ABOUT CAMBCO

CAMBCO developed the first commercially available cambering machine for the structural steel fabricating industry in 1984 to camber beams at a fraction of the cost of mill or heat cambering.

CAMBCO cambering machines are now being used throughout the United States and internationally as far away as mainland China.  Following is an example of cambering man-hours and costs that can be expected.

CAMBERING MAN-HOURS AND COSTS USING A CAMBCO CAMBERING MACHINE

PROBLEM

Determine the man-hours required to camber fifteen W18x50 beams 35 feet long using a two man crew.  Each beam is to have 1 1/4" camber.  Note: Handling time to transport beams to and from cambering machine is not included.

SOLUTION

1. Time required to change spacers and flange support angles for new beam size = 20 minutes.
   
   
2. Time required, by trial and error on first beam, to determine total piston rod extension required to produce desired camber = 15 minutes.
   
   
3. Time required to camber remaining fourteen beams, i.e. picking a beam up off of one stack, placing it in the machine, extending piston rod to the amount determined in step 2, and then removing the beam from the machine and placing it onto a second stack @ 3 minutes per beam = 3 x 14 = 42 minutes.
   
   
4. Total time required = 20 + 15 + 42 = 77 minutes.
   
   
5. Total man-hours = 2 x 77 / 60 = 2.57 M.H.
   
   
6. Direct cost per beam @ $30.00 per M.H. = 2.57 x $30.00 / 15 = $5.14.
   
   
7. Direct cost per ton = ($5.14 x 15) / ((15 x 35 x 50)/2000)) = $5.87 per ton.