70,000-100,000 lb Track Excavator
The 70,000-100,000 lb track excavator class spans 35 to 45 tons operating weight and defines the production threshold for highway construction and mass grading operations. These machines transition from loading highway dump trucks to serving off-road haul trucks on large earthmoving sites. With engine power from 172 to 344 hp and reach extending beyond 33 feet, this size class supports continuous, high-volume excavation and material handling.

Cat classes
Choisissez une classe de taille — la capacité et la portée varient selon la gamme.
Spécifications clés
| Spécification | Plage typique | Signification |
|---|---|---|
| Operating weight | 31,900–45,000 kg (70,400–99,200 lb) | Defines the 35-45 ton class; provides stability for large bucket forces and heavy production cycles. |
| Engine power | 172–344 hp | Powers hydraulic systems for continuous digging in dense material and fast cycle times under load. |
| Max dig depth | 19–25 ft (5.8–7.6 m) | Accommodates deep utility trenches, retention ponds, and multi-lift excavation below grade. |
| Max reach | 33.0+ ft | Enables loading into off-road truck beds and working across wide cuts without repositioning. |
Comment choisir
This size class is suited to highway construction, large commercial site development, and mass grading where production rate and the ability to load articulated dump trucks or off-road haul units matter more than mobility. When the project involves primarily highway dump trucks, smaller site footprints, or frequent relocation, the 50,000-70,000 lb Track Excavator offers easier transport and lower operating cost. For mine-scale earthmoving, quarry loading, or projects demanding bucket capacity above 3 cubic yards, the 100,000+ lb Track Excavator delivers the required production and reach.
Ce que cette taille peut gérer
- Highway widening and interstate reconstruction with multi-lane excavation
- Mass grading for industrial parks and distribution centers spanning dozens of acres
- Loading 30- to 40-ton articulated dump trucks in continuous earthmoving operations
- Deep sewer and stormwater trunk line installation requiring 20+ foot dig depth
- Retention basin and detention pond excavation with large-volume cuts
- Demolition of heavy commercial structures with high-reach attachments
Sécurité et opération
- Operators must maintain awareness of overhead utilities and clearance; boom height can exceed 25 feet at full extension
- Spotter or grade personnel required when loading haul trucks due to limited rear and side visibility from cab
- Ground conditions must support 10+ psi bearing pressure per track; slope stability critical when working near excavation edges
- Two-way communication systems standard on projects with multiple machines and haul units operating in close proximity
Transport et logistique
- Requires heavyweight lowboy or RGN trailer rated for 50+ ton combined load; most units exceed legal width without permits
- Transport typically arranged by specialized heavy-haul carriers due to weight, width, and permit coordination
- Loading and unloading demand reinforced ramps or dock-height access; ground-level drive-off sites must support concentrated axle loads
Alimentation
- Diesel fuel consumption ranges from 8 to 15 gallons per hour under continuous production; bulk fuel delivery typical on multi-week projects
- DEF (diesel exhaust fluid) required for Tier 4 Final emissions systems; consumption approximately 2-3% of diesel volume
- Hydraulic oil reservoirs hold 90 to 150 gallons; filtration and cooling systems sized for sustained high-flow operation
Questions fréquentes
What bucket size does this class typically use?
How does this size compare to the next class down for highway work?
What site access does this weight class require?
Comparer les modèles populaires
Chercher par spécification →Normalisé aux mêmes unités. Un tiret signifie que la valeur n'a pas été publiée.
| Modèle | Poids en service | Profondeur d’excavation max | Portée max | Puissance moteur |
|---|---|---|---|---|
| Case CX350C | 83,577 lb (37,910 kg) | - | 36.6 ft (11.2 m) | 268 hp |
| Komatsu WA500-7 | 77,129 lb (34,985 kg) | - | - | 357 hp |
| Hitachi ZX350LC-7 / ZX350LCN-7 | 80,138 lb (36,350 kg) | 22.5 ft (6.9 m) | 35.7 ft (10.9 m) | 282 hp |
| Hitachi ZX375US-7 | 78,485 lb (35,600 kg) | 22.7 ft (6.9 m) | 35.8 ft (10.9 m) | 264 hp |
| Hyundai Construction Equipment HX360L | 80,226 lb (36,390 kg) | 24.6 ft (7.5 m) | 36.5 ft (11.1 m) | 303 hp |
| Hyundai Construction Equipment HX400L | 88,979 lb (40,360 kg) | 24.3 ft (7.4 m) | 36.5 ft (11.1 m) | 339 hp |
Équipements connexes
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Sources
Chaque spécification est vérifiée par rapport aux données publiées par le fabricant, avec la source liée pour référence.
70,000-100,000 lb Track Excavator
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