1. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO Walter Bonazzi Polivinil Rotomachinery S.p.A. - Italy ROTOMACHINERY GROUP: 360° ROTOMOULDING

2. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO PRINCIPLES OF ROTOMOULDING Rotational moulding is a manufacturing process for thermoplastic materials that allows hollow articles to be produced of any shape or size. The process began to be used typically for containers, taking advantage of the fact that hollow articles could be produced without the subsequent need to weld or assemble. Applications have multiplied, thanks too to the continuing development of research applied to the polymers used in the process: polyethylene, (LLDPE,LDPE, LHDPE, HDPE), cross-linked polyethylene, polypropylene, E.V.A., nylon, polycarbonate, PVC, etc.

3. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO ROTATIONAL MOULDING PROCESS LOADING. Polymer (powder) is poured into mould(s) which is then closed. HEATING. Arm/Mould starts bi-axial rotation, heating is transferred from the oven hot air to the outside/inside of the mould and to material. Polymer starts melting following internal mould’s surface and will end in a uniform layer. COOLING. Cold air/misty water are used. Cooling is transferred to the outside/inside of the mould and to material. Crucial for certain products. Arm/Mould ends bi-axial rotation UNLOADING. Opening mould(s) and removing moulded part(s).

4. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO MAIN ADVANTAGES OF THE PROCESS 1.Stress free process; 2.Design freedom: just think; 3.Maximum versatility: products of various shapes, sizes and thickness moulded together; 4.Complex shaped articles can be moulded in one piece; 5.Moulding-in inserts as metal fixing, plastic and rubber parts; 6.Colours and materials can be changed rapidly; 7.Limited wastage: an almost exact correspondence between the quantity of material required and that utilised. Some trimming and removal might be required; 8.Double walls products; 9.Low pressures used and reduced speed of rotation minimise wear moulds/moving parts; 10.Possibility of changing thickness of product to achieve the rigidity and impact resistance desired; 11.Limited initial investment compared with the productive capacity available; 12.Low cost of moulds and reduced management costs; 13.Small to medium quantity production (10 to 5000/10000 pcs/year)

5. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

6. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

7. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

8. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

9. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

10. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

11. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

12. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

13. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

14. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

15. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO EXAMPLE OF ROTOMOULDED PRODUCT from www.rotationaldesign.it

16. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO WHO WE ARE? - MACHINERY SUPPLIER WORLDWIDE SINCE 1979 - 2 FACILITIES IN ITALY AND CANADA (TOTAL 6000 SQUARE METERS) - 150 PEOPLE (EMPLOYEES AND STABLE SUB-CONTRACTORS) - 100% ROTOMOULDING: ENGINEERING, DESIGN, FABRICATION, TEST AND INSTALLATION OF MACHINERY, ACCESSORIES, MOULDS AND MATERIAL PREPARATION/HANDLING SYSTEM - MORE THAN 400 MACHINES OPERATING IN 6 CONTINENTS; EXCELLENT REPUTATION IN THE MARKET FOR SUPPLYING STATE-OF-THE-ART MACHINERY APPRECIATED FOR RELIABILITY, LOW CONSUMPTION, COST-EFFECTIVE MANAGEMENT - AFTER-SALES SERVICE, SPARE-PARTS AVAILABILITY, ASSISTANCE AND CONSULTANCY AT HIGHEST STANDARD FOR ACCURACY AND TIMELESS - HOLDING 3 PATENTS FOR ROTOMOULDING MACHINERY AND CONTROL OF THE PROCESS.

17. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO 360° PRODUCT LINE INDEPENDENT ARMS CARROUSEL SHUTTLE ROCKING OVENS BOX-OVENS LAB-MACHINE CUSTOM PULVERIZERS DOSING MOULDS

18. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO INDEPENDENT CAROUSEL: PRM-C SERIES State of the art mechanical design with experience and professionalism to create a product that is a benchmark for the entire sector to which it belongs. Main features: - 6 or more stations – moulding chamber in sturdy steel thermically insulated; – special steel combustion chamber; – cooling chamber in stainless steel; – interchangeable arms in one-block; – possibility to use up to 3 airways; – independent arm-holder rotation driven by gearmotors; – primary and secondary rotation directed by geared-wheels. Applications: - High volume output (double cooling stations); - Flexibility (thickness/products/material). Most common sizes:

19. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO CAROUSEL PRM-SERIES A plant with a central turret: maximum reliability and simplicity in use. Main features: - configuration in 3,4,5 stations; - moulding chamber in sturdy steel thermically insulated; - special steel combustion chamber; - cooling chamber in stainless steel; - interchangeable arms in one-block; - possibility to use up to 3 airways; - ce3ntral turret rotation; - primary and secondary rotation directed by geared-wheels; - touch screen interface for management of the cycle. Applications: - High volume output for products with the similar cycle time; - Easy products (fast loading/unloading phase).

20. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO SHUTTLE MACHINE S-SERIES The most economical way of exploiting all the advantages offered by this technology. Main features: - The only one with 3 station; - Two independent mould-holding carriages alternating in cooking and cooling phases; - 3 to 5 independent cooking zones; - Loading/unloading operations on cooling stations at ground level; - Up to 4 airways for each arm; - Reduced space required. Applications: - big size products; - slow process.

21. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO ROCK & ROLL OVENS (H-SERIES) Fully automated hi-tech machinery for high productivity of large and very large parts. Main features: - The only one with 3 station; - Two independent mould-holding carriages alternating in cooking and cooling phase; - 3 to 5 independent cooking zones; - Loading/unloading operations on cooling stations at ground level; - Up to 4 airways for each arm; - Reduced space required. Applications: - Large container, septic tanks, canoe, kayak, boats.

22. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO TRM SERIES 100% FLEXIBILITY Total indipendence of each arm. Main features: - Central oven and 4 mould-holder arms passing from cooking to cooling independently; - Two consecutive moulding cycles can be performed on the same arm while moulds or even arm are being replaced on other carriages; - Each arm has its own cooling station: totally freedom in cycle-time; - Oven doors mounted on carriages; - Direct rotation with robust gear mechanism. Applications: - Productions of small different series; - Frequent change of the moulds; - Set-up of the process without stopping normal production.

23. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO TOTAL CONTROL SYSTEM Flexible, modular and continously proprietary software for management of the machine cycle. Main features: - Profibus architecture for hi-speed connecting devices; - Touchscreen industrial interface; - Extractable standard compact flash memory for loading program and saving archives/recipes; - Incorporated TCP/IP network card for saving data to LAN; - Setting and displaying cycles parameters; - Display of temperature curves; - Intelligent alarm management (troubleshooting); - Direct management of control arm inverters without opening frames; - Setting of 3 temperatures of cooking; - Setting of two different speeds on the primary and secondary in the same phases; - Zero search and indexing position of the moulding; - Preset for automatic management of temperature cycle functions.

24. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO BOX OVENS PRM 900 LINE A small machine for high volume of small PVC parts. Main features: - Single arm with gear movement equipped with two mould holder supports; - Completely automatic cooking cycles; - Cooling system made up of stainless steel tank with mould holder support for immersion in water. Applications: - Balls, dolls, toys, fenders, ecc...

25. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO LAB MACHINES Rotomachinery Group Technology for testing process, materials, moulds. Main fetaures: - Reproducing all the functionsand characteristics of rotational moulding machine in scale; - Single cooking/cooling station; - Up to 3 airways; - Special software of management; - Temperature auto detection system (real-time or post-phase).

26. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO MATERIAL HANDLING: PULVERIZING, CONVEYING, MIXING AND DOSING THE MATERIAL pulverizing conveying/mixing dosing loading

27. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO TURN KEY PROJECT Many customers rely on us for full-lines (machines, moulds, pulverizers, dosing unit). We are involved in the latest developement of the technology all over the world. manholes flower pots technical parts

28. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO LATEST TECHNOLOGICAL INNOVATIONS FROM ROTOMACHINERY GROUP: INTEL ARM (patented) The first “intelligent arm”. Intel arm is a system designed for reading the moulding and cooling temperatures data inside the mould in real time. Using temperature sensors connected directly to the command and control system on the machines, it is possible to have visual graphs of the temperature of the air inside the mould and of the material. Advantages: - Transmission of signals via cable (no disturbances due to interference and rotations); - Absence of batteries for powering the transmitter; - No electronic devices coming into contact with heat; - Temperature probes are easily replaceable.

29. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO AUTOMATIC PROCESS MANAGEMENT (patented) The first machine built to automatically adapt to variations in production and process conditions, by self regulating cooking and cooling cycle times. Examples: - Variations in quantity of material; - Variations in type of material (from PE to PP, etc.); - Variations in moulding temperature; - Cold oven/hot oven (first moulding, morning/evening, summer/winter); - Morning/evening, summer/winter cooling, air/water air. It is no longer necessary to rely on the operator’s experience or costly cycle testing processes; simply enter a few simple parameters once and for all and the machine sets itself on its own! INTEL OVEN (patented) The first oven built to manage the flow of hot air in the cooking chamber in relation to the mould in production. The heating of moulds is optimised by regulating the flow incidence angle depending on the shape and volume during rotation. The patented flow deviator angles the blades so as to concentrate the direction of hot air to the desired area, thereby increasing the efficiency of the process. Operates in two modes: -Continuous oscillation: the blades fluctuate so as to increase to -a maximum the flow incidence angle of air on the mould; -Fixed position: depending on the mould, the blades are angled so -as to concentrate the flow in the desired direction; - Automatic self regulating operating modes are currently being developed.

30. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO p r o d u k t g r u p p e r

31. PLASTEKNISKE DAGER 08/09 Nov 2006 – OSLO