Author: Alex Song Publish Time: 2026-08-23 Origin: Site
A custom FLU400 preduster — configured with Schneider electric components and ABB motors for the US market — has been shipped to an American shrimp processing facility. The machine applies a uniform flour primer to peeled shrimp before battering, with an integrated vibrating conveyor that aligns the shrimp in neat rows for downstream processing, plus a dust collection system that keeps the production floor powder-free.
The American client processes peeled shrimp for retail and food service — breaded shrimp being a core product line. Their coating line had two persistent problems:
Inconsistent flour adhesion — shrimp is slippery and irregularly shaped. Without a proper flour primer, the wet batter beads up and slides off during frying, producing bare patches on the finished product.
Factory dust — flour dust from the coating process settled on the floor and equipment, creating a hygiene risk and an unpleasant working environment.
The FLU400 preduster solved both: uniform dry flour priming for the shrimp, and an integrated dust collection device that captures airborne flour at the source.
Component | Standard | This Custom Build |
|---|---|---|
Electrical components | Standard industrial | Schneider Electric — US-serviced brand, local parts availability |
Motors | Standard | ABB — global brand with US service network |
Power supply | 380V/50Hz | 220V/60Hz — native US 3-phase, no transformer |
Downstream | Standard discharge | Vibrating conveyor — aligns shrimp in neat rows |
Dust control | Optional | Integrated dust collection device |
The client specified Schneider Electric and ABB components deliberately: both brands have established US distribution and service networks, meaning spare parts and technical support are available locally without international shipping delays.
Parameter | Specification |
|---|---|
Model | FLU400 (custom) |
Belt Width | 400 mm |
Belt Speed | 3-15 m/min (variable) |
Electrical | Schneider Electric components |
Motors | ABB |
Power Supply | 480V/60Hz/3-phase (US) |
Flour System | Circulation + recycling screen |
Dust Collection | Integrated device |
Downstream | Vibrating conveyor for shrimp alignment |
Material | Full SUS304 |
Shrimp presents a unique coating challenge: a wet, slippery surface that resists batter adhesion. The coating sequence for breaded shrimp is:
Shrimp → PREDUSTER (flour primer) → Batter → Breading → Fryer The flour primer from the FLU400 does three things:
Dries the surface — flour absorbs surface moisture, creating a grip layer for the batter
Prevents batter beading — without predust, batter forms beads that slide off in the fryer
Improves coating yield — uniform primer means less batter waste and consistent product weight
The result: breaded shrimp with complete, even coating that survives frying without bare patches.
Standard predusters discharge product randomly onto the next belt. For shrimp, this creates a problem: tangled, overlapping shrimp that coat unevenly and fry inconsistently.
The custom vibrating conveyor solves this — it aligns each shrimp lengthwise in neat rows as they transfer to the batter applicator. Even spacing means:
Even coating — each shrimp contacts batter and crumb identically
Higher yield — fewer clumped shrimp rejected at inspection
Cleaner line flow — no tangling at the batter applicator infeed
Flour dust is an invisible cost in every coating line — it contaminates product, coats equipment, creates slip hazards, and triggers hygiene audit findings. The FLU400's integrated dust collection device captures airborne flour at the source:
Source extraction — dust is drawn off at the flour hopper and circulation point, before it spreads
Clean working environment — production floor stays powder-free, improving worker comfort and audit readiness
Flour recovery — captured dust returns to the circulation system, reducing flour waste
The same FLU400 platform handles a range of coated products:
Product | Flour Type | Notes |
|---|---|---|
Shrimp (peeled) | Wheat flour | Custom vibrating conveyor alignment |
Fish fillets | Corn/wheat blend | Lighter coat for delicate fish |
Chicken tenders | Wheat flour | Standard predust profile |
Calamari / squid rings | Rice flour | Gentle handling at low belt speed |
Vegetable fritters | Rice flour | Sticky batter needs firmer primer |
Mozzarella sticks | Wheat flour | Uniform primer for batter adhesion |
Looking for a preduster configured for your product and grid voltage? TINDO custom-builds machines with the components and configurations your market requires — contact our engineering team.
info@tindotech.com | WhatsApp: +86 185 6009 1508 | www.tindotech.com