QMC 7072C

ASME B30.5 / IMPERIAL 85%

Basis of Design
Item Description Remarks
Truck chassis Per customer
Driver weight 250 pounds Included in analysis
Fuel tank 100 gallons Included in analysis
Hydraulic tank 100 gallons Included in analysis, location may vary
Tool box 48” long Size may vary, aluminum construction
Minimum Frame Requirements

Minimum selection modulus per rail = 34.4 in.3

Minimum yield strength = 110 KSI

Weight Distribution
  Front Rear Total
Truck 10,990 7,230 18,220
Crane 5,530 23,430 28,960
Payload 3,480 3,340 6,820
Totals 20,000 34,000 54,000

Total axle limits shown are based on Federal D.O.T. regulations bridge formula.

Truck dimensions, weights, payload, and lifting performance representative of design baseline. Variations from information shown (truck weights, wheel base, front axle to back of cab, and more) may be accommodated and may result in adjustment of payload, payload size, and crane lifting capacity. Contact QMC Cranes with your requirements.

Load Chart

32 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
6 74 78,900 78,900 78,900
8 70 78,900 78,900 78,900
10 66 70,000 70,000 70,000
12 62 58,200 58,200 58,200
15 56 46,100 46,100 46,100
18 49 37,900 37,900 37,900
20 44 33,700 33,700 33,700
25 28 26,000 26,000 26,000
52 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
8 79 64,900 64,900 64,900
10 77 60,900 60,900 60,900
12 75 57,200 57,200 57,200
15 71 46,300 46,300 46,300
18 67 38,100 38,100 38,100
20 65 34,000 34,000 34,000
25 58 26,400 26,400 26,400
30 51 20,600 19,400 19,700
35 44 16,100 14,300 13,600
40 35 12,900 11,000 9,900
45 23 10,500 8,600 7,400
72 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
15 78 37,200 37,200 37,200
18 76 32,300 32,300 32,300
20 74 29,700 29,700 29,700
25 69 24,700 24,700 24,700
30 65 20,700 19,600 20,000
35 60 16,200 14,500 13,800
40 55 13,000 11,100 10,100
45 50 10,700 8,800 7,600
50 44 8,900 7,100 5,900
55 38 7,500 5,700 4,500
60 30 6,300 4,700 3,500
65 20 5,400 3,800 2,700
68 0 3,800 3,200 2,100

Red lines indicate transition from structural to tipping limits. Loads above the line are based on structural limits. Loads below the line are based on 85% actual tipping condition per ASME B30.5.

Wire Rope Capacity
Parts Line 1 2 3 4 5 6 7 8
Load Limit 11,280 22,560 33,840 45,120 56,400 67,680 78,960 90,240

Do not exceed parts of line ratings.

  1. Load does not include blocks, slings, and all other equipment used to handle objects being lifted.
  2. Load ratings are for zero degree list.
  3. Loads must be freely suspended.
  4. Rope: Rotation resistant, compacted strand, 9080 lb. capacity.
  5. This chart is only a guide and should not be used to operate the crane. Individual crane’s load chart, operating instructions, and other instructional plates must be read and understood prior to operating crane.