Owner's manual

17
O.S. Walker Inc., NEO Permanent Lifting Magnets
NEO-500 LIFTING GUIDELINES
(ROUND BARS & PIPES)
Values shown are for maximum rated capacities when operating instructions and warnings are
followed.
VALUES ARE BASED UPON AISI 1020 STEEL
Higher alloy steels and other magnetic materials will require further reductions of these rated
capacities (See page 11 for the Guidelines for the reduction of the Rated Lifting Capacities.)
NEVER EXCEED EITHER THE MAXIMUM LENGTH OR WEIGHT SHOWN FOR EACH
ROUND BAR/PIPE DIAMETER, WALL THICKNESS & TYPE OF SURFACE CONDITION
Round
Bar/Pipe
Diameter
Inches
Pipe
Wall
Thickness
Inches
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)
Maximum Length
Inches
Maximum Load
Pounds
Maximum Length
Inches
Maximum Load
Pounds
Maximum Length
Inches
Maximum Load
Pounds
10”
(254mm)
MAX. DIAM.
1/4” 25” 55 19” 41 16” 35
1/2” 46” 197 37” 157 30” 130
1” 55” 440 42” 342 29” 235
SOLID BAR 24” 550 18” 420 12” 285
8”
(203mm)
1/4” 32” 55 24” 42 20” 35
1/2” 59” 197 47” 157 39” 130
SOLID BAR 38” 550 29” 420 20” 285
6”
(152mm)
1/4” 43” 55 32” 42 27” 35
1/2” 80” 197 64” 157 53” 130
SOLID BAR 68” 550 53” 420 35” 285
4”
(101mm)
1/4” 66” 55 50” 42 42” 35
1/2” 126” 197 100” 157 83” 130
SOLID BAR 154” 550 118” 420 80” 285
2 3/4”
(70mm)
MIN. DIAM.
1/4” 98” 55 75” 42 73” 35
1/2” 157” 157 157” 157 130” 130
SOLID BAR 157” 264 157” 264 157” 264
NEVER LIFT ROUND BARS OR PIPES WITH:
A diameter LESS THAN 2.75 Inches or
A diameter GREATER THAN 10 Inches or
A wall thickness LESS THAN 1/4” (6.4mm) or
A length greater than shown in the Lifting Guidelines above
(Absolute maximum length 157” (4000mm)
† Air Gap = nonmagnetic separation between magnet’s lifting surface and load.