Ladtech, Inc.
Our Company Contact Us Offering a solution to the age-old problems associated with manhole adjustment rings.
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Sizes and Specifications - Sizes & Design Data

GRAPH INDICATES VARIOUS GRADES YOU CAN ACHIEVE FROM THE WEDGE/SLOPE ADJUSTING RING:
DESIRED GRADE   RING POSITION
4.100% = 0+0
3.075% = 0+45
2.050% = 0+90
1.025% = 0+135
0.000% = 0+180
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Adjusting Ring Wedge / Slope Grade Graph
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