Key Takeaways
A 700 kg/h Wet-type single screw fish feed making machine is an optimized solution for India’s medium-scale aquaculture. During factory testing, the machine verified a 91.2% starch gelatinization rate and stable 12-hour buoyancy for Rohu and Tilapia feed. It is specifically engineered to handle abrasive local materials like De-oiled Rice Bran (DORB) while maintaining lower operating costs than twin-screw systems.

Quick Summary

• Machine Capacity: Verified output up to 715 kg/h .

• Extrusion Type: Wet-type single screw with Differential Diameter Conditioner (DDC).

• Pellet Sizes: 1-10 mm; high-precision dies for 1.5mm fingerling feed.

• Technical Benchmarks: 90%+ starch gelatinization; Steam consumption: 150-200kg/ton.

• Target Market: Indian SME feed mills (Andhra Pradesh, West Bengal, etc.).

• Durability: High-chromium alloy screws for 3,000+ hours of service life.

200-4000kg/h Wet-type single screw floating fish feed pellet machine test for Indian Customer

Introduction

India is one of the world's largest aquaculture producers, with a rapidly growing demand for floating feed to reduce the Feed Conversion Ratio (FCR) for species like Rohu, Catla, Tilapia, and Pangasius. As farmers move away from sinking mash, the need for reliable extrusion equipment that can handle regional raw materials is paramount.

To meet these requirements, MIKIM recently completed a Factory Acceptance Test (FAT) of a 700 kg/h wet-type single screw fish feed extruder for an Indian customer. The trial confirmed that the equipment provides the "Sweet Spot" for medium-scale manufacturers—industrial-scale output with an optimized Return on Investment (ROI).

Why Choose a 700 kg/h Wet-type single screw floating fish feed pellet extruder machine?

For many Indian commercial producers, this machine provides an excellent balance between capacity and investment.

• Strategic ROI: It offers 40%-50% lower CAPEX than twin-screw systems while delivering industrial-standard floating pellets.

• Process Stability: Unlike dry type floating fish food pellet extruder machines, the wet-type process utilizes steam to soften fibers, making it ideal for the high-fiber formulations common in India.

Machine Overview & Engineering Specs

The Wet-type single screw fish feed extruder machine integrates mechanical compression with advanced hydrothermal conditioning.

• Optimized L/D Ratio: Ensures sufficient residence time for thorough cooking of Indian grain-based formulas.

• Advanced Metallurgy: Equipped with high-chromium V-Ti alloy screws and a nitrided barrel to resist the abrasive silica found in local rice husks.

• Steam Conditioning: Utilizes a DDC system to increase mash temperature to 90°C–95°C before extrusion.

Factory Test Procedure

Every MIKIM machine undergoes a rigorous 4-hour continuous load test to ensure it is ready for immediate commercial production upon arrival in India.

1. Pre-Test Inspection

Engineers inspect electrical safety (415V, 50Hz compliance), gearbox lubrication, and the integrity of the high-pressure steam seals.

2. Raw Material Preparation & Grinding

The test used a standard Indian formulation (DORB, Corn, Soybean meal, etc.).

• Critical Requirement: Materials were ground to 60-80 mesh. This fine particle size is essential in single-screw extrusion to ensure even steam absorption and prevent "barrel slip" or surging during production.

3. Hydro-Thermal Conditioning

Steam was introduced at 0.4 Mpa. This stage is crucial for Indian manufacturers because it:

• Pre-hydrates fibers (DORB/Wheat bran).

• Achieves the 90%+ starch gelatinization required for excellent water stability.

• Reduces mechanical wear on the screw by lowering the mash viscosity.

4. Extrusion & SME Monitoring

During operation, engineers monitored the Specific Mechanical Energy (SME) and motor amperage. The machine maintained a stable current within ±5% variance, even when processing high-fiber materials.

5. Drying & Cooling Control

Fresh pellets were dried to a water activity (aw) of <0.60, ensuring a long shelf-life in India’s humid climate.

Pellet Quality Evaluation (Test Results)

Advantages of the Wet-type single screw floating fish food maker machine for the Indian market

1. Compatibility with Local Raw Materials (DORB/Rice Bran)

Indian manufacturers often use De-oiled Rice Bran (DORB). The high silica content in DORB is abrasive, but MIKIM’s alloy components extend the screw life to 3,000+ hours, keeping wear-part costs to approximately $1.8 - $2.5 USD per ton.

MIKIM’s modular screw elements and high-alloy die plates. Designed for a 3,000+ hour service life, these components are engineered to withstand abrasive Indian raw materials like De-oiled Rice Bran (DORB) while maintaining consistent pellet uniformity.

2. Cost-Effective Investment (Low OPEX)

Compared to twin-screw systems, this machine offers:

• Lower energy consumption per ton (28-32 kWh/Ton).

• Simplified maintenance that can be handled by local technicians.

• Faster capital recovery for SMEs.

3. Improved Fish Growth Performance

By maximizing digestibility through high-temperature conditioning, this machine helps farmers achieve a 15%-20% reduction in FCR, making MIKIM-produced feed highly competitive in the Indian market.

FAQ

Q1: How does the water stability of these floating pellets affect pond water quality in India?