Buying a high-pressure homogenizer is a 20-to-40-year decision. The machine you choose determines your product quality, energy bill and maintenance costs for decades. This guide walks through the five questions our engineers ask every customer — so you can shortlist the right homogenizer machine with confidence.
1. What capacity do you actually need?
Capacity (liters per hour) is the first filter. Size the machine on your real production flow — not on peak ambition. A homogenizer running at 30–100% of rated capacity with capacity control is more efficient than an oversized machine idling. The BOS MG series covers the full spectrum:
| Macchina | Capacity | Max pressure | Typical use |
|---|---|---|---|
| MG2 | 40–1,200 l/h | 1,400 bar | Laboratory, R&D, small batches |
| MG3 / MG4 | up to 4,000 l/h | 400–1,400 bar | Pilot & small production |
| MG12 / MG14 | up to 9,600 l/h | 425–1,400 bar | Mid-size production |
| MG18 / MG30 | up to 16,000 l/h | 1,400 bar | Large production lines |
| MG45 | up to 25,000 l/h | 1,400 bar | High-volume processing |
| MG120 / MG124 / MG140 | up to 43,200 l/h | 400–1,400 bar | Industrial scale |
| H-Range (H3/H4/H5) | flexible | 400 bar | Cost-efficient dairy & food |
2. How much pressure does your product need?
Pressure requirements follow from the product, as explained in our article on the principio di funzionamento dell'omogeneizzatore. Dairy typically needs 100–250 bar, sauces and beverages 150–400 bar, pharmaceutical and cosmetic emulsions 400–1,000+ bar. Buying more pressure than you need means paying for energy and wear you never use; buying too little caps your product quality.
3. Hygiene: does it need to be CIP-ready?
For food, dairy and pharma, cleaning-in-place is non-negotiable. Look for a sanitary design with a minimum of parts and seals — fewer parts means faster cleaning validation and lower spare-part costs. Every BOS machine is designed for C.I.P. as standard.
4. What does the machine really cost over 20 years?
The purchase price is a fraction of total cost of ownership. The real drivers are energy consumption per 1,000 liters, wear parts (valves, plungers, seals) and downtime. Ask any supplier for: energy data at your operating point, a recommended spare parts list with prices, and guaranteed parts availability. BOS keeps 15,000+ spare parts on stock — also for APV Gaulin and Rannie machines.
5. Who services the machine — and how fast?
A homogenizer is only as good as the service behind it. Check response times, whether engineers travel worldwide, and whether Programmi di manutenzione preventiva are available. An unplanned stop on a filling line costs more per hour than a year of maintenance.
Shortlist in 30 seconds
- Lab or pilot plant: MG2 — small footprint, full 1,400 bar.
- Growing production: MG12–MG30 — balance of capacity and flexibility.
- High volume: MG45–MG140 — industrial workhorses.
- Budget-conscious dairy/food: Gamma H — proven performance at 400 bar.
Not sure which model fits your line? Contact our engineers for sizing advice based on your product, flow and pressure — free and without obligation. BOS Homogenisers, built in the Netherlands since 1950.