MT75 Twin Screw Extruder

MT75 Twin Screw Extruder is an industrial food extrusion machine designed for continuous production of puffed snacks, cereal products, pet food, aquatic feed and other extruded foods. With a 75 mm screw diameter and a production capacity of approximately 300–500 kg/h for typical puffed snack applications, the MT75 provides a practical production platform for manufacturers that need more output than small extrusion systems while maintaining flexibility for different product formats.

The machine uses a twin-screw extrusion system to combine conveying, mixing, cooking, pressurization and shaping in a continuous process. By changing the extrusion die and adjusting the cutting system, the MT75 can produce different snack shapes without replacing the complete extrusion unit.

The MT75 can be supplied as a standalone extruder or integrated with mixing, drying, frying, seasoning, cooling and packing equipment for a complete food production line.

MT75 Twin Screw Extruder Specifications

Parameter	MT75 Specification
Model	MT75
Machine Type	Twin Screw Food Extruder
Screw Diameter	75 mm
Typical Capacity for Puffed Snacks	300–500 kg/h
Installed Power	220 kW
Power Consumption	130 kW
Screw Type	Twin Screw
Heating System	Electric Heating
Control System	PLC + Touchscreen
Cutting System	Adjustable Rotary Cutter
Die System	Interchangeable Die
Voltage	380V / 50Hz / 3Ph or customized
Temperature Range	50–180°C
Screw L/D Ratio	21:1
Machine Dimensions	4880L ×900 W × 2000H mm
Screw Material Barrel Material:	38CrMoAl 45# steel
Food Contact Material	stainless steel 304

Actual output varies according to raw material, formulation, moisture content, product shape, die design and operating parameters.

Explore our food extruder machines to create high-quality snacks, cereals, pet food, and other products.

What Makes the MT75 Different?

The MT75 is positioned between smaller snack extrusion systems and larger industrial extruders. Its 75 mm screw diameter and 300–500 kg/h typical puffed snack capacity provide a balance between production output and product flexibility.

Rather than being designed around one fixed product, the MT75 can be configured for different recipes, dies and cutting requirements.

Its main characteristics include:

• 75 mm twin-screw extrusion system
• 300–500 kg/h typical puffed snack capacity
• 220 kW installed power
• Approximately 130 kW power consumption for the listed puffed snack configuration
• Continuous extrusion and cooking
• Interchangeable extrusion dies
• Adjustable cutting system
• PLC-based process control
• Flexible product shaping
• Integration with complete snack and food processing lines

MT75 for Puffed Snack Production

The MT75 is particularly suitable for expanded snack production where manufacturers need multiple product shapes from one extrusion platform.

The extrusion system processes cereal- and starch-based mixtures under controlled heat, mechanical shear and pressure. After passing through the selected die, the material expands as it exits the high-pressure extrusion zone. A rotary cutter then cuts the extruded strand into the required length.

Depending on the die and cutting configuration, the machine can be used for products including:

• Corn puffs
• Puffed sticks
• Hollow snacks
• Ring-shaped snacks
• Ball-shaped snacks
• Star-shaped snacks
• Wheel-shaped snacks
• Flower-shaped snacks
• Special-shaped snacks

Meiteng's existing puffed snack line configurations list MT75 at 300–500 kg/h, making it a suitable core extruder for medium-to-large commercial snack production.

Product Shape Starts at the Die

For the MT75, product diversification is closely related to the die and cutter configuration.

The die determines the cross-sectional shape of the extruded product, while the cutter controls the final length.

This allows one MT75 extrusion platform to support different product formats without changing the main extruder.

Die Options

Different die openings can be selected for:

• Tubular products
• Solid sticks
• Rings
• Balls
• Stars
• Wheels
• Flowers
• Customized shapes

Cutting Options

The cutting system can be adjusted according to product diameter, expansion characteristics and required product length.

For snack manufacturers, this provides a practical way to expand a product portfolio while keeping the main extrusion equipment unchanged.

Raw Materials for MT75

The MT75 can process different grain-, cereal- and starch-based formulations, depending on the selected screw configuration and process conditions.

Typical materials may include:

• Corn flour
• Corn grits
• Rice flour
• Wheat flour
• Wheat starch
• Corn starch
• Potato starch
• Tapioca starch
• Cereal blends
• Grain-based formulations
• Pet food formulations
• Aquatic feed formulations

The final material range should be confirmed according to the actual formulation and target product.

Products Made by MT75

The MT75 can be configured for several extrusion applications.

Puffed Snacks

Suitable for direct-expanded snacks with different shapes, diameters and lengths.

Breakfast Cereals

The extrusion system can process cereal-based formulations into shaped or expanded cereal products for subsequent drying or coating.

Pet Food

With the appropriate screw, die and downstream configuration, the MT75 can be used as the extrusion core of a dry pet food production line.

Aquatic Feed

The machine can also be configured for floating or sinking aquatic feed according to formulation and density requirements.

The same extrusion platform can therefore serve different product categories when the appropriate process configuration is selected.

MT75 Optional Configurations

The MT75 can be configured according to the target product and production process.

Available options may include:

• Customized screw arrangement
• Different screw elements
• Different extrusion dies
• Adjustable rotary cutter
• Automatic feeding system
• Pre-conditioning system
• Vacuum exhaust system
• Additional temperature-control sections
• Stainless-steel food-contact components
• Customized PLC system
• Downstream dryer
• Frying machine
• Seasoning machine
• Cooling system
• Packing machine

The final configuration should be confirmed according to the raw material, product and required production capacity.

Twin Screw Processing System

The MT75 uses a twin-screw system to continuously convey and process the material through the barrel.

The two screws provide controlled material movement and mixing while mechanical energy and barrel heating contribute to the cooking process.

The extrusion sequence can be summarized as:

Feeding → Conveying → Mixing → Cooking → Pressurization → Die Extrusion → Cutting

Different screw element arrangements can be selected according to the formulation and target product.

Screw Diameter

75 mm

The 75 mm screw diameter provides the processing volume required for the MT75's target production range.

Screw L/D Ratio

21:1

The screw length-to-diameter ratio affects material residence time, mixing and cooking performance. The final configuration should be selected according to the raw material and finished-product requirements.

Screw Configuration

The screw assembly can be configured with different functional sections for:

• Conveying
• Mixing
• Kneading
• Shearing
• Cooking
• Pressure building

This configuration flexibility allows the MT75 to handle different formulations rather than relying on one fixed screw arrangement.

Feeding and Material Preparation

Stable extrusion begins with consistent feeding.

The raw material should be properly mixed and conditioned before entering the MT75. Uniform feeding helps maintain stable extrusion pressure and reduces fluctuations in product density and shape.

A typical preparation process is:

Raw Material Batching → Mixing → Moisture Adjustment → Feeding → Extrusion

For complete production lines, Meiteng can connect the MT75 with upstream mixing and feeding equipment.

Temperature Control

Temperature plays an important role in starch gelatinization, cooking, expansion and final product texture.

The MT75 uses controlled barrel heating to establish the required processing conditions along the extrusion path.

Temperature Range: 50–180°C

Different formulations may require different temperature profiles. Corn-based snacks, cereal products, pet food and aquatic feed should not necessarily use the same extrusion parameters.

The control system can monitor and adjust the relevant process settings according to the selected recipe.

Adjustable Extrusion and Cutting

The MT75 is designed for products where extrusion conditions and cutting parameters need to change between product formats.

Operators can adjust process settings according to:

• Raw material
• Moisture content
• Product diameter
• Product shape
• Expansion level
• Required product length
• Production rate

The cutter operates at the extrusion outlet and can be synchronized with the extrusion process to maintain consistent product length.

PLC Control System

The MT75 uses a PLC-based control system with a touchscreen interface for centralized operation.

Key operating parameters can be monitored and adjusted from the control panel.

The system can manage:

• Feeding operation
• Screw speed
• Barrel temperature
• Extrusion conditions
• Cutter speed
• Machine status
• Alarm information

Recipe-specific operating parameters can be established for different products after commissioning.

Why Choose MT75 Instead of a Smaller Model?

The MT75 becomes relevant when the required output moves beyond the typical range of smaller extrusion models.

Compared with the MT65 and MT70, the MT75 provides a higher listed production range while remaining below the MT85 in the same model series.

This makes it a practical option for manufacturers that need to increase production without immediately moving to the largest available extrusion model.

Installation Requirements

The MT75 should be installed on a stable, level production floor with sufficient space for operation, cleaning, maintenance and connection to auxiliary equipment.

The installation area should provide:

• Stable floor support
• Suitable electrical power supply
• Adequate ventilation
• Operator access
• Maintenance clearance
• Raw material feeding space
• Product discharge space
• Control cabinet space
• Connections for upstream and downstream equipment

Machine Dimensions: 4880L ×900 W × 2000H mm

The actual installation layout should be designed according to the complete equipment configuration rather than the extruder dimensions alone.

For a complete snack production line, the layout should also consider the mixer, feeding system, dryer, seasoning equipment and packing machine.

Maintenance Requirements

Regular maintenance helps keep extrusion pressure, temperature control and product output stable.

Daily Checks

• Remove residual material after production
• Clean the die and cutter area
• Check feeding performance
• Inspect unusual noise or vibration
• Check product output
• Clean accessible food-contact surfaces

Routine Inspection

• Inspect screw elements
• Check barrel wear
• Inspect alloy sleeves
• Check gearbox lubrication
• Inspect bearings
• Check heating elements
• Inspect temperature sensors
• Check cutter blades
• Inspect electrical connections

Maintenance During Product Changeover

Before switching between formulations, the extrusion system should be cleaned according to the operating procedure to reduce material carryover.

The die and cutter should also be inspected when changing product specifications.

Wear Parts

Wear depends on raw material characteristics, production hours and operating conditions.

Common wear and replacement components may include:

• Screw elements
• Barrel sleeves
• Dies
• Cutter blades
• Heating elements
• Sealing components
• Bearings
• Temperature sensors

Meiteng can supply replacement components according to the MT75 machine configuration.

For abrasive formulations, screw and barrel wear should be monitored more frequently.

Factory Testing

Before shipment, the MT75 can undergo factory inspection and testing according to the agreed machine configuration.

Testing can cover:

• Screw rotation
• Feeding system
• Temperature control
• Cutter operation
• PLC control
• Electrical system
• Continuous extrusion operation

Where applicable, trial production can be arranged using the target raw material and selected product configuration.

Factory testing is particularly useful for confirming extrusion stability, product shape and operating parameters before the machine is shipped.

MT75 for Complete Snack Production Lines

The MT75 can serve as the central extrusion unit in a complete puffed snack production line.

A typical process is:

Raw Material Preparation → Mixing → Feeding → MT75 Extrusion → Cutting → Drying / Frying → Seasoning → Cooling → Packing

The downstream configuration depends on the finished product.

For example, a direct-expanded corn snack line may combine the MT75 with a continuous dryer, seasoning system and automatic packing machine.

For filled or specially shaped snacks, additional shaping or filling equipment can be integrated after extrusion.

Meiteng provides food processing equipment covering extrusion, drying, frying, seasoning and packing, allowing the MT75 to be configured as part of a complete production system.

About Meiteng Machinery

Meiteng Machinery is a leading food processing machinery supplier with over 15 years of experience. Our twin screw and single screw extruders are exported to more than 50 countries, trusted for high efficiency, stable performance, and industrial food production.

Frequently Asked Questions

Is MT75 suitable for a new snack product?

It can be evaluated according to the raw material, formulation, required shape, moisture content and target capacity. For a new product, a trial extrusion test can help determine the appropriate die and process configuration.

Can one MT75 machine make several snack shapes?

Yes. Different extrusion dies and cutter settings can be used for different product formats. The main extrusion unit does not need to be replaced for every shape.

Can MT75 be connected to an existing dryer or seasoning machine?

Yes. The extruder can be designed to connect with existing downstream equipment when the capacity, product flow and connection requirements are compatible.

What should I provide when requesting an MT75 quotation?

Provide the target product, raw material, required capacity, product dimensions or shape, production hours, destination-country power supply and whether you need a standalone extruder or complete production line.

Can MT75 be used for products other than puffed snacks?

Yes. Depending on configuration, the MT75 can also be used for cereal products, pet food, aquatic feed and other suitable extrusion applications.

Can the MT75 be customized for different voltage standards?

Yes. The electrical configuration can be specified according to the destination country's voltage, frequency and phase requirements before manufacturing.

Can Meiteng test our raw material?

For formulations with special processing requirements, a material trial can be considered to evaluate extrusion behavior and product formation before final equipment configuration.

What happens when the product needs to be changed?

Product changeover normally involves cleaning the extrusion system and changing or adjusting the die and cutter configuration. The required procedure depends on the difference between the two formulations and product formats.

Can spare parts be supplied after installation?

Yes. Replacement parts can be supplied according to the MT75 model and actual machine configuration.

Can MT75 be supplied without the rest of the production line?

Yes. MT75 can be supplied as an individual extrusion machine or integrated into a complete food processing line.