YTK105E — 70 t class
YTK120E — 80 t class
Side-by-side specification comparison
Both trucks share the Yutong Rui-Control E electric drive platform, so cab ergonomics, regenerative braking strategy and service approach are consistent across the fleet. The meaningful differences are payload, body size and the battery each carries to hold its cycle. Figures are typical ordering data; the final spec is tuned to your material density and measured haul.
| Parameter | YTK105E | YTK120E |
|---|---|---|
| Rated payload | ~70 tonnes | ~80 tonnes |
| Powertrain | Pure electric, Rui-Control E | Pure electric, Rui-Control E |
| Typical pairing shovel | 10–12 m3 loader / shovel | 12–15 m3 loader / shovel |
| Battery pack | Mid pack for 70 t cycle | Larger pack for 80 t cycle |
| Charging | Fast charge during breaks | Fast charge during breaks; higher peak |
| Strongest application | Mid benches, mixed rock | Wide benches, dense hard rock |
| Purchase price band | Lower of the two | Higher of the two |
The 10-tonne payload step changes fleet math
The YTK105E carries about 70 tonnes per cycle; the YTK120E carries about 80. That is roughly 14 percent more tonnes on every trip. On a wide bench with a shovel that fills both bodies in four to six passes, the YTK120E moves more tonnes per hour and usually wins on cost per tonne: fewer trucks, fewer operators, fewer charging slots for the same daily target.
The catch is that the larger body needs a larger shovel. If your loader is 10 to 12 cubic metres and needs seven or eight passes to fill the 80-tonne truck, the YTK120E spends its cycle waiting to be loaded while the YTK105E cycles cleanly. Match the shovel to the truck before you compare payload, or the 14 percent advantage never materialises.
Battery, charging and the real constraint
Neither truck runs a full shift on one charge like a road EV. They are built around the open-pit cycle: load, haul, dump, return, and top up during driver changeover and meal breaks. The YTK120E's heavier vehicle and higher payload draw more energy per cycle, so it carries a correspondingly larger battery pack. That also means its charger needs higher peak power to top up in the same break window.
Before you size either truck, measure your cycle: one-way haul distance, loaded uphill grade, empty return and local grid supply. Those numbers, not a catalog range, set the charger capacity and battery configuration. If your pit runs 24 hours and cannot spare any charging window, step up to the battery-swap YTK136E rather than forcing a fast-charge truck to queue at the charger.
Which duty cycle fits which truck
Choose the YTK105E when: your benches are medium width; your shovel is 10 to 12 m3; you mine mixed rock at a steady production rate; or you are building a first electric fleet and want lower capital per truck.
Choose the YTK120E when: your benches are wide and hardened; your shovel is 12 to 15 m3; you haul dense iron ore or copper; and your production target needs 80 t every cycle. Above 80 t, the ladder continues with larger electric and battery-swap models.
Five-year TCO: fewer trucks beats cheaper trucks
The YTK105E costs less per unit, but cost per tonne moved decides the bid. If the YTK120E needs four trucks instead of five to hit the same daily tonnage, it saves one cab, one operator shift, one set of tyres and one charging slot per year. That saving typically outweighs the higher purchase price and bigger battery over a five-year contract. The reverse matters just as much: an under-loaded YTK120E on a narrow bench wastes its extra mass every cycle and the YTK105E wins. Run the model with your electricity tariff, operator cost and tyre prices.
| YTK105E (70 t) | YTK120E (80 t) | |
|---|---|---|
| Strengths | Lower capital; agile on medium benches; suits 10–12 m3 shovels | 14% more tonnes per cycle; fewer trucks for the target; strong on dense rock |
| Watch out | Cannot maximise wide benches and large shovels | Needs a 12+ m3 shovel and wide benches or it gets under-loaded |
| Best sites | Coal, lithium, mixed-rock mid pits | Iron ore, copper, high-production hard rock |
Frequently asked questions
What is the real payload gap between the YTK105E and YTK120E?
The YTK105E is a 70-tonne electric truck and the YTK120E an 80-tonne unit, about ten more tonnes or 14 percent more per cycle. Both use the same Rui-Control E platform.
Does the 80-tonne YTK120E need a bigger battery?
Yes. Carrying more payload on a heavier chassis draws more energy per cycle, so the YTK120E carries a larger pack and a higher-peak charger to hold the same break-time top-up.
When does the YTK105E beat the YTK120E?
On narrower benches with a 10 to 12 m3 loader that cannot fill the 80-tonne body in a few passes, the YTK105E cycles faster and costs less per truck. Choose it where the larger truck would be under-loaded.
Which gives lower cost per tonne?
On wide benches with a matched shovel the YTK120E wins through fewer trucks and operators. On a constrained bench the YTK105E wins through more clean cycles. We model both against your tariff and operator cost.
Not sure which electric truck fits your pit?
Send us your daily tonnage target, bench width, shovel bucket size, one-way haul distance, worst ramp grade and available grid supply. We will model both the YTK105E and YTK120E and send spec sheets plus a side-by-side TCO estimate. Compare the smaller YTK90E vs YTK105E, or read the guide on how to choose a mining dump truck.