What you’re referring to as “Bull Challenger 55 HP” is generally a local or mid-range Bull backhoe loader configuration (sometimes customized with engines like Ashok Leyland or similar). The closest official machine in this category is the Bull CH Challenger series, which gives us a very accurate idea of specs and performance.
⚙️ Engine & Power
Power range: ~50–76 HP class (your 55 HP falls in this category)
Engine type: Diesel, water-cooled
Some local builds use:
Ashok Leyland engine (high torque)
Or Kirloskar engine (company standard)
👉 Engines are tuned for low RPM + high torque, ideal for digging and loading.
🔧 Transmission & Drive
Synchromesh / shuttle transmission (Carraro system in standard models)
2WD or 4WD options
Smooth forward–reverse operation (important for loader work)
🔩 Hydraulics & Performance
Advanced hydraulic system (load sensing type)
Pump flow: ~130 L/min
High breakout force:
Bucket breakout: 8000+ kgf
Loader capacity: around 1800 kg
👉 This is what gives strong digging and lifting power.
🏗️ Excavator (Backhoe) Specs
Digging depth: up to 4.6 – 5.6 meters
Bucket capacity: ~0.23–0.27 m³
180°+ bucket rotation
🛞 Build & Dimensions
Operating weight: ~7.5 to 8 tons
Heavy-duty chassis (“Heavy Weight Champion”)
Industrial tyres (rear large, front smaller)
🚧 Uses
Construction (digging, trenching)
Road work & foundation
Loading sand, soil, gravel
Agriculture + site work combination
💰 Price (India Approx)
₹35 lakh depending on model & condition
⚙️ Engine & Power
Power range: ~50–76 HP class (your 55 HP falls in this category)
Engine type: Diesel, water-cooled
Some local builds use:
Ashok Leyland engine (high torque)
Or Kirloskar engine (company standard)
👉 Engines are tuned for low RPM + high torque, ideal for digging and loading.
🔧 Transmission & Drive
Synchromesh / shuttle transmission (Carraro system in standard models)
2WD or 4WD options
Smooth forward–reverse operation (important for loader work)
🔩 Hydraulics & Performance
Advanced hydraulic system (load sensing type)
Pump flow: ~130 L/min
High breakout force:
Bucket breakout: 8000+ kgf
Loader capacity: around 1800 kg
👉 This is what gives strong digging and lifting power.
🏗️ Excavator (Backhoe) Specs
Digging depth: up to 4.6 – 5.6 meters
Bucket capacity: ~0.23–0.27 m³
180°+ bucket rotation
🛞 Build & Dimensions
Operating weight: ~7.5 to 8 tons
Heavy-duty chassis (“Heavy Weight Champion”)
Industrial tyres (rear large, front smaller)
🚧 Uses
Construction (digging, trenching)
Road work & foundation
Loading sand, soil, gravel
Agriculture + site work combination
💰 Price (India Approx)
₹35 lakh depending on model & condition
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