SJPS Series Single Screw Extruder

The SJPS series single screw extruder is suitable to variable floating, sinking and aquafeed production, especially suitable for the production of various floating aquafeed, and also widely used in the production and processing of pet food.

Key benefits

Low energy consumption

For fresh water floating feed production, the capacity can be increased 20% and energy consumption per Mtons can be reduced to 20-23kW.h/Mton comparing the equipment of competitors in Chinese market.

Wild range

SJPS series can handle variable formulas like high, middle and low level recipe of floating and sinking aquafeed and 0.8 mm, 1.0 mm floating feed micro pellet production.

Satisfying product quality

Uniform extruded pellets with high fat absorption, unique visual appearance, environmental friendly and sustainable.

Highlight Features

High capacity

All new SJPS series single screw extruder applies 13.2:1 as the ratio of screw length by diameter and steady-state screw configuration. Therefore high capacity of floating and sinking feed production can be pursued.

More stable and safety

International first-class brand bearing, oil sealing and high efficiency transmission. Replacement cycle is extended to 3000-5000 hours for screw with new style wear-proof material.

Better degree of gelatinization

High efficiency 3 layer pre-conditioner and particular liquid injection structure is implemented to guarantee mixture of moisture and raw material. Using EDEM to simulate the areas organization and optimize order of paddles, to increase fill ratio, extend residence time and improve performance of preconditioner.

Low production and investment costs

Production cost and effect can be comparable to the twin screw extruder, the investment cost is much lower than the twin screw extruder.

Main structure

1. The mounting block of motor

2. Variable frequency motor

3. The mounting block of extruder

4. Pipeline of main machine

5. Supporting frame

6. Extruding assembly

7. Cutting assembly

8. Suspension rod

9. By pass

10. Bearing base

11. Reduction gearbox

Technical parameters

Model	Screw Dia. (mm)	L/D	Main power (kW)	Floating feed Φ4.0 (t/h)	Pet food (t/h)	Sinking feed Φ4.0 (t/h)
SJPS135	Φ135	13.2:1	90/110	1.8-2.2	1.8-2.2	1.2-1.5
SJPS165	Φ165	13.2:1	160	4.5-6.0	4.5-6.0	2.2-3.5
SJPS215	Φ215	13.2:1	250/315	8-12	8-12	4-8
SJPS265	Φ265	13.2:1	560/630/710	15-20	15-20	8-10

Note: The above data is based on reference formulas that: starch≥16%, protein≥30%, oil and fats in 4~6%, fiber≤6%, and die hole diameter≥4.0mm. One influence factor of capacity is the content difference of ingredients.

Related applications

SJPS Series single screw extruder is mainly applicable for processing floating and sinking feed in aquafeed industry and producing expanded pet food. Vacuum system and pressure chamber are options to control bulk density. Quality of extrudates is improved with stable performance of equipment and fully-automatic control system.

Aqua feed

Pet food

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