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D50KS Rotary Blasthole Drilling Rig

D50KS Rotary Blasthole Drilling Rig

The Sandvik D50KS is designed for various open-pit mining operations, featuring an efficient drilling rod-shifting system that significantly reduces cycle times. With a maximum drilling depth of 45 meters, it delivers high performance in both soft and hard rock conditions.

Product Features

Open-type In-line Engine Design

The D50KS features an open-type in-line engine layout, enabling easy maintenance operations that effectively reduce operating costs and extend equipment service life.

 

Maximized Productivity

The cab features ergonomic design, offering unobstructed vision and enhanced comfort, significantly boosting operational efficiency and output capacity.

 

Robust Working Deck

The rotary drilling rig features a meticulously designed working deck that is mounted on a compact yet powerful drilling platform. This significantly enhances the rig's operational stability and support capacity.

Parameters

Hole Diameter

152.00 - 229.00 mm (6.00 - 9.00 inch)

Bit Weight

27,216 kg (60,000 lb)

First pass capability

8.70 m

Drilling Type

Rotary Drilling

Maximum hole depth

45.00 m (147.00 ft)

Axial Compressive Force

222 kN (50,000 lbf)

Air Compressor

29.70 m3/min @6.9 bar (1,050 CFM@100 psi)

 

Rotary Blasthole Drilling Rig Applications

Open-Pit Metal Mines

Large open-pit metal mines require high drilling productivity and consistent blast-hole quality.

Rotary Blasthole Drilling Rigs are suitable for drilling production holes in:

  • Iron ore mines
  • Copper mines
  • Gold mines
  • Nickel mines
  • Other metal mining operations

Large hole diameter and deeper drilling capability allow the rigs to support high-bench blasting programs.

Coal Mining

In surface coal mines, rotary drilling rigs can be used for both overburden blasting and production drilling.

High drilling capacity helps support:

  • Large mine production schedules
  • Continuous bench development
  • Overburden removal
  • Large blasting patterns

Limestone and Aggregate Quarries

Large limestone and aggregate quarries often require high-volume drilling before blasting.

Rotary rigs can provide efficient drilling for larger blast-hole patterns where productivity and drilling cost per meter are key considerations.

Large Excavation Projects

The rigs can also be used in major infrastructure and excavation projects that require high-volume surface drilling.

Typical applications include:

  • Dam construction
  • Large foundation excavation
  • Road construction
  • Large-scale rock excavation
  • Infrastructure development

Rotary Drilling vs. DTH Drilling

Choosing between a Rotary Blasthole Drilling Rig and a Surface DTH Drill Rig depends on the required hole size, drilling depth, geology and production target.

Factor Rotary Blasthole Drilling DTH Drilling
Typical Application Large open-pit mining Quarrying, mining and construction
Hole Diameter Generally larger Small to medium-large
Drilling Depth Suitable for deep production holes Suitable for shallow to deep holes depending on rig
Rock Conditions Soft to hard rock depending on bit and configuration Particularly effective in medium-hard and hard rock
Production Scale High-volume mining Flexible production drilling
Drilling Method Rotary force and bit load Percussive DTH hammer
Compressor Function Mainly hole cleaning Powers hammer and cleans hole

For large-scale mine production with larger blast-hole diameters, rotary drilling is often a strong choice.

How to Select a Rotary Blasthole Drilling Rig

Before purchasing a Rotary Blasthole Drilling Rig, several operating parameters should be evaluated.

1. Required Hole Diameter

Hole diameter influences:

  • Drill bit selection
  • Rotary torque requirements
  • Axial feed force
  • Compressor capacity
  • Explosive loading
  • Blasting pattern

For example, a drilling range of 152–229 mm is suitable for many large open-pit production applications.

2. Maximum Hole Depth

Bench height and blasting design determine required drilling depth.

Where holes exceed first-pass mast capacity, the efficiency of the rod-changing system becomes particularly important.

3. Rock Formation

Different rock formations require different combinations of:

  • Bit load
  • Rotation speed
  • Bit design
  • Airflow
  • Feed pressure

Understanding the geology helps select a rig configuration that balances penetration rate and consumable life.

4. Required Daily Production

Mine operators should estimate:

  • Number of holes per shift
  • Average hole depth
  • Daily drilled meters
  • Annual drilling volume

This allows the required machine productivity to be matched with the mine plan.

5. Compressor Capacity

The compressor must provide sufficient airflow to efficiently remove cuttings from the hole.

Insufficient airflow can cause:

  • Poor hole cleaning
  • Regrinding of cuttings
  • Reduced penetration
  • Increased bit wear
  • Hole blockage

6. Maintenance Conditions

For remote mining operations, maintenance accessibility and spare-parts availability can strongly influence equipment uptime.

An open engine layout and accessible service points can reduce daily maintenance requirements.

Factors Affecting Drilling Cost Per Meter

Mining companies should evaluate equipment based on total drilling cost rather than purchase price alone.

Important cost factors include:

  • Fuel consumption
  • Drill bit consumption
  • Drill rod wear
  • Maintenance cost
  • Compressor efficiency
  • Operator productivity
  • Machine availability
  • Penetration rate
  • Rod-changing time
  • Equipment downtime

A high-productivity Rotary Blasthole Drilling Rig can reduce total cost by increasing drilled meters while controlling downtime and consumable consumption.

What Information Should You Provide Before Requesting a Quote?

To recommend the correct Rotary Blasthole Drilling Rig, please provide:

  1. Target hole diameter
  2. Required hole depth
  3. Bench height
  4. Rock type and approximate hardness
  5. Mine or quarry application
  6. Required drilling meters per shift
  7. Required annual drilling volume
  8. Working altitude
  9. Ambient temperature
  10. Project location
  11. Preferred drilling bit specification, if known
  12. Any special operating requirements

Based on these details, we can recommend a suitable drilling rig configuration.

Why Choose Our Rotary Blasthole Drilling Rigs?

Our Rotary Blasthole Drilling Rigs are designed around the operating priorities of mining companies, quarry operators and drilling contractors.

Key advantages include:

  • Large-diameter blast-hole drilling
  • Deep drilling capability
  • High axial feed force
  • High-capacity compressed-air system
  • Efficient rod handling
  • Stable drilling platform
  • Convenient maintenance layout
  • Ergonomic operator environment
  • Reliable operation for demanding surface mines

The goal is to help operators achieve higher drilling productivity while controlling maintenance requirements and total operating costs.

 

Improve Open-Pit Drilling Productivity

A suitable Rotary Blasthole Drilling Rig can help mining operators improve penetration efficiency, shorten drilling cycles and achieve more consistent blast-hole quality.

Whether your project requires 152–229 mm blast holes, drilling depths up to approximately 45 m, high axial feed force or high-volume compressed air, the correct rig configuration should be matched to your geology and production requirements.

Send us your hole diameter, drilling depth, rock condition, bench height and required daily drilling capacity to receive a recommended Rotary Blasthole Drilling Rig configuration and quotation.

 

D50KS Rotary Blasthole Drilling Rig

 

FAQ

  • Do you provide technical support?

    Yes. We provide professional pre-sales, in-sales, and after-sales support, along with expert technical guidance and usage precautions.

  • Sales Coverage

    We supply specialized products to customers worldwide.

  • Do you provide technical support?

    Yes. We provide professional pre-sales, in-sales, and after-sales support, along with expert technical guidance and usage precautions.

Warranty Policy

We provide repair service if there is necessary

Payment Methods

30% advance payment,70% balance payment before shipment

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