Performance test results

To test and prove our concept, ETI put the E975 Extruder through the paces in product ranges identical to those mentioned previously.

Table 1: Typical dog food

Feed rate (lbs/hr)

4,000 6,000 4,000 6,000 8,000 10,000

Extruder RPM

425

425

600

600

600

600

Load (% FLA*)

76% 88%

54%

66%

81%

59%

SME** (k WHr/Tom)

Avg. bulk density (lbs/ft³)

47

35

34

27

24

21

27

27

27

26

27

28

For this test series, a typical dog food formulation was used consisting of 35% starch, 29% protein, 5% intrinsic fat, 10% intrinsic moisture. The primary objective was to produce a typical dog food pellet with a bulk density betweek 26 - 28 lbs.ft², while maximizing the production capacity.

Table 2: Typical cat food

Feed rate (lbs/hr)

4,000

6,000

8,000

4,000

6,000

Extruder RPM

425

425

425

600

600

Load (% FLA*)

76%

86%

86%

42%

59%

SME** (k WHr/Tom)

Avg. bulk density (lbs/ ft³)

44

35

27

27

25

25

25

24

24

23

For this test series, a typical cat food formulation was used consisting of 31% starch, 29% protein, 6% intrinsic fat, 10% intrinsic moisture, 4% non-intrinsic fat. The primary objective was to produce a typical cat food pellet with a bulk density between 23 - 25 lbs/ft³, while maximizing the production capacity.

*FLA = full load amperage

**SME = specific mechanical energy