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Continuous Miner Technology

Supplier: Joy Mining Machinery

Joy sets the standard in continuous miner technology. Sophisticated electronics, custom designed scrubber systems, cutter drum designs and remote control systems are a few reasons why the JOY continuous miners remain the first choice for production and reliability. Models are available to operate in varying seam heights and mining conditions.


The JOY continuous miner product line has been developed to meet the high productivity requirements of today's underground mining industry. Machine designs are available to satisfy the full spectrum of seam conditions worked in today's market.

The continuous miners use individual motors with direct drive transmissions to power the cutter, traction, gathering and hydraulic systems. This permits service or repair quickly and easily, thus reducing downtime and maintenance costs.

Integrated Mining Machine
The JOY integrated mining machine (IMM) is a synergistic machine designed for rapid entry development, integrating cutting, loading, bolting, material handling, face ventilation and operator ergonomics.

Joy has developed a full-face mining machine enabling simultaneous bolting and cutting. An automated cutting and loading mechanism in combination with ergonomically designed bolting platforms have resulted in a machine that combines improved operator safety and
comfort with faster entry development.

17CM Series

Cutting System
The 17CM is available with either the 30 inch / 762 mm or optional 28 inch / 711 mm diameter cutter drums for low-to-mid seam applications. The cutting system features two cutter motors designed, engineered and manufactured to provide productive and reliable operation. Advanced gearing design allows the use of high horsepower cutter motors without sacrificing the life expectancy of the drive. In addition, maximum bit tip-to-drum and bit-to-chain dimension allow free cutting action.

Deep Cut Capability
The 17CM with remote control and multiple flooded bed dust collector options provides deep cut capability. Deeper cuts mean fewer place changes which in turn means increased production.

Traction Drive System
The 17CM utilizes the JOY variable frequency AC drive. The system includes AC traction motors which provide excellent performance in a small package. To transfer electric power to the crawler chain, the 17CM uses the exclusive JOY all-gear traction drive. This drive eliminates all the maintenance associated with the traditional roller chain final drive and adjustable position traction reducer.

Conveying Systems
The conveying system on the 17CM features standard 70HP / 53kW single drive motor or optional 60 HP / 45kW dual drive motors for increased production capability. The high strength gathering head frame will accept either the single motor or the dual motor drive.


The 17CM employs Joy’s multimotor concept with outboard access to motors, gearcases, controllers and other major components. Joy’s philosophy calls for the isolation of each major component for easier troubleshooting and maintenance. The 17CM has six motors used in conjunction with direct gearing to power the traction, cutting, gathering and hydraulic systems of the machine. This means that the 17CM can be serviced or repaired quickly and easily, thus reducing downtime and maintenance costs.

Others: Please contact us for information.
- 14CM Series
- 12CM/HM Series
- Miner Bolters
- Satellite Bolters
- Joy Network Architecture