Contact Us


  • Add:North of DunHuangShan Road, Huangdao district, Qingdao, China, 266426
  • Tel:0086 185 6260 8066
  • Mobile:0086 0532 8675 2210
  • Email:info@preciseball.com

Glass Balls for Pharmaceutical pumps


The high precision glass balls made by Shandong EROAD are being widely used on sprayers

Tel:0086 0532 8675 2210 Mobile:0086 185 6260 8066 Email:info@preciseball.com

Description


  • EDE-HP series glass balls are made of high-purity soda-lime glass or high-quality borosilicate glass. It has the highest precision, after a special grinding process.The accuracy can reach grade G40, the lot diameter variation is below 2.5um and the roundness tolerance is below 1.25um.The special production process makes it possible to produce the particle size between 1.5-50mm.

    Quality Characteristics:

    • Diameter range of high-precision glass balls: 1.5mm-50mm.
    • Variation of ball diameter VDws: ≤5um
    • Lot diameter variation VDwL: ≤10um.
    • Spherical deviation: ≤5um
    • Surface roughness Ra≤0.03um.
    • 100% diameter sorting

    Applications:

    *Valve– Sealing ball

    Its chemical resistance allows it to be used in corrosive media. As a valve ball, glass balls can be used in ink sacs, dispensers in the food and cosmetic industries. The metering pump is usually equipped with EDE-HP serial glass balls.

    *Ball bearing

    Because of its very good corrosion resistance and chemical resistance, it can be used in ball bearings.

    *Mixing ball

    EDE-HP type glass balls are used in the pharmaceutical industry mianly as mixing balls. For example, in order to fully mix the insulin suspension before using it, usually people place the borosilicate glass balls in the insulin refill and shaking, then the insulin concentration in the suspension can be made uniform, so that to give full play to the effectiveness of insulin.


Parameter



Physical Properties

Unit

Glass material

Borosilicate

Soda-lime

Density

g/cm³

2.23

2.5

Coefficient of thermal expansion

10-6/

3.2

8.6~9.0

Thermal shock performance 

T

280 good

Poor

Max thermal shock

160

180

Heat resistance

500

 

Chemical stability

 

Good

Poor

Mechanical load resistance

 

65-70

65

Hardness (HV)

HV

520

500

Visible light transmittance

%

92

81-88

360-400nm UV

%

90~92

 

Infra red transmission

%

90~92

 

Average specific heat

Jg-1k-1

0.98

 

Elastic modulus

KN/mm

64

72

Tensile strength

N/mm2

35~100

 

Operating temperature

1270

1020

Softening point

820

720

Annealing point

560

545

Strain point

520

515


CONTACT INFORMATION
  • 0086 185 6260 8066   0086 0532 8675 2210
  • Email:info@preciseball.com
  • Address:North of DunHuangShan Road, Huangdao district, Qingdao, China, 266426
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