Continuous miner

12HM series

  • Maximum cutting height 6 000 mm 236 in
  • Minimum cutting height 1 700 mm 67 in
  • Total machine power 730 - 1 251 kW 978 - 1678 HP

Ready for today’s industrial minerals challenges

As society’s demand for industrial minerals grows, so do your challenges. To support you, Komatsu offers the 12HM (Heavy-duty Miner) series continuous miner, that includes the 12HM26, 12HM27, 12HM36 and 12HM46. Engineered to help productively mine industrial minerals like trona, gypsum, potash and salt mines around the world. The flagship machine, the 12HM46, is the largest and most powerful continuous miner manufactured.

  • 50% more cutting power*
  • Up to 30% more mass*
  • Production increase up to 70%*
  • *12HM46 compared to 12HM26/12HM27/12HM36

Features and benefits

GPL3067.psd

Corrosion protection

Pins and bushings have been designed to guard against corrosion, a common problem in industrial mineral operations.
GPL9477.jpg

Closed loop cooling

To eliminate discharging cooling water onto extracted material, the 12HM continuous miners can be supplied with a closed loop cooling system.
GPL8376.jpg

Applicable in industrial minerals

Specifically designed to operate in tough industrial minerals applications, such as salt, potash, trona and gypsum.
GPL9462.jpg

High production

With the most mass and installed power, up to1251 kW (1678 HP), the 12HM46 is engineered to be our most productive continuous heavy miner.
GPL2840.jpg

Drill and blast alternative

Continuous miners offer a highly productive alternative to traditional drill and blast mining systems.
ContinuousMiner_12HM_FandB_maxcuttingheight_GPL10014.psd

Adaptability

With multiple models available, Joy 12HM continuous miners can be applied in seams from 1.8 to 6.0 meters (72 - 236 inches).

Specifications for 12HM series continuous miners

Close all Expand all
US system Metric
General
   12HM26 12HM27 12HM36 12HM46

Cutter head design

Ripperveyor head

 Solid head Ripperveyor head Ripperveyor head

Cutter head diameter

1 475 mm

1 200 mm
1 310 mm
1 376 mm
1 475 mm 1 475 mm
1 588 mm*

Maximum cutting height

3 830 mm
4 600 mm
3 350 mm
3 960 mm
5 000 mm
4 200 mm
4 600 mm
3 500 mm
4 500 mm
5 500 mm
6 000 mm

Minimum cutting height
(Without dust collector)

1 820 mm
2 100 mm

1 700 mm
2 100 mm
2 410 mm
1 900 mm
2 400 mm
1 860 mm
2 700 mm
2 800 mm
3 000 mm

Weight

95 255 kg 86 180 kg 117 935 kg 154 220 kg

Ground pressure

231 kPa 209 kPa 269 kPa 260 kPa
Ground clearance 305 mm 305 mm 305 mm 305 mm
Conveyor width 965 mm 965 mm 965 mm 965 mm
Tram speed First - 4.6 m/min
Second - 9.1 m/min
Third - 19.8 m/min
First - 4.6 m/min
Second - 9.1 m/min
Third - 19.8 m/min
First - 4.6 m/min
Second - 9.1 m/min
Third - 19.8 m/min
First - 4.6 m/min
Second - 9.1 m/min
Third - 19.8 m/min

Machine input voltage

950 V @ 60 Hz
2,300 V @ 60 Hz
4,160 V @ 50 Hz

950 V @ 60 Hz
2,300 V @ 60 Hz
4,160 V @ 50 Hz
2,300 V @ 60 Hz
4,160 V @ 60 Hz
3,300 V @ 50 Hz
2,300 V @ 60 Hz
4,160 V @ 60 Hz
3,300 V @ 50 Hz

Cutter

235 kW @ 950 V, 60 Hz
250 kW @ 2,300 V, 60 Hz
250 kW @ 4,160 V, 60 Hz

240 kW @ 950 V, 60 Hz
245 kW @ 2,300 V, 60 Hz
245 kW @ 4,160 V, 60 Hz
250 kW @ 2,300 V, 60 Hz
250 kW @ 4,160 V, 60 Hz
330 kW @ 3,300 V, 50 Hz

250 kW @ 2,300 V, 60 Hz
250 kW @ 4,160 V, 60 Hz
455 kW @ 4,160 V, 60 Hz*
330 kW @ 3,300 V, 50 Hz

Pump

40 kW

40 kW 70 kW @ 2,300 V, 60 Hz
70 kW @ 4,160 V, 60 Hz
55 kW @ 3,300 V, 50 Hz
120 kW
Gathering Head 50 kW x 2 @ 60 Hz
45 kW x 2 @ 50 Hz
50 kW x 2 @ 60 Hz
45 kW x 2 @ 50 Hz
50 kW x 2 @ 60 Hz
45 kW x 2 @ 50 Hz
50 kW x 2 @ 60 Hz
45 kW x 2 @ 50 Hz

Total Power

730 kW @ 950 V, 60 Hz
750 kW @ 2,300 V, 60 Hz
750 kW @ 4,160 V, 60 Hz

740 kW @ 950 V, 60 Hz
750 kW @ 2,300 V, 60 Hz
750 kW @ 4,160 V, 60 Hz
790 kW @ 2,300 V, 60 Hz
790 kW @ 4,160 V, 60 Hz
925 kW @ 3,300 V, 50 Hz
841 kW @ 2,300 V, 60 Hz
841 kW @ 4,160 V, 60 Hz
1 251 kW @ 4,160 V, 60 Hz*
990 kW @ 3,300 V, 50 Hz

*Optional, higher power cutterhead

   12HM26 12HM27 12HM36 12HM46

Cutter head design

Ripperveyor head

 Solid head Ripperveyor head Ripperveyor head

Cutter head diameter

58 in

47.2 in
51.5 in
54 in
58 in 58 in
62.5 in*

Maximum cutting height

12 ft. 6 in
15 ft. 1 in

11 ft.
13 ft.
16 ft. 5 in
13 ft. 9 in
15 ft. 1 in

11 ft. 6 in
14 ft. 9 in
18 ft.
19 ft. 9 in

Minimum cutting height
(Without dust collector)

6 ft. 2 in
6 ft. 10 in

5 ft. 7 in
6 ft. 10 in
8 ft.
6 ft. 3 in
7 ft. 10 in
6 ft. 1 in
8 ft. 10 in
9 ft. 2 in
9 ft. 10 in

Weight

210,000 lbs.

190,000 lbs. 260,000 lbs. 340,000 lbs.

Ground pressure

34 psi 30 psi 39 psi 38 psi
Ground clearance 12 in 12 in 12 in 12 in
Conveyor width 38 in 38 in 38 in 38 in
Tram speed First - 15 fpm
Second - 30 fpm
Third - 65 fpm
First - 15 fpm
Second - 30 fpm
Third - 65 fpm
First - 15 fpm
Second - 30 fpm
Third - 65 fpm
First - 15 fpm
Second - 30 fpm
Third - 65 fpm

Machine input voltage

950 V @ 60 Hz
2,300 V @ 60 Hz
4,160 V @ 50 Hz

950 V @ 60 Hz
2,300 V @ 60 Hz
4,160 V @ 50 Hz
2,300 V @ 60 Hz
4,160 V @ 60 Hz
3,300 V @ 50 Hz
2,300 V @ 60 Hz
4,160 V @ 60 Hz
3,300 V @ 50 Hz

Cutter

315 HP @ 950 V, 60 Hz
335 HP @ 2,300 V, 60 Hz
335 HP @ 4,160 V, 60 Hz

322 HP @ 950 V, 60 Hz
328 HP @ 2,300 V, 60 Hz
328 HP @ 4,160 V, 60 Hz
335 HP @ 2,300 V, 60 Hz
335 HP @ 4,160 V, 60 Hz
442 HP @ 3,300 V, 50 Hz

335 HP @ 2,300 V, 60 Hz
335 HP @ 4,160 V, 60 Hz
610 HP @ 4,160 V, 60 Hz*
442 HP @ 3,300 V, 50 Hz

Pump

54 HP

54 HP 94 HP @ 2,300 V, 60 Hz
94 HP @ 4,160 V, 60 Hz
74 HP @ 3,300 V, 50 Hz
161 HP
Gathering Head 67 HP x 2 @ 60 Hz
60 HP x 2 @ 50 Hz
67 HP x 2 @ 60 Hz
60 HP x 2 @ 50 Hz
67 HP x 2 @ 60 Hz
60 HP x 2 @ 50 Hz
67 HP x 2 @ 60 Hz
60 HP x 2 @ 50 Hz

Total Power

978 HP @ 950 V, 60 Hz
1,005 HP @ 2,300 V, 60 Hz
1,005 HP @ 4,160 V, 60 Hz

992 HP @ 950 V, 60 Hz
1,005 HP @ 2,300 V, 60 Hz
1,005 HP @ 4,160 V, 60 Hz
1,059 HP @ 2,300 V, 60 Hz
1,059 HP @ 4,160 V, 60 Hz
1,238 HP @ 3,300 V, 50 Hz
1,128 HP @ 2,300 V, 60 Hz
1,128 HP @ 4,160 V, 60 Hz
1,678 HP @ 4,160 V, 60 Hz*
1,325 HP @ 3,300 V, 50 Hz

*Optional, higher power cutterhead

Support you can count on

Technology that works as hard as you do

Komatsu employees remotely monitoring mining equipment health
We help solve our customers’ toughest challenges using data-driven intelligence, collaboration and service execution. Our goal is to help reduce costs and increase productivity to help our customers achieve their operating and financial goals.
Miners looking at Faceboss screen on 12HM36 continuous miner
The electronic heart of our continuous miners combines operator assistance tools, automated sequences, advanced diagnostics, machine performance monitoring and more to help you optimize your operation.
Joy OptiDrive
Patented Joy OptiDrive AC system integrates software with the electronic and mechanical systems to provide a durable, maneuverable machine. 

Find what works for you