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Ceramic tube

Ceramic Roller Tube

  • Materials：Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
  • Sizes：Mini ID:0.3mm;Mini length:0.5mm;Max length: 4800mm
  • Delivery times：2 -25 days(depends on the quantity)
  • Precision：Ra 0.1um tolerance: 0.001mm... etc
  • Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation

Hotline

+86181-2297-4730

E-mail

admin@cerampart.com

Ceramic Roller Tube With Refractory Heat Temperature Alumina Ceramic Roller


As a Professional Advanced Technology Ceramic Manufacturers, 
Us Support To Customize Different Specifications Of Ceramic Components
 
Ceramic roller is produced by technical ceramics such as Alumina Oxide (Al2O3),Silicon Nitride (Si3N4), Zirconium Oxide (ZrO2) or Silicon carbide (SiC)... etc. which is suitable for the production of daily porcelain in the roller kiln and electric furnace.
 
Ceramic roller has excellent bending strength at high temperatures, products for fire within 1750 ℃ (extremely reliable thermal stability and excellent thermal shock performance.
 
Alumina ceramic roller is an essential component of modern high temperature roller kilns.
 
Ceramic roller is a kind of high temperature and high strength, high hardness, wear resistance, corrosion resistance and can be self lubrication of high temperature ceramics, using temperature as high as 1750 ℃, with excellent corrosion resistance, except hydrofluoric acid, and other kinds of acid corrosion, and alkali resistance, all kinds of metal corrosion, and it has excellent electrical insulation and radiation resistance.
 
Part of ceramic roller sizes:
Diameter (mm) Length (mm) Diameter (mm) Length (mm)
65--75mm 3000--4820 40mm 2000--3500
60mm 2700--4800 36mm 2000--3300
55mm 2700--4700 35mm 2000--3200
50mm 2400--4600 33.7mm 1800--3100
45mm 2200--3800 30mm 1600--3100
42mm 2200--3800 25mm 1600--3100

The ceramic roller of the above sizes , we have available stocks. We can also custom cut shorter lengths to your specifications. Other sizes available on request.

Product features：
1. The hardness
Alumina ceramic roller rockwell hardness of hra80-90, hardness is second only to diamond, far more than the wear resistance of steel and stainless steel.
2. Excellent wear resistance
Wear resistance is 266 times that of manganese steel and 171.5 times that of high chromium cast iron.Under the same working condition, the service life of the equipment can be extended by at least 10 times.
3. Light weight
Its density is 3.6g/cm3, only half of the steel, which can greatly reduce the load of equipment.
 

Ceramic materials:
· 95%--99.99% Alumina (Al2O3)   · Silicon Carbide   · Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)   · YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)...

Properties Units AL2O3 ZrO2 SiC Si3N4
Density g/cm3 3.65-3.93 5.95-6.0 3.12 3.23
Water absorption 0 0 0 0 0
Coefficientof thermal expansion 10-16/k 7.9-8.5 10.5 3 3.2
Modulus of elasticity young`s mod GPa 280-340 210 440 300
Poission`s ratio / 0.21-0.22 0.3 0.17 0.26
HV hardness hv MPa 1650 1300-1365 2800 1500
Flexural strength MPa 310 950 390 720
Flexural strength(700℃) MPa 230 210 380 450
Compressive strength MPa 2200 2000 1800 2300
Fracture toughness MPa*m1/2 4.2 10 3.9 6.2
Heat conductivity W/m*k 26-30 2-2.2 120 25
Electrical resistivity Ω*mm2/m >1016 >1015 >103 >1013
Max use temperature ℃ 1750 1050 1550 1050
Resistance to acid alkaline / high high high high
Dielectric constant / 9.6 29 9.66-10.03 /
Dielectric strength KV/mm 8.7 9 / /
Thermal shock resistance △T（℃） 180-220 280-350 230-260 /
Tensile strength MPa 248 250 / /

If a ceramic roller in specials of ceramics is required, please advise and we will be happy to quote. Larger or smaller size available by quotation.
 

Precision of manufacture
Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Precision process CNC maching,grinding,lapping
Surface finish Glazed,polishing or metallized
Visual quality:
1. No cracks,  no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface
Ceramic roller precision process:
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector

Additional Information:
·Discounts on large quantities of Ceramic rollers
·In stock items will typically ship in a few working days.
·Unit price and estimated ship dates will be calculated when the length and quantity are specified.
·The length and special sizes can be customized

Customization:
As a manufacturer of ceramic parts, we offer customization of ceramic roller of special sizes and shapes.High Precision, Fast Delivery Time, High Composition (with test report).Get a Quote On Your Customized Now!!  or attachs a specifications by EMAIL.

Lead time: 
10-20 working days after comfirmed order. the samples within 3 days
For more information about ceramics parts,please contact our engineers in time  >>>

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Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL：+8618122974730
MB：+86 181 2297 4730 Tel：+86 746 3386888
Skype：+86 181 2297 4730
Email：admin@cerampart.com
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City