Technical specification

SP-220 ; SP-270 ; SP-320 W-straps have a similar design. They differ only in terms of steel sheet thickness and section width. There are deformations for added strength and appropriately spaced holes along the straps (round or oval as requested). It is possible to connect two or more mats cross wisely or length wisely.

In terms of a range of application and production method the mats can be divided into the following types:

  • W – strap type SPs
  • W – strap type SPo
  • W – strap type SPp

An attachment unit can be used for suspending elements of mining equipment, e.g. cables, pipes, etc.
Its maximum load capacity is 2.5 kN.


Technical data

W-strap typeSP-220SP-270SP-320SPsSPoSPp
Working width 220 mm 270 mm 320 mm 275 mm    
Overall width 270 mm 320 mm 370 mm 275 mm    
  2 ; 2,5 ; 3
2 ; 2,5 ; 3
2 ; 2,5 ; 3
2 mm 1 mm 2 mm
  500 ; 800 mm (or according to customer’s specification) 350 ; 500 ; 800 mm (or according to customer’s specification)        
Hole diameter ø45 lub 45/80 mm ø45 lub ø75 mm        
Length 1000 ÷ 7000 1000 ÷ 7000 305      

SP-220, SP-270, SP-320, SPs, SPo, SPp W - straps have Certificate of Conformity No.81/3/2014 issued by "INOVA" Technical Innovation Center Ltd. in Lubin.



SW-straps type SP are used for crosswise and lengthwise support of roofs and ribs in mine working areas.
They are suitable to be used with expansion, resin, cable and tubular friction anchors.