Mining fleets in Chile's Atacama region are moving away from diesel tippers and adopting the KTA1 electric dump truck because a battery-electric truck turns long, repeated downhill hauls into recovered energy rather than wasted fuel. For copper operations where ore moves from pit to crusher on steep ramps, the daily cycle is dominated by descent, and that is exactly where an electric truck pays back fastest.
The Atacama is the driest non-polar desert on earth, with summer pit-floor temperatures that regularly exceed 35°C and dust loads that challenge every air filter on site. Those same conditions are a gift for a liquid-cooled LFP battery. The CATL LFP pack in the KTA1 runs a liquid cooling loop that holds cell temperature in a safe window during both fast charging and regen-heavy descents, so heat is never the limiting factor on a 20-hour mining day. Low humidity also means corrosion risk from salty air is minimal compared with coastal ports, extending the service life of the chassis and the 8x4 running gear.
Copper mines also operate at altitude on the western cordillera, where thin air robs diesel engines of up to 20% of their rated power. The KTA1's electric motor is unaffected by altitude, so a laden climb at 3,000 m performs identically to sea level. That consistency is a major reason fleet managers in the region now shortlist battery-electric haulers for expansion projects rather than treating them as a pilot curiosity.
The KTA1 is built on an 8x4 chassis with a 350 kWh CATL LFP battery and a 360 kW LvKong motor. Peak torque is available from zero rpm, which matters on graded haul roads where a laden truck must pull away from a standstill on a 6-8% ramp. The battery is rated for 8 years or 4,500 charge cycles, and because mining duty rarely fully discharges the pack, operators routinely see beyond the nominal cycle count before replacement. DC fast charging is supported at 120, 240 or 360 kW, and swap-enabled units can exchange a pack in 5-6 minutes so a truck is never waiting on a charger during a shift change.
| Parameter | KTA1 8x4 Dump |
|---|---|
| Battery capacity | 350 kWh CATL LFP (liquid-cooled) |
| Motor power | 360 kW LvKong |
| Range per charge | 200-250 km mixed haul |
| DC fast charge | 120 / 240 / 360 kW (20-80% in 45-90 min) |
| Battery swap | 5-6 min (swap-enabled units) |
| Warranty | 8 years / 4,500 cycles |
| FOB price | US$90,000 - 120,000 |
On a typical Atacama pit-to-crusher run the loaded truck climbs empty-ish and descends fully laden, so the heaviest leg is the descent. The KTA1's regenerative braking captures that potential energy and returns it to the pack: a 250 m vertical descent on a 7% grade can recover 15-25 kWh per trip depending on load and speed. Over a 12-hour shift with 30-40 haul cycles, that recovered energy offsets a meaningful share of the pack's draw, stretching real-world range well past the quoted 200-250 km on routes with strong negative grade. Old diesel trucks simply dissipate that energy as heat through the retarding brakes.
Dust and heat are the two enemies of any site truck. The KTA1's battery enclosure carries an IP-rated liquid cooling system that keeps cells between 25°C and 40°C even when ambient hits 40°C. Cabin air filtration is upgraded for silica dust, and the motor's sealed design avoids the intake choking that downsizes diesel output over a season. Because there is no combustion engine, there is no radiator to clog with fines, and daily wash-down is simpler and faster. Operators report that the truck loses no power at the end of a hot shift, unlike turbo-diesels that suffer heat soak.
Diesel tippers at a remote Chilean mine burn 30-50 litres per 100 km of laden haul and carry fuel, DEF and filter costs that compound with distance from supply. The KTA1 replaces that with grid or on-site solar charging at a fraction of the energy cost per tonne-km. At an FOB of US$90,000-120,000 the capital premium over a comparable diesel 8x4 is recovered through fuel savings, reduced maintenance (no oil, few friction brakes) and lower carbon levies as Chile tightens mine emissions rules. Our Chile electric truck market guide details incentive and grid scenarios by region.
A typical single-pit copper operation running two shifts needs roughly one KTA1 per 25,000-35,000 tonnes of monthly moved ore, assuming a 6-10 km round-trip haul. Planners should budget a 360 kW charger for every two trucks and keep one spare pack for every three swap-enabled units. Because the truck charges in 45-90 minutes from 20-80%, mid-shift top-ups during loader downtime keep utilization above 90%. Unlike diesel, there is no refuelling queue and no fuel theft to police, which simplifies site logistics for remote camps.
The KTA1 removes engine oil, fuel filters, DPF regeneration and exhaust aftertreatment from the maintenance plan. Brake wear is minimal because regen does most of the slowing on descent, so friction pads last several times longer. The main scheduled items are tyre rotation, coolant checks on the thermal loop, and annual battery health inspections. Mining maintenance leads consistently report a 40-60% drop in scheduled labour hours per truck after switching from diesel tippers to the KTA1 platform.
The KTA1 accepts standard 18-22 m³ rock bodies and can be specified with liner packages for abrasive copper ore. Tyre choices run from standard radial to heat-resistant compounds for long descent braking. Gross vehicle weight is matched to the 8x4 axle group so that the 360 kW motor holds grade without overheating. Operators swapping from a 30-tonne diesel tipper will find payload parity with a modest range trade, which is recovered through regen on the return descent.
Most Atacama operators pair the KTA1 with a 360 kW DC charger fed from a solar-plus-storage microgrid, charging during the day and topping up on night shifts. Where grid connection is weak, on-site photovoltaic arrays and containerized storage deliver the 350 kWh needed per truck without diesel gensets. Swap-enabled fleets keep one spare pack per three trucks, so a swap at shift change takes under six minutes and the depleted pack charges off-peak. This avoids the capital cost of oversized charger banks.
Battery-electric site trucks change the risk profile rather than remove it. The KTA1's low centre of gravity improves stability on graded roads, and the absence of diesel exhaust removes a known carcinogen from the pit. Operators need brief training on high-voltage isolation and emergency response, but day-to-day driving is simpler with single-pedal regen control. As Chile's environmental authorities tighten mine emissions, the KTA1 positions operators ahead of future compliance rather than scrambling to retrofit diesels.
For copper mines where the daily pattern is climb-empty and descend-laden, the KTA1 electric dump truck converts the descent into range instead of cost. Combined with an 8-year battery warranty and CATL LFP chemistry built for heat, it is a practical first step toward a zero-emission pit. Fleets comparing platforms can also review the TZ3Z electric dump truck for 6x4 duties at a lower capital point, and the broader model range is covered in our Chile electric truck market guide.
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