TSE International undertook a unique research & development project to develop a low-emissions puller that would match the performance of existing hydraulic-drive 4000 lb. puller equipment.
To minimize noise and engine emissions, the new puller required a battery power source that could generate the required pulling strength and also drive a matching electric brake. To be practical, the system also had to be efficient enough to sustain normal operating cycles in the field.
The first trial of DPT40E unit was in a distribution project pulling in all three phases of 5000 feet of 477 conductor with tower spans of 200 feet. Only 3% of the available battery power was used in completing the pull. Observers noted that due to the fact that the system was very quiet, it improved communication between operators significantly, while the elimination of hydraulic drives greatly reduced the risk of soil contamination. Patent application for the DPT40E drive system is pending.
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