Longhole stoping is a very popular method in underground mining for blasting a sequence of stopes in metalliferous mines. The holes are drilled according to a predetermined pattern designed by a mining engineer. This method is one of the most productive ones and covers a variety of ore thicknesses and dips (0 – 90⁰).
Hydrostatic transmission - Diesel engine - QSB4.5 (119 kW Tier 3 Stage IIIA ) DD422i has the widest range of automatic drilling functions, able to achieve reduced over-breaking with maximized pull-out per blast. It's the ideal choice for underground mine development and small-scale tunneling.
Longhole. This method consists in a variety of chambers where the mine blocks are generally cut by sub-levels from which long holes are drilled in plans that are generally …
Options. 0.9 m, and 1.2 m, and 1.83 Traverse widths. Laser hold alignment system. ITH conversion package. Dimensions. Overall weight is 13,742 kg (8,250 lbs) Raise transport - Powerpack (largest module) Length 2570 mm, Width 1320 mm, Height 1220 mm. Cage Transport - Length 4010 mm, Width 1370 mm, Height 1800 mm @ 5230 kgs.
Hydrostatic transmission (diesel) TCD3.6 L4EDG (74 kW China IV) DL2720 is a compact and fully-mechanized longhole drill with an electro-hydraulic top hammer designed for underground mining in 3.4 x 3.2 meter (H x W) or larger production drifts. It is capable of drilling vertical and inclined fans and single or double longholes up to 38 meters ...
Independent rotation drifter longhole drilling has been practised over many years utilising relatively small diameter blast holes (±50 mm). Accuracy constraints limited the lengths …
Fletcher J-352-LS. This drill is primarily used for lime-stone mining and can drill headings of up to 60 feet wide and 35 feet high. It uses a diesel-hydraulic engine that provides it with enough power to work for …
Drifter: COP 1838 HD (18kW) Feed: BMH 2000 Series: Boom: BUT 4B: Power: ... Mako Mining proudly endorses all our associated service and product providers and encourage other underground mining companies …
The sturdy Simba M6 is a long-hole production drill rig for medium to large-drift mining with holes ranging from 51 to 178 mm in diameter. It accommodates a range of drill bits, rock drills and in-the-hole hammers to adapt to your specific needs. The rig operator enjoys excellent visibility and enhanced safety in the comfortable cabin. Tele-remote control …
Underground drill rigs. We engineer an extensive range of underground drill rigs for mining development and production. Available in a variety of feed lengths, boom configurations and size classes, our underground drill rigs maximize productivity while delivering the lowest cost per meter. We offer battery-driven underground drills for all ...
The small drifter jumbo and longhole rig complemented with an LHD with a 2-m3 bucket provides everything needed for the mechanized mining of a 2-m-wide vein. Shrinkage Stoping In shrinkage stoping (Figure 1.8), ore is excavated in horizontal slices, starting from the bottom of the stope and advancing upward.
Percussion rate. 42 - 53 Hz. HL820ST. Features. Specifications. Related products and services. Get more information. Request a quote. Designed for DL311 and DL321 underground longhole drills, HL820ST hydraulic top hammer rock drill can drill holes ranging between 54-89 mm in diameter and 38 m in depth.
trunklines in open pit mining, quarrying, construc-tion and underground mining. They consist of a surface delay detonator housed in a plastic EZ Connector™ block, attached to a length of shock tube. EZTL are available in various lengths and delay times. EZ DRIFTER® nonelectric blast initiation system The EZ DRIFTER system is used extensively in
DD321 is a versatile and powerful drill rig for underground mining. It can perform different types of drilling operations in challenging environments. Download the specification sheet to learn more about its features, benefits and technical data.
Drillers Choice for Long hole and Drop Raising Drilling applications. Durable design that has been updated to include premium materials designed and manufactured to exacting tolerances. The S36IR is ideal for both underground and surface applications. The S36IR, is a powerful 114mm (4½) diameter Rock drill with independently controlled rotation.
Top 5 benefits of retrofits. Cut costs: Reduce your operating budget with more efficient components and lower maintenance costs from common fleet parts. Extend machine life: Delay large investments in new bolters and jumbos by replacing vital components — such as a mining rock drill — that do the hard work. Boost productivity: Whether Montabert …
Long-Hole Drills – GHH – SOLID AS A ROCK. For underground production drilling Mine Master offers a range of long hole drilling rigs in configurations suitable for the required …
Abstract The authors address the problem connected with the determination of efficient rotary percussive drilling techniques with DTH hammers and present estimation criteria for their value ranges such that to ensure drilling at minimum energy content and wear of bits. The calculation formulas for drilling techniques are given, and …
Dyno Nobel is a leading supplier of industrial explosives and blasting services to the mining, quarrying, seismic and construction industries. Visit Dyno Nobel. ... NONEL® EZ DRIFTER® 1.4B. Non-electric Delay Detonators. SDS Tech Info. NONEL® EZTL™ 1.1. Non-electric truckline delay det for use with shock tube SDS Tech Info.
Long hole open stoping gives you higher production rates. Long-hole open stoping can increase production rates compared to other underground mining methods, as more ore can be extracted in a ...
Proterra & Announce Collaboration To Electrify Underground Mining Machines Posted 11/1/2023. Equipmentfacts: ... 3.5" – 4.5" Inch Class* HL1000 Drifter comes with both T51 & GT60 Gear* …
AMC has conducted numerous studies to reduce dilution for mechanized narrow vein (NV) mining methods in operating mines. Methods have included longhole open stoping …
Sub Saharan Africa: EZ Drifter® The EZ Drifter® is a Primadet® non-electric blast initiation system provides precise, reliable and millisecond accurate sequential blasting in underground stoping, bord & pillar and tunneling applications.The EZ Drifter® system provide precise, reliable and millisecond accurate sequential blasting, in addition to a …
Long-Hole Drills. For underground production drilling Mine Master offers a range of long hole drilling rigs in configurations suitable for the required work in mines. To adapt to specific working conditions the machines can be offered with variable setups of the working unit featuring different feed lengths and drifter parameters.
The purpose of hydropower drilling is to improve on the safety and environment and to dramatically improve on the drilling speed compared to compressed air and electric drilling and to be compatible with oil hydraulic drilling in hard rock mining conditions. The drifter is a 7 kW drilling machine that is primarily used on our drilling rigs.