New Products

Spinmaster

In March of 2006, Contractors Materials Company installed its newest and most innovative piece of rebar fabrication equipment thus far. The SpinMaster, manufactured by KRB Machinery in York, Pennsylvania, and engineered by Arm-Tec of Oerbaek, Denmark, was the first machine of its type installed in North America. The SpinMaster literally ties together individual lengths of rebar with 12 gauge annealed wire into a single plane monolithic mat. Similar in construction to a “snow fence,” the rebar mat comes delivered to the jobsite in a convenient to handle “roll”. The roll of rebar is placed on continuous supports and rolled out into a single plane mat for the placing of either the longitudinal or transverse bar. Another roll is placed perpendicular to the first mat and rolled out into a mat that now provides both a longitudinal and transverse bar grid of the specified design.

The SpinMaster can handle #3 through #11 black and epoxy coated rebar from 10’-00” up to 60’-00” in length. (When fabricating epoxy coated rebar, the spools of black annealed 12 gauge tie wire is replaced with PVC coated 12 gauge annealed wire.) The length (or width) of the roll is determined by the material handling capability on the jobsite, the bay or deck width, but not to exceed five tons in weight. Precise spaing, or pitch, of the individual rebar is computer controlled allowing either a constant or variable pitch within the mat from a 2” spacing through an 18” spacing. Variable length bars can be used for stagger or offset.

Although generally thought to only have horizontal applications, SpinMaster mats have also been successfully used in Europe in vertical applications as well!

Obviously, the advantage of the roll mat is from the time saved in the efficient material handling and layout of the steel. Additionally, to keep the mats from moving from the hydraulic pressure of the placed concrete, only base bars to their high chairs and a couple of intersections in the four corners and center of the mat grid need to be tied. More efficient handling of the steel layout and far fewer rebar intersections to tie all save valuable construction time and money.

As with our preassembled rebar cages, keep your project ahead of schedule with preassembled rebar mats from Contractors Materials and MMI of Kentucky!

 

Features & Benefits

 

F: Preassembled mat of rebar in a “carpet” roll

B: Less material handling and placing labor (up to 80% savings)

Enhances accelerated project scheduling

Reduces construction time

 

F: Bars continuously tied @ 6’06” centers into single monolithic plane mat

B: Virtually no chance of individual bars being displaced by concrete hydraulic flow

 

F: Transverse and longitudinal grids formed by two intersecting perpendicular mats

B: Once placed, only a minimal number of intersections require tying.

 

F: Bar spacing or pitch from 2” up to 18 inches is computer controlled

B: Little chance of grid deviation from exact design specification

 

F: SpinMaster ties and produces #3 through #11 rebar mats

B: The ability to accommodate the majority of engineer designed reinforcement

 

F: There is virtually no manual labor involved in placing SpinMaster rebar mats

B: Less chance of lifting job related injuries.

Time savings

 

F: Minimal tying of rebar intersections required

B: Reduced potential of back injuries caused from continuous stooping to tie bar intersections.

Time savings

 

F: Timely delivery of rebar roll mats.

B: Reduced non-productive time

 

F: Can be used in certain vertical construction applications as well

B: Same as those in horizontal applications.

 

F: SpinMaster can successfully produce epoxy coated rebar mats as well.

B: The same precision and time saving benefits are available to projects sensitive to corrosion protection