JK930 Hydraulic Surface Top Hammer Drilling Rig

JK930

Hydraulic Surface Top Hammer Drilling Rig

Borehole diameter: 76-115mm
Drill rod length: 3.66m
Max. drilling depth: 25m
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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.

Hydraulic Surface Top Hammer Drilling Rig
Hydraulic Surface Top Hammer Drilling Rig Hydraulic Surface Top Hammer Drilling Rig Hydraulic Surface Top Hammer Drilling Rig Hydraulic Surface Top Hammer Drilling Rig Hydraulic Surface Top Hammer Drilling Rig
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
    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.
  • Automatic rod changer
    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
    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
    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
    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
    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
    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
    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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