Silo, Bunker and Feeding Systems for Bulk Solids
Storage is where bulk material problems begin — or are prevented. Pro Makina designs silos, bunkers and hoppers with outlet geometry engineered for your material's flow behaviour, and combines them with feeders and gates that turn stored material into a controlled process stream.
System Components
Storage silos
Cylindrical silos for granular products with level monitoring and venting.
Receiving bunkers
Truck and loader receiving points with grids and robust wear surfaces.
Buffer hoppers
Process buffers above dosing and packing equipment.
Discharge aids
Vibrators, aeration and mechanical dischargers against bridging and ratholing.
Slide gates and valves
Manual and motorised gates for controlled discharge.
Feeding equipment
Screws, belts and rotary valves converting storage into a steady feed.
Flow Behaviour Drives the Design
The same silo that empties cleanly on dry granules can rathole on moist powder. Outlet dimensions, hopper angles and wall material must follow the material's internal friction and cohesion; discharge aids compensate what geometry cannot. Getting this right at design time costs a calculation — getting it wrong costs daily hammer blows and production stops.
We size storage volumes from your logistics (delivery lots, buffer days, batch sizes) and design the discharge from your material data, then integrate gates and feeders so downstream dosing receives a stable flow.
Data Required for Storage System Design
| Design input | Role in the design |
|---|---|
| Material flow properties, moisture | Hopper angles and outlet size |
| Storage volume needed | Silo/bunker dimensions |
| Filling method (truck, conveyor) | Inlet and venting design |
| Downstream feed rate | Gate and feeder selection |
For cohesive materials, flow tests on your sample improve outlet design reliability.
Why Pro Makina
Manufactured in Turkey
Design and fabrication are carried out in our own facility in Eskişehir, Turkey, with full in-house engineering control.
Project-based engineering
Every machine is sized around your raw material, moisture content and capacity target — not sold from a fixed catalogue.
Export experience
We prepare international technical proposals, shipping documentation and commissioning support for overseas projects.
Single point of responsibility
Process design, fabrication, automation and commissioning are managed by one engineering team.
Frequently Asked Questions
How is bridging prevented?
Primarily by correct outlet size and hopper angle for the material; where needed, vibration, aeration or mechanical discharge aids are added. The combination is specified from your material data.
Do you supply silo groups with distribution?
Yes — silo batteries with filling conveyors, distributors and discharge collection are engineered as complete systems including level instrumentation.
Related Machines & Solutions
Share Your Project Details
Send us your raw material, capacity and process data. Our engineering team will review your requirements and prepare a project-specific technical proposal.
Silo, Bunker and Feeding Systems for Bulk Solids
Final dimensions, capacity and drive power are determined per project, based on your raw material analysis, moisture content and process calculations.