Owning an asphalt plant pays when your yearly tonnage is high enough that your own cost per ton drops below what you pay for delivered mix. The method below finds that point with your own numbers.
Step 1 — The delivered price of bought mix
| Item | Your figure |
|---|---|
| Supplier price per ton at the plant | |
| Haul cost per ton to your sites | |
| Delivered price per ton (P) |
If no supplier can deliver within your specification’s temperature limits, owning a plant may be the only option.
Step 2 — Your fixed costs per year (F)
| Item | Notes |
|---|---|
| Plant cost per year | Purchase price spread over its useful life, or annual financing payments |
| Site | Rent or land cost, site works spread over years |
| Permits and insurance | Annual |
| Core staff | Plant manager, operator, maintenance, lab — paid whether you produce or not |
| Fixed maintenance | Annual inspections, overhauls |
| Moving the plant | If it moves each year |
Step 3 — Your variable cost per ton (V)
| Item | Notes |
|---|---|
| Aggregate | Delivered to your stockpiles, per ton of mix |
| Bitumen | Binder content × bitumen price |
| Fuel | Burner fuel per ton (higher in wet weather) |
| Power | Grid or generator fuel per ton |
| Wear parts | Liners, paddles, bags, belts per ton |
| Shift labor | Per ton at your output |
Step 4 — The break-even
your cost per ton = F ÷ tons per year + V
break-even tons per year = F ÷ (P − V)If your expected tons per year exceed the break-even, owning costs less than buying.
Example with illustrative numbers (not market prices — use your own):
| Input | Example |
|---|---|
| Delivered price of bought mix, P | 70 per ton |
| Variable cost per ton, V | 52 per ton |
| Fixed costs per year, F | 180,000 |
| Break-even | 180,000 ÷ (70 − 52) = 10,000 t/year |
At 30,000 t a year, your cost per ton would be 180,000 ÷ 30,000 + 52 = 58 — a saving of 12 per ton.
Reasons beyond cost
| Reason | Why it matters |
|---|---|
| Availability | Remote projects may have no supplier within hot-haul distance |
| Schedule control | Your paving does not wait for another company’s priorities |
| Quality control | You control stockpiles, mix design and temperatures |
| Bidding power | Contracts that require a plant on site |
| Extra revenue | Selling surplus mix to others |
| Risk | Plant ownership adds maintenance, staff and utilization risk |
Which plant for a first plant?
- Steady single mix, tight budget: a drum mix plant
- Several contracts in a region: a mobile or containerized batch plant
- Commercial supply: a stationary batch plant with storage
For the full project budget, see asphalt plant project cost. Send us your tonnage and site and we will help you run the numbers.
