Walker Magnetics CER SERIES - Manual (Page 14)

14
O.S. Walker Inc., CER Lift Magnet
LIFTING GUIDELINES (PLATE)
CER-12, CER-16, and CER-20 (plate)
MAGNET
MODELS
LOAD
THICK-
NESS
TYPE OF SURFACE CONDITION
CLEAN & SMOOTH
Similar to a Flat
(32 micro-inch RMS)
Ground Surface
.000” Max. Air Gap †
RUST OR SCALE
Similar to a Flat Hot
Rolled
Steel Surface
.010” Max. Air Gap †
(.254mm)
IRREGULAR OR ROUGH
Similar to a Flat Smooth
Cut File
.020” Max. Air Gap †
(.508mm)
Max. Load
(lbs.)
Max. Size
(ft.)
Max. Load
(lbs.)
Max. Size
(ft.)
Max. Load
(lbs.)
Max. Size
(ft.)
CER-12
NEVER LIFT ANY LOADS WITH ANY DIMENSION GREATER THAN 10 FEET
Over 2” 4000 - 3850 - 3475 -
*2” 4000 7 x 7 3850 6 x 7 3475 6 x 7
*1-1/2” 3500 7 x 8 3250 7 x 7 3000 7 x 7
*1” 2800 8 x 8 2600 7 x 8 2300 7 x 8
*3/4” 2100 8 x 8 2000 8 x 8 1900 7 x 8
*1/2” 1100 7 x 7 1050 7 x 7 1000 7 x 7
*3/8” 600 6 x 6 550 6 x 6 500 5 x 6
*1/4” 300 5 x 5 250 4 x 5 200 4 x 4
CER-16
NEVER LIFT ANY LOADS WITH ANY DIMENSION GREATER THAN 12 FEET
Over 2-1/2” 7250 - 6750 - 6250 -
*2-1/2” 7250 8 x 8 6750 8 x 8 6250 7 x 8
*2” 6000 8 x 9 5500 8 x 8 5000 7 x 8
*1-1/2” 5000 9 x 9 4600 8 x 9 4300 8 x 8
*1” 4000 9 x 10 3750 9 x 10 3500 8 x 9
*3/4” 2500 9 x 9 2300 8 x 9 2200 8 x 8
*1/2” 1300 7 x 8 1200 7 x 8 1100 7 x 7
*3/8” 750 7 x 7 700 6 x 7 600 6 x 6
*1/4” 350 5 x 6 300 5 x 5 250 4 x 5
CER-20
NEVER LIFT ANY LOADS WITH ANY DIMENSION GREATER THAN 15 FEE
Over 2-1/2” 10500 - 9800 - 9200 -
*2-1/2” 10500 10 x 11 9800 10 x 10 9200 10 x 10
*2” 10000 11 x 11 9500 10 x 11 9000 10 x 11
*1-1/2” 8000 11 x 12 7600 11 x 11 7200 10 x 11
*1” 5500 11 x 12 5200 11 x 11 5000 10 x 11
*3/4” 3000 10 x 10 2800 9 x 10 2600 9 x 9
*1/2” 1500 8 x 9 1400 8 x 8 1300 7 x 8
* LIFTING CAPACITY AFFECTED BY PEEL AND THICKNESS. SEE NOTES 1 & 4 OF THE “IMPORTANT FACTS” (PAGE 6 & 7) IN THIS INSTRUC-
TION MANUAL.
† SEE NOTE 6 OF THE “IMPORTANT FACTS” (PAGE 7) IN THIS INSTRUCTION MANUAL. ALSO READ RECOMMENDED LIFTING PROCEDURES
(PAGE 10).
Values shown are for maximum rated capacities when operating instructions and warnings are followed.
Values are based upon SAE 1020.
Higher alloy steels and other magnetic materials will require further reductions of these rated capacities.
(See Guidelines for the Reduction of Rated Lifting Capacity page 11.)