Walnut Deep Processing Production Line

GONGMAO Equipment Manufacturing, founded in 1994, with 32+ experience, specializes in advanced nuts and food processing machinery, particularly complete processing solutions for customers worldwide.

As the nut market continues to upgrade, buyers demand more than basic cleanliness. Non-astringent, tender, clear-colored, intact and long-shelf-life walnut kernels are widely used for premium snacks, gift boxes, prepared foods and global exports. Product profitability relies on advanced finishing and the completeness and cleanliness of shelled walnut kernels.

Most processors still use outdated, fragmented processing setups with only basic peeling and single drying equipment. Without standardized kernel extraction and complete deep processing workflows, production remains low in automation and unstable in quality. Manual shelling and kernel picking cause high breakage rates, shell debris and defective kernels. Subsequent processing often leads to residual astringency, incomplete peeling, uneven moisture and insufficient sterilization. Finished products suffer inconsistent quality and easily absorb moisture, oxidize or breed bacteria in storage, failing high-end retail and export standards. Integrated kernel extraction and deep processing lines have become essential upgrades for modern walnut factories.

Addressing traditional processing pain points such as high kernel breakage, residual impurities, poor flavor, incomplete peeling, insufficient sterilization and unstable quality, this walnut deep processing production line achieves full closed-loop production. It integrates a front-end automatic walnut kernel extraction line, together with fruit washing, cooking, de-enzyming, peeling and multi-layer drying systems. Covering shelling, impurity sorting, curing, sterilization, skin removal and final drying, it delivers full-process integrated refinement and supports standardized mass production of premium walnut kernels.

The front-end kernel extraction unit adopts intelligent graded shelling and flexible picking technology. It automatically adjusts processing force by walnut size, lowering breakage rates and maximizing whole-kernel output. Equipped with multi-stage sorting systems, it thoroughly removes shell residue, debris and shriveled kernels, ensuring clean and intact raw materials for downstream refinement and eliminating the low efficiency and high waste of manual processing.

After extraction and sorting, professional washing equipment removes surface dust and impurities for high-standard pretreatment. The automatic cooking line uses mild curing to eliminate natural astringency and soften texture, solving the bitter, hard taste of traditional walnuts and retaining a pure, sweet flavor.

Built-in air sterilizers displace internal air and eliminate microorganisms, effectively preventing fat oxidation and rancidity to extend shelf life significantly. The flexible physical peeling line removes skin thoroughly without kernel damage, delivering bright, uniform walnut kernels. The rear multi-layer drying line adopts circulating constant-temperature layered drying with no dead zones. It achieves even heating and stable dehydration, avoids surface scorching and internal dampness, and locks optimal moisture and crisp texture.

The fully automatic, seamlessly connected workflow covers kernel extraction, cleaning, curing, sterilization, peeling and drying. It minimizes manual contact and secondary pollution, fully complying with food safety and export standards. Supporting 24-hour continuous operation, it unifies batch completeness, color, taste and moisture, improving overall quality while cutting labor costs and material waste.

High-end walnut competitiveness depends on full-process refined manufacturing. This walnut deep processing production line resolves the shortcomings of rough kernel extraction and incomplete traditional finishing. It enables stable one-stop production of premium additive-free walnut kernels, helping manufacturers capture high-end domestic and export orders and strengthen long-term market competitiveness.