Custom Feed Extruder Machine Manufacturers

As Custom Feed Extruder Machine Manufacturers, Goldlong Machinery And Engineering Co., Ltd. designs and builds extrusion systems for aqua, pet, and poultry feed producers. Our SPHS Series is used for continuous production of floating and sinking pellets from roughly 1 mm to 12 mm, with the flexibility to add liquid ingredients through a dual-shaft differential conditioner. We supply the extruder as a stand-alone unit or as part of a complete feed production line with grinding, mixing, drying, coating, cooling, and conveying equipment.

Extrusion Technology and Process Fit

Extrusion cooking is the key process step when the feed formula needs high starch gelatinization, controlled density, and stable particles in water. The SPHS extruder uses a dual-shaft differential conditioner to pre-cook and hydrate the material before extrusion, giving the process more residence time and better cooking consistency.

• Floating and sinking aqua feed for shrimp, eel, bullfrog, ornamental fish, and commercial fish farming.
• Pet food recipes such as dog food, where expansion, shape, and palatability are important.
• Poultry feed applications that need uniform pellet size and high feed conversion efficiency.
• Liquid addition of fish oil, lecithin, fish lysate, and similar ingredients to improve nutrition and feed acceptance.
• High water stability, even particle size, and low fines, which reduce feed loss during use.

SPHS Series Extruder Range

The SPHS Series Aqua Feed Extruder is our current extruder family. It is available in two frame sizes, both with a conditioning section, forced feeding, and a variable-speed cutter. The main shaft box uses a circulating lubrication system, and imported high-quality bearings can be selected for long, continuous running.

The exact capacity depends on formula, moisture, particle size, and expansion ratio. We match the motor, conditioner, feed screw, and cutter to the production target during project design.

Configuration and Line Integration

We configure the extruder around the actual formula rather than offering a fixed machine. The screw profile, die hole pattern, conditioner retention time, and cutter speed are selected to control expansion, bulk density, water stability, and pellet length.

For new plants, we integrate the extruder with upstream grinding and batching and downstream drying, coating, and cooling. Our engineering scope includes electrical control design, installation, and commissioning of the extrusion line. For plants already running a Pellet Mill, the extruder can be added as a separate expansion line or combined with conventional pelleting in a flexible layout.

We also develop modifications based on customer drawings, product samples, or specific process targets. This is how we treat each project as a custom solution within the Product Center range.

Quality Assurance and Manufacturing Control

Goldlong operates a 14,000 m² manufacturing facility and uses ERP management to track workshop operations, equipment utilization, and quality consistency. Each extruder undergoes comprehensive inspection before shipment, covering performance, stability, safety, and full-system testing.

This direct production control is important for extrusion equipment because the conditioner, feeding, screw, and cutter must work together at operating temperature and moisture. Procurement and project teams work directly with the engineers who design, build, and test the equipment before it leaves our factory in China.

Installation, Commissioning, and After-Sales Service

We supply extruders and complete feed projects on a turnkey basis, from process design and equipment manufacturing to installation, commissioning, and after-sales service. The project team coordinates foundations, piping, electrical connections, and startup so the line is handed over ready for production.

• Operator and maintenance training on extruder settings, die changes, and routine checks.
• Spare parts supply with common wear parts kept in stock for rapid replacement.
• After-sales follow-ups and remote diagnostics to solve operational issues quickly.
• 24-hour rapid response support through the project and equipment life cycle.

Our extruders and feed projects have been delivered to Russia, Romania, Indonesia, New Zealand, the Philippines, Bangladesh, Pakistan, Iran, Syria, Jordan, Saudi Arabia, and Sudan.

Information We Use to Configure Your Solution

To prepare a configured proposal, we use the following project inputs:

• Target capacity in tonnes per hour and planned operating hours.
• Feed type: floating, sinking, shrimp, fish, pet food, or poultry feed.
• Pellet diameter range and required water stability.
• Formula details, raw materials, moisture content, fat, starch, and fiber levels.
• Liquid addition requirements such as fish oil, lecithin, or fish lysate.
• Existing utilities: steam, power, water, compressed air, and plant layout.
• Upstream grinding and batching equipment, and downstream drying, coating, and cooling systems.
• Automation level and interface requirements with existing controls.

These details determine the screw configuration, motor size, die selection, conditioner capacity, and auxiliary equipment needed for the line.

Frequently Asked Questions