Samosas & Kebabs Frying: Gas Continuous Fryer Process Line Delivered to Australia

Recently, our Australian customer received their ordered gas continuous fryer. This production line is used to fry samosas and kebabs, with an output capacity of 200–400 kg per hour. The machine has been designed with dimensions of 6,500 × 600 mm to meet their production requirements. Additionally, to ensure seamless integration with their existing equipment, we supplied it with two auxiliary machines: a 1.5-meter mesh belt conveyor for feeding and a 5.3-meter air cooler for cooling.

Compared to traditional gas heating methods that often require delete some functions, we utilize a more advanced solution—an external thermal oil furnace as the heat source. This design not only preserves all the essential functions of the fryer but also offers greater durability and reliability. Customers prefer gas heating for several reasons: firstly, due to the high output demand and larger machine size, electric heating would incur higher operational costs. Over the long term, gas heating provides lower costs and better cost performance. Secondly, using an external thermal oil furnace enhances safety by reducing risks associated with direct gas contact.

A gas fryer consists of two main components: the thermal oil furnace for heating and the main frying body. Next, let’s explore the features of this high-end gas continuous fryer.

Ⅰ. Thermal Oil Furnace

1. Thermal Oil Furnace Tank  

In the gas continuous fryer, the frying oil is heated indirectly through a thermal oil system. The thermal oil is contained within the oil tank, where it is heated by the gas burner. Once heated, the thermal oil circulates continuously, transferring heat to the frying oil. This independent thermal oil system is designed for reusability, allowing the oil to circulate and be reused constantly, which helps minimize heat loss and improve energy efficiency.

2. Control Cabinet  

The thermal oil furnace operates within a temperature range of 300 to 350 degrees Celsius. The control panel allows precise regulation of the thermal oil outlet and return temperatures. Typically, the temperature of the thermal oil furnace is maintained higher than the frying temperature; for example, if the frying temperature is set to 220°C, the thermal oil furnace is adjusted to approximately 300°C.

Additionally, we utilize high-quality, reputable electrical components for the thermal oil system. The internal wiring and circuits are neatly organized and easy to understand. The heating system primarily employs electrical parts from trusted brands such as Siemens, Dongs, and Danfoss.

The entire control system is based on Siemens technology, including the PLC controller, touch screen, and inverter. It features an integrated English interface, making operation straightforward and user-friendly for customers.

3. Three-Way Pneumatic Proportional Valve  

The three-way proportional valve connects to the gas continuous fryer 316 stainless steel pipe on one end, with the other two ends linking to the thermal oil inlet and outlet pipes of the thermal oil furnace. This valve regulates the opening and closing of the thermal oil flow, ensuring continuous circulation. The pneumatic three-way proportional valve automatically adjusts its opening based on the temperature, controlling the flow of thermal oil accordingly. When preheating, the valve opens fully to maximize heat transfer; as the temperature approaches the set point, the opening gradually reduces. Once the desired temperature is reached, the valve closes to maintain thermal stability. During operation, the valve continuously modulates to form an internal circulation loop within the thermal oil furnace tank, ensuring consistent and efficient heating of the edible oil.

Ⅱ. Continuous Fryer

1. Double Mesh Belt  

The gas continuous fryer features an upper and lower double mesh belt conveyor system. The food is securely sandwiched between the two belts, ensuring uniform frying and preventing the food from floating upward. Users can adjust the conveyor belt speed to control frying time and output capacity according to production needs.

The double belt design adopts a split structure with independently adjustable upper and lower mesh belts; the upper belt can be raised or lowered to accommodate products of varying heights. The input end utilizes a conveyor belt made of polytetrafluoroethylene (PTFE), which offers excellent chemical stability, corrosion resistance, high lubrication, and non-stick properties. This prevents food from adhering to the mesh during frying. Additionally, the PTFE material exhibits excellent anti-aging performance, significantly extending the service life of the mesh belt.

2. 316 Stainless Steel Heat Transfer Oil Pipe  

The heated thermal oil is transported to the gas continuous fryer’s heat transfer pipes via a pipeline, where heat is conducted to warm the frying oil. Ensuring the pipeline is of high quality with excellent heat conduction is essential for efficient and reliable operation. To guarantee long-term durability and safety, and to prevent risks such as scalding or oil leakage caused by pipeline damage at high temperatures, we use 316 stainless steel for the heat transfer oil pipes. This material offers superior strength, high temperature resistance, excellent corrosion resistance, and good thermal conductivity, ensuring safe and efficient heat transfer over extended service life.

3. Longitudinal Scraping Function  

The gas continuous fryer is equipped with a longitudinal scraping system combined with an oil filtration system. The scraping mechanism removes residues from the frying oil, significantly reducing contamination and maintaining oil quality. The collected residues are automatically pushed forward into a designated collection container. The oil filtration system is pressurized by an oil pump and employs a 150-200 mesh filter to effectively trap fine particles, thereby reducing harmful substances in the frying oil. This process extends the oil’s service life, improves frying efficiency, and results in cost savings by decreasing the frequency of oil replacement.

4. Lifting Function  

The gas continuous fryer is equipped with a lifting system controlled by a switch located on the support column. During operation, the mesh belt and exhaust hood are first fixed together. When the lift button is pressed and held, the mesh belt and exhaust hood rise slowly and automatically stop once the preset limit is reached. Pressing the lower button initiates a controlled descent until the limit is reached. Additionally, the exhaust hood can be raised independently or simultaneously with the mesh belt bracket and heating tube, facilitating easy cleaning. A safety bar ensures that the mesh belt bracket remains securely elevated at the highest position, preventing accidental lowering and enhancing operational safety.

5. M-Rasied Mesh Belt  

The customer uses a gas continuous fryer to cook samosas and kebabs. To ensure smooth transportation of the products during frying, we have equipped the system with an M-Rasied mesh belt. This design guarantees that the products move steadily forward during processing, preventing static or sinking to the bottom. The longitudinal distance between the two M-Raised on the belt is 23 cm; however, this spacing can be customized based on specific product requirements. Additionally, the M-convexity height is only 1 cm, ensuring it does not interfere with the operation of the re-pressing belt or affect product quality.

6. Control Panel  

The gas continuous fryer features an English-language control panel that provides comprehensive control over all machine operations. This advanced system allows precise adjustment of parameters such as frying time, temperature, and mesh belt transmission speed. It also enables manual control of functions including the slag scraping system, circulation system, smoke exhaust system, and filtration system via dedicated buttons. The control panel is equipped with a 4~20 mA stable output thermostat, which can be connected to a pneumatic three-way proportional valve to maintain a consistent oil temperature, ensuring optimal frying results.

Ⅲ. Free Customized Drawing Provided  

In response to customer inquiries, we offer detailed drawing designs tailored to specific requirements. For the Australian customer who placed this order, space and budget limitations were considered. To optimize the available space, the design allows fried products to fall directly onto a vertically positioned cooling belt conveyor from the gas continuous fryer. Compared to the traditional layout of curved machine—straight belt machine—curved machine, this customized design makes full use of existing space and helps reduce costs, providing an efficient and practical solution.

Ⅳ. Accessories  

The gas continuous fryer is furnished with a comprehensive range of accessories designed: 1 heating tube, 10 pcs PTFE shaping belt, 4 205 diamond bearing seat, 3 pcs oil filter, 10 electric control box buttons and switches, 10 circulation pipeline PTFE gasket, 10 quick release buckle, 2m mesh belt for air cooling machine, 2m mesh belt for belt conveyor.  In addition, the customer also customize the 1 1.5Kw AOLAN circulating pump, 1 2.2Kw high temperature gear pump, 10 pcs PTFE shaping belt, 1 Type B mesh belt motor, 1 styling plate with motor, 1 lifting motor

Below is a detailed diagram of the included accessories:

V. Loading and Fixing  

The gas continuous fryer and its supporting equipment are transported in a 40-foot container. During loading, the equipment is securely fixed with iron wires to prevent displacement and ensure the machine remains intact during transit.

In summary, our Australian customer’s recent acquisition of the advanced gas continuous fryer exemplifies our commitment to providing tailored, reliable, and efficient frying solutions. Designed with flexibility and safety in mind, this production line seamlessly integrates high-quality components and customized features to meet specific operational needs while optimizing space and cost. We are dedicated to supporting our clients throughout the entire process, from design and customization to delivery and installation. If you’re seeking a durable, energy-efficient frying system that can be adapted to your unique production requirements, contact us today to discuss how we can help elevate your food processing capabilities.