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Industrial Pig Washing, Scalding & Dehairing Systems

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Washing, Scalding & Dehairing

After bleeding, the pig must be thoroughly cleaned — removing hair, dirt, and remaining debris — before proceeding to evisceration. This stage combines washing, scalding (to soften hair follicles), mechanical dehairing, and flame singeing for a completely clean carcass.

Washing, Scalding & Dehairing

Why This Stage Matters

· Food Safety: Clean carcass surface is essential before evisceration and inspection

· Appearance: Hair-free, singed carcass meets market quality standards

· Downstream Quality: Residual hair in the final product is a major quality failure

· HACCP: Clean carcass reduces microbial load entering the chilling stage


Equipment Summary

Code

Equipment

Key Role

E05

Pig Washing Machine

Pre-scald surface wash, removes loose dirt

E06

Pig Scalding Tank

Submerges pig in hot water (60-65°C) to soften hair

E07

Spiral Dehairing Machine

High-speed rubber fingers, 95%+ hair removal

E08

Hair Singeing Furnace

Flame burns off remaining fine hairs

 

Process Flow

Bleeding Complete → Pig Washing Machine (pre-scald wash)

Pig Scalding Tank (60-65°C, 4-6 min) → Follicles loosened

Spiral Dehairing Machine (95%+ hair removal)

Hair Singeing Furnace (flame singe, final clean)

Transfer to Evisceration


Selection Guide

Factor

Small-Scale

Standard

Large-Scale

Capacity

50-100/hr

200-300/hr

500-1,000/hr

Scalding

Tank immersion

Tank + conveyor

Continuous tunnel

Dehairing

Single machine

Single spiral

Dual spiral


Inquiry

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