📦 Surface Mining Drilling Rigs

Kaishan KGH4 DTH Drilling Rig

Name: Kaishan KGH4 DTH Drilling Rig
Brand: Kaishan
SKU: KGH4
Availability: InStock

Model: KGH4

The Kaishan KGH4 is a compact, hydraulic top-head DTH drilling rig engineered for high-efficiency blast hole and water well drilling in hard rock. With a drilling depth of up to 100 m and a hole diameter range of 90–165 mm, it combines a 118 kW diesel engine with a robust hydraulic system to deliver reliable performance in quarrying, mining, and construction projects. Its track-mounted design ensures excellent mobility on rough terrain, while the integrated dust collector and ergonomic control panel improve safety and operator comfort. The KGH4 supports both DTH hammer and rotary drilling methods, making it a versatile choice for contractors seeking productivity and low operating cost. Backed by Kaishan's global service network, this rig is ready for demanding jobsites worldwide.

Best For

Quarry Blast Hole Drilling Open-Pit Mining Water Well Drilling Construction and Foundation

Technical Specifications

Model	KGH4
Drilling Depth	25 m
Hole Diameter	80–115 mm
Drilling Method	DTH Hammer / Rotary
Engine Power	118 kW
Weight	12,000 kg
Dimension (L×W×H)	7,500 × 2,300 × 2,800 mm

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan KGH4 is a track-mounted hydraulic DTH drilling rig designed for medium-scale hard rock drilling. As a member of Kaishan's proven KGH series, it delivers a practical balance of power, mobility, and reliability. The rig is purpose-built for blast hole drilling in quarries, open-pit mines, and construction sites, as well as for water well drilling in unconsolidated and consolidated formations. Its compact footprint and articulated boom allow precise positioning even in confined spaces. ## Technical Features The KGH4 is powered by a 118 kW turbocharged diesel engine that drives both the hydraulic system and the rotary head. The top-head rotary head provides stepless rotation speed and torque control, enabling efficient penetration with DTH hammers from 3.5" to 5.5". A heavy-duty undercarriage with hydraulic track oscillation ensures stability on uneven ground. The rig features a two-stage dust collection system that captures fines at the collar, maintaining a cleaner and safer work environment. The hydraulic system uses load-sensing technology to reduce fuel consumption and heat generation. An optional automatic rod changer and cabin with air conditioning are available for enhanced productivity and operator comfort. ## Applications This rig excels in quarry blast hole drilling, where it can drill 90–165 mm holes to depths of 100 m. It is equally effective for water well drilling in soft to medium-hard formations when equipped with rotary or DTH methods. Construction projects requiring foundation anchors, micro-piles, or site investigation also benefit from its precision and mobility. In mining, the KGH4 serves as a reliable production drill for small to medium benches. Its ability to operate in remote locations with minimal setup time makes it a favorite among contractors. ## Why Choose KGH4 With Kaishan's global reputation for durable drilling equipment, the KGH4 offers low cost per meter, easy maintenance, and strong after-sales support. The rig is CE certified and can be customized with various options to meet specific project needs.

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

80–115 mm

Drilling Depth

25 m

Engine Power

118 kW

Weight

12,000 kg

Dimension (L×W×H)

7,500 × 2,300 × 2,800 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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Track-mounted design for superior mobility on rough terrain

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118 kW turbocharged diesel engine for reliable power

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Drilling depth up to 100 m with hole diameter 90–165 mm

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Hydraulic top-head rotary head with stepless speed control

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Integrated two-stage dust collection system

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Ergonomic control panel and optional air-conditioned cabin

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Compatible with DTH hammer and rotary drilling methods

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Heavy-duty undercarriage with hydraulic track oscillation

Applications

📍 Quarry Blast Hole Drilling

Efficient drilling of blast holes in hard rock quarries.

Solution: Equipped with DTH hammer and automatic rod changer, the KGH4 delivers fast penetration and precise hole alignment, reducing overall drilling cost per ton.

📍 Open-Pit Mining

Production drilling for small to medium benches in metal and non-metal mines.

Solution: The rig's powerful engine and robust hydraulic system ensure consistent performance in demanding mining conditions, with dust suppression for a safer environment.

📍 Water Well Drilling

Drilling water wells in unconsolidated and consolidated formations.

Solution: By switching to rotary or DTH method with appropriate bits, the KGH4 can drill 100 m deep water wells quickly, providing reliable water access in remote areas.

📍 Construction and Foundation

Drilling for foundation anchors, micro-piles, and site investigation.

Solution: The compact track-mounted design and articulated boom allow precise positioning in confined urban jobsites, minimizing setup time and disturbance.

Similar Models in This Category

This model is unique in its series — here are similar models from the same category.

Model	Model	Drilling Depth	Hole Diameter	Drilling Method	Engine Power	Inquire
KGH4This model	KGH4	25 m	80–115 mm	DTH Hammer / Rotary	118 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
KG550	KG550	30 m	115–165 mm	DTH (Down-The-Hole) hammer drilling	73.5 kW	Get a Quote
KG940A	KG940A	30 m	90–165 mm	DTH (Down-The-Hole)	58 kW	Get a Quote

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Main Components

Diesel engine
Hydraulic pump and system
Top-head rotary unit
Feed beam and chain drive
Track undercarriage
Dust collector
Control panel
Drill string (rods and DTH hammer)

Working Principle

The Kaishan KGH4 operates on a hydraulic top-head drilling principle. A diesel engine drives a hydraulic pump that supplies pressurized oil to the rotation unit, feed system, and track motors. The rotation unit, mounted on a feed beam, applies torque to the drill string. For DTH drilling, compressed air is delivered through the drill pipe to a down-the-hole hammer, which impacts the rock while the bit rotates. The feed system pulls the drill string into the rock with controlled force. Cuttings are flushed out of the hole by the exhaust air and captured by the dust collector. For rotary drilling, the rotation unit turns a tricone or drag bit, and mud or air is used for flushing. The track undercarriage enables maneuverability, while the hydraulic boom positions the feed beam for accurate hole alignment. All functions are controlled from a centralized panel, allowing the operator to adjust rotation speed, feed force, and air volume for optimal penetration in various rock types.

Detailed Features

▸High drilling efficiency with DTH hammer
▸Compact and maneuverable track design
▸Low fuel consumption with load-sensing hydraulics
▸Dust collection for cleaner worksite
▸Optional automatic rod changer
▸Ergonomic operator cabin available
▸Easy maintenance access points
▸CE certified and globally supported

Packaging & Shipping

The Kaishan KGH4 is shipped in a 40HQ container with the boom and feed beam folded to minimize space. The rig is securely fastened with heavy-duty chains and protected with anti-rust coating and wrapping film. Standard delivery time is 30–45 days after order confirmation. Shipping ports include Shanghai, Qingdao, or as per customer request. All necessary documentation for export is provided.

After-Sales Service

Kaishan offers a 12-month warranty on major components. A 24-hour technical support hotline is available for troubleshooting. We provide on-site training for operators and maintenance staff at customer's location or via video. Spare parts are stocked in regional warehouses for fast delivery. Regular maintenance kits and service contracts are available to ensure maximum uptime.

Frequently Asked Questions

What hole diameter and drilling depth does the KGH4 cover?+

The KGH4 drills holes from 80–115 mm in diameter to a drilling depth of 25 m. It uses DTH hammer or rotary drilling methods. This range covers blast hole and water well work in hard rock.

What engine powers the KGH4 drilling rig?+

The KGH4 is powered by a 118 kW engine. That power drives the hydraulic system and the top-head rotary head. The rig weighs 12,000 kg.

What are the dimensions and weight of the KGH4?+

The KGH4 measures 7,500 × 2,300 × 2,800 mm and weighs 12,000 kg. Its track-mounted design supports mobility on rough terrain. The compact footprint aids positioning on confined sites.

Which drilling methods does the KGH4 support?+

The KGH4 supports both DTH hammer and rotary drilling. The hydraulic top-head rotary head allows method selection to suit the formation. This makes it usable across hard rock and other ground conditions.

Where can the KGH4 be used?+

The KGH4 is built for quarry blast hole drilling, open-pit mining, water well drilling, and construction and foundation work. Its 80–115 mm hole diameter and 25 m drilling depth suit these applications. The track-mounted undercarriage handles rough terrain.

How is the KGH4 packed and shipped?+

The KGH4 ships in a 40HQ container with the boom and feed beam folded. Standard delivery time is 30–45 days after order confirmation. Shipping ports include Shanghai and Qingdao.

What after-sales support comes with the KGH4?+

Kaishan offers a 12-month warranty on major components for the KGH4. A 24-hour technical support hotline handles troubleshooting. On-site operator and maintenance training is provided.