continuous use . Segmented coating designs can extend lifespan by 30-50% compared to full-coated wires due to improved chip evacuation .

Can coated diamond wire loop cut stainless steel?

While coated diamond wire loops can technically cut stainless steel, they are optimized for hard, brittle materials . Diamond wire excels on materials like silicon, glass, ceramics, and sapphire where traditional tools struggle . For cutting metals including stainless steel, consult with engineers to select appropriate wire specifications, as different coating patterns and grit sizes may be recommended for optimal performance .

Is coated diamond wire loop sharp?

Yes, the diamond particles embedded in the coating act as countless tiny cutting edges . Industrial diamonds, among the hardest materials on Earth, maintain their cutting ability throughout the wire’s life . The sharpness isn’t like a blade edge but rather an abrasive grinding action that gently removes material, producing clean cuts without chipping or cracking delicate workpieces .

What is the lifespan of coated diamond wire loop?

Lifespan depends on cutting conditions, material hardness, and wire thickness . Thicker wires generally last longer due to more diamond volume . For ceramics cutting, a 0.7mm wire yields 1.6-2.1 m² of cutting area . Most industrial users report several days of continuous operation before replacement . Segmented and thread-coated designs typically offer extended life compared to full-coated wires, especially for dust-generating materials .

How to secure coated diamond wire loop?

The wire loop must be properly tensioned on a compatible wire saw machine designed for endless diamond wires . Different wire diameters have specific working tension ratings—for example, 0.35mm wire operates at 75N working tension with 150N breaking tension . The loop circumference is customized to match your specific machine model . Consult your supplier to ensure correct tension settings for your equipment.

What is the coating on a coated diamond wire loop called?

The coating is called electroplated diamond coating, applied through an electrolytic deposition process . Three main coating patterns exist: full-coated (diamonds cover entire surface), segmented-coated (diamonds applied in spaced intervals with exposed gaps), and thread-coated (diamonds distributed in a helical/spiral pattern) . Each pattern serves different cutting applications based on material type and chip removal requirements.

What is coated diamond wire loop made of?

Coated diamond wire loops consist of two primary components: a high-strength steel core wire (typically alloyed special steel or stainless steel) and industrial diamond grit bonded via electroplating . The steel core provides tensile strength (ranging from 60N to 4400N depending on diameter) and flexibility . The diamond coating, available in various grit sizes and distribution patterns, performs the actual cutting action .