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Grips for secondary bolting

Application

  • Grips are designed for secondary bolting of arches made out of V25, V29 and V36 shaped section.

Photos

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Technical specification

  • According to arch section shape there are following type of grips:

Arch type

Grip type

Rod thread

V25

U-V25-24

M24

V29

U-V29-24

M24

V36

U-V36-24

M24

 

Arch type

Grip type

Rod thread

V25

U-V25-20

M20

V29

U-V29-20

M20

V36

U-V36-20

M20

 

  • Grips are fixe by two bolts or by Bolt and hook screw M24 lub M20.
  • Grips are made of typical J25 ; J29 ;J36 type section.

 

Technical data

Grip width

 

V25 – 70 mm

V29 – 80 mm

V36 – 80 mm

 

Hole diameter

ø 26 mm – for M24 thread
ø 22 mm – for M20 thread

 

 

 

Grips for secondary bolting U-V25-24 ; U-V29-24 ; U-V36-24 and hooked screws M24 have Certificate allowing the product to be marked with the safety mark No. B/1160/2005 issued by Central Mining Institute in Katowice.

 

Grips for secondary bolting U-V25-20 ; U-V29-20 ; U-V36-20 and hooked screws M20 have Certificate allowing the product to be marked with the safety mark No. B/1194/2005 issued by Central Mining Institute in Katowice.