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Email: carey@oilpresses.org
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Pre-press machine
To meet with the demands of large scale oil fatty extraction industry development, pre-press machine has been the most widely used for the pre-press and extraction process. the pre-press machine’s barrel compress is bigger and press time shorter, dry basis oil residue is higher(12%-24%). Because it has low requirements for the oil seeds moisture and temperature,also requires lower with cooker and feeding system. National standard pre-press has ZY24 type(50t/d), ZY23875t/d), ZY28(150t/d)、ZY32(260-300t/d)and YZ390(300t/d)modesl on “Krupp”, etc .
Type small-scale Medium-sized Large-scale
Model ZX10 95 ZX18 ZX28 YZ390 ZY24 ZY28
Capacity/(t/d) 4 4-5 10 30-40 250-300 45-50 140-160
The pressing cage Inside diameter/mm 97.3 97 180 280 390 242 280
Length/mm 657 559 1036 - - 1092 -
Pressing screw shaft Outer diameter/mm 95 94.5 176 - - 238 -
The section number×Length 8×660 7×644 7×1099.5 - - 8×1155 -
Speed/(r/min) 27-35 40 8 15 - 15 -
Compression ratio 8.13 7.36/1.3 7.12 - 7.4-9 7.4-9 7.4-9
Time/s 30-45 45-50 125-150 - 60-70 60-70 60-70
Feed shaft speed/(r/min) 24-28 24 67-69 - Frequency conversion feeding 49 Screw feeding
The cake thickness/mm 1-2.5 1-2 5-8 15-18 15-22 12-15 15-22
Residual oil/% 5-7 6-8 5-7.5 6-7 16-20 10-18 16-20
Power/kW 7.5 - 18.5 90 160 30 75
Height/kg 600 650 5000 - - 5500 9160
Dimensions/mm 1600×900×1330 2900×1850×3270 - - 2900×1850×3640 2708×1920×3843

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