Kaishan Surface Drilling Rigs/Crawler DTH Drill Rig with Integrated Air Compressor Series
KT7H
The KT7H integrated surface DTH drilling rig integrates the down-the-hole drilling system and the screw air compressor system in one machine. It can drill vertical, inclined and horizontal holes and is mainly used in open-pit mines and stonework for blast holes and pre-splitting holes. It is powered by a Yuchai non-road diesel engine with a two-stage screw compressor and a hydraulic dry dust collection system, and covers a larger hole diameter range with a higher rotary torque.
Drilling capability — Rock hardness
f=6-20
Drilling capability — Drilling diameter
105-146 mm
Drilling capability — Depth of economical drilling
24 m
Travelling speed
0-4 km / h
Overview
The KT7H integrated surface DTH drilling rig integrates the down-the-hole drilling system and the screw air compressor system in one machine. It can drill vertical, inclined and horizontal holes and is mainly used in open-pit mines and stonework for blast holes and pre-splitting holes. It is powered by a Yuchai non-road diesel engine with a two-stage screw compressor and a hydraulic dry dust collection system, and covers a larger hole diameter range with a higher rotary torque.
Key highlights
- ✓Single diesel engine drives both the on-board screw compressor and the hydraulic transmission system through two-end output.
- ✓Integrated rig: the on-board screw compressor supplies the drilling air, no separate air compressor is needed on site.
- ✓Automatic rod handling system and drill rod lubrication module.
- ✓Hydraulic dry dust collection system; wet dust collection available as an option on larger models.
- ✓Automatic or electro-hydraulic anti-jamming control depending on model.
- ✓ROPS & FOPS protected cab with air-conditioning.
- ✓Capable of drilling vertical, inclined and horizontal holes.
Applications: Used in open-pit mines and stonework for blast holes and pre-splitting holes.
Specifications
Request the current specification sheet for this model using the button above.
Drilling capability
| Rock hardness | f=6-20 |
| Drilling diameter | 105-146 mm |
| Depth of economical drilling | 24 m |
Other specifications
| Travelling speed | 0-4 km / h |
| Climbing capacity | ≤25° |
| Ground clearance | 430 mm |
| Power of complete machine | 191 kW / 2100 r / min |
| Diesel engine | Yuchai YC6A260-T301 |
| Screw compressor | 18 bar） |
Dimensions & weight
| Overall dimensions (L × W × H) | 8500×2400×2800 mm |
| Weight | 10000 kg |
Other specifications
| Rotation speed of gyrator | 0-90 r / min |
| Rotary torque (max) | 2800N·m（Max) |
Drilling capability
| Maximum push-pull force | 22000 N |
| Lifting angle of drill boom | Up 48°, Down 16° |
| Tilt angle of beam | 147° |
| Swing angle of carriage | Right 53 °,Left 52° |
| Swing angle of drill boom | Right 50°, Left 58° |
Other specifications
| Leveling angle of frame | Up 10°, Down 10° |
Drilling capability
| One-time advance length | 3590 mm |
| Compensation length | 900 mm |
Other specifications
| DTH hammer | 3 in、4 in |
| Drilling rod | φ64 / 76×3000 mm |
| Number of rods | 7+1 |
| Method of dust collecting | Dry type (hydraulic cyclonic laminar flow) |
| Method of extension rod | Automatic unloading rod |
| Method of drilling rod lubrication | Automatic oil injection and lubrication |
Applications
- Quarrying
- Construction
- Slope & bench drilling
Recommended packages
Air compressor match
Integrated rig — the screw air compressor is built into the machine, so no separate compressor unit is needed. Only confirm the onboard compressor rating (pressure and flow) matches your hammer size.
DTH hammer & bits
Match the DTH hammer class to your hole diameter: K3/K30C for 90-105 mm, K5/K50 for 135-165 mm — see the DTH hammer series page for the full ladder.
Need a complete drilling package? Request a rig + compressor + tooling quote →
Frequently asked questions
What applications suit the KT7H?
Quarrying, Construction, Slope & bench drilling.
Which air compressor pairs with the KT7H?
Integrated rig — the screw air compressor is built into the machine, so no separate compressor unit is needed. Only confirm the onboard compressor rating (pressure and flow) matches your hammer size.
Can the equipment be configured to my project?
Send your project details through the inquiry form and we will confirm the available configuration for the selected model before quotation.