KR90A Single Load Transportation Borehole Drilling Machine:
Reliable and Efficient
Product Overview:
1. Dedicated Hydraulic Retractable Crawler Chassis: The KR90A
drilling machine features a dedicated hydraulic retractable crawler
chassis and a large diameter slewing bearing. This design ensures
exceptional stability during operation and provides convenient
transportation.
2. Efficient Hydraulic Pressure System: The hydraulic pressure
system incorporates threshold power control and negative flow
control, resulting in high efficiency and energy conservation. This
system maximizes performance while minimizing energy consumption.
3. Certification: Our product has obtained GB certification and EU
EN16228 standard certification, demonstrating compliance with
stringent industry standards for safety and quality. This
certification ensures reliable operation and peace of mind for
customers.
4. Optimized Single-Cylinder Luffing Mechanism: The single-cylinder
luffing mechanism has been optimized to enhance performance and
efficiency. This structural improvement enables smoother and more
precise operations, reducing downtime and increasing productivity.
5. Two-Stage Mast Design: The KR90A is equipped with an optimized
two-stage mast design. This design enhances stability and
flexibility during drilling operations, ensuring efficient and
accurate drilling in various conditions.
| Performance Parameter | Unit | Value |
| Max. torque | kN.m | 90 |
| Max. drilling diameter | mm | 1000/1200 |
| Max. drilling depth | m | 28 |
| Working speed | rpm | 6~30 |
| Max. cylinder pressure | kN | 90 |
| Max. hoist capacity | kN | 120 |
| Main winch pull force | kN | 80 |
| Main winch speed | m/min | 75 |
| Auxiliary winch pull force | kN | 50 |
| Auxiliary winch speed | m/min | 40 |
| Max. cylinder stroke | mm | 3500 |
| Mast side raking | ° | ±3 |
| Mast raking forward | ° | 4 |
| System pressure | mpa | 34.3 |
| Pilot pressure | mpa | 3.9 |
| Max. walking speed | km/h | 2.8 |
| Max. pull force | kN | 122 |
| Operating height | mm | 12705 |
| Operating width | mm | 2690 |
| Transport height | mm | 3465 |
| Transport width | mm | 2690 |
| Transport length | mm | 11385 |
| Total weight | t | 24 |
FAQ
1: What is the Warranty of the Rotary Drilling Rig?
The warranty period for new machine is a year or 2000 working
hours, whichever comes first will be applied.
Please contact with us for detailed Warranty Regulation.
2: What's your service ?
We can offer professional technical support and good after-sale
service to you.
Modification methods will be different according to different
models and configurations of your owned excavators.
Before modifying, you need to provide configuration, mechanical and
hydraulic joints and others.
Before modifying, you need to confirm technical specification.
3: What can you buy from us?
Rotary Drilling Rig,Hydraulic Pile Breaker,Clamshell Telescopic Arm
