Compact all-hydraulic rotary percussion drill
This is a new compact self-propelled model from Koken Kogyo, the leading manufacturer of rotary percussion drills. It is equipped with the new dedicated drill head KD-450B, achieving both compactness and high power. The Arrow Junior 40 is a self-propelled rotary percussion drill that can be used in locations where working with large machines is difficult.
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basic information
Bore diameter: 125mm Rotational speed (high/low): 66/33rpm Torque (high/low): 2/4kN-m Impact rate: 2,000bpm Impact energy: 350J Thrust: 25kN Stroke length: 2,200mm Motor: 40kW/1,800rpm Transport dimensions (L/W/H): 5,900mm/2,000mm/2,300mm Weight: 5,500kg
Price range
P7
Delivery Time
Applications/Examples of results
- Various anchor construction - Various water well drilling (for groundwater purification measures, etc.) - Water drainage and grouting for tunnel construction - PS wireline method - Forward exploration and core sampling - Drilling of injection holes for ground improvement in urban areas - Slope stabilization anchors
Line up（1）
| Model number | overview |
|---|---|
| RPD-40C | Compact Rotary Percussion Drill Arrow Junior 40 |
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Company information
Our company celebrated its 70th anniversary in October 2017. For these 70 years, we have passionately dedicated ourselves to product development as a top manufacturer of boring machines and have strived to refine our technology as specialists in boring. As a result, we have gained significant trust from everyone as "the technology of mining research," leading us to where we are today. While leveraging our experience, we are committed to returning to our roots and fully dedicating ourselves to unique product development and the establishment of boring methods to meet the needs of the times. Moving forward, we will not rest on our historical achievements but will renew our spirit and advance reforms as "New Mining Research." We aim to build a stable management foundation and contribute to the realization of a vibrant and prosperous society, earning the trust and evaluation of everyone as we move forward together as one team. We kindly ask for your warm understanding and continued support.