Neo-500, Lifting guidelines (round bars & pipes), Values are based upon aisi 1020 steel – Walker Magnetics NEO-HV SERIES User Manual
Page 17: Type of surface condition
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.