QMC 5056R

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 36” long Size may vary, aluminum construction
Minimum Frame Requirements

Minimum selection modulus per rail = 17.8 in.3

Minimum yield strength = 110 KSI

Weight Distribution
  Front Rear Total
Truck 10,790 7,100 17,890
Crane 4,420 20,080 24,500
Payload 4,790 6,820 11,610
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

25 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
6 78 54,400 54,400 54,400
8 73 54,400 54,400 54,400
10 68 48,900 48,900 48,900
12 62 42,600 42,600 42,600
15 54 33,200 35,700 35,700
18 44 26,000 30,700 30,700
20 36 22,600 27,000 27,800
24 0 17,300 17,300 17,300
40 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
10 78 44,700 44,700 44,700
12 75 38,400 38,400 38,400
15 70 31,800 31,800 31,800
18 65 26,200 27,300 27,300
20 62 22,800 25,000 25,000
25 53 17,000 17,400 20,700
30 43 13,400 12,400 17,000
35 30 10,200 9,300 11,100
39.5 0 8,100 7,400 8,100
56 Foot Boom
Working
Radius
Boom
Angle
Rated Load
Rear Side Front
15 77 29,800 29,800 29,800
18 74 25,400 25,400 25,400
20 72 22,900 23,200 23,200
25 66 17,100 17,500 19,000
30 60 13,400 13,400 15,800
35 53 10,300 9,400 11,300
40 46 8,100 7,400 8,100
45 37 6,500 5,900 6,100
50 27 5,300 4,800 4,700
54 0 4,400 3,900 3,600

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
Line Pull 9,080 18,160 27,240 36,320 45,400 54,480 0 0

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.