Diesel locomotives are designed for horizontal rail transport especially in mines and enclosed spaces.  They are also intended for use in explosive environment with coal dust and methane in volume up to 1.5 %, and they are certified according to European safety standards and ATEX standards. They can work on slopes of rail lines up to 35‰, with track gauge from 500 to 900 mm, at ambient temperatures from +2 to +40 °C.

Locomotives are weighing from 5 to 15 tons; they are composed of three parts, two cabins and the central part where engine and chassis are located. Cabins are removable for easier transport of locomotives into underground tunnels. Diesel engines with power from 35 to 120 kW are water-cooled. Transmission of torque moment from the engine to the axle gear is through hydrostatic transmission that provides smooth operation. The chassis is of dual-axle type, transmission to the second axle is assured by inter-axle cardan shaft. Locomotive braking is performed by two independent systems on both axles: hydraulic and mechanical.

 

TECHNICAL PARAMETERS
DH35.1  DH70D3  DH70D3.1  DH70D3.2  DH70D3.3  DH70D3.4  DH120D.1 
All-up weight (t)  7-8 10-12 10-12 10-12 12 12-12,5  14,5-16 
Wheel track R  (mm)  550-620  560-900  560-900  580-900  750-900  750 600-900 
Min. curve radius  (m)  10 12 12 12 15 12 15
Axles 2/2 2/2 2/2 2/2 2/2 2/2 2/2
Max. traction  (kN)  20 30 28-30  30 31-34  31 45
Max. speed ( km.h-1)  18 18 18 18 18 18 18
Max. power of engine (kW)  43 63 90 93 93 93 120
Type of diesel engine
John Deere  John Deere  John Deere Turbo  John Deere Turbo Deutz  John Deere  John Deere 
Hydraulic system
Rexroth Rexroth Rexroth Rexroth Rexroth Rexroth Rexroth
Overall length of locomotive   (mm)  4680 5500 5500 5200-5500  5700 5680 6000
Overall width without moulding   (mm)  600-1250  1000-1300  1000-1300  1000-1300  1200-1300  1300 1300
Overall width with moulding  (mm)  1050-1350  1160-1460  1160-1460      1524  
Height (mm)  1500 1600 1600 1600 1600 1600 1600
Length of middle part (mm)  2280 2900 2900 2600-2900  3000 2900 3000
Axle base (mm)  1150 1150 1150 1150 1250 1250 1450
Wheel diameter (mm)  450 550 550 550 630 550 620
Rail clearance (mm)  80 90 90 90 130 90 130
Rail clearance of the hitch (mm) based on customer requirements

 

Further technical specifications can be found here.

Joomla Template by Joomla51.com