The use of ceramic insulating components has become an absolute necessary in order to meet with today's requirements in the field of Electrical Heating Engineering Technology, due to importance of high temperature, insulation, size limitations and safety standards.

In today's automobile, house hold and industrial appliances Ceramic parts are considered of most importance due to its typical properties such as, high temperature resistance, high die-electric, high mechanical strength and corrosion resistance.

The range of ceramic heater parts produced at Jyoti are Steatite Ceramic Interlocking type Insulating Beads in various shapes and sizes, Steatite and Jyalox 95P End Sealing Bushes for sealing the ends of tubular type electrical heaters. Steatite and Cordierite Ceramic Band Heater Insulators with single and multibore for manufacture of Electrical Band Heaters for plastic moulding machines.

Ceramic heater parts are produced from the proprietary developed ceramic recipes formulated from the most selected quality raw material to ensure that the components possess all the necessary physical, chemical and electrical properties as per the international quality standards.

All tools for ceramic heater components are manufactured in-house tool room and we welcome enquiries for specific type components.

We suggest before designing your end product, please consult us, to discuss about the components material, its geometry etc. So as to offer components at an economical cost made from most suitable ceramic material.

We provide all the necessary services required for developing suitable ceramic components for your application.

Steatite Ceramic Interlocking Insulating Beads

dome-head
PATT.NO. Ø D in (mm) Ø d in (mm) H in (mm) Approx Nos. per Kg Approx Mtrs. per Kg
1 3.50 1.40 3.50 14925 52.20
2 4.30 1.90 4.90 8403 33.60
3 5.30 2.50 5.70 5435 27.20
4 6.75 3.40 7.30 2625 15.00
5 8.30 3.50 8.50 1239 8.30
6 10.30 4.10 10.30 682 6.00
7 11.00 4.50 10.80 536 5.00
8 12.70 5.50 12.20 390 3.70
9 13.60 6.00 13.60 320 3.60
flat-head
10 6.80 4.35 7.30 3115 17.50
11 8.70 5.50 8.70 1412 10.60
12 10.50 6.30 10.50 1197 6.70
13 11.00 7.00 10.50 857 9.00

fish-spine
3 5.10 2.20 5.50 6250 26.00
4 6.50 3.50 6.15 3705 18.00
5 8.00 3.70 8.00 2000 11.00
Quantity Variation in Nos. per Kg = ± 5%

All Dimensions are in mm : Tolerances which are not specified are as per DIN 40680.

Normal tolerances are
  • Upto 4 mm ± 0.15 mm
  • From 6 to 8 mm ± 0.25 mm
  • From 4 to 6 mm ± 0.20 mm
  • Above 8 mm ± 3%

Steatite Ceramic End Sealing Bushes

ceramic_electric_heater_all_images
PATT.NO. Ø D Ø D1 Ø d H h Ref. Fig No.
ESB-1 6.75 5.70 2.65 10.80 4.45 [1]
ESB-2 7.00 6.00 2.70 11.00 4.50 [1]
ESB-3 6.85 4.95 2.80 10.90 4.75 [1]
ESB-4 8.20 6.40 4.50 11.00 5.00 [1]
ESB-5 8.40 6.50 4.20 11.20 4.30 [1]
ESB-6 8.00 6.30 3.40 10.20 4.00 [1]
ESB-7 8.00 5.30 3.80 7.75 2.50 [5]
ESB-8 8.00 5.75 4.00 8.00 3.00 [5]
ESB-9 8.50 5.75 4.40 8.00 3.00 [5]
ESB-10 7.90 5.80 3.30 7.00 3.95 [4]
ESB-11 10.65 8.95 3.50 4.00 2.00 [6]
ESB-12 6.50 4.50 3.30 9.00 2.40 [3]
ESB-13 8.15 6.30 4.35 11.00 5.00 [1]
ESB-14 6.90 5.30 3.60 10.00 4.50 [2]
ESB-15 10.60 8.00 4.35 12.25 5.00 [2]
ESB-16 8.20 6.35 3.20 11.00 4.00 [1]
ESB-17 7.70 5.60 3.20 9.00 4.00 [2]
ESB-18 6.30 4.70 2.80 8.00 3.00 [2]
ESB-20 8.00 5.80 3.30 10.00 3.40 [2]
ESB-21 10.65 5.95 3.50 4.00 2.00 [6]
ESB-22 6.50 4.50 3.30 8.50 2.40 [3]
ESB-23 8.70 6.00 3.50 7.20 4.20 [4]
ESB-24 6.90 5.25 3.50 10.00 4.50 [5]
ESB-25 15.00 11.00 5.80 15.50 4.50 [5]
ESB-26 10.60 8.00 4.90 12.70 5.70 [5]
ESB-27 11.50 9.50 5.50 12.25 4.10 [5]
ESB-28 9.50 6.00 1.50 17.00 10.00 [7]
ESB-29 6.30 4.30 2.75 7.00 2.50 [5]
ESB-30 7.60 5.80 2.20 10.90 7.90 [7]
ESB-31 7.60 5.80 2.20 13.85 8.00 [7]
ESB-32 7.30 5.70 4.00 12.00 4.00 [5]
ESB-33 8.00 5.50 3.20 7.00 2.00 [1]

All Dimensions are in mm : Tolerances which are not specified are as per DIN 40680.

Normal tolerances are
  • Upto 4 mm ± 0.15 mm
  • From 6 to 8 mm ± 0.25 mm
  • From 4 to 6 mm ± 0.20 mm
  • Above 8 mm ± 3%

Our design engineers are always at your service to assist you for use of insulators from the standards range. We can also develop custom design insulators for your applications if the required quantities are substantially large for economically viable production.

All the above features coupled with good mechanical qualities make Jyalox beads an ideal carrier of the heating element.

JYALOX 95 P-W (Pink - White) Aluminium Oxide End Sealing Bushes

PATT NO. Ø D Ø D1 Ø d H h
ESB - ALP - 101 06.10 04.40 02.65 05.90 02.70
ESB - ALP - 102 06.10 04.40 02.92 05.90 02.70
ESB - ALP - 103 06.50 04.80 02.65 06.20 02.70
ESB - ALP - 104 07.90 05.60 03.25 06.70 02.70
ESB - ALP - 105 10.50 08.00 04.70 08.00 03.70

All Dimensions are in mm : Tolerances which are not specified are as per DIN 40680.

Normal tolerances are
  • Upto 4 mm ± 0.15 mm
  • From 6 to 8 mm ± 0.25 mm
  • From 4 to 6 mm ± 0.20 mm
  • Above 8 mm ± 3%

LS (Large Size) Steatite Ceramic Band Heater Insulators

CHEMICAL COMPOSITION
SiO2 61.5 %
MgO 27.4 %
BaO 3.2 %
AI2O3 6.8 %
Others 1.1 %
PHYSICAL PROPERTIES
Colour Off White
Surface Finish Smooth
Density 2.70 ± 0.05 g/cm3
Bulk Density 1.60 ± 0.05 kg/ltr
Porosity Nil
Water absorption 0 %
Hardness on Moh's scale 7
Hardness on Vicker's scale 520 - 550 Hv5
Flexural Strength 3 P.B.(@Room Temperature) > 150 MPa
Compressive Strength (@Room Temperature) 850 MPa
Young's Modulus 120 GPa
THERMAL PROPERTIES
Co efficient of Linear Thermal expansion (Room Temperature to 1000°C) 8.5 x 10-6 K-1
Thermal Conductivity (@Room Temperature) 2.3 W/m K
Max Temperature of use (No Load Condition) 1100°C (2012 °F)
page5-upper-image

ELECTRICAL PROPERTIES
Dielectric Strength (@Room Temperature) 20 kV/mm
Dielectric Constant (@Room Temperature : 1MHz) 6
Dissipation Factor (@Room Temperature : 1MHz) 0.0012
Volume Resistivity (@Room Temperature) > 1013Ω.cm
  • • All dimensions are in mm.
  • • Dimension tolerances which are not specified are as per DIN 40680.
  • • Bow allowance 0.15 mm or 0.5% of the length whichever is greater.
page5-image

All Dimensions are in mm : Tolerances which are not specified are as per DIN 40680.

Normal tolerances are
  • Upto 4 mm ± 0.15 mm
  • From 6 to 8 mm ± 0.25 mm
  • From 4 to 6 mm ± 0.20 mm
  • Above 8 mm ± 3%

LS (Large Size) Cordierite Ceramic Band Heater Insulators

CHEMICAL COMPOSITION
SiO2 52 %
AI2O3 35 %
MgO 7 %
Others 6 %
PHYSICAL PROPERTIES
Colour Off White
Surface Finish Smooth
Density 2.27 ± 0.05 g/cm3
Bulk Density 1.35 ± 0.05 kg/ltr
Porosity Nil
Water absorption 0 %
Hardness on Moh's scale -
Hardness on Vicker's scale 515 Hv1
Flexural Strength 3 P.B.(@Room Temperature) 100 MPa
Compressive Strength (@Room Temperature) 300 MPa
Young's Modulus 80 GPa
THERMAL PROPERTIES
Co efficient of Linear Thermal expansion (Room Temperature to 1000°C) 3.0 - 3.5 x 10-6 K-1
Thermal Conductivity (@Room Temperature) 2 - 3 W/m K
Max Temperature of use (No Load Condition) 1200°C (2192 °F)
page6-image
ELECTRICAL PROPERTIES
Dielectric Strength (@Room Temperature) 5 - 9 kV/mm
Dielectric Constant (@Room Temperature : 1MHz) 5
Dissipation Factor (@Room Temperature : 1MHz) 0.004
Volume Resistivity (@Room Temperature) > 1012Ω.cm
  • • All dimensions are in mm.
  • • Dimension tolerances which are not specified are as per DIN 40680.
  • • Bow allowance 0.15 mm or 0.5% of the length whichever is greater.