
FQFD Purifier
Purifies and grades middlings, semolina and meal after sifting and before further reduction milling.
- Model-by-model specifications
- Model specifications available
- Check the existing line layout
- Confirm interfaces before ordering
FQFD specifications
| Model | Coarse stock (kg/h) | Fine stock (kg/h) | Motor (kW) | Air volume (m³/min)* | Weight (kg) | L × W × H (mm) |
|---|---|---|---|---|---|---|
| FQFD49×2×3 | 1,200–2,600 | 800–1,600 | 0.18 (0.25) × 2 | 40–70 | 970 | 2700×1290×1700 |
| FQFD59×2×3 | On request | On request | 0.25 × 2 | 50–80 | 1100 | 2700×1500×1800 |
FQFD-A configurations
The A-series has two sieve bodies and three sieve layers. These models are listed separately from the 49/59 series above; choose the stock size and air supply together. Coarse-stock resistance: 25–35 mmH₂O; fine-stock resistance: 10–20 mmH₂O. Adjustable amplitude: 0–9 mm; vibration frequency: 9.6 s⁻¹.
| Model | Coarse stock (kg/h) | Fine stock (kg/h) | Air volume (m³/min) | Motor (kW) | Weight (kg) | L × W × H (mm) |
|---|---|---|---|---|---|---|
| FQFD49×2×3A | 1400–2800 | 600–1400 | 40–70 | 2×0.25 | 1020 | 2700×1290×1750 |
| FQFD60×2×3A | 1680–3370 | 720–1680 | 50–85 | 2×0.25 | 1220 | 2750×1490×1850 |
Select the model by material, throughput and installation requirements.
Start with the duty in your flow sheet
Send stock type, feed rate and the intended flour or semolina grade. FQFD49 reference throughput is 1,200–2,600 kg/h for coarse stock and 800–1,600 kg/h for fine stock.
Send your duty and modelTechnical features
Purification stage
The purifier separates and grades stock between sifting and reduction.
Two model sizes
The table lists FQFD49×2×3 and FQFD59×2×3.
Different envelopes
Compare overall dimensions for the space available.
Air duty to confirm
Check the installation before choosing
Send the existing layout and nameplate with your enquiry.
Space & support
Use the model dimensions above.
Power supply
Tell us the site voltage and frequency.
Product connections
Send inlet and outlet locations.
Air system
Check the existing aspiration system.
Identify the machine before ordering parts
Send sieve dimensions, mesh and photos of the existing machine.
Position in the process
Indicative process position; confirm the routing against your flow sheet.
Questions about the FQFD
What warranty do I get?
3 years on the machine. Wear parts, including roll surfaces, belts, scrapers, brushes, screens and filter bags, are excluded.
What information is needed to choose a model?
Send stock type, feed rate and the intended flour or semolina grade. FQFD49 reference throughput is 1,200–2,600 kg/h for coarse stock and 800–1,600 kg/h for fine stock.
Can it replace my existing machine?
Send the nameplate, photographs and layout.
Where do the specifications come from?
Select the model by material, throughput and installation requirements.
Enquire about the FQFD
Choose a model and add your duty, country and contact details.
Farivo engineering team
Send the model, your capacity and country. We reply on WhatsApp or email.
Aspiration connections and operating adjustments

Aspiration routing and maintenance access
The installed configuration shows the aspiration ducts, flexible discharge connections and side tray handles. Allow service space beside the trays and at the duct connections.

Reach the individual air adjustments
This close view, taken from the installation photograph, shows the row of air-adjustment knobs above the inspection panels. Operators can reach the controls while observing the adjacent separation zones.

Differential-pressure monitoring option
A different purifier configuration shows a differential-pressure gauge connected by a measuring hose. It provides a local indication for checking aspiration conditions; the photograph does not specify an operating setpoint.