SMP800G Stabilized Soil Mixing Plant — 800 t/h Continuous Mixing

The SMP800G is a stabilized soil mixing plant — a different machine from a concrete batching plant, built to produce stabilized base course material for roads, highways, airports and rail subgrades at 800 t/h. It runs a continuous mixing process rather than batch-by-batch cycles: aggregate flows from five 15 m³ bins through VFD-controlled discharge gates, joins metered streams of cement (or lime) and water, and passes through a continuous mixing unit driven by a 110 kW motor into a 12 m³ finished-product hopper that feeds dump trucks running below. There is no batch cycle to wait for — material moves through the plant continuously while the mix proportions are held by component-level metering.

That continuous, high-throughput design is what makes the SMP800G the natural plant for cement-treated base (CTB), lime-stabilized soil and other road-base mixes used to build pavement subbase and base layers under highways, expressways and airfields. Because stabilized soil uses a low binder content (a few per cent cement or lime by weight) and is laid on a paver rather than poured, the plant is engineered very differently from a concrete batching plant — wider aggregate bins, no twin-shaft mixer, VFD-driven continuous gradation control, and a finished-product hopper sized to load trucks one after another without interruption. The plant is built and tested at the TRUEMAX factory in Haining to ISO 9001:2015 and CE standards, supplied with the same complete after-sales programme — three-minute response, 24-hour solutions, remote intelligent service — as the rest of the line.

1. 800 t/h continuous mixing — Output is measured in tonnes per hour, not cubic metres — and at 800 t/h the SMP800G feeds a road-base laying operation continuously, with no batch cycle to interrupt supply.

2. VFD-controlled aggregate discharge — Variable-frequency drives regulate the discharge speed at each aggregate bin, so the gradation entering the mixer is held by adjusting motor speed in real time — the heart of continuous-mix control.

3. Five-bin, five-aggregate batcher (15 m³ × 5) — Five 15 m³ aggregate bins handle five aggregate types, enough for the multi-fraction gradations used in modern stabilized base mixes (different stone sizes, sand fractions and recycled material).

4. Continuous mixing unit, 110 kW — A continuous mixing chamber with a 110 kW drive replaces the twin-shaft compulsory mixer used on concrete plants — designed for the lower binder content and the through-flow operation of stabilized soil rather than for batch concrete.

5. Component-level weighing accuracy — Cement and water are metered to ±1% (per each component unit), aggregate to ±2% — the binder content of a stabilized base depends on holding these tight, since the mix often contains only 3–6% cement by weight.

6. 12 m³ finished-product hopper — A 12 m³ surge hopper above the truck-loading area buffers the continuous output, so dump trucks can swap in and out without stopping the plant — important for keeping the laying paver fed.

7. Handles cement, lime and water — Works with cement-treated, lime-treated and combination stabilized-soil mixes; binder type is selected at silo and metering rather than changing the mixer.

8. 177 kW total plant power and full TRUEMAX service — 177 kW for the main plant (excluding silos and screws), plus pre-sale tailored configuration, on-site commissioning and operator training, three-minute service response and 24-hour solutions, with a remote intelligent service and self-diagnosis system supporting the plant in service.