Haiphong's Lach Huyen deep-sea terminal has turned northern Vietnam into a first-call port for mainline vessels, and its yard tractors run continuous cycles between quay cranes, stacks and gate lanes. That closed-loop, depot-based duty is the strongest electric truck application in any port - and Vietnam's manufacturing exporters increasingly ask their port partners for low-emission handling. The Dongfeng TE46 electric terminal tractor, with a 400 kWh CATL LFP pack and 510 kW LvKong motor, is built for this work. Here is the Haiphong case.
Terminal work at Lach Huyen runs 350-500 moves per tractor per day across two or three shifts, with trip lengths of 400-1,000 m and sustained speeds under 30 km/h. Diesel yard tractors idle 30-45% of engine hours in crane queues - pure fuel waste that the TE46 eliminates, drawing only cabin and systems power at standstill while regenerative braking recovers every deceleration. Measured terminal energy consumption runs 1.8-2.4 kWh per km; a full 20-hour double shift consumes 60-75% of the pack.
The port's expansion phases keep adding yard area, which stretches trip lengths - a trend that favours the 400 kWh pack's reserve over smaller terminal EVs, and keeps the tractor productive as the terminal grows into its deep-sea volumes.
| Item | TE46 specification | Terminal relevance |
|---|---|---|
| Battery | CATL LFP 400 kWh, liquid-cooled | Full double shift on one charge |
| Motor | LvKong 510 kW peak | Instant torque for loaded trailer starts |
| GCW | 42 t | Loaded 40 ft boxes on terminal trailers |
| Charging | DC fast, 20-80% in about 50 min | Shift-change top-up window |
| Cab | Terminal layout, panoramic glass, rear door option | Crane-line safety and fast coupling |
| Warranty | 8-year / 450,000 km battery | Outlasts the terminal fleet cycle |
The layout that works: two 180-240 kW DC chargers at the tractor yard on the natural return path from the crane lines, plus one unit serving any remote ro-ro or breakbulk apron. Tractors plug in during the 30-45 minute shift handover; that window restores a full shift of energy. Vietnamese industrial tariffs keep the energy cost per move near one-third of diesel, and the terminal's own grid capacity - sized for quay cranes - absorbs fleet charging without transformer drama.
Northern Vietnam adds two durability tests: a monsoon season with horizontal rain and occasional typhoon exposure, and salt-laden coastal air year-round. The TE46's IP67 high-voltage sealing handles the water; the marine coating package handles the corrosion. The maintenance additions versus inland duty are modest - monthly connector inspection, quarterly chassis wash, and cooling-pack cleaning after dust-heavy dry-season weeks. Heat at 33-37 C with high humidity sits comfortably inside the liquid-cooled envelope; annual range variation stays within 8%.
Diesel yard tractors burn 18-25 L/hour in this duty - $30,000-45,000 per tractor per year at Vietnamese fuel prices on a two-shift pattern. The TE46's electricity for the same work costs $8,000-12,000. Maintenance falls by more than half. Vietnam's Decision 876 electrification program and the green-port commitments of the major terminal operators, covered on our Vietnam electric truck market page, add procurement weight: port concessions increasingly write emissions performance into terminal operating agreements.
A terminal tractor works inside a larger machine - the terminal operating system dispatching every move - and the TE46's telematics platform exposes the data that integration needs: position, state of charge, move counts and availability status feed the dispatch layer so charge windows and assignments plan together. The practical pattern at ports like Haiphong runs through the fleet-management middleware the terminal already operates; Shaanxi Fenghan Trading's commissioning team supports the data mapping during the pilot phase. The payoff is operational: dispatch sees which tractors need charge windows before the shift plan commits them, crane lines never wait on a truck that should have been charging, and the energy data flows into the terminal's sustainability reporting - the number port concessions increasingly publish.
Delivery to Haiphong runs by regional ro-ro or container vessel on short Asian routes, with the export package - certificate of origin, inspection reports, UN38.3 and MSDS - prepared for Vietnamese customs and port authority receiving. Commissioning covers charger integration with the terminal's electrical contractor, driver coaching on the actual crane lines, and technician certification for the port workshop. The two-year fast-moving parts kit arrives with the fleet; high-voltage components ship from regional stock within 72 hours. The pilot-to-fleet structure most terminals prefer puts measured energy-per-move data in front of concession management within 60 days - the number that scales the program and supports the green-port commitments that terminal operating agreements increasingly contain.
Shaanxi Fenghan Trading recommends a two-tractor pilot on the busiest crane line, instrumented through telematics for 60 days, then scaling against measured energy-per-move data. The TE46 electric terminal tractor arrives with chargers, commissioning, driver coaching and spares as one package. Send your berth layout and shift pattern for a fleet sizing model with per-move costs against your diesel fleet.
Ready to electrify your fleet? Contact Shaanxi Fenghan Trading — authorized Dongfeng EV truck exporter. WhatsApp: +86 153 1943 1311 | Email: sales@fenghan-trade.com | dongfengevtrucks.com
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