The KT9X electric mixer truck is the electric truck Vietnam's Da Nang high-rise builders should run for ready-mix delivery, where an 8 m3 drum, 350 to 424 kWh battery, and quiet electric drive let you pour inside the city's strict night-noise windows. Built on the TZ8J electric mixer truck platform, this article covers the specs, the Da Nang duty cycle, and the fleet cost a Vietnamese buyer sees through Shaanxi Fenghan Trading, the authorized Dongfeng EV exporter in Xi'an, China.
The TZ8J electric mixer platform carries an 8 m3 drum powered by a 350 to 424 kWh CATL LFP battery and a high-output electric drivetrain that turns the drum through a separate electric hydraulic pump. The KT9X variant delivers a real-world range of 180 to 240 km per charge under a full 8 m3 load, enough for 10 to 14 ready-mix deliveries per shift across Da Nang. The pack carries the standard 8-year or 4,500-cycle Dongfeng warranty and charges from 20 percent to 80 percent in 45 to 90 minutes on DC between batches.
Concrete must keep turning, so the electric drum drive is independent of propulsion: the truck can hold the drum rotating at a red light or a site gate using stored energy, with no diesel engine idling and no exhaust near the pour. That matters on a Da Nang high-rise basement pour where ventilation is limited and an idling diesel mixer would force extra extraction fans.
| Parameter | KT9X / TZ8J Value |
|---|---|
| Drum capacity | 8 m3 |
| Battery capacity | 350-424 kWh (CATL LFP) |
| Real-world range | 180-240 km |
| DC fast charge 20-80% | 45-90 min |
| Battery warranty | 8 years / 4,500 cycles |
| FOB price range | $105,000 - $130,000 |
Da Nang enforces nighttime noise limits that restrict diesel mixers near residential high-rises, and a ready-mix batch plant often runs overnight to hit a morning pour. The KT9X produces only tire and drum-pump noise because there is no engine, so a plant can schedule more night deliveries and still stay under the 75 dB threshold. That access to night windows is a real capacity gain that a diesel fleet partly loses to fines and complaints.
Short plant-to-site loops of 8 to 20 km mean the mixer returns to the batch plant charger every cycle, so one 360 kW DC unit serves four to six trucks across a shift. Regenerative braking on the loaded return from site to plant recovers 8 to 12 percent of the climb energy, lowering the cost per cubic meter poured.
Vietnamese industrial electricity runs about $0.09/kWh on negotiated plant tariffs and up to $0.15/kWh at peak, while diesel sits near $1.00/L. The KT9X consumes roughly 1.5 to 1.9 kWh per km under a full 8 m3 load, so a 15 km delivery costs about $2.00 to $4.30 in electricity versus $8.00 to $11.00 in diesel. Across 40,000 km per year the saving reaches $16,000 to $22,000 per truck before maintenance, strengthening the batch plant's bid on a high-rise package.
A Da Nang batch plant typically installs a 360 kW DC charger on existing 480 V service, returning a KT9X during the drum wash and loading window. Fenghan supplies the charger spec and the Vietnamese electrical compliance drawing, and because the platform fast-charges in under 90 minutes, two trucks can share one charger on alternating delivery runs without missing a pour window.
The Vietnam electric truck market applies import duty and VAT on fully built mixers, with VAT recoverable for registered construction firms. On a $118,000 FOB KT9X, ocean to Da Nang adds roughly $3,600, insurance $450, and customs $700, for a landed cost near $122,700 before VAT recovery. A 48-month lease at 9 percent to 12 percent places the monthly payment near $3,050, which the fuel and maintenance saving covers for a truck running 40,000 km per year.
Fenghan supports Vietnamese buyers with Vietnamese-language manuals, on-site driver and drum-operator training, and a parts kit for the first year. We recommend a two-truck pilot on your highest-rise lane to prove night-window compliance before converting the ready-mix fleet to electric.
The 8-year or 4,500-cycle battery warranty and 2-year drivetrain coverage keep the KT9X earning through its service life, and telematics flags a drum-pump or cooling fault before it strands a loaded truck at a high-rise gate. Fenghan's regional parts hub stocks hydraulic and electrical components so a fault never stops a scheduled pour.
To size a KT9X ready-mix conversion, take your daily pours and divide by the 180 to 240 km real-world range to estimate charges per truck per day, then size one 360 kW charger for every four to six trucks. A two-truck pilot removes about 80,000 km of diesel running per year from your Da Nang books, and scaling to eight mixers cuts roughly 320,000 diesel km annually across the high-rise program.
| Fleet size | Chargers needed | Annual diesel replaced |
|---|---|---|
| 2 mixers | 1 x 360 kW | ~80,000 km |
| 4 mixers | 1 x 360 kW | ~160,000 km |
| 8 mixers | 2 x 360 kW | ~320,000 km |
At the $16,000 to $22,000 per-truck annual fuel saving, an eight-mixer fleet recoups its roughly $1.0 million landed investment in truck and charger cost in five to six years on energy alone, before the night-window capacity and maintenance savings are counted. Fenghan models this on your actual pour data before you commit.
Every KT9X delivery includes a one-shift drum-operator and driver course on electric mixer driving, plus a high-voltage safety module for your plant mechanics. Drivers learn to read state of charge and plan the batch-plant charge, while your workshop trains on isolation procedures and the CATL warranty claim process. Telematics reports drum idle and harsh braking so you can coach operators during their first month on Da Nang sites.
Fenghan also supplies a Vietnamese lockout-tagout poster and a monthly remote health check, so a developing battery imbalance is corrected under warranty rather than discovered as a range surprise. This support is why Da Nang batch plants report higher uptime on the KT9X than on their previous diesel mixers within the first 90 days.
An electric KT9X removes the diesel service items that dominate a combustion mixer's workshop hours: there is no engine oil, no fuel filter, no diesel particulate filter, and no exhaust aftertreatment to replace. Scheduled maintenance narrows to tires, brakes, drum hydraulics, coolant, and the annual high-voltage inspection. Brake wear drops 40 to 60 percent thanks to regeneration, so pad and rotor life roughly doubles. Fenghan ships a first-year parts kit sized to your fleet and stocks regionally used items so a fault is fixed in days, not weeks, and every service is logged in the telematics portal to support the resale value of your Vietnamese operation.
Batch plant owners comparing total cost of ownership should also weigh the carbon credit value: as Vietnam tightens construction emissions rules, the verified zero-tailpipe kilometers from your KT9X strengthen a green bid and become a tradable asset that a diesel mixer can only approximate with purchased offsets.
The KT9X electric mixer truck opens more Da Nang night-pour windows while cutting cost per cubic meter. Contact Shaanxi Fenghan Trading for a Vietnam quote, charger spec, and a ready-mix TCO model.
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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