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8750 Dragline

8750 Dragline

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Offering the highest levels of overburden removal productivity at the lowest total cost per tonne (ton), the 8750 is the flagship model of the Cat dragline product line. The first dragline of any kind to be successfully equipped with AC IGBT drive systems, we developed this superior technology for the sole purpose of making your workday more productive, predictable, and most importantly, safe.

Specifications

Bucket Capability
76-116 m3 (100-152 yd3)
Boom Length
109.7-132.5 m (360-435 ft)
Working Weight (Approximate)
5.8-7.5 million kg (13.1-15.9 million lb)

Electrical

Drag Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
Hoist Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
IGBT-AFE Inverter Cabinets
4 or 5 Water-Cooled
Walking Motors
4 × 932 kW (4 × 1,250 hp)

Dimensions/Working Ranges

Approximate Working Weight
5.8-7.5 million kg (13.1-15.9 million lb)
Boom Lengths
109.7-132.5 m (360-435 ft)
Bucket Capabilities
76-116 m3 (100-152 yd3)
Rated Suspended Load
226,800-344,736 kg (500,000-760,000 lb)

Weights – 22.9 m (75 ft) Base

Boom Length @ 39° (109.7 m/360 ft) – Ballast Weight, approximate
1000000.0 lb
Boom Length @ 39° (109.7 m/360 ft) – Net Weight, domestic, approximate with bucket
1.213E7 lb
Boom Length @ 39° (109.7 m/360 ft) – Working Weight, approximate with bucket
1.313E7 lb
Boom Length @ 39° (117.3 m/385 ft) – Ballast Weight, approximate
1280000.0 lb
Boom Length @ 39° (117.3 m/385 ft) – Net Weight, domestic, approximate with bucket
1.212E7 lb
Boom Length @ 39° (117.3 m/385 ft) – Working Weight, approximate with bucket
1.34E7 lb
Boom Length @ 39° (124.9 m/410 ft) – Ballast Weight, approximate
1427000.0 lb
Boom Length @ 39° (124.9 m/410 ft) – Net Weight, domestic, approximate with bucket
1.2203E7 lb
Boom Length @ 39° (124.9 m/410 ft) – Working Weight, approximate with bucket
1.363E7 lb

Electrical – 22.9 m (75 ft) Base

Drag Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
Hoist Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
IGBT-AFE Inverter Cabinets
4 Water-Cooled*
Swing Motors
7 or 8 × 932 kW (7 or 8 × 1,250 hp)
Walking Motors
4 × 932 kW (4 × 1,250 hp)

Base – 22.9 m (75 ft) Base

Bearing Area
4418.0 ft2
Bearing Pressure
137.9-147.5 kPa (20.00-21.40 psi)
Circle Rail Diameter
55.0 ft
Outside Diameter
75.0 ft
Rollers (average diameter)
14.0 in
Swing Gear (pitch diameter)
45.51 ft

Walking Mounting – 22.9 m (75 ft) Base

Bearing Pressure (@ 80% of working weight)
256.5-268.9 kPa (37.20-39.00 psi)
Combined Bearing Area
1960.0 ft2
Length of Step (approximate)
7.0 ft
Overall Width Over Shoes
106.0 ft
Shoe Width and Length
4.3 m × 21.3 m (14 ft × 70 ft)

Weights – 25.6 m (84 ft) Base

Boom Length @ 39° (109.7 m/360 ft) – Ballast Weight, approximate
614000.0 lb
Boom Length @ 39° (109.7 m/360 ft) – Net Weight, domestic, approximate with bucket
1.4545E7 lb
Boom Length @ 39° (109.7 m/360 ft) – Working Weight, approximate with bucket
1.5159E7 lb
Boom Length @ 39° (117.3 m/385 ft) – Ballast Weight, approximate
927000.0 lb
Boom Length @ 39° (117.3 m/385 ft) – Net Weight, domestic, approximate with bucket
1.4782E7 lb
Boom Length @ 39° (117.3 m/385 ft) – Working Weight, approximate with bucket
1.5709E7 lb
Boom Length @ 39° (124.9 m/410 ft) – Ballast Weight, approximate
1131000.0 lb
Boom Length @ 39° (124.9 m/410 ft) – Net Weight, domestic, approximate with bucket
1.4793E7 lb
Boom Length @ 39° (124.9 m/410 ft) – Working Weight, approximate with bucket
1.5924E7 lb
Boom Length @ 39° (132.5 m/435 ft) – Ballast Weight, approximate
1168000.0 lb
Boom Length @ 39° (132.5 m/435 ft) – Net Weight, domestic, approximate with bucket
1.471E7 lb
Boom Length @ 39° (132.5 m/435 ft) – Working Weight, approximate with bucket
1.5878E7 lb

Electrical – 25.6 m (84 ft) Base

Drag Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
Hoist Motors
6 to 8 × 1230 kW (6 to 8 × 1,650 hp)
IGBT-AFE Inverter Cabinets
4 or 5 Water-Cooled*
Swing Motors
8 or 10 × 932 kW (8 or 10 × 1,250 hp)
Walking Motors
4 × 932 kW (4 × 1,250 hp)

Base – 25.6 m (84 ft) Base

Bearing Area
5542.0 ft2
Bearing Pressure
131.0-140.6 kPa (19.00-20.39 psi)
Circle Rail Diameter
55.0 ft
Outside Diameter
84.0 ft
Rollers (average diameter)
16.0 in
Swing Gear (pitch diameter)
45.51 ft

Walking Mounting – 25.6 m (84 ft) Base

Bearing Pressure (@ 80% of working weight)
226.8-243.5 kPa (32.90-35.32 psi)
Combined Bearing Area
2560.0 ft2
Length of Step (approximate)
7.48 ft
Overall Width Over Shoes
121.65 ft
Shoe Width and Length
4.9 m × 24.4 m (16 ft × 80 ft)