Continuous Onion Peeling Machine

A continuous onion peeling machine is an industrial chain-type onion peeler built for medium and large-scale onion processing. It moves onions through a chain conveyor while compressed air loosens and removes the outer skin. Output ranges from 200 kg/h to 1000 kg/h, depending on the model. The machine handles both large and small onions. However, the size gap within one batch should stay within 5 cm. A bigger difference reduces peeling quality and increases clove damage.

Compared with small-batch peelers, this industrial onion peeler runs continuously. That means steady feeding, stable output, and easy connection to sorting, washing, and packing equipment. The frame uses SUS304 stainless steel, which resists corrosion and washes down quickly after each shift. Voltage options cover 110V, 220V, and 380V, so the unit ships to most countries without major electrical changes.

The peeling system uses dry pneumatic pressure, not water. Dry peeling keeps the onion surface dry, prevents mold, and preserves natural color and flavor. This is important for export processors and frozen food suppliers who need clean, intact peeled onions.

Shuliy Machinery designs and builds onion processing equipment with over 20 years of field experience. Each machine leaves the factory tested, and our team provides installation guidance, spare parts, and lifetime technical support.

技术参数

All four models share the same chain conveyor frame. The SL-600 and SL-1000 add rotating peeling rollers, which improve results on larger onions. The SL-200 and SL-400 use fixed rollers, making them cost-effective for smaller volumes.

Onion vs Garlic Chain-Type Peeling Machine

The garlic and onion machines look similar, but they are not identical. Onion skin is thinner and more fragile than garlic skin. Onions also vary more in diameter. These differences require mechanical adjustments.

1. Roller Movement

On the chain-type garlic peeling machine, the rollers do not rotate. Garlic cloves are smaller and more uniform. Fixed rollers give enough friction without crushing the cloves.

On the chain-type onion peeler, models SL-600 and above use rotating rollers. Larger onions need extra rotation to peel evenly across the full surface. The rotation also helps release skins that wrap around the onion body.

2. Size Tolerance

Garlic cloves usually enter the machine after separation, so their size range is narrow.

Onions arrive whole. A batch may mix large and small bulbs. For the automatic onion peeling machine to work well, the diameter difference in one feeding batch must stay below 5 cm. Larger gaps cause small onions to slip through under-peeled and large onions to take damage.

3. Peeling Chamber Airflow

Onion peeling needs gentler airflow than garlic peeling. The nozzles and chamber geometry on the onion version are tuned for thin, papery skins. This reduces broken rings and keeps the onion shape intact.

What Are the Main Functions and Features of the Continuous Onion Peeling Machine?

What Types of Onions Can the Industrial Onion Peeling Machine Process?

The continuous onion peeling machine suits the following operations:

• Onion processing factories
• Frozen vegetable producers
• Dehydrated onion and onion powder plants
• Seasoning manufacturers
• Export-oriented preprocessing facilities
• Central kitchens and ready-meal factories

It handles yellow onions, red onions, and white onions. Varieties with thin, flaky skins respond best to the dry pneumatic system.

What Are the Key Advantages of a Chain-Type Onion Peeling Machine?

1. High throughput — Up to 1000 kg/h for industrial lines.
2. Low damage rate — Gentle airflow and tuned rollers keep onion rings whole.
3. No water usage — Reduces waste treatment and microbial risk.
4. Easy cleaning — SUS304 stainless steel frame and open design.
5. Simple integration — Fits into automated onion processing lines with elevators, graders, and packers.
6. Flexible voltage — Ships worldwide with minimal electrical changes.

How Does a Continuous Onion Peeling Machine Work?

这 automatic onion peeling machine works in three stages:

1. 喂料： Whole onions enter the chain conveyor. The chain moves them forward at a controlled speed.
2. Peeling: Compressed air jets loosen the dry outer skin. Rotating rollers on larger models add gentle friction to complete the peel.
3. Separation and discharge: Skins exit through a dedicated outlet. Peeled onions fall onto the discharge conveyor or collection bin.

The full cycle is water-free, fast, and repeatable.

Common Customer Pain Points and Solutions

How Is the Continuous Onion Peeling Machine Used in Commercial Onion Processing?

A frozen vegetable processor in Southeast Asia needed to peel 600 kg of onions per hour for diced onion production. Before automation, workers peeled by hand, which caused inconsistent yields and slow output.

The facility installed an SL-600 continuous onion peeling machine. With rotating rollers and 0.8 MPa air pressure, the line reached the target throughput. Onion damage dropped, and the water-free process simplified waste handling. After setup, the client reported stable output and lower labor costs during peak season.

Why Choose Shuliy for Your Industrial Onion Peeling Equipment?

• 20+ years of experience in vegetable processing machinery
• ISO, CE, SGS, and TUV certifications
• 1年保修 on core components
• 终身技术支持
• Multilingual service team for installation and troubleshooting
• Spare parts stocked for fast delivery

常见问题解答

Get a Quote

If you need an industrial onion peeler for your processing line, contact Shuliy Machinery today. Tell us your target output, onion variety, and voltage. We will recommend the right model and send a detailed quotation.

Related Equipment – Onion Powder Production Line

This modular integrated onion powder processing assembly delivers finished output of 100‑500 kg/h, with a full‑process workflow covering root cutting, peeling, slicing, hot‑air drying, fine grinding and automatic packaging. All material‑contact components adopt SUS304 food‑grade stainless steel. The slicing thickness is adjustable from 1‑5 mm; finished powder fineness ranges from 20‑120 mesh, with commercial‑grade 60‑120 mesh as the mainstream option. The box‑type drying chamber supports electric, heat‑pump and coal multi‑heat‑source matching, drying cycle lasts 4‑8 hours. Besides red, yellow and white fresh onions, this line can also adapt to garlic and other spice raw materials to produce dehydrated flakes, granules and seasoning powder. Equipped with a dry‑type pneumatic peeling unit, an adjustable‑speed slicer, a universal grinder and auger‑type automatic packing machine, it produces stable‑quality dehydrated spice products for seasoning factories, dehydrated vegetable processors and food‑ingredient export enterprises.

核心优势

• Wide Raw‑Material Compatibility: Works for multiple varieties of fresh onions; can be re‑configured to process garlic, ginger and other spices for powder, flake and granule production.
• Modular Continuous Workflow: Interconnected individual units realize one‑stop processing from raw bulbs to sealed finished bags; only 2‑4 operators for monitoring, greatly cutting manual labor costs.
• Adjustable Powder Fineness: Replaceable screen sieves of the grinding machine freely switch between 20‑120 mesh fineness, meeting diverse market requirements for coarse and fine spice powder.
• Multiple Drying Heat‑Source Options: Electric, air‑source heat pump and coal heating are optional, matching local fuel prices and factory environmental‑protection regulations.
• Dry‑Peeling Low‑Loss Design: Pneumatic dry peeling achieves a 95- 98% peeling rate without extra water intake, reducing later‑stage drying load and lowering overall energy consumption.
• Sanitary Easy‑to‑Maintain Construction: Seamless 304 stainless‑steel structure without sanitary dead corners; key dismountable parts allow quick washing to satisfy international food‑hygiene standards.
• Complete Customization & After‑Sales Service: 12‑month full‑machine warranty with online debugging and on‑site operation training; hourly capacity, line layout, voltage and packaging specifications support personalized customization.