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Rotation unit adopted the France technique. It was drive by dual hydraulic motors and changed speed by the mechanical style. It has the wide range speeds and high torque at the low speed.
The rotation unit has running steadily and transmission accurately, it has more advantages in the deep drilling.
The feeding and the lifting system use the single hydraulic cylinder driving the chain, which has long feeding distance and giving the convenient for the drilling.
Rig has high lifting speed, which can improve the rig’s efficiency and decrease the auxiliary time.
The mud pump control by the hydraulic valve. All kind of the handle is concentrate at the control set, so it is convenient to solve the accident at the down of the drilling hole.
The V style orbit in the mast cans sure the enough rigidity between the top hydraulic head and the mast , and gives the stability at the high rotation speed.
Rig has the clamp machine and the unscrew machine, so it is convenient for unscrew rod and decrease the work intensity.
For the hydraulic system to running more safely and reliably, it adopted the France technique, and the rotary motor and main pump both use the plunger type.
The hydraulic driving head can move away the drilling hole.
| Model | Crawler type hydraulic driving head rig | ||
| Fundamental Parameters | Drilling capacity | Ф56mm(BQ) | 1000m |
| Ф71mm(NQ) | 600m | ||
| Ф89mm(HQ) | 400m | ||
| Ф114mm(PQ) | 200m | ||
| Drilling angle | 60°-90° | ||
| Overall dimension | 6600*2380*3360mm | ||
| Total weight | 11000kg | ||
| Rotation unit | Rotation speed | 145,203,290,407,470,658,940,1316rpm | |
| Max. torque | 3070N.m | ||
| Hydraulic driving head feeding distance | 4200mm | ||
| Hydraulic driving head feeding system | Type | Single hydraulic cylinder driving the chain | |
| Lifting force | 70KN | ||
| Feeding force | 50KN | ||
| Lifting speed | 0-4m/min | ||
| Rapid lifting speed | 45m/min | ||
| Feeding speed | 0-6m/min | ||
| Rapid feeding speed | 64m/min | ||
| Mast displacement system | Distance | 1000mm | |
| Lifting force | 80KN | ||
| Feeding force | 54KN | ||
| Clamp machine system | Range | 50-220mm | |
| Force | 150KN | ||
| Unscrews machine system | Torque | 12.5KN.m | |
| Main winch | Lifting capacity(single wire) | 50KN | |
| Lifting speed(single wire) | 38m/min | ||
| Rope diameter | 16mm | ||
| Rope length | 40m | ||
| Secondary winch (used for taking core) | Lifting capacity(single wire) | 12.5KN | |
| Lifting speed(single wire) | 205m/min | ||
| Rope diameter | 5mm | ||
| Rope length | 600m | ||
| Mud pump (Three cylinder reciprocating piston style pump) | Type | BW-250 | |
| Volume | 250,145,100,69L/min | ||
| Pressure | 2.5, 4.5, 6.0, 9.0MPa | ||
| Power Unit (Diesel engine) | Model | 6BTA5.9-C180 | |
| Power/speed | 132KW/2200rpm | ||
The YDL-2B crawler drill is a full hydraulic top drive drilling rig designed mainly for diamond bit drilling and carbide bit drilling. It is also highly suitable for diamond drilling using wire-line coring techniques.
The rig offers different drilling depths based on the rod diameter: up to 1000m for Ф56mm (BQ), 600m for Ф71mm (NQ), 400m for Ф89mm (HQ), and 200m for Ф114mm (PQ).
The rotation unit adopts French technology, driven by dual hydraulic motors with mechanical speed shifting. It provides a wide range of speeds (from 145 to 1316 rpm) and high torque at low speeds, reaching a maximum torque of 3070 N.m.
It features a feeding and lifting system powered by a single hydraulic cylinder driving the chain. This setup offers a long feeding distance of 4200mm and facilitates convenient drilling operations.
It is equipped with a BW-250 three-cylinder reciprocating piston style mud pump. The pump has adjustable volume rates of 250, 145, 100, and 69 L/min, with pressure ratings of 2.5, 4.5, 6.0, and 9.0 MPa.
The power unit is a 6BTA5.9-C180 diesel engine, which delivers a rated power/speed output of 132KW at 2200rpm.
