China YN27J Internal Combustion Rock Drill Manufacturer, Factories

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China YN27J Internal Combustion Rock Drill Manufacturer, Factories

The Internal Combustion Rock Drill Type YN27J is a very efficient machine with the characters of the structure is very compact, less of the- easy-to-damage-parts, and very easy to control. It can adapt to these outside situations there is no water and electronic power.

It is a kind hand held drill built up with gasoline engine, air pump, rock drill and the rotation plumbum equipment for running or stop. It can be used as a tool for breaking, percussive drilling, tamping besides rock drilling.

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Product Description

The Internal Combustion Rock Drill Type YN27J is a highly efficient machine characterized by its compact structure, minimal easy-to-damage parts, and ease of control. It is perfectly adapted to outdoor situations where water and electrical power are unavailable.

This handheld drill integrates a gasoline engine, air pump, rock drill, and rotation equipment for seamless operation. Beyond rock drilling, it serves as a versatile tool for breaking, percussive drilling, and tamping.

Five Core Advantages of the YN27J Gasoline Rock Drill

The YN27J is a portable internal combustion gasoline rock drill that integrates a gasoline engine, air compressor, and rock drill into one unit. It is specifically designed for field operations without power supply, boasting the following notable advantages:

1. Excellent Environmental Adaptability

No need for external power or water supply, enabling operation anytime and anywhere.
Stable performance in extreme temperatures, ranging from 40°C high heat to -40°C severe cold.
Suitable for high mountains, plains, and remote mountainous regions.

2. Easy Operation & High Efficiency

Simple start-up with handle rotation; no professional training required.
Drilling speed ≥250mm/min, significantly faster than manual drilling.
Automatic slag blowing: compressed air clears rock dust automatically.
One-person operation reduces labor intensity.

3. Compact Structure & Durability

Total weight of only 27kg and portable size (746×315×229mm).
Manufactured with high-strength materials for impact resistance.
Few wearing parts and simple maintenance for a long service life.
Parts are interchangeable with international similar products.

4. Fuel-Efficient & Long Endurance

Low fuel consumption: ≤0.12L/m (per meter of drilling).
Large 1.5L fuel tank supports continuous operation for several hours.
Special carburetor maintains combustion efficiency even at high altitudes.

5. Multifunctional Application

Supports vertical downward drilling (6m depth) and upward drilling < 45°.
Ideal for mining, road construction, bridge building, and exploration.
Quickly converts into a crusher or rammer for high cost-effectiveness.

Technical Specifications

YN27J Technical Parameters
Weight of main machine	27kg
Overall dimensions (LWH)	746315229mm
Type of engine	Single cylinder, air cooled two strokes
Cylinder diameter * stroke of piston	Φ58*70mm
Rotation speed of engine	≥2450rpm
Displacement of engine piston	185cm³
Type of carburetor	Hand needle valve, floatless type
Ignition system	Controllable silicon, contactless system
Drilling speed (mean value)	≥250mm/min
Drilling hole diameter	Φ28-42mm
Max drilling depth	6m
Fuel consumption	≤0.09L/m
Tank capacity	≥1.5 liter
Mixture ratio (gasoline:oil)	12:01
Drill rod and breaker shank	Hex22*108mm
Rotating speed of drill rod	≥200 rounds/min
Clearance of spark plug	0.5-0.7mm

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Summary

With its core advantages of no need for external energy, easy operation, compact structure, high efficiency, and durability, the YN27J gasoline rock drill is an ideal choice for drilling operations in field environments without water and electricity. It is particularly suitable for small quarries, remote area construction, and emergency rescue projects.