Hydraulic Surface Top Hammer Drilling Rig
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JK930
- Borehole diameter: 76-115mm
- Drill rod length: 3.66m
- Max. drilling depth: 25m
JK930 Hydraulic Surface Top Hammer Drilling Rig
The surface top hammer drill rig is a versatile, heavy duty integrated hydraulic rock drilling machine developed for high-performance operation in demanding construction applications. It serves as a highly efficient drilling solution for small to medium-sized quarries.
With a low center of gravity and extensive boom reach, the drilling rig maintains high uptime even under harsh terrain conditions. It is equipped with a Montabert (France) rock drill and a high-efficiency screw air compressor, delivering reliable and durable operation. The integrated hydraulic drilling rig offers smooth operation, consistent hole drilling quality, and long service life, making it well suited for mining and engineering projects across a wide range of working conditions.
Technical Specifications
| Model | JK930 | |
| Hydraulic Rock Drill System | Borehole diameter | 76-115 mm |
| Drilling depth | Automatic rod change, max one-pass drilling depth: 25 m | |
| Type | Hydraulic percussion, independently controlled rotation, and automatic residue removal | |
| Impact power | 21kW | |
| Impact frequency | 38-41Hz | |
| Percussion pressure | Max.140bar | |
| Rotation rate | 0-145r/min | |
| Rotation torque | 883N·m | |
| Shank lubrication method | Mist lubrication | |
| Slag discharge method | Compressed air blowing | |
| Automatic Rod Changing System | Quantity of stored drill rods | 7pcs in carousel |
| Drill rod diameter | T45, T51 | |
| Drill rod length | 3660mm | |
| Air Compressor | Compressor type | Single-stage screw compressor |
| FAD (free air delivery) | 10m³/min at 8bar/hr | |
| Powertrain | Brand & Model | Cummins QSC8.3-C260-30 |
| Rated output power/rated Speed | 194kW/2200 RPM | |
| Diesel fuel tank capacity | 500L | |
| Boom | Boom type | Folding boom |
| Swing angle (left/right) | 25°/ 25° | |
| Vertical reach (hole opening) | Horizontal plane, up to 3.1m, down to 4.7m | |
| Horizontal drilling height | Max. 7m | |
| Vertical drilling coverage area | 17m² | |
| Feed | Feed length (including tip) | 7945mm |
| Feeding stroke | 4300mm | |
| Undercarriage | Track shoe width | 350mm |
| Ground clearance | 455mm | |
| Track oscillation | ±10º | |
| Max. tramming speed | 3.6km/h | |
| Gradeability | Max. 30° (winch recommended for gradients >20°) | |
| Dimensions (transport status) | Length | 11.8m |
| Width | 2.6m | |
| Height | 3.2m (front-mounted beam) | |
| Weight | Approx. 16.5 tons |
Main Components
- Rock Drill
- The drill rig is equipped with a French Montabert HC150 drifter, delivering 21kW of impact power for high penetration rates. The adjustable impact frequency function allows operators to match drilling parameters to different rock formations, improving efficiency while reducing operating costs. This configuration supports efficient operation across varied geological conditions.
- Undercarriage
- Configured with a maintenance-free four-wheel one-track travel system designed for construction machinery. The undercarriage supports a ±10° track oscillation angle, allowing real-time body angle adjustment during slope travel and drilling operations to enhance operator and machine safety. The crawler system offers strong mobility and high terrain adaptability.
- Folding Boom
- Reinforced folding drill boom design supports horizontal, vertical, and inclined drilling at multiple angles. The large drilling coverage area allows efficient operation in complex and harsh terrain environments.
- Air Compressor
- Air compressor is equipped with an Atlas Copco screw air end, delivering stable and reliable performance with low energy consumption to support continuous drilling operations.
- Feed Mechanism
- Motor-driven chain feed mechanism provides fast feed and lifting speeds with high operating efficiency. Fitted with an imported Eaton feed motor, ensuring stable performance and long-term reliability.
- Air Intake Filtration System
- Three-stage air filtration system ensures clean intake air for both the engine and compressor. The first-stage filter features automatic reverse air cleaning, eliminating manual disassembly and cleaning. This design reduces dust ingress caused by human handling and improves overall system reliability.
- Engine
- Powered by a Cummins QSC8.3-C260-30 engine with a rated output of 194 kW. The engine provides strong power output, reliable performance, and convenient maintenance.
- Feed Beam
- The feed beam is manufactured from specially pressed aluminum alloy and protected by stainless steel wear-resistant sleeves. This drill feed structure offers high strength and excellent straightness while keeping overall weight low, reducing load and improving operational reliability.
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