For mining drilling rig or blasthole drills selection, our target is choosing the right rig for right purpose, let’s have the further explanation on how to achieve this target. There are totally two parts for this topic, here is the part one. Field of Application OPEN PIT MINING (METALS, INDUSTRIAL AND BUILDING MATERIALS) Production drilling […]

For borehole drilling, it looks simple. But if you really want to get perfect borehole, it will need a lot of professional knowledge. Such as selecting most suitable drill rigs and drill tools. Any of them is not chosen properly, it will cause issues on hole quality. Below is some tips we learned in the […]

In the world, there are  hundreds of player, who making the Drill Rigs from one century ago. Their drilling machine cover almost all drilling business, such as blasthole drilling, water well drilling, geothermal drilling and solar piling drilling as well as construction borehole drilling etc. However, along with marketing competition and technology upgrading, less 10 […]

Hardrock is pleased to ship out 7 sets of vertical drilling rigs out to Africa, the rigs were purchased by an African construction and drilling company to used for communities well borehole drilling and farms irrigation. Back in 2017, this company placed a trial order for one set of drilling rig DP200, after one year’s […]

The DTH hammer bit is very widely used for bore hole drilling including Foundation Drilling, Water Well and Mining Drilling. Therefore how to select proper drill bit is the key technology for each borehole drill operator. If we want to do this the, we must know the different characteristic for different drill bit type. For […]

By the end of Jun, 2018, Hardrock supplied one truck mounted Hardrock DT400 Drilling Rig for National Agriculture Irrigation projects in Pakistan. The Hardrock DT400 truck mounted rig is capable of opening holes at 20’’ diameter, and 400m depth. Custom built to customer’s requirements, the rig is fitted with a reverse circulation equipment, it has higher […]

Rotary drilling tricone bit is essential for Borehole Rotary drilling such as for Piling Drilling, Foundation Drilling, Mining Drilling, Oil/Gas Drilling and Water Well Drilling. Normally it works with mud pump or air compressor as drilling fluid to take the cuttings out of the hole. Classification in terms of amount of rollers:        […]

In last article, 6 advantages between direct circulation and reverse circulation drilling is explained from application point of view, here will be some key point for how to design the reverse circulation drilling system. There are total 7 points the designer should care to get a perfect RC drilling system 1. How to Define Sink […]

The biggest industrial and mining exhibition in South Africa-Electra Mining Fair in 2018 will take place from 10th to 14th, Sep, in 2018, and the venue for the exhibition is Expo Centre, Nasrec, JHB, South Africa. Hardrock’s sales team will present Hardrock’s latest products on Booth No E30, we sinerely invite you to drop a […]

In last article 8 Points on How to Select Water Well Drilling Rig, the Drilling method are mentioned, here we will give some further introduction on reverse circulation drilling system. The RC is widely used in borehole drilling area especially in water well drilling and foundation drilling for big diameter hole. Reverse Circulation(RC) Working Principle The drilling theory […]