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China coal 2012 hot sale W steel belt

Jining Hengwang Mining Machinery Co., Ltd.
Jining Hengwang Mining Machinery Co., Ltd.
City: Jining
Province/State: Shandong
Tel: 86-537-13563796657
Contact Person: alise

China coal 2012 hot sale W steel belt

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China coal 2012 hot sale W steel belt

W steel belt

Introduction of W-section steel belt :

W-section steel belt is a new kind of mine coal roof support material .this products are used with all kinds of rock bolt together to make a kind of roof support under the coal mine. This kind of combination make those rock bolt that dispersive that connect together to form a whole bearing structure. W-section steel belt is also called roof steel strap ,is made from high strength alloy through cold pressing .W-section steel belt is widely used underground coal mine roadway, working surface to cut the eye, cave chamber tunnel and other roadway support, especially to deal with those instability surrounding rock having very good function .

Techincal paremeters :

MODEL

WIDTH(mm)

HEIGHT(mm)

BORE DIAMETER(mm)

BREAKING FORE(kn)

THEORETICAL WEIGHT(kg/m)

WD1

280

2.8

23.3

40>284

6.48

WD2

280

3

23.5

40>3.4

6.95

Technical characteristic (compared with common steel belt):

  1. raw material is high-strength alloy
  2. having higher rigidity and strength
  3. bending resistance ability is 54 times higher than others kind
  4. sclerification through cold pressing process can improve strength extension 28-46%.

The standard of W-section steel strap:

Width:140,160,180,200,220,240,250,270,280,300,320,

Thickness:2.5-6.0

Length and picth are made according the customers’ requirements.



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