Hydraulic Drilling Jumbos, HT82 (for Tunneling)
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Our hydraulic drilling jumbo is widely utilized in small to medium-sized underground metal mines, hydropower projects, highway/railway tunnels, and chemical industry applications. With exceptional rock adaptability (handling Protodyakonov hardness levels of f=6-16 or higher), this versatile machine operates efficiently in tunnels as narrow as 3.3 meters wide.
Key Features Include:
- 360° bi-directional (horizontal/vertical) rotation capability of the feed
- Dual functionality for both tunnel development and hole drilling
- Drifter
- Boom with double triangle floating support system
- Anti-jamming function
- Chassis with Yanmar 4-cylinder diesel engine
- Feed
- Control system
Model | HT82 | |
Applicable cross section | 3000x3000--5050x4500mm | |
Overall dimensions (L×W×H) | 10600x1650x2085 (2795)mm | |
Ground clearance | 320mm | |
Overall weight | 11500kg | |
Min. turning radius | Inner: 3450mm outer: 5450mm | |
Gradeability | 14° | |
Speed | ≤7.2km/h | |
Cable length | 70m | |
Drifter options | ||
Model | RC2200 | YYG18U |
Power | 21kW | 18kW |
Frequency | 55Hz | 57Hz |
Pressure | 120-220bar | 130-200bar |
Slewing system | Independent | Independent |
Slewing speed | 0-285r/min | 0-220r/min |
Torque | 720N.m | 1050N.m |
Feeder | ||
Total length | 4820/5262mm | 4820/5262mm |
Drill rod length | 3090/3700mm | 3090/3700mm |
Hole depth | 2770/3370mm | 2770/3370mm |
Weight | 550/610kg | 530/590kg |
Feed force | 13kN | 13kN |
Drill boom | ||
Boom extension | 1250mm | |
Horizontal hole coverage | Full coverage | |
Boom rotation | ±180° | |
Boom (lift/tilt angle) | 60°/-30° | |
Boom swing angle | ±35° | |
Boom weight | 1645kg | |
Water and compressed air system | ||
Max. flow rateof water pump | 4m³/h | |
Air displacement of compressor | 1m³/min | |
Electrical system | ||
Total power | 85.5kW | 65.5kW |
Main motor power | 75kW | 55kW |
Voltage | 380V (customized) | |
Chassis | ||
Engine | Yanmar diesel engine | |
Rated power (2200r/min) | 53.7kW | |
Torque (1650r/min) | 308N.m | |
Hydraulic system | ||
Closed circuit hydrostatic drive System Hydraulic direct control system Anti-jumping function |
Outside Dimensions of Jombo Drill with 3700 Feed - Side View

Turning Radius

Cross Section

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