Both of these EV trucks wear 8x4 badges, both tip aggregate for a living, and both run CATL LFP battery packs with the same 8-year, 4,500-cycle warranty. Yet a fleet manager who orders the wrong one will feel the mistake every single shift. The Dongfeng TZ3Z is the heavy construction 8x4 — 55 t GCW, CATL 400 kWh, 510 kW-class drive — built to move maximum sand, stone and demolition on demanding sites. The KTA1 is the compact 8x4 — 31 t GVW, CATL 352 kWh — built for space-constrained city work and tight quarries where agility, tare weight and battery-swap compatibility matter more than raw tonnage. This comparison lays out the trade and gives you the decision rules we use when specifying fleets for export customers.
| Specification | Dongfeng TZ3Z | Dongfeng KTA1 |
|---|---|---|
| Configuration | 8x4 heavy construction tipper | 8x4 compact tipper |
| Weight rating | 55 t GCW / heavy rigid class | 31 t GVW |
| Battery | CATL 400 kWh LFP | CATL 352 kWh LFP |
| Drive | ~510 kW peak, construction suspension | High-torque dual motor, city gearing |
| Payload | ~25–28 t | ~17–19 t |
| Turning / footprint | Full-size site truck | Compact wheelbase, tight-site agility |
| Battery swap | Plug-in charging focus | CAS swap-compatible |
| Range (loaded duty) | ~200–260 km | ~200–240 km |
| FOB price band | USD 115,000–140,000 | USD 95,000–115,000 |
The price row rewards attention: the KTA1 runs roughly USD 20,000–25,000 cheaper per unit. With payload differing by about 8–10 tonnes, the capital cost per tonne of payload is broadly similar — meaning the choice is genuinely about duty cycle, not value. What differs is what the truck does with its tonnage: the TZ3Z spends it on heavy site robustness, the KTA1 on compactness and swap-compatible energy logistics.
The TZ3Z's working day is the big construction project: earthworks for highways, dam and rail construction, large demolition removal, sand and gravel supply to batching plants. Its heavy rigid suspension and 55 t-class ratings absorb the punishment of loaded hauls over unmade ground; its 400 kWh pack covers the longer site-to-tipper-to-market radius these projects run; and its high-output drive motors keep a full body moving on ramped site accesses. The body itself is the heavy plate specification contractors expect for rock and demolition, and the whole machine is tuned for the reality that construction hauls get rougher, not smoother, as projects progress.
The KTA1's working day is space-constrained: new-capital-city construction (we have placed units on exactly this duty in Southeast Asia), urban redevelopment with lane-width restrictions, inner-city utility trenching spoil removal, and small-to-medium quarries where the loading face is cramped. Its compact wheelbase and tighter turning circle let it work where a full-size 8x4 spends its day three-point-turning; its lighter tare means more legal payload on weight-restricted municipal roads; and its CAS battery-swap compatibility means a mixed KTA1 fleet can run continuous shifts with a single swap station — 5–6 minute pack exchanges replacing 40-minute charges. For operators whose constraint is time and space rather than tonnage, the KTA1 is the correct geometry.
At USD 0.10/kWh and USD 1.20/L diesel, each truck on its natural duty (TZ3Z: 70,000 km/yr heavy construction; KTA1: 55,000 km/yr city cycles; diesel comparators matched in class):
| 8-year total per truck | TZ3Z | Diesel heavy 8x4 | KTA1 | Diesel compact 8x4 |
|---|---|---|---|---|
| Vehicle capex | ~USD 127,000 | ~USD 78,000 | ~USD 105,000 | ~USD 65,000 |
| Energy | ~USD 335,000 | ~USD 890,000 | ~USD 210,000 | ~USD 550,000 |
| Maintenance | ~USD 60,000 | ~USD 135,000 | ~USD 48,000 | ~USD 105,000 |
| Total | ~USD 522,000 | ~USD 1,103,000 | ~USD 363,000 | ~USD 720,000 |
Both EV trucks roughly halve their diesel comparator over eight years — the physics of LFP energy at one-tenth the cost per km-plus of diesel maintenance is uniform across classes. What the table cannot show is the KTA1's swap option converting to 24-hour asset utilisation: a swap-backed KTA1 fleet can deliver 1.5–2x the tonnage per registered vehicle, which is why space-constrained high-throughput operators increasingly standardise on it.
Both trucks carry CATL LFP chemistry (thermal stability at 45 °C+ ambient, 4,500+ cycles), liquid-cooled pack thermal management, regenerative braking that triples brake life on tipper duty, insulated HV monitoring with emergency cut-off, and the same export package: UN 38.3 and IMDG documentation, pre-shipment inspection, commissioning with driver training on regen technique and high-voltage safety, and parts planning support. Both deliver the construction-site bonuses fleet owners report first: no diesel smell and noise at the loading face (69–72 dB(A) pass-by), no engine air filters choking on site dust, and no cold-start drama at dawn.
Choose the TZ3Z when the job is maximum material over demanding construction ground at heavy ratings — USD 115,000–140,000 FOB, CATL 400 kWh, 55 t class. Choose the KTA1 when the job is compact, city-lawful, swap-friendly and throughput-driven — USD 95,000–115,000 FOB, CATL 352 kWh, 31 t GVW. And if your operation spans both worlds, the honest answer is a mixed fleet: the two EV trucks share parts DNA, driver training and exporter support, so the combination costs less to run than two separate brands would. Send us your route map and cycle sheet; we will tell you which philosophy your site actually practices.
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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