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ZSK Mv (MEGAvolume). Plants and Extrusion Systems.

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Presentation on theme: "ZSK Mv (MEGAvolume). Plants and Extrusion Systems."— Presentation transcript:

1 ZSK Mv (MEGAvolume)

2 Plants and Extrusion Systems

3 Coperion: Together - for Our Customers' Success America EuropeAsia 2,000 employees 20 subsidiaries worldwideEUR400m sales GEORG FISCHER +GF+ (50,1%) West Private Equity / WestLB (49,9%)

4 ZSK MEGAvolume Compounding with large screw channel volume MEGAcompounder with high torque Introduced at K‘ 1995 MEGAvolume with large screw volume Introduced at K‘ 2001 represents a second ZSK series

5 ZSK MEGAvolume Compounding with large screw channel volume MEGAvolume with large volume for products with low bulk density for processes with low specific energy input (< 0.1 kWh/kg)

6 Weller, 8.1.2002 Diameter ratio: OD / ID Specific torque: M d / a 3 OD = Outer screw diameter ID = Inner screw diameter a = Center distance 2-flighted profile OD ID a Characteristic dimensions of co-rotating twin-screws

7 OD to ID Ratio

8 Weller, 8.1.2002 ZSK Standard OD / ID = 1.25 ZSK-Variable OD / ID = 1.44 CONTINUA OD / ID = 1.71 ZSK Super Compounder ZSK MEGA Compounder OD / ID = 1.55 OD/ID Free volume and permissible torque as a function OD/ID Free volume Torque Balanced ratio of free volume and torque Development of the ZSK

9 ZSK Mv (MEGAvolume) ZSK Standard D a / D i = 1,25 Same Center Distance ZSK MEGAvolume D a / D i = 1,80 ZSK Super Compounder D a / D i = 1,55 ZSK MEGAcompounder D a / D i = 1,55 Increasing Volume Increasing Torque and Volume Torque ZSK-variabel D a / D i = 1,44 Flight Dep[th Free Volume and Allowable Torque shown as a function of Flight Depth Free Volume Balanced ratio of free volume and torque

10 ZSK Mv (MEGAvolume) Better Feed Lower Sheer Lower Material Temperature Lower work on the product - depending upon the process can produce better quality Reliable Devolitilization Result: Deeper Flights Allow Higher Screw Speed v u v u Sheer speed gamma = v u /h h max h' max D a /D i = 1,8 D a /D i = 1,55 ZSK Mv

11 0 50 100 150 200 250 300 350 400 450 500 0100200300400500600 RPM 1.22 OD/ID1.44 OD/ID1.55 OD/ID1.71 OD/ID Ave Shear Rate (sec^-1) Effect of OD/ID & RPM on average shear rate

12 ZSK Mv (MEGAvolume) Higher Volumes through Expansion of the Barrel Bores and Deeper Cut Screw Flights MEGAcompounder D a / D i = 1,55 MEGAvolume D a / D i = 1,8 DiDi DaDa

13 ZSK Mv (MEGAvolume) Progression of Free Volume

14 ZSK Mv (MEGAvolume) Application Examples Experiences with Process Technology and Production Processing of Highly Filled Compounds - Increase of throughput up to 50% with the same RPM - Increase of filler (SiO 2 ) from 15% to 20% Production of Powder Coatings - 60% higher discharge efficiency - Possibility of feeding higher rates of fines Food Extrusion - 60% more throughput in the production of pet foods

15 ZSK Mv (MEGAvolume) ZSK McDesign TypeStandard ZSBZSK MvDesign TypeStandard ZSB 25Tie Rod25--- 32 neuTie Rod4034Tie Rod40 Tie Rod4043Tie Rod40 50Tie Rod5854Tie Rod58 Flange5862Tie Rod70 Flange7076Flange92 Flange9298Flange120 (118)Flange120125Flange133 Flange133---

16 ZSK Mv (MEGAvolume) ZSK MvCenter Distance Torque (Md / Shaft) Max. SpeedMax. Power (kW / Hp) Gearbos Lube Oil System 32 MC26,22051200 54 kW / 72 Hp Splash with cooler 3426,21561800 62 kW / 83 Hp Splash with cooler 4333,43251800 129 kW / 173 Hp Recirculating 5441,66251800 247 kW / 331 Hp Recirculating 62489601800 380 kW / 511 Hp Recirculating 7658,517501800 693 kW / 929 Hp Recirculating 987638501500 1270 kW / 1704 Hp Recirculating 1259780001500 2639 kW / 3539 Hp Recirculating

17 End Barrel ZSK 62 Mv ZSK Mv (MEGAvolume)

18 Tie Rod Arrangement for the ZSK 62 Mv

19 ZSK Mv (MEGAvolume) Arrangement fo ZSK 32/34 Mv

20 If you need even high rates


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