Pit Extension Risers
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                      Wilmac Pty Ltd have been producing the highest of quality, modular concrete pits for over 25 years,
             our designs are constantly being upgraded to guarantee our position as the best, in a very
             competitive market. 
            All of our concrete products are poured with 40mPa wet-mix concrete to Australian Standard AS
            1480-1974. What this means to you is a guaranteed problem free installation with no costly call backs
            for porous pit walls leaking or  collapsing as is often the case with some inferior products that are in
            the marketplace.

            Pit extension riser sizes are listed below and for depth adjustment we have a large range that allow
            for pit depths ranging from 450mm to 5000mm in 150mm increments.  Dimensions of standard
            extension risers are shown below:  
                                          Click on code for more detail

       Code        Internal Size             External Size   Weight (kilo)
       551R            450x450x150             650x650x150           90 
       553R            450x450x300             650x650x300           135 
       661R            600x600x150             650x650x150           101   
       663R            600x600x300             800x800x300           203   
       665R            600x600x450             800x800x450           304   
       961R            900x600x150             1100x800x150         124 
       963R            900x600x300             1100x1100x300        248          
       965R            900x600x450             1100x800x450          371 
       966R            900x600x600             1100x800x600          518
       969R            900x600x900             1100x800x900          630
       991R            900x900x150             1100x1100x150        158
       993R            900x900x300             1100x1100x300        315
       995R            900x900x450             1100x1100x450         563
       996R            900x900x600             1100x1100x600         833 
       999R            900x900x900             1100x1100x900        1013
       122R            1200x1200x200         1450x1450x200         450
       126R            1200x1200x600         1450x1450x600         1020
       128R            1200x1200x800         1450x1450x800         1238
       1210R          1200x1200x1000       1450x1450x1000        1350
       1212R          1200x1200x1200       1450x1450x1000        1575

 

           SPECIFICATIONS
ALL CONCRETE 40Mpa WETMIX CONFORMING TO AUSTRALIAN STANDARD AS1480-1974
ALLOW FOR STEP IRONS IN ALL PITS DEEPER THAN 1200 mm
SEATING BED TO BE COMPACTED TO ENGINEERS REQUIREMENTS   
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Questions or problems regarding this catalogue should be directed to Wilmac Pty Ltd.
Copyright © 1999 Wilmac Pty. Ltd. All rights reserved.
Last modified: Tuesday August 12, 2008.