The Fried Twisted Dough Sticks Production Line

The Fried Twisted Dough Sticks Production Line is a fully‑automated, modular industrial solution purpose‑built for mass‑producing uniform, crispy fried twisted dough sticks (traditional Asian cruller snacks). Covering dough feeding, automatic twisting & forming, continuous frying, de‑oiling, cooling and finished‑product output, this integrated line drastically cuts manual labor, stabilizes product quality, and supports scalable manufacturing for food factories, snack plants and large‑scale food processing enterprises. It supports flexible capacity customization to match small‑to‑large‑batch production demands, and complies with international food‑processing hygiene requirements.

Core Material Advantage: Food‑Grade 304 Stainless Steel

Every component that comes into direct contact with dough, hot oil and finished snacks adopts premium SUS304 food‑grade stainless steel, including the tank body, conveying mesh belts, forming molds, material chutes and internal supporting frames.

Food‑Safety Performance

304 stainless steel is non‑toxic and non‑reactive with flour, edible oil and food additives. It will not release harmful heavy‑metal substances even under long‑term high‑temperature frying conditions. Resistant to acid‑base corrosion generated by oil oxidation and food residues, it avoids material contamination risk to final products, fully meeting global food‑contact material standards for food‑grade equipment. Smooth, seamless welded surfaces prevent food debris from hiding in gaps, enabling quick and thorough cleaning after production cycles, effectively reducing bacterial growth and cross‑contamination risks.

Durability & Long‑Term Operating Value

304 stainless steel delivers outstanding anti‑rust and anti‑corrosion performance under persistent high‑temperature, high‑humidity frying‑workshop environments. It resists erosion from hot cooking oil, oil fumes and frequent water washing for sanitation. Compared with carbon‑steel alternatives, it avoids rust flaking and early‑stage structural failure. The rigid steel structure supports long‑hours non‑stop continuous production, lowers component replacement frequency, extends total equipment service life, and reduces your long‑term operational maintenance cost.

This production line is equipped with a professional oil circulation & online filtration module, which is a key upgrade over conventional static‑tank frying devices.

Real‑time residue removal During frying, the circulation pump drives continuous oil flow through precision filter assemblies. Crumb residues generated from fried twisted dough sticks are continuously filtered out from the frying oil. Residues will not stay heated inside the fry tank, which suppresses oil acidification and peroxide value rise, improving food safety of fried outputs.

Consistent oil temperature across the frying zone Dynamic oil circulation homogenizes heat distribution all over the frying bath. It eliminates local over‑heating cold‑spot zones, so every batch of twisted dough sticks gets even frying color, consistent crisp texture and unified finished‑product quality. No partial burnt or under‑cooked goods occur.

Remarkable oil‑cost saving By removing burnt crumbs in real‑time, the circulation system greatly slows down oil deterioration. It extends the usable life of frying oil and cuts down oil‑change frequency, significantly lowering raw‑material operating expenses for mass production.

Simple maintenance workflow The circulation loop features accessible quick‑detach filter units. Operators can complete filter‑core cleaning and residue disposal without full oil drainage of the fry tank, shortening production‑stop downtime for daily upkeep.

Continuous Frying Host Built on the 304 stainless‑steel fry tank, matched with the oil‑circulation system. PLC+PID intelligent temperature control keeps frying temperature stably within the set range (160‑200 °C). Double‑layer mesh‑belt conveying prevents product floating and flipping, ensuring every twisted dough stick stays fully immersed for homogeneous frying. Multiple heating options including electric and gas are available for different factory site conditions.

De‑oiling & Cooling Section Fresh‑fried products go through vibration de‑oiling to remove surface excess oil, then enter the air‑cooling tunnel. Hot finished sticks cool down rapidly, which stabilizes surface crispness and prepares goods for subsequent packaging processes.

Central Control Cabinet Human‑machine touch‑screen interface for unified parameter setting: line speed, frying temperature, circulation‑pump status, forming parameters. Built‑in multi‑safety interlock protection improves operational safety for workshop staff.

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