The complete specifications of the Rock Bolts being produced by us are:-

Rock Bolts         As per IS: 1786

MATERIAL USED         : S.A.I.L.’s T.M.T Fe 415 OR 500


                                   
SIZE                               : 25mm, 32mm & 36mm
LENGTH                        : from 3m to 9m long
THREAD                        : M24, M30, M33 & M36
                                       (Left & Right Hand Thread)

One end is threaded as per the requirement and other Concentrically Bevelled upto 2”

Bearing Plate      As per IS : 2062       
                                   

SIZE                           :150mm X 150mm X 10mm,
                                   200mm x 200mm x 12mm
                                   200mm x 200mm x 16mm
BORE                         :28mm, 34mm, 38mm




Nuts                           As per IS : 1367

SIZE                                                : M24, M30, M33, M36

Bevel Washers                 Size                                  :- O.D 45mm, I.D 28mm
                                                                                   :-  O.D 55mm, I.D 34mm
                                                                                   :- O.D 55mm,  I.D 38mm
                                      Thickness                             One end 14mm other 11 mm

Expansion Shell:-      
                                     for 25mm Rock Bolt              Tensile Strength 15 Tons
                                     For 32mm Rock Bolts            Tensile Strength 24 Tons
                                     For 36mm Rock Bolts            Tensile Strength 30 Tons.    

Couplers / Spacers / Centralizers  :-   Yield Strength > 125% of the TMT Bar
                                    For 25mm Rock Bolt            O.D 45mm, Length 8”
                                    For 33mm Rock Bolt            O.D 50mm, Length 8”
                                    For 36mm Rock Bolt            O.D 55mm, Length 8”                    

MITTAL ENGINEERING

Mittal Building , Ladowali Road Jalandhar - 144001 (PB) INDIA
Mob + 91- 98141-69069       E-mail - arunmittal51@gmail.com

Copyright © 2013 Mittal Steel Works - All Rights Reserved Web Designers