Doosan’s DL420-5 now offers continuously variable transmission

A focus for Doosan at CONEXPO-CON/AGG is the DL420-5 CVT, the company’s first wheel loader that combines a traditional automatic transmission and a hydrostatic transmission. The CVT (continuously variable transmission) wheel loader is making its North American debut at the Las Vegas exhibition and will be available later this year in the US and Canada.
March 10, 2017 Read time: 2 mins
Doosan’s DL420-5 CVT wheel loader

A focus for 695 Doosan at CONEXPO-CON/AGG is the DL420-5 CVT, the company’s first wheel loader that combines a traditional automatic transmission and a hydrostatic transmission.

The CVT (continuously variable transmission) wheel loader is making its North American debut at the Las Vegas exhibition and will be available later this year in the US and Canada.

Unlike torque converter transmissions, the DL420-5 CVT wheel loader’s automatic transmission is a one-to-one ratio with the engine. Automatic transmission improves powertrain efficiency in load-and-carry operations.

With this new transmission offering, Doosan says that DL420-5 CVT owners and operators will see an increase in machine performance and productivity when working in digging, loading and lifting applications.

For most tasks, operators will use the hydrostatic part of the transmission, which is more efficient than an automatic transmission in low-speed applications. This hydrostatic system provides good overall performance at lower engine rpms. An on-board colour and text indicator on the dash panel informs operators when the machine is operating in the hydrostatic mode.

The result, says Doosan, is better fuel efficiency because of improved performance at lower engine rpms. There is also low heat development in the digging range.

Similar to the other Doosan wheel loaders, operators can choose between three power modes that adjust the maximum engine rpm based on the operator’s preference and the application. Since the DL420-5 CVT wheel loader uses a hydrostatic transmission, the engine rpm is not directly correlated to the machine’s travel speed, so maximum travel speed remains unaffected.

The popular auto-shutdown system is also available on the new DL420-5 CVT wheel loader to help owners and operators save valuable fuel during non-working conditions. Operators can configure the idle time before auto shutdown, from 3-60 minutes. When enabled, the feature will shut down the wheel loader’s engine when the preset idle time is met.

For more information on companies in this article

Related Content

  • CMI launches second Roto-Mill cold planer
    March 13, 2017
    CMI Roadbuilding has taken the wraps off a second Roto-Mill cold planer at the CONEXPO-CON/AGG show. The RM-6 joins the larger RM-7 launched last year, offering much of the performance of the bigger machine but with more compact dimensions. Powered by a Tier 4 Final Cummins QSX15 diesel engine, delivering 466kW, the RM-6 has a hydrostatic drive system with variable speed ground motors.
    Read More
  • Key moves for diesel engine sector
    January 22, 2014
    A series of key moves are being seen in the diesel engine sector, with major firms offering new solutions – Mike Woof writes Several of the major engine builders are introducing key innovations from the beginning of 2014 to meet with tough new emissions regulations for Europe and the US. Another key issue is providing solutions for engine customers in countries with less stringent regulations on emissions. Caterpillar has developed options for customers in lesser regulated countries who may wish to buy seco
    Read More
  • MTVs help transfer material efficiently
    June 20, 2016
    Mention the letters MTV and most people will think you’re referring to Music Television, the firm that revolutionised the music video. But in the road construction sector the letters have another meaning: Material Transfer Vehicle. Roadtec pioneered the MTV concept with its Shuttle Buggy, which it introduced in 1989. The concept was a novel one, providing a transition between the truck hauling the asphalt to the site and the asphalt paver. The idea of the machine was that it would provide a buffer system
    Read More
  • Compact performance
    February 6, 2012
    Doosan is aiming its versatile DX235LCR versatile short tailswing excavator squarely at the growing market for reduced radius machines.
    Read More

Highlighted Content