W Steel Strip for coal mine supporting

Specifications

W Steel Strip rock roof support
1. work with anchor bolt
2. high fittness and stiffness and tensile stength
3. low price

 

 What is W Steel Strip for support ?

 

1. A new type of structure and tunnel support materials

2. The product can be combined with all kinds of bolt joint organization bolting

3. In the incomplete roof strata, best to deal with instability of surrounding rock

 

Technical parameters                                                                                                                 

 

1.The raw material is high strength alloyed steel.

2.Used with rock bolts to provide extra support.

3.Restrain the loose of strata, especially the rock around the drilling hole.

4.Thickness:2.0-6.0mm

5.Width: 220mm,230mm,280mm,according to customer request.

6.Diameter of round hole is 30mm;long hole is 30mm*60mm and 30mm*70mm.according  to customer request.

7.Available in black or hot dip galvanized.

 

W steel strip roof support VS flat steel strip support                                                               

1. The bending section modulus increase 37 times

2. Stiffness increase about 70 times

3. Improving tensile strength of 12%—15%

4. The section utilization high saving material price is low

5. It can get closer with the surrounding rock

 

 

FAQ                                                                                                

1.Payment:

T/T (Telegraphic Transfer) or Western Union or L/C at sight

2.Delivery:

Based on order quantity, normally it takes 7-20 days for production.

3.Shipping

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.

4.Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.

5.After Services:

1. Our sales team will response for your question within 24 hours (Holidays Excluded)

2. Technical Support will be available in any time

3. Free replacement will provide once the failure confirmed caused by our product quality

 

Contact us                                                                                   

Sales Representative

Natalie Xu

Tel:86-537-2168637

Mobile: 86-15562286930

Fax:86-537-280280

Skype: Natalie.xu771

QQ: 1141196394

E-mail: bafang.machinery112 at

Jining Bafang Mining Machinery Co., Ltd.

Address:No.30 Jinyu Road, Jining City, Shandong Province, China

Website: /en/