Product detail
- Brand Name: D miningwell
- Minimum Order Quantity: 1 Set
- Packing Details: 40HQ-20GP
- Delivery Time: 15-20 Days
- Payment Terms: L/C, T/T, Western Union
The Integrated Open Pit Crawler Down-the-Hole Drilling Rigs are advanced, high-performance machines designed for demanding quarry and mining operations, include the D450A and D460A model. Built on a proven platform, these crawler-type drilling rigs combine superior air flow and pressure capabilities, offering excellent drilling economy and enhanced productivity. Engineered for efficiency, reliability, and ease of maintenance, the DTH rigs are ideal for a wide range of drilling applications, including blasting holes, pre-cracking holes, vibration-damping holes, and ultra-deep hole operations.



At the heart of the D460A and D450A models is a powerful two-stage compression air compressor, optimized for energy efficiency. This compressor, paired with a high-torque rotary head delivering 2,800N.m of torque, enables fast and efficient rock drilling at high air pressure. The integrated drill rigs also boast exceptional fuel economy, providing both energy savings and reduced environmental impact. With their lighter weight and compact design, these rigs are highly portable, making it easier to transfer them between construction sites and quarry benches, further enhancing operational flexibility.
Features
These dth drilling rig machine for mining are equipped with a sturdy standard feed unit, facilitating smooth progression from production drilling to supplementary drilling roles. Integrating sturdy hammers positioned deep in the hole along with potent air compressors guarantees the rig's high effectiveness, even under the most extreme mining conditions. Engineered for endurance in substantial quarries, the D450A and D460A boast unmatched dependability and efficiency.
A number of crucial design elements distinguish these rigs. Equipped with standard 4-meter drill pipes, the rigs are designed to shorten the duration needed to replace the drill bit and enhance the rate of perforation. The engine's design for slowing down ensures precise positioning and substantial braking strength, guaranteeing precise adjustments in drill pipes. Featuring a forced lubrication oil pump, the screw compressor head's durability and performance are boosted through improved lubrication.
The crawler dth drilling rig's upkeep is simplified by an instinctive design, offering ample cabin space for effortless access to essential maintenance locations. The evident markings on oil pipes and cables guarantee maintenance is effortless. Prioritizing operator safety and comfort, the system offers an anti-roll mechanism, a cab with shock dampening, and features that minimize noise, complemented by environmental glass that ensures a wide-angle view of the work setting.
The D460A and D450A crawler dth drilling rigs also feature advanced electromechanical-hydraulic integrated controls, simplifying operation for the operator. The full LCD large-screen display provides real-time equipment status, and the system includes multiple alarms and automatic shutdown protection for safe and reliable operation. A high-powered dust collection fan, coupled with a large filter area, ensures optimal dust control, maintaining a clean and safe working environment.
Specifications
| Hole range: | Φ115 ‒ 152 mm | Hydraulic cylinder+ Steel rope feeding system | |
| Recommended DTH hammer size: | 4" / 5" | Total length: | 9,000 mm |
| Drill pipe handling capacity: | 6+1 | Travel length: | 5,600 mm |
| Drill pipe outer diameter: | Φ102 mm | Feed extension: | 1,300 mm |
| Drill pipe length: | 5 m (optional 6 m or 7 m) | Maximum Feeding rate: | 0.88 m / s |
| Maximum hole depth with Auto handling: | 35 m | Maximum feeding force: | 34.5kN |
| Rotation speed: | 0 - 105 rpm | Maximum pull up force: | 67.6kN |
| Maximum torque: | 4,435 N.m | Track frame: | with oscillation |
| Diesel engine: | Cummins | Maximum Tramming speed: | 3 km / h |
| L9CS4 400C | |||
| Rated power: | 294 kW ( 395 hp ) | Maximum Traction force: | 156.2kN |
| Emission standard: | Tier Ⅳ / Euro stage ⅣA compliance | Slope climbing ability: | 25° |
| Fuel tank Capacity: | 750 L | Track frame oscillation angle: | ±10° |
| Air compressor: | ZEGA ZGDB 138 III O-H | Ground clearance: | 420 mm |
| Maximum working pressure: | 21 bar (305psi) | Weight: | 22,000 kg |
| Capacity FAD: | 19 m 3 / min | Length: | 11,550 mm |
| Boom type: | Heavy duty single boom | Width: | 2,700 mm |
| Feed beam: | High strength aluminum alloy | Height: | 3,560 mm |
Application



Equipped with a standard feed unit, this workhorse model excels in production drilling and auxiliary drilling applications such as bottom hole drilling. The reliable down-the-hole hammers are matched with powerful air compressors - a proven and efficient team even in the harshest mining conditions.
Shipping&Payment
Every piece of Miningwell equipment and drilling rig undergoes a rigorous load security check to ensure the safety of the cargo in the container.
Our payment methods: credit card, L/C, T/T, Western Union, and we support shipping by air and by sea.

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