Is 120 t/h the right size for your contract?

A 120 t/h plant typically supplies 600–800 tons of mix in an 8-hour shift. That is the most common size for national and provincial road contracts: big enough for a full paving crew on a two-lane highway, small enough to ship, install and move economically.

Paving-rate math

Work backwards from what the paver will lay:

Step Example: 7 m wide road, 5 cm surface course
Area per km 7,000 m²
Volume per km 350 m³
Tons per km (at about 2.35 t/m³) about 820 t
Daily plant output (120 t/h × 8 h × 75%) about 720 t
Paving per day about 0.9 km

Change the width, thickness or density to your project. If your schedule needs more than the plant’s daily output, either add hours or move up to 160 t/h.

The 120 t/h options

RMX-C120 RMX-B120 RMX-M120 RMX-D120
Type Containerized batch Stationary batch Mobile batch Drum mix
Mixer 1,500 kg/batch 1,500 kg/batch 1,500 kg/batch —
Installed power 305 kW 380 kW 330 kW 200 kW
Foundation Compacted pad Concrete Compacted ground Light
Indicative FOB price $330,000 – $405,000 $280,000 – $360,000 $350,000 – $405,000 $170,000 – $240,000
Best for Highway contracts that move every 1–3 years Long-term plant on one corridor Maintenance and short contracts One base mix, lowest cost

For highway work, most buyers choose the RMX-C120: batch accuracy for surface courses, and the ability to move to the next contract without new foundations.

Trucks and logistics

The plant only produces as fast as trucks take mix away. With 20-ton trucks:

Round trip (load, haul, unload, return) Trucks needed for ~90 t/h actual output
30 minutes about 3–4
60 minutes about 5–6
90 minutes about 7–8

A hot mix storage silo buffers uneven truck arrivals so the plant does not stop each time the queue is empty.

What a 120 t/h site needs

  • Aggregate: roughly 680 tons a day at 720 t of mix; at least three to five days of stockpile
  • Bitumen: about 32–43 tons a day at 4.5–6% binder
  • Fuel (oil-fired batch plant): roughly 4–5 tons a day at 5.5–7 kg/t, more in the wet season
  • Power: 305–380 kW installed for batch models; generator sized above that with starting margin
  • Lab: daily gradation, binder content and Marshall or equivalent tests for the specification

Next steps

See all prices in the price guide and, for an example of a country setup, our Philippines buyer’s guide. Send us your contract quantities and haul distance and we will size the plant and truck fleet with you.