For a capacity of about 4 m³/h, you need a continuous biodiesel production plant rather than a batch system, as it ensures stable output and consistent fuel quality at this scale.
In GlobeCore’s range, solutions like the USB biodiesel production units can be configured for this capacity. These systems include heating, mixing, reaction control, and separation stages, allowing full-cycle biodiesel production from vegetable oils or waste oils.
In practice, for this throughput it’s also important to include proper pre-treatment (filtration and moisture removal) and post-treatment (washing or polishing), so a complete line based on USB units with additional oil conditioning equipment would be the most reliable solution.

Another important aspect to consider at ~4 m³/h capacity is how the choice of technology affects process simplification and operating costs, not just output. For example, some modern systems use hydrodynamic cavitation or similar intensification methods, which allow the reaction to occur directly in the flow without multiple stages such as repeated esterification, water washing, or vacuum drying. This significantly reduces both equipment complexity and energy consumption while maintaining fuel quality.
In practical terms, this means that instead of building a large, multi-stage plant, you can achieve the same (or even better) results with a more compact, modular configuration, where capacity can be scaled by adding modules rather than redesigning the entire system. This approach is particularly useful if you are planning to expand production later or work with variable feedstock sources.

It’s also worth noting that continuous systems at this scale are typically designed to handle a wide range of feedstocks — from refined oils to waste cooking oils — without major process changes, which improves operational flexibility and overall economics.
If you’d like to better understand how these modular and continuous biodiesel plants are structured and what technological advantages they offer in real-world operation, I recommend taking a look at this detailed overview: https://globecore.com/renewables-biofuels/biodiesel-plant/.

For a continuous 4 m³/h plant you want a compact, turnkey line that minimizes unit operations and running costs — a single-line transesterification arrangement with inline heating, a reactor, gravity settling, methanol recovery and final purification/filtration delivers exactly that. A plant sized for ~4 m³/h with a 20.8 m³ settling capacity and built-in methanol recovery avoids energy‑ and water‑intensive washing/drying steps, cuts solvent losses and reduces footprint and maintenance compared with traditional multi-stage batch systems. That integrated approach lowers operating costs (less energy, smaller tanks, simpler utilities) while remaining compatible with a wide range of feedstocks from refined vegetable oils to many waste oils, and is designed for standard 380 V three‑phase supply with appropriate explosion protection for solvent handling.

Hydrodynamic cavitation and other process‑intensification technologies are indeed effective at reducing reactor residence time and equipment count and can further simplify plants by enabling reaction-on-the-flow without repeated esterification/washing stages. The described turnkey 4 m³/h line already achieves many of the same practical benefits through online recovery and polishing, but cavitation is a separate technology and would be a customization if you want that level of intensification. If you plan expansion or variable feedstock use, the most common practical path is to use the compact continuous module as your base and scale capacity by adding parallel modules or by discussing a custom intensified reactor with your supplier. If you want, tell me your primary feedstock(s), available footprint and whether you prioritise lowest CAPEX, lowest OPEX or easiest scale‑up, and I’ll outline the best configuration.