DW2-120 double-armed (hydraulic) rock drill trucks
Description
DW2-120 double-arm (hydraulic) rock drilling cart is a rock drilling equipment, using two sets of drilling arm for independent hydraulic system control without interference, the drilling arm can be retracted to cover a wide area, there is a set of cradle arm can be for loading, drainage, hanging nets and other auxiliary work to provide lifting platform. It is a special rock drilling equipment developed and manufactured for high-speed high-speed railway, water conservancy and hydropower projects, as well as national defense and other medium and large-scale tunnel boring and drilling operations to meet the needs of rock drilling and digging of a variety of holes, anchor holes, small conduit support, grouting holes, etc., the machine adopts a full hydraulic drive, electro-hydraulic proportional valve control system to control the drilling arm rock drilling, the action of the soft and smooth positioning quickly, fast rock drilling; full real-time hydraulic leveling arm to make the propulsion beam can be kept parallel in all directions. The full real-time hydraulic leveling arm makes the propelling beam keep parallel in all directions, and it is equipped with automatic anti-jamming, stopping the impact when the rock drilling is finished, and withdrawing the rod, etc.; the diesel engine is for walking, four-wheel four-wheel drive, strong power, and flexible in transferring, and the structure of the whole machine is compactly arranged, with a low center of gravity, flexible maneuvering, and a stable system, which not only improves the safety and efficiency, but also reduces the working intensity of the laborers.
Applicable range
Suitable for 6x5.5m-13.8x9.7m high-speed high-speed railway, water conservancy and hydropower projects, as well as national defense tunnels, etc.
Main features
High efficiency and high power hydraulic rock drill
● Adopting Swedish technology international brand rock drill, in order to consider the surrounding rock structure rock drilling, our company provides a variety of rock drill configuration for users to choose, different rock drill drilling cost is different, so as to obtain a higher rate of rock drilling, shorten the cycle time, extend the life of drilling tools, higher productivity, and lower drilling costs;
● Standard equipped with A18D/L high power rock drill, 18KW rock drilling power, almost able to cope with most of the rock conditions, with the double buffer system can effectively reduce the consumption of drilling tools, making the rock drilling and drilling work less expensive and more efficient, reducing operating costs; -A higher power rock drill can be selected according to the demand, which makes it possible to obtain higher rock drilling rate, shorten the cycle time, extend the life of drilling tools, higher productivity, lower rock drilling costs.
● Higher power rock drills are available to meet higher rock drilling requirements.
Hydraulic System
● Adopting international famous brand hydraulic system, each independent motor and pump group controls its own rock drill arm without affecting each other, and the optimized hydraulic system matches each movement gently and flexibly to make the operation more comfortable.
● Equipped with safety alarm system and self-diagnostic system, which makes the operation of the equipment more secure.
● The rock drill drilling system is equipped with a unique automatic anti-jamming function and automatic protection function of the drilling system (anti-jamming and anti-drilling two-level protection function to reduce the consumption of drilling tools).
Aluminum alloy advance beams for various hole depths
● According to the requirements, the propeller beams of 3700/4300/4915/5525/6400mm can be selected to fit different lengths of drill pipes.
● Aluminum alloy propeller beam has high bending and torsion strength and long service life.
● The surface of the propeller beam is covered with stainless steel skin to protect the propeller beam from damage, and PTFE (solid lubrication block) wear-resistant liner is adopted between the moving parts, so there is no need to do lubrication.
Fully hydraulic flat-action telescopic drilling arm
● With omni-directional parallel holding function and single-action function, single-handle direct positioning mode, it can quickly and accurately locate peripheral holes, trenching holes, anchor holes, over-head support holes, grouting holes, etc.
● With the screw cylinder drilling arm, it can be turned 360°;
● The drilling arm can be turned 360° by the screw cylinder.
Rectangular cross-section design for easy maintenance and better rigidity, and the telescopic function of the drilling arm enables a wide range of rock drilling.
International famous brand electronic control system
● International brand Schneider electronic control components are the main, to ensure the stability of the circuit system, but also to make the protection of the electronic control system more reliable.
Retractable and automatic leveling service cradle
● Equipped with an aerial service platform and a two-stage telescopic boom with wide coverage, which can be operated in the cradle or through the equipment operator's desk.
● Used for all kinds of aerial service work in medium and large tunnels.
Other systems and functions
● Air compressor: screw air compressor
● Water pump: centrifugal pressurized water pump
● Cable reel: Hydraulic control of take-up and take-down.
Specialized heavy-duty travel system for underground construction
● Adopt diesel engine for four-wheel drive, strong power output;
● Matching with imported DANA (Dana) or domestic famous brand drive axle, fully enclosed wet brake safety and reliability;
● Diesel engine for walking power, four-wheel drive tire walking, making the vehicle in the speed control, climbing ability performance is better, the maximum climbing capacity of the vehicle up to 14 ° (25%);
● Matching with MICO two-way brake valve control, which is sensitive and efficient, and makes the traveling safety higher.
Device view

Parameters
| Control System | |
| Rotation control | ● Adjustable rotation speed ●Reverse rotation |
| Automatic function | ●Hole opening ●Propulsion control impact ●Anti-jamming drill ●Hole washing ●Stop and return |
| Air compressor system | |
| Air compressor type | Screw type |
| Motor power | Centrifugal |
| Maximum displacement | 0.9m³/min |
| Work pressure | 8bar |
| Water system | |
| Motor power | 4.5Kw |
| Maximum flow | 165L/min |
| Maximum working pressure | 25bar |
| Drill boom | |
| Advance compensation | 1800mm |
| Extension and retraction of drill boom | 1800mm |
| Parallel hold | All-round |
| Propel the beam upside down | ±180° |
| Lifting angle | +65°/-45° |
| Swing arm angle | ±45° |
| Optional device | |
| Rock drill A18D/L, A22L/D, A25L | |
| Chassis: | Imported DANA/domestic (optional) |
| Double-deck slideway propulsion beam | |
| Plateau configuration | |
| Automatic fire extinguishing system | |
| Close the cab | |
| Water mist slag removal | |
| Rod extension manipulator/gripper | |
| Electrical system | |
| Total installed power | 122/162KW |
| Main motor power | 2×55 / 2×75KW |
| Voltage | 380V |
| Frequency | 50Hz |
| Startup mode | Star Triangle |
| Motor thermal overload protection | |
| Impact timer | |
| Digital voltage/current meter (inside the electric cabinet) | |
| Phase sequence indicator | |
| Power failure indicator | |
| Battery charger | |
| Transformer | 6KVA |
| Cable drum capacity | 80m |
| Hydraulic system | |
| Type of pump | A variable displacement pump of the impact, thrust and boom axial plunger type and a rotary gear pump |
| Oil pump unloading and starting | |
| Maximum system pressure | 230bar |
| Hydraulic oil tank capacity | 350L |
| Low oil level indicator with shutdown function | |
| Oil temperature gauge at the tank, temperature switch | |
| Filtration precision | 10μm |
| Oil filter indicator | |
| Stainless steel hydraulic oil and water cooler | |
| Hand priming pump | |
| Mineral based hydraulic fluid | |
| Hanging basket | |
| Arm telescoping | 4000mm |
| Parallel hold | All-round |
| Lifting angle | +60°/-35° |
| Swing arm angle | ±45° |
| Bearing capacity | 400kg |
| Chassis | |
| Engine | Cummins |
| Rated power | 125KW |
| Torque | 670N•m |
| Fixed seat with safety belt | |
| Articulated steering angle | ±40° |
| Four-wheel drive | |
| FOPS certified ceiling | |
| Hydrostatic power steering system | |
| Hydromechanical transmission | |
| Front axle | Domestic/imported |
| Rear axle | Domestic/imported |
| Front axle antiskid self-locking differential | |
| Tire | 14.00R24 |
| Departure angle | 16° |
| Angle of approach | 20° |
| Hydraulic front outrigger | 2 |
| Hydraulic rear leg | 2 |
| Parking brake | |
| Emergency and parking brake | |
| Fuel tank capacity | 110L |
| Electrical system voltage | DV24V |
| Battery | 2*120Ah |
| Driving light | 8×55W,24V |
| Work light | 2×500W,220V |
| Brake lights | |
| Centralized lubrication system | |
| Exhaust gas catalyst/silencer | |
| Fire extinguisher | |
| Level | |
| Maximum gradeability | 14° |
| Travel speed | 14Km/h |
| Horn, warning light and reversing alarm | |
Application



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