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| main technical parameters of D440 | |||
| recommended aperture range | Drill arm type | High strength single straight arm | |
| Aperture range | Ø90 -130 mm | propulsion beam | |
| Suitable for DTH impactors | 3.5 inch / 4inch | Way forward | Motor chain propulsion system |
| lever change system capability | Overall length | 6,865 mm | |
| Number of poles | 7+1 | Advance the trip | 4,100 mm |
| Drill pipe outer diameter | 68 mm / 76 mm | Advance compensation | 1,200 mm |
| Drill pipe length | 3.5 m | Maximum propulsion speed | 0.85 m/s |
| Automatic rod change maximum hole depth | 28 m | Maximum propulsion | 15 kN |
| hydraulic rotary head | Maximum pulling force | 31 kN | |
| Swing speed | 0-105 rpm | chassis | |
| Maximum operating torque | 2800 Nm | Maximum two-speed walking | 3 km/h |
| engine | Maximum driving force | 115.4 kN | |
| Engine model | QC8.3 | Climbing ability | 30º (when greater than 20º, it is recommended to have a winch). |
| Rated power | 191 kW @ 2,000 rpm | Track frame swing angle | ± 10° |
| Emission class | 2 / Country 3 | Ground clearance | 450 mm |
| fuel tank | Shipping dimensions (without options), approximately | ||
| Capacity | 350 L | Weight | 15,000 kg |
| Air compressor | Width | 2,480 mm | |
| Maximum working pressure | 20 Bar | Length | 9,980 mm |
| Displacement | 16 m³/min | Height | 3,200 mm |
Mobile:Changsha:Yang-13875561579.Mr.Li-15173507148.Chenzhou:Li Qing-15173507148.Yang Liang-18573745211 Telephone:0735-2868788
Email:545143556@qq.com