Food Machinery Casting

What is Food Machinery Castings

Refers to various types of casting parts used in food processing, production, packaging, storage and other related mechanical equipment. They use the casting process to make metal materials into parts with specific shapes and functions. They are used to meet the transmission, sealing and other needs of food machinery during operation.

Food machinery castings are an important part of the food industry. Its material selection and manufacturing process are closely related to the hygiene standards and safety of food production. JC Casting is a professional food machinery casting factory and exporter. It has more than 20 years of casting experience.

Food machinery casting characteristics

1. Material safety

Food machinery castings are in direct or indirect contact with food. The metal materials used must meet food grade standards. They must be non-toxic, corrosion-resistant, not easy to rust, and easy to clean. Avoid contamination of food. For example. Stainless steel castings have the characteristics of strong corrosion resistance, smooth surface and easy cleaning. They are widely used in food machinery.

2. Structural adaptability

The shape is designed according to the specific functions of the food machinery. It may involve complex inner cavities, curved surfaces or connection structures. To adapt to the overall layout and workflow of the machinery. For example. Agitator castings, conveyor trough castings, etc. need to be precisely matched with the movement mode. And material handling requirements of the equipment.

3. Performance stability

Food machinery usually operates under high frequency and long working conditions. Castings must have sufficient strength, hardness and wear resistance. Ensure the stable operation and service life of the equipment. For example. Mold castings in biscuit forming machines. They must withstand repeated pressure shocks without being easily deformed.

Casting process advantages

Compared with other manufacturing processes. Casting has unique advantages in the production of food machinery castings.

1. Stronger molding capability for complex structures

1. One-step molding:  Complex inner cavities and curved surfaces do not need to be spliced. One-step casting molding.
2. Accurate detail replication:  The mold accurately restores the sealing groove. Positioning holes and other fine structures.

2. Higher material utilization. Lower cost

1. Near net material saving:  Castings are close to the finished shape. Less cutting allowance. High material utilization.
2. Low batch mold consumption:  Casting molds are reused. The proportion of mold costs in mass production to each piece is low.

3. The mechanical properties of the overall structure are more balanced

1. Strong impact resistance:  The overall force is balanced. Suitable for high-frequency mixing, pressure filling and other processes.
2. Long fatigue life:  The overall structure has strong resistance to repeated loads. Extend the service life of the equipment.

4. Higher production flexibility

1. Full batch adaptability:  Applicable to both small batch customization and large batch production.
2. Multiple process options:  Sand casting, investment casting and other processes are suitable for different precision and cost requirements.

Common Food Machinery Casting Materials

Material Type	Typical type	Feature	Application	Advantage
Stainless steel	304 stainless steel316 stainless steel	Strong corrosion resistance. Easy to clean the surface. Balanced mechanical properties	Mixer tanks, valves, cutting equipment parts	Meet food contact safety standards. Resistant to acid and alkali corrosion.
Cast iron	Ductile ironGray cast iron	Low cost. Good wear resistance. Excellent shock absorption. Good casting performance	Equipment bases, brackets, large tank heads, grinding parts	Suitable for load-bearing and wear-resistant conditions. Highly economical
Aluminum alloy	Casting aluminum alloy (such as Al-Si series)	Light weight. Good thermal conductivity. Easy to process the surface.	Small mixer paddles, heat dissipation parts, light conveying parts	Reduces the weight of the equipment. Suitable for food cooling/heating.
Copper alloy	Tin bronzeBrass	Good wear resistance. Excellent thermal conductivity.	Bearings, valve cores, food pump impellers	Suitable for high-precision, low-friction rotating parts.

JC Casting’s Casting Process

Sand Casting​

• Production process:  Make wooden or metal molds. Fill with sand to shape. Pour molten metal after assembling the box. After cooling, remove the sand and clean the casting.
• Core advantages:  Use low-cost molding materials such as silica sand and resin sand. Suitable for mass production of heavy parts. ​
• Technical features:  Can cast heavy box parts. Accurate dimensional tolerance control. Surface roughness meets standards. Meet the needs of basic components such as food machinery racks and mixing cylinders.

Precision Investment Casting

• Production process:  Make wax mold. Apply refractory material to make shell. Dewax and then roast. Pour molten metal. After cooling, shell and clean.
• Precision control:  Dimensional tolerance can reach high level. Low surface roughness. Sealing parts can be directly assembled without secondary machining.
• Complex structure realization:  Can form a one-piece press filter frame with fine holes, multi-channel valve body, etc. Eliminate the sanitary dead corners caused by welding. ​​

Die Casting

• Production process:  Molten metal is injected into the die casting machine. It is pressed into the mold cavity under high pressure. After cooling and forming, the mold is opened to remove the casting. Finishing treatment. ​
• Production efficiency:  Equipped with advanced die casting machines of different specifications. Single mold production cycle is short. Daily average production capacity is high. Suitable for mass production of small parts. ​
• Performance indicators:  Aluminum alloy die castings have high tensile strength. Dimensional tolerance is well controlled. Suitable for making transmission brackets and conveyor belt guides for food packaging machines. ​

JC Casting Application in Food Machinery Castings

Food machinery castings are widely used. And play a key role in food processing, production, packaging and other links.

1. Raw material processing link

1. Cleaning equipment:  Such as the drum and bracket of the vegetable washing machine. It must be resistant to water, acid and alkali.
2. Crushing/grinding equipment:  Such as the hammer of the crusher, the grinding disc of the grinder, etc. High-strength alloy castings are mostly used to withstand high-speed rotation and the impact and friction of materials.

2. Processing and molding

1. Mixing/stirring equipment:  Mixing shaft of dough mixer, paddle seat of mixer, etc. Need to be in direct or indirect contact with food. Mostly use food-grade stainless steel castings. Easy to clean. Avoid bacterial growth.
2. Cooking/sterilization equipment:  Such as the body of the sterilization kettle, steam pipe connectors, etc. Need to withstand high temperature, high pressure and steam corrosion.
3. Frying equipment:  Fryer body, heating tube fixing frame, etc. Need to be oil-resistant and high temperature resistant. Alloy castings or surface-treated cast iron parts are often used.
4. Refrigeration equipment:  Shelves in cold storage, compressor base of freezer, etc. Need to be low temperature resistant and rust-resistant.

3. Packaging and transportation

1. Packaging equipment:  Filling head base of filling machine, pressing mold of sealing machine, etc. Requires high dimensional accuracy. Ensures the sealing and consistency of packaging. Usually uses precision casting stainless steel or aluminum alloy castings.
2. Conveying equipment:  Rollers, chain wheels of conveyor belts, etc. Need to have good wear resistance and transmission stability. Cast iron or alloy castings are often used. Low cost and suitable strength.

Collaboration with JC Casting

At JC Casting, you will get full chain guarantee in the field of food machinery castings. We have been deeply involved in the casting industry for more than 20 years. From raw material smelting to precision processing, we have sterile control throughout the process. We eliminate the risk of excessive heavy metals. All castings are certified by FDA and LFGB.

We have multiple automated production lines. Equipped with precision equipment such as spectrometers. Ensure that the dimensional accuracy of each product meets the requirements of food machinery adaptation. JC’s technical team can provide customized services from drawing optimization to sample trial production. Quick sample production. Efficient mass production. Greatly shorten your R&D cycle.

If you have any needs, please contact JC Casting. Choose JC Casting. Choose a compliant, efficient and stable supply chain partner.