HWRC400 Air-Lift Reverse Circulation Drill Rig
Drilling diameter: 105-305mm
Engine Power: 110Kw
HWRC400 Air-Lift RC Drill Rig – 400m Depth | Hengwang
HWRC400 crawler RC drill rig: 400m depth, 22T pullback force, reinforced 11T chassis. Built for deeper exploration programs than the HWRC350.
Product Intro
The HWRC400 trades a little maximum hole diameter (305mm vs. the HWRC350's 350mm) for greater depth capacity and a noticeably more robust chassis — at 11 tonnes it's nearly 50% heavier than the HWRC350, with 22 tonnes of pullback force versus 16 tonnes. That extra structural capacity is what lets it reach 400m reliably in harder or more variable ground. Choose the HWRC400 over the HWRC350 when your program needs the extra 50m of depth and you're working in formations where higher pullback force during rod tripping matters more than maximum bore diameter.
Technical Specifications
Parameter | Value |
Max. Drilling Depth | 400 m |
Drilling Diameter | 105–305 mm |
Recommended Working Air Pressure | 1.2–3.5 MPa |
Recommended Air Consumption | 16–55 m³/min |
Drill Rod Length | 3 m |
Recommended Drill Rod Diameter | 89 / 102 mm |
Max. Rotation Torque | 8000 / 4000 N·m |
Max. Rotation Speed | 75 / 150 rpm |
Feed (Spindle) Force | 6 T |
Pullback / Hoisting Force | 22 T |
Fast Hoist / Feed Speed | 20 / 32 m/min |
Penetration Rate | 10–35 m/h |
Travel Speed | 2.5 km/h |
Gradeability | 21° |
Machine Weight | 11 T |
Overall Dimensions (L×W×H) | 7 × 1.85 × 2.86 m |
Engine | Yuchai, Tier II, 92 kW |
Applications
● Medium-depth mineral exploration in harder or more variable formations
● Water well and monitoring well drilling beyond 350m
● Programs prioritizing rig stability and pullback force over bore diameter
FAQ
Q: How is the HWRC400 different from the HWRC350?
A: The HWRC400 reaches 50m deeper and offers 22T of pullback force (vs 16T) on a heavier, more rigid chassis, but its maximum hole diameter is smaller — 305mm vs 350mm.
Q: Can the HWRC400 use the same drill pipe as the HWRC350?
A: Yes, both use 89/102mm drill rod, so tooling can be shared across a mixed fleet.
Company Profile
Shandong Hengwang Group, founded in 2011 in the cultural city of Jining, Shandong, has grown into a comprehensive innovative technology enterprise integrating R&D, production, trade, and logistics. With a factory area exceeding 300,000 square meters and over 2,000 employees, the company completed and put into operation its billion-yuan Intelligent Manufacturing Base in 2024, reinforcing its strong manufacturing foundation.
Adhering to an "innovation-driven, quality-first" philosophy, Hengwang develops and exports over 40 categories of machinery products to more than 180 countries and regions. Holding over 200 patents and multiple international certifications, the company provides customers with integrated solutions and high-quality service, consistently striving towards its vision of building a century-old brand with outstanding value.
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