The core challenge in dehairing black pigs (or any dark-haired pig) lies in the dark color, thick and tough hair roots, and typically thicker skin. Standard white pig dehairing processes often fail to achieve ideal results, leaving behind a large number of black hair roots, severely affecting product appearance and grade. The melanin in black pig hair causes it to absorb heat differently than white pig hair, and the hair roots are more firmly rooted. Traditional single scalding + dehairing methods easily result in “skin cooked but hair not removed” or a large number of noticeable black spots (hair roots) remaining. Pre-loosening treatment: High-pressure spray loosening machine or scraping and coarse dehairing machine. High-pressure reverse rinsing of the pig carcass with 60-65℃ hot water, possibly equipped with a rotating soft scraper, to loosen and remove some long hair in advance. This reduces the load of subsequent scalding, allowing hot water to penetrate more easily to the thick hair roots. Deep scalding: Special scalding tank for black pigs. • Precise temperature control: Water temperature stabilized at 62-64℃ (possibly slightly higher than white pigs).
• Extended scalding time: Extended to 6-8 minutes (adjusted depending on breed).
• Forced Circulation: Powerful water flow ensures uniform temperature and penetration to every hair root. Thoroughly softening the hair roots is the most crucial step in determining the final hair removal rate (≥99.5%). Powerful Hair Removal – Black Pig Specific Spiral Hair Removal Machine / Dual-Shaft Hair Removal Machine
• Enhanced Power: Main motor power is 20%-30% greater than the standard model.
• Special Hair Removal Fingers: Uses harder, more wear-resistant rubber fingers with a denser arrangement.
• Adjustable Speed and Pressure: Hair removal intensity can be adjusted according to the size and breed of pig. Utilizing high-intensity mechanical friction, the softened black pig hair is removed from the root.