Product Overview
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This high-purity alumina ceramic wire drawing holder is customized for metal wire drawing production lines. Made of 99% alumina ceramic, it features ultra-high hardness, excellent acid & alkali corrosion resistance, low friction and long service life. Precision CNC machining ensures stable wire guiding, effectively reducing wire scratching and breaking rate, widely used in copper, steel, stainless steel wire drawing equipment.
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1:Product Introduction
Our alumina ceramic wire drawing guide block is core wear-resistant spare part for wire drawing machines. Different
from wooden or plastic holders, alumina ceramic owns outstanding mechanical and chemical stability. It will not deform,
swell or corrode under long-term contact with cooling liquid, cutting down frequent replacement cost greatly. Custom
sizes, hole positions and grooves are available according to customers’ drawing requirements.
2. Core Advantages
- High Purity Material: 99% alumina ceramic, high density, Rockwell hardness ≥HRA88
- Superior Corrosion Resistance: Resist acid, alkali and cooling lubricant erosion
- Low Surface Roughness: Smooth inner groove, avoid wire scratch & fracture
- High Temperature Resistance: Working temperature up to 1600℃, stable in high heat drawing environment
- Long Service Life: Wear resistance 10x higher than wood & plastic parts, reduce downtime
- Custom Machining: CNC precision cutting, drill mounting holes, custom slot shape & size
Application
Mainly applied to various metal wire drawing machinery, including fine copper wire, stainless steel wire, steel
wire, alloy wire production lines. Serve as wire guide holder to fix and guide metal wire during drawing, keep
wire running straight and stable. Widely used in wire & cable factories, metal material processing plants, metal
drawing workshops.
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Thermal Conductivity @ 20°C
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Thermal Expansion a at 20–400°C
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Properties
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Unit
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95%Al2O3
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99%Al2O3
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99.5%Al2O3
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Dielectric Constant
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1MHz
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9.4
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9.9
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9.9
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Dielectric Strength
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V/m
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15 x 10 6
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15 x 10 6
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15 x 10 6
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Dielectric Loss
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1MHz
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4 x 10 -4
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4 x 10 -4
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4 x 10 -4
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Volume Resistivity @ 25°C
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Ω・cm
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>10 14
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>10 14
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>10 14
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Volume Resistivity @ 500°C
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Ω・cm
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>10 8
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>10 8
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>10 10
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Various Types of Alumina Ceramic Part
We Can Do OEM and 0BM According to Your Drawing and Requirements.
Features of alumina ceramic
* Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility.
Alumina Ceramic Properties
The following only lists the performance parameters of the three most common aluminum oxide ceramics. Normally, alumina ceramics
are composed of these types
Packing

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Hunan Yuanhong New Material Co.,Ltd was established in 2016 ,there are over 100 sets of ceramic professional equipments , several types of furnace in more than 8000 square meters production workshops. ISO9001 certified, a variety of advanced ceramic materials are ROHS and REACH certified. |
Q1: Can this ceramic holder replace wooden guide block directly?
A1: Yes, we can produce same size as your original wooden block, direct replacement without modifying machine.
Q2: Is it resistant to cooling liquid and acid lye?
A2: 99 alumina ceramic has excellent chemical stability, completely resistant to common drawing cooling fluid, acid and alkali liquid.
Q3: Do you accept small trial order?
A3: Yes, small batch sample order is welcome for customer test.