📦 Surface Mining Drilling Rigs

Kaishan KG550 Open-Pit DTH Drilling Rig

Name: Kaishan KG550 Open-Pit DTH Drilling Rig
Brand: Kaishan
SKU: KG550
Availability: InStock

Model: KG550

The Kaishan KG550 is a heavy-duty open-pit DTH drilling rig engineered for high-capacity blast hole drilling in mining and quarrying. Built around a proven Kaishan platform, it delivers reliable penetration in hard rock with a maximum drilling depth of 30 m and hole diameters from 115 to 165 mm. A 73.5 kW diesel engine powers the rotary head and crawler travel system, giving the KG550 the torque and traction needed on rugged benches. Its hydraulic top-head drive, integrated dust suppression, and ergonomic operator cabin make it a productive, low-maintenance choice for open-pit mines, limestone quarries, and construction aggregate operations. The KG550 combines robust structural design with efficient DTH performance, helping contractors reduce cost per meter while maintaining hole accuracy and safety.

Best For

Open-Pit Mining Quarrying Construction Aggregate Infrastructure Projects

Technical Specifications

Model	KG550
Drilling Depth	30 m
Hole Diameter	115–165 mm
Drilling Method	DTH (Down-The-Hole) hammer drilling
Engine Power	73.5 kW
Weight	6,200 kg
Dimension (L×W×H)	11,000 × 2,800 × 3,400 mm

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan KG550 is a crawler-mounted open-pit DTH drilling rig designed for blast hole drilling in mining, quarrying, and large-scale construction. As part of Kaishan's open-pit drill rig series, it is built to deliver stable performance in hard rock conditions while keeping operating costs under control. The KG550 is particularly suited to bench drilling where hole accuracy, penetration rate, and machine uptime directly affect overall project economics. ## Technical Features The rig uses a hydraulic top-head rotary drive combined with DTH hammer technology, allowing efficient drilling in medium to hard formations. A powerful 73.5 kW diesel engine provides ample power for both drilling and crawler tramming. The KG550 offers a maximum drilling depth of 30 m and supports hole diameters from 115 mm to 165 mm, covering common blast hole sizes in open-pit operations. The hydraulic system is designed for smooth feed force control, reducing wear on drill tools and improving hole straightness. An integrated dust collection system helps meet site environmental requirements, while the enclosed operator cabin improves comfort and visibility. The crawler undercarriage provides good stability and maneuverability on uneven benches. ## Applications This rig is ideal for open-pit mining, limestone and granite quarries, aggregate production, and infrastructure projects requiring regular blast hole drilling. It can also be used for pre-splitting and production drilling in metal and non-metal mines. With its robust design and service access, the KG550 supports continuous operation in demanding environments. ## Value Proposition Kaishan's global service network, readily available spare parts, and operator training help maximize the KG550's availability. The rig is engineered for low maintenance and long service life, making it a practical investment for contractors seeking reliable open-pit drilling performance.

Technical Selection

Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.

Hole Diameter

115–165 mm

Drilling Depth

30 m

Engine Power

73.5 kW

Weight

6,200 kg

Dimension (L×W×H)

11,000 × 2,800 × 3,400 mm

Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.

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Key Advantages

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Heavy-duty crawler chassis for stable operation on rough benches

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Hydraulic top-head drive with DTH hammer compatibility

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73.5 kW diesel engine for powerful drilling and tramming

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Maximum drilling depth of 30 m and hole diameter 115–165 mm

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Integrated dust suppression system for cleaner worksites

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Ergonomic operator cabin with good visibility and controls

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Easy access service points for reduced maintenance downtime

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Proven Kaishan reliability with global parts and support

Applications

📍 Open-Pit Mining

Production blast hole drilling in metal and non-metal open-pit mines.

Solution: KG550 delivers consistent penetration and hole accuracy, improving fragmentation and reducing cost per ton.

📍 Quarrying

Drilling blast holes in limestone, granite, and other hard rock quarries.

Solution: DTH hammer and hydraulic feed control ensure efficient drilling in abrasive rock with less tool wear.

📍 Construction Aggregate

Blast hole drilling for aggregate production and site preparation.

Solution: Compact crawler design and dust collection make it suitable for urban and rural aggregate operations.

📍 Infrastructure Projects

Drilling for road, railway, and dam construction where rock excavation is required.

Solution: Reliable diesel power and robust undercarriage support continuous operation on remote job sites.

KG Series Models

Compare specifications across the series to find the right model.

Model	Model	Drilling Depth	Hole Diameter	Drilling Method	Engine Power	Inquire
KG550This model	KG550	30 m	115–165 mm	DTH (Down-The-Hole) hammer drilling	73.5 kW	Get a Quote
KG430	Kaishan KG430	30 m	90–165 mm	DTH (Down-The-Hole)	73 kW	Get a Quote
KG520	Kaishan KG520	30 m (single pass); 100 m (with extension rods)	90–165 mm	Down-The-Hole (DTH) drilling	194 kW (260 HP)	Get a Quote
KG590	Kaishan KG590	30 m	90–165 mm	DTH (Down-The-Hole) Hammer Drilling	194 kW (260 HP)	Get a Quote
KG590H	KG590H	25 m	105-152 mm	DTH (Down-The-Hole) Drilling	194 kW (260 HP)	Get a Quote
KG720	Kaishan KG720	30 m	90–165 mm	Down-the-Hole (DTH) Drilling	194 kW	Get a Quote
KG420B	Kaishan KG420B	25 m	90-130 mm	Down-the-Hole (DTH)	58 kW	Get a Quote
KG940A	KG940A	30 m	90–165 mm	DTH (Down-The-Hole)	58 kW	Get a Quote
KG920A	Kaishan KG920A	25 m	90–165 mm	DTH (Down-The-Hole) Hammer	118 kW (158 hp)	Get a Quote
KG920B	KG920B	25 m	90-165 mm	DTH (Down-The-Hole)	194 kW	Get a Quote
KG920D	Kaishan KG920D	25 m	90–165 mm	Down-the-Hole (DTH) Hammer Drilling	194 kW	Get a Quote

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Main Components

Crawler undercarriage
Diesel engine
Hydraulic top-head rotary drive
Feed beam and chain system
Operator cabin
Dust collection system
Control panel
Drill string and DTH hammer (optional)

Working Principle

The Kaishan KG550 operates as a crawler-mounted DTH drilling rig. A diesel engine drives the hydraulic system, which powers the rotation unit, feed system, and crawler travel. During drilling, a DTH hammer is attached to the drill string and rotated by the top-head drive. Compressed air is supplied by a separate air compressor (not part of the rig) to the hammer, causing the piston to strike the bit at high frequency. The combination of rotation and percussion breaks rock efficiently. The feed system applies controlled downward force to maintain optimal bit load, while the rotation unit provides torque for hole alignment. Cuttings are flushed from the hole by the air stream and captured by the dust collection system. The operator controls all functions from the cabin, adjusting feed speed, rotation speed, and tramming as needed. This method is well suited to hard rock and delivers high penetration rates with good hole straightness.

Detailed Features

▸Robust structural design for demanding open-pit conditions
▸Hydraulic top-head drive for efficient torque transmission
▸DTH hammer compatibility for hard rock drilling
▸Maximum drilling depth 30 m
▸Hole diameter range 115–165 mm
▸73.5 kW diesel engine for power and mobility
▸Integrated dust suppression
▸Ergonomic cabin and easy maintenance access

Packaging & Shipping

The Kaishan KG550 is shipped in a disassembled or partially assembled state for efficient transport. Main components are secured on steel skids and protected with anti-corrosion wrapping. Standard export packaging includes container loading: typically 1 unit in a 40HQ container or 2 units in a 40OT depending on configuration. Delivery time is approximately 30–45 days after order confirmation. Port of shipment: Shanghai or Ningbo, China. Custom packaging and labeling available upon request.

After-Sales Service

Kaishan provides a 12-month warranty on major components (excluding wear parts). 24-hour technical support via phone or email. Free operator training at Kaishan factory or on-site (travel costs may apply). Global spare parts network with fast dispatch. Regular maintenance reminders and service kits available. Optional extended warranty and preventive maintenance contracts.

Frequently Asked Questions

What hole diameter and drilling depth does the KG550 cover?+

The KG550 drills hole diameters from 115 mm to 165 mm to a maximum drilling depth of 30 m. It uses DTH hammer drilling for blast hole work in open-pit conditions.

What engine powers the KG550?+

The KG550 is powered by a 73.5 kW diesel engine. That engine supplies power for both the drilling system and crawler tramming, and the rig weighs 6,200 kg.

What are the transport dimensions of the KG550?+

The KG550 measures 11,000 × 2,800 × 3,400 mm (L×W×H). It is shipped disassembled or partially assembled, with main components secured on steel skids and protected by anti-corrosion wrapping.

How is the KG550 shipped and how long is delivery?+

The KG550 is shipped in a disassembled or partially assembled state, typically 1 unit in a 40HQ container or 2 units in a 40OT depending on configuration. Delivery time is approximately 30–45 days after order confirmation.

What applications suit the KG550?+

The KG550 is used for open-pit mining, quarrying, construction aggregate and infrastructure projects. Its heavy-duty crawler chassis supports stable operation on rough benches, and an integrated dust suppression system keeps the worksite cleaner.

What warranty and support come with the KG550?+

Kaishan provides a 12-month warranty on major components, excluding wear parts. Support includes 24-hour technical support via phone or email, free operator training at the Kaishan factory or on-site with travel costs possibly applying, and a global spare parts network.

What drive and drilling method does the KG550 use?+

The KG550 uses a hydraulic top-head drive with DTH hammer compatibility. This combination supports efficient drilling in medium to hard formations across the 115–165 mm hole diameter range.

How does the KG550 handle maintenance access?+

The KG550 has easy access service points to reduce maintenance downtime, along with an ergonomic operator cabin with good visibility and controls. Regular maintenance reminders and service kits are available.