Soaking (Tempering) Solutions

Raise kernel moisture by 3–4 percentage points—from ~14% to 18% ±1% (wb)—and hold 10–18 hours so corn softens evenly. The result: faster, deeper steaming, higher flake integrity, fewer fines, and steadier throughput.

Grain Soaking (Tempering) Systems for Corn & Grain Flaking

Grain soaking solutions temper kernels to a uniform moisture profile for consistent conditioning and flaking. Built for feed mills and oilseed plants, they improve flake quality and throughput, enhance gelatinization and flake durability, and reduce energy use—choose a system by capacity and process needs.

Specifications
Photos
Videos

How We Deliver

Agitated Soaking Tanks (Batch)

Stainless tanks with recirculation and agitation for uniform wetting; inline water dosing, optional temperature control, sample ports, and sanitation-friendly internals.

Soaking Process

1.Basic Process

Water Spraying via Screw Conveyor**: After cleaning, corn is lifted to the top layer by a bucket elevator, evenly sprayed with 40–50°C warm water via a screw conveyor, and then stored in a soaking bin for 8–18 hours to allow surface moisture penetration (soaking time depends on corn moisture content).

2. High-Efficiency Process (Optional)

German Ultrasonic Moistening Machine: Uses high-frequency vibration to accelerate water penetration through micro-cracks in the corn endosperm, reducing soaking time to 4–12 hours with an internal-external moisture gradient ≤2%.

Bühler Moistening System


Moisture Applicator

Moisture Applicator + Tempering Bins (Inline):

Moisture Applicator (Intensive Dampener) applies water precisely on the move; tempered in one or more bins for even distribution. Options include NIR moisture sensing, flow metering, and CIP-ready design.

Why It Matters

Consistent 18% moisture drives uniform gelatinization in the Steam Conditioner, improves flake durability, reduces energy per ton, and stabilizes downstream flaking.

Moisture Right. Flakes Right.


PROVIDED EQUIPMENT

Custom-built to your throughput.

Water-Add Screw Conveyor

  • Purpose: Dose and incorporate process water uniformly upstream of tempering.
  • Capacity: 15 TPH (~15 t/h).
  • Materials: 304 Stainless Steel; screw Ø230 mm; shell 3 mm; flight 4 mm.
  • Speed: 85 rpm; center distance ~4.3 m.
  • Drive: SEW motor; chain drive; bolt-fixed.
  • Bearings: SKF.
  • Controls/Power: 24 VDC control; 380 V, 50 Hz.
  • All models can be sized and configured to match your required capacity and layout.


    4-Way Rotary Distributor

  • Purpose: Split corn flow to multiple bins/lines with positive position feedback.
  • Body/Finish: 304 Stainless Steel; painted exterior.
  • Outlets: 4 × Ø200 mm.
  • Speed/Capacity: 2 rpm; 15 TPH (corn).
  • Switch: Limit switch.
  • Gear Motor: Guomao.
  • Bearings: SKF.
  • Controls/Power: 24 VDC control; 380 V, 50 Hz.
  • Soaking Tanks

  • Purpose: Temper/soak kernels for uniform moisture prior to steaming.
  • Type/Volume: Circular silo, 40 m³.
  • Materials: 304 Stainless Steel; plate thickness 3 mm.
  • Controls: Level device, 24 VDC.
  • Water-Retaining Gate

  • Purpose: Hold or release water/grain as required during soaking/transfer.
  • Size: 30 × 40.
  • Materials: 304 Stainless Steel.
  • Switch: Limit switch.
  • Gear Motor: SEW.
  • Bearings: SKF.
  • Controls/Power: 24 VDC control; 380 V, 50 Hz.
  • WAREHOUSE

    Feed & Food—Flaking | Grinding | Rolling | Feed Mills Modern workshops, clean assembly halls, and a welcoming office building—built to deliver reliable equipment and on-time projects.

    CONTACT US

    Connect with BellaEx for flaking and steam-flaking solutions across feed and food industries. Get quotes, technical support, and project consultation from our global team.

    ray@bellaex.com
    +86-13810151555