Joy, 14BU27, Gathering arm loader


Joy 14BU27

  • Up to 36 tonnes/minute (39.7 tons/minute) capacity
  • 965 mm (38 in.) wide conveyor
  • 1,500 mm (59 in.) diameter loading arms
  • Dual-drive gathering head with either high-output continuous loading arms or gathering arms available
  • SMART conveyor package, including dual-sprocket conveyor, quiet tail, and hydraulic tensioning system
  • OptiDrive traction system for smooth transmission responsiveness
  • Faceboss control platform to facilitate an optimal balance of production rate and cost
  • Radio remote control for greater flexibility when working in hazardous zones
  • Air-cooled motors mean no water lines or filters are required
  • Thermo-siphon cooled controller case
  • Single-bolting rig (optional)
  • On-board camera (optional)

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Today’s new generation Joy loader was designed on the foundation of safety, durability and reliability found in the Joy continuous miner. It leverages several proven continuous miner designs including the Optidrive traction system, latest crawler chain, gathering gearcases and conveyor system technology.

The 14BU27 gathering arm loader, with up to 36 tonnes/minute (39.7 tons/minute) capacity, is designed as a utility machine for use in both production and auxiliary activities allowing great flexibility for your individual mine requirements.

Traction system

The 14BU27 includes our OptiDrive AC traction system, which is coupled to a compact, all-gear transmission to provide smooth, reliable service. The cutter motor feedback and the traction differential features optimize sump performance even in the most demanding applications. Finally, the brushless AC traction motors are highly reliable and require minimal maintenance.

Reduced noise

The 14BU27 features a SmartConveyor package, including our patented dual-sprocket conveyor chain, quiet tail, and hydraulic tensioning system. Pump/tank, bumper, and controller case isolators further reduce noise to provide a safer working environment for your operators.

Increased capacity and faster loading

The 14BU27 includes a 965 mm (38 in.) wide conveyor for maximum loading capacity, improving your overall productivity. The 14BU27 comes with 1500 mm (59 in.) diameter centrifugal loading arms (CLAs) improving productivity by maximizing loading capacity. Optional gathering arm style system is also available.

Reduced maintenance costs

The 14BU27 uses the same platform as our best-selling 14CM continuous miners, including the following components:

  • Traction drives and traction chains
  • Gathering head gear case and conveyor chain
  • Electrics and OptiDrive

If your mining application includes both our 14CM continuous miners and 14BU27 loader, you can stock fewer replacement parts as well as leverage your existing maintenance knowledge to save both time and money.  

Basic chassis height 1,067 mm 42 in.
Seam height 1,651 mm (minimum) 65 in. (minimum)
Ground clearance 203 mm 8 in.
Capacity: tonnes per minute Up to 36 TPM Up to 39.7 TPM
Flex. sideboards 203 mm high 8 in. high
Weight: base machine 29,500 kg (approximate) 65,100 lbs. (approximate)
Weight: with bolter option 33,600 kg 74,000 lbs.
Gathering head motors 2 @ 40 kW 2 @ 54 hp
AC traction motors 2 @ 45 kW 2 @ 60 hp
Pump motor 1 @ 30 kW 1 @ 40 hp
Installed power 200 kW 268 hp
Hydraulic oil tank capacity:
Main tank
Chassis cooler
Gathering head cooler
Total capacity
95 L
38 L
106 L
239 L
25 gallons
10 gallons
28 gallons
63 gallons
Cooling system Air-cooled motors
Thermo-syphon cooled controller
Crawler chain 508 mm wide x 178 mm pitch 20 in. wide x 7 in. pitch
Recommended trailing cable 244 m length - size #2 267 yd length - size #2

Faceboss control system

Competitive and market pressures mean that you have to produce product at an ever-increasing rate, while always striving to decrease your cost per ton. These goals are only made more difficult by the worsening attributes of available reserves and deteriorating operating conditions.

The Faceboss control system enables your operators to operate equipment at an optimal balance of production rate and cost per ton using a powerful tool set that includes operator assistance tools, automated sequences, advanced diagnostics, machine performance monitoring, and analysis tools. Faceboss is the standard control system platform on all Joy underground mining equipment, which ensures that you receive the same level of optimization for all your Joy equipment.

Learn how Faceboss can help reduce your operating costs. 

OptiDrive AC

Joy OptiDrive, an AC variable-frequency drive system, integrates software with the electronic and mechanical systems to provide the following features:

  • Increased tram speed: significantly increases the tractive effort available, improving the equipment’s ability to climb gradients and negotiate difficult roadway conditions
  • Regenerative braking: supplements the mechanical brakes, allowing them to run cooler with extended wear life; regenerative braking is highly effective at automatically maintaining constant speeds when descending gradients
  • Less maintenance: no commutator brushes to inspect and replace mean AC traction motors are typically more reliable, more durable, and require less maintenance than DC traction motors

Learn how OptiDrive can help improve your productivity.

Advanced bolting capabilities

The 14BU27 features an optional bolting rig for auxiliary and center bolting capabilities. The system includes an automated temporary roof support (ATRS) system and a full bolter canopy to protect the bolter operator and create a safer mining environment.  The drill is a dry Joy HGX 210 unit with a 500-600 rpm rotation unit that can produce 420 N-m (310ft-lbs) of torque. Its collapsed length is 1080mm (42.5 in) and an extended length of 2184mm (84.5 in). 

Rock dusters

The 14BU27 can be fitted with a customer-supplied rock duster. Please contact your local sales engineer to learn more about this feature.

On-board camera system

An optional on-board camera system improves operator visibility, The system includes two cameras with one camera focused on the gathering head so the operator can watch the left side of the gathering head when he is cleaning the entry. The second camera is mounted on the right side to watch the trailing cable during tramming.  A single monitor is mounted inside the cab.

SmartZoneTM proximity detection system

The SmartZone proximity detection system is an integrated training device that helps teach your personnel to operate a loader from safe working zones, as well as stay clear of related danger zones. The SmartZone system tracks, recognizes, and logs operator movements around the machine to provide in-depth analysis for your training initiatives. This option is only available in US and Canada.

Learn how SmartZone keeps train your mine personnel.


The SmartConveyor uses the latest sound abatement technologies to reduce sound output while improving maintainability. Research results have shown a 45% and 65% noise exposure reduction for the operator when compared to a standard machine (Mining Engineering, 2011, Vol. 63, No. 7, pp. 83). SmartConveyor combines our patented dual-sprocket conveyor chain and auto-tensioning features to improve the operating environment.