Experience | Coal Compaction

Coal Compaction

Take no risks

Dressta dozers can be equipped with additional mounting compaction equipment for slope rolling tasks. By compacting the surface area of the slope air pockets are eliminated, thus reducing the risk of heat build-up leading to the combustion of trapped air. The Dressta slope rolling attachment itself is both reliable and easy to operate.

We are able to listen, advise and implement Special Feature Requests (SFR) to ensure your slope rolling attachment is ideally matched for the task at hand. Take a look at how our machines excel on the slopes.

If you cannot find the model below with the appropriate engine configuration (Emission Levels: Tier 3, Tier 4 Interim, Tier 4 Final) for your region, please email us or contact your local dealer.

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Steel Drum Attachment

Slope rolling tasks are performed by attaching a specially designed steel compaction drum to a winch line on the back of the Dressta dozer, allowing the compaction drum to be deployed on the slope of the stockpile.

Reliable Drum Bracket & Support

The drum is equipped with brackets to attach it to a tense winch line, with a line tensioning system to prevent it contacting the slope during or after operation. A mechanism ensures optimal line guiding and tensioning, and a cleaning system is implemented to remove coal contamination.

The joystick-controlled drum support system means the crawler dozer can be used for other tasks while the compaction drum is attached.

Superior Dozer Stability

Dressta crawler dozers can operate on a maximum slope gradient of 25° for length-wise slopes, and 20° for cross-wise slopes. 

Machines Engineered for Coal Compaction

Optimal power to weight ratio for unrivalled traction & drawbar pull…

The TD-25R Extra sets the standards for others to follow and is a result of DRESSTA’s experience in designing highly efficient and productive Crawler Dozers.

Design concepts utilised in the TD-25R Extra include, optimisation of weight distribution, modular construction, and use of a one-piece main frame, two-speed Steering Drive and a 3-point track mounting system. Optimal performance is achieved when machine weight is matched to power and the TD-25R Extra provides a second-to-none balance of weight for traction and power for unrivalled drawbar pull.


Key Specifications

Engine Manufacturer / Model / TierCummins/QSX 15/T4F
Displacement15.00 l915.4 in3
Rated Speed2000 RPM
Engine Output - Net280 kW375 hp
Rated Speed - Torque1200 RPM
Engine Torque1993 Nm1,470.0 lb/ft
Transmission Type - Fwd Rev SpeedsPowershift - 6/6
Carrier Rollers / Track Rollers2/6
Shoe Pitch250 mm9.8 in
Track Shoe Width560 mm22.0 in
Ground Contact Area36600 cm25,673.0 in2
Number of Shoes39
Fuel Tank770 l203.4 Gal(US)
Hydraulic Tank130 l34.3 Gal(US)
Blade Capacity9.60 m312.6 yd3
Height Top of ROPS (Max)3800 mm149.6 in
Ground Clearance576 mm22.7 in
Width - Over Tracks2700 mm106.3 in
Track Length - On Ground3270 mm128.7 in
Blade Width4050 mm159.4 in
Ground Clearance576 mm22.7 in
Speed Forward - Maximum10.30 km/h6.4 MPH
Speed Reverse - Maximum12.20 km/h7.6 MPH
Ground Bearing Pressure111.00 kPa16.1 psi
Drawbar Pull Maximum793 kN178.3 lbf
Implement Pump Flow305.50 l/min10.8 cfm
Operating Weight
Operating Weight41250 kg90,940.6 lb

Features & Benefits


Designed to make hard work easy on the operator. The cab has a functional design to keep the operator engaged on the job. Operators will enjoy the newly added features that allow exceptional in-cab comfort.

  • The New ROPS/FOPS Integrated CAB, provides superior all round visibility which is essential for a safe and productive work environment on the jobsite.
  • The pressurised low vibration cab is quieter, and comes with a deluxe high-back air suspension seat that is angled at 140, large LCD display, A/C, sound suppression package.
  • It is fitted with a responsive low effort blade control joysticks for smoother ease of operation.


The TD-25 is powered by Cummins QSX 15 Engine that delivers steady torque and power for efficient dozing and ripping performance.

  • Robust powershift transmission combined with the unique 2-Speed Steering Drive transfers 100% engine power to both tracks for better load retention in turns and provides the best in the class Drawbar Pull, up to 20% more than competitors.
  • TD-25 is offered with a heavy duty rigid undercarriage with lubricated track chain and split master link.
  • It is fitted with variety of track shoes ranging from 22” up to 30” width.
  • Multiple choice of blades; Semi-U 9.6m3 (Standard), Full-U 11,5 m3 , Coal 21m3 and Angle 5.7m3 meet wide range of requirements for applications varying from though rocky quarries, to road & highway, conduction, landscaping and municipality works.
  • It is offered with 2 optional Parallelogram RipperS, multishank and single shank with unrivalled penetration up to 1,7 meter (deep dig option).


TD-25 is fitted with Electro Hydraulics, enabling intelligence systems to be fitted with ease. Systems such as Trimble / Leica / Topcon will be compatible and can be pre-installed.

  • Plug & Play ready for GPS fleet management systems.
  • Automatic transmission down shifting.
  • Transmission gears preselection.


Easy, ground level access to the Test Bar, sight gauges of al fluids, and greasing points ensuring increased uptime.

  • Modular component layout to make servicing and maintenance quicker, easier and cheaper.
  • High capacity fuel tank will make the operation possible through full 2 working shifts.


Key Specifications

Engine Manufacturer / Model / TierCummins/QSL9/T4F
Displacement8.90 l543.1 in3
Rated Speed2200 RPM
Engine Output - Net185 kW248 hp
Rated Speed - Torque1500 RPM
Engine Torque1213 Nm894.7 lb/ft
Transmission Type - Fwd Rev SpeedsPowershift - 6/6
Carrier Rollers / Track Rollers2/6
Shoe Pitch216 mm8.5 in
Track Shoe Width560 mm22.0 in
Ground Contact Area32000 cm24,960.0 in2
Number of Shoes40
Fuel Tank420 l111.0 Gal(US)
Hydraulic Tank115 l30.4 Gal(US)
Blade Capacity7.04 m39.2 yd3
Height Top of ROPS (Max)3480 mm137.0 in
Ground Clearance460 mm18.1 in
Width - Over Tracks2540 mm100.0 in
Track Length - On Ground2860 mm112.6 in
Blade Width3500 mm137.8 in
Ground Clearance460 mm18.1 in
Speed Forward - Maximum10.50 km/h6.5 MPH
Speed Reverse - Maximum12.20 km/h7.6 MPH
Ground Bearing Pressure73.50 kPa10.7 psi
Drawbar Pull Maximum610 kN137.1 lbf
Implement Pump Flow239.70 l/min8.5 cfm
Operating Weight
Operating Weight24340 kg53,660.5 lb

Features & Benefits