[RIGGER’S CORNER]
TEST YOUR RIGGING KNOWLEDGE
As you may be aware ASME B30.9 (Slings) and ASME B30.26 (Rigging Hardware) requires that the users of slings and rigging hardware be trained. And now we have the OSHA Subpart CC-Crane and Derrick Standard in Construction 1926.1400 that requires a “Qualified Rigger” in several applications. Tus, I have a few rigging questions to test your knowledge. Good Luck and Rig Safe!
After reviewing the load and rigging scenario please choose the best answer for each question or statement below.
FIGURE 1 WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 5
WIRE ROPE SIZE INCHES
BASED ON 6 X 19 AND 6 X 36 EIP STEEL, IWRC (FOR FIBER CORE DEDUCT APPROXIMATELY 15%) WITH DESIGN FACTOR OF 5
WIRE ROPE SIZE
WIRE ROPE SIZE
WIRE ROPE SIZE
INCHES INCHES INCHES
WIRE ROPE SIZE
INCHES
SINGLE LEG (VERTICAL)
1/4 3/8
7/16 1/2
1/4 3/4 7/8
4/9 1/2
9/16 5/8 3/4 7/8 1
1-1/8 1-1/4
9/16 5/8
3/8 1-1/8 1
1-1/4
1/4 3/8
1/4 3/8
7/16 1/2
9/16 5/8
7/8 11
7/16 1/2
3/4 0.65 5.63/45.6 7.6
9/16 5/8 3/4 7/8
3.2 9/163.2 3.9 5.6
5/83.9 7/87.6 9.8
1-1/8 1-1/4
RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1.
RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1.
RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1.
1.9 2.5 3.2 3.9 5.6 7.6 9.8
RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1.
RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1.
FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER. FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER. FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER.
12.0 15.0
1.4 1.9 2.4 2.9 4.1 5.6 7.2 9.1
FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER. FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER.
3.9 5.1 6.4 7.8
11.0
11.0 15.0 20.0 24.0 30.0
3.4 4.4 5.5 6.8 9.7
2.7 3.6 4.5 5.5 7.9
13.0 17.0 21.0 26.0
11.0 14.0 17.0 21.0
2.5 3.2 4.1 5.0 7.1 9.7
1-1/8 12.01-1/812.0 1-1/4 15.01-1/415.0
1.41 9.8 12.0
15.0
SINGLE LEG (VERTICAL)
0.65 1/40.65 1.4
3/81.4
SINGLE LEG (VERTICAL)
1.9 7/161.9 2.5
1/22.5
0.65 1.4 1.9 2.5 3.2 3.9
7.6 9.8
SINGLE LEG (VERTICAL)
WIRE ROPE SIZE
INCHES
SINGLE CHOKER
SINGLE LEG (VERTICAL)
SINGLE CHOKER
0.481/4 0.480.65 0.48 1.11.4 1.41.9 1.92.5 2.43.2 2.93.9
SINGLE CHOKER 4.15.6
3/8 1.1 7/161.4 1/2 1.9 9/162.4 5/8 2.9 4.1
5.67.6 7.29.8 9.112.0
11.0
3/40.48 7/8 5.6
1.1 1.4 1.9 2.4 2.9 4.1 5.6
1-1/89.1
1 17.2.7.21 9.1
15.0 11.01-1/411.0
SINGLE CHOKER
TWO LEG SLING VERTICAL
SINGLE LEG (VERTICAL)
SINGLE CHOKER
12.0 15.0
0.48 1.1 1.4 1.9 2.4 2.9 4.1 5.6 7.2 9.1
11.0
0.651.3 1.4 2.9 1.9 3.9 2.5 5.1 3.2 6.4 3.9 7.8 5.611.0 7.615.0 9.820.0 24.0
30.0
TWO LEG SLING VERTICAL 11.0
1.3 2.9 3.9 5.1 6.4 7.8
15.0 20.0 24.0
30.0
11.04.11.3 15.05.6
1.30.48 2.9 1.1 3.9 1.4 5.1 1.9 6.4 2.4 7.8 2.9
20.07.22.9 24.09.1
30.011.0 TWO LEG SLING VERTICAL TWO LEG SLING VERTICALTWO LEG SLING VERTICAL TWO LEG SLING VERTICAL
SINGLE CHOKER
15.0 20.0 24.0
30.0
1.31.1 2.92.5 3.93.4 5.14.4 6.45.5 7.86.8 11.09.7 13.0 17.0 21.0
26.0 1.1
13.015.0 17.02.5 26.0
21.024.0 26.030.0
13.0 17.0 21.0
20.0
9.71.17.9 9.7 7.9 11.013.011.0
HORIZONTAL SLING ANGLE 9.711.0
3.4 4.4 5.5 6.8
1.11.30.9 1.1 0.9 2.560°2.52.92.0 2.5 2.0 3.43.92.7 3.4 2.7 4.45.13.6 4.4 3.6 5.56.44.5 5.5 4.5 6.87.85.5 6.8 5.5
HORIZONTAL HORIZONTAL SLING ANGLE SLING ANGLE
60˚
TWO LEG SLING 60˚
TWO LEG SLING 60˚
TWO LEG SLING 45˚ 60˚ 45˚
TWO LEG SLINGTWO LEG SLING 45˚
TWO LEG CHOKER 60˚
45˚60˚
HORIZONTAL HORIZONTAL SLING ANGLE SLING ANGLE
0.9 2.0 2.7 3.6 4.5 5.5 7.9
HORIZONTAL HORIZONTAL SLING ANGLE SLING ANGLE
HORIZONTAL HORIZONTAL SLING ANGLE SLING ANGLE
TWO LEG SLING 0.8
HORIZONTAL SLING ANGLE 7.9
14.017.014.0 17.021.017.0
21.026.021.0
11.0 14.0 17.0
21.0
7.10.97.1 9.7
1.845°1.8 2.5 3.2 4.1 5.0
0.9 2.5 3.4 4.4 5.5 6.8
1.1 2.0 2.7 3.6 4.5 5.5 9.7
13.02.013.0 16.0
13.0 14.0 17.0
11.0 17.0 21.0
19.0 21.0 26.0
13.0 16.0
19.0
16.0 19.0
0.8
2.5 3.2 4.1 5.0
9.7
0.8 1.8 2.5 3.2 4.1 5.0 7.1 9.7
HORIZONTAL SLING ANGLE
TWO LEG CHOKER 60˚
TWO LEG CHOKER 60˚
45˚
HORIZONTAL SLING ANGLE
TWO LEG CHOKER 60˚
HORIZONTAL HORIZONTAL SLING ANGLE SLING ANGLE
HORIZONTAL SLING ANGLE
0.90.8 2.01.8 2.72.5 3.63.2 4.54.1 5.55.0 7.97.1 11.0 14.0 17.0
9.7
13.0 16.0
21.0 19.0
TWO LEG CHOKER 60˚
HORIZONTAL SLING ANGLE
TWO LEG CHOKER 60°
HORIZONTAL SLING ANGLE
HORIZONTAL SLING ANGLE 7.1
0.8 9.7
0.8 1.8 2.5 3.2 4.1 5.0
1.8 19.0
13.0 16.0
WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 5 APPROXIMATELY 15%) WITH 15%) WITH DESIGN F 5
WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 5 36 AND STEEL, EIP STEEL, IWRC (FOR FIBER CORE DEDUCT
BASED ON 6 X 19 AND 6 X 36 EIP STEEL, IWRC (FOR FIBER CORE DEDUCT APPROXIMATELY 15%) WITH DESIGH FACTOR OF 5
BASED ON 6 X 19 AND 6 X 36 EIP STEEL, IWRC (FOR FIBER CORE DEDUCT APPROXIMATELY 15%) WITH DESIGN FACTOR OF 5
BASED ON 6 X 19 AND 6 X 36 EIP STEEL, IWRC (FOR FIBER CORE DEDUCT APPROXIMATELY 15%) WITH DESIGN FACTOR OF 5
APPROXIMATELY DESIGN FACTOR OF ACTOR OF 5 5
WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 5 BASED ONBASED ON
WIRE ROPE SLING CAPACITIES - TONS (2000 LBS.) - FLEMISH EYE - ASME B30.9 5 6 X 19 AND 6 X 19 EIP 6 X 36 IWRC (FOR FIBER CORE DEDUCT
45º
1 TON BEAM WEIGHT
45º 5 TON LOAD WEIGHT
13.0 16.0 19.0
“RATED LOAD BASED ON PIN DIAMETER NO LARGER THAN ONE HALF THE NATURAL EYE LENGTH OR NOT LESS THAN THE NOMINAL SLING DIAMETER. BASKET HITCH CAPACITY BASED ON MINIMUM D/d RATIO OF 25/1. FOR CHOKER HITCHES, THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER.”
WIRE ROPE EXCHANGE JULY-AUGUST 2015 79
“FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD
FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.”
FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD
FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD
FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD
FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD
HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.
HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.
FOR SLING ANGLES OTHER THAN THOSE SHOWN, USE THE RATED LOAD FOR THE NEXT LOWER ANGLE OR A QUALIFIED PERSON SHALL CALCULATE THE RATED LOAD
HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.
HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.
HORIZONTAL SLING ANGLES OF LESS THAN 30 DEGREES ARE NOT RECOMMENDED. THE CAPACITY OF A BRIDLE AT A 30 DEGREE HORIZONTAL ANGLE IS SAME AS A SINGLE VERTICAL LEG.
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