Farrel Pomini

The CP Series II™ Compact Processor is a highly productive compounder designed specifically for top quality dispersion of highly filled, highly pigmented materials. It contains an independently controlled continuous mixer and an extruder system.

The Compact Processor is able to process highly abrasive materials outperforming other processors. It is designed to incorporate various types of feeding systems and pellet formation components for versatility making its applications virtually unlimited.

Key Features Include:

• Two counter rotating, non-intermeshing rotors; available in various pairings and geometries
• The mixing chamber barrel incorporates numerous features which enhance the CP’s processing performance, operation and maintenance
• A hot feed pumping extruder, with minimal residence time
• Individual drive motors for mixer and extruder means that the mixing function can be optimized independent of the pumping function.
• The control system can be set in automatic or adjusted manually during operation

The CPeX® is the Laboratory Compact Processor utilizing the unique and proven FARREL POMINI continuous mixer technology in a size suitable for testing and development. The CPeX® design allows compounders to conduct laboratory scale product development trials, extend product application portfolios, expedite time to market and reduce development costs.

Key Features Include:

• 10 – 30 Kg/hour production capacity. The CPeX® can accept full size pellet as well as standard feed materials
• Supports both CP Standard and CPXL rotor configurations on one platform
• Fully integrated wiring and piping that is “connect and go”; suitable for any industrial voltage
• Fully functioning orifice for performance as flexible as production machines
• Single screw flex wall volumetric feeder
• PLC-based control system with Wonderware touchscreen HMI for easy operator use
• SCADA functionality for remote analys

The FCM™, Continuous Mixer is a robust, independent mixer proven on intensive mixing applications as an independent mixer for a vast range of uses such as, polyolefin, polystyrene and PVC based compounds. The FCM™ line of equipment processes rated from 400 hg/hr to 40,000 kg/hr. For post-reactor applications, the FCM(TM) can be combined with an FMP(TM), Farrel Melt Pump and Underwater Pelletizer.
Features include:
• Counter-rotating, non-intermeshing rotors that give a large free volume for material circulation enabling superior distributive dispersion
• Unique rotor geometry enables superior dispersive mixing
• Mixing intensity can be selected as functions of rotor speed, working volume, thermal conditions and residence time
• Large rotor tip-to-wall clearance minimizes wear effects
• Large feed opening allows for high filler loadings
• PLC-based controls with touchscreen, expandable to include a supervisory system
• Modular components result in easy maintenance and higher productivity
• Energy efficient with low operating costs

The UMSD, Side Discharge Continuous Mixer, is a highly advanced mixer for high capacity processing of polyethylene, polypropylene and other primary plastics in the petrochemical industry.
This processing line can work as a one-stage or two stage mixer and can be configured with a Farrel Melt Pump (FMP™), Divert Valve, Screen Changer and C-Series Underwater Pelletizer.

Key Features Include:

• The control system adjusts parameters automatically to meet specific energy or discharge pressure set points
• Externally adjustable mixing intensity
• Multiple temperature control zones 
• Available with various L / D design

FARREL POMINI Underwater Pelletizers incorporate numerous innovative processing, mechanical and control features that assure consistent performance, quality pellet output, efficient operation and simplified maintenance. Choose between the standard electrically powered “C” model or the hydraulically powered “H” model. Both incorporate: a quick opening cutting chamber, hydraulic locking and unlocking, hydraulic opening and closing of the pelletizer and automatic retention of the cutter shaft alignment.
Key Features Include:
*  All pellet plates are custom designed to meet specific processing requirements. The cutting face can be provided with a selection of different hard metal surfacing materials in the form of tiles, nibs, segments or as a solid coating
*  Internal heating configuration is custom-designed based on the application and the available heating medium (steam or other thermal fluid)
*  Cutter shaft and knife alignment mechanism allow for precise alignment of the cutter shaft axis to the cutting face of the pellet plate
*  Alignment retention provided by hydraulically activated mechanical clamps that lock the water chamber and the cutter housing assembly to the pellet plate

The FARREL POMINI FMP™ provides melt pressurization with minimal temperature increase and great efficiency due to a positive displacement feature, minimal back flow and limited energy dissipation. It is connected directly to the finishing reactor flange (for “hot melt” discharge) or to a Farrel Continuous Mixer (FCM™) for granular or powder reactor discharge. The Side Discharge FMP™ does not alter the rheological properties of the polymer, assuring consistency in physical characteristics.

Key Features Include:
*  Custom designed inlet flange of the pump housing distributes the polymer melt over two intermeshing gears
*  Tangential feed pockets force the polymer melt into the tooth cavities and the intermeshing, high precision gears carry the   polymer melt along the periphery of the housing bores
*  Where the gears intermesh, the polymer is squeezed from the gear tooth cavities. Because of close tolerances, a high volumetric efficiency can be maintained over wide ranges of pressure and temperature
* Double helical gears for pulse free operation
* Gear shaft journals are supported by sleeve bearings, lubricated by polymer melt, tapped from the high pressure discharge. 

For standard polymer finishing line applications, the FMP™ employs a single drive shaft connected to a variable speed motor and gearbox. With this arrangement, the driven gear shaft turns the idler gear in the pump housing
For high viscosity applications both shafts are driven.

The Hot Feed Extruder is designed to take the material from the Farrel Continuous Mixer (FCM™). The oversized hopper opening insures efficient feeding. The continuous feed of material permits orientation of these extruders either parallel or at right angles to the axis of the Continuous Mixer rotors.

Key Features Include:

• Connecting chutes between the mixer and the extruder are included as standard equipment
• These chutes have a divert door for redirecting start-up and shutdown material from the FCM™
• Standard options include: specially sealed designs suitable for nitrogen purging or vacuum application, illumination of the interior and adaptation for monitoring of material in-feed
• Custom designed screw geometry  (L/D, vented, mixing)
• Optimized pusher for uniform ingestion

The Reactor Fed Extruders are designed to receive the hot melt stream coming directly from a reactor. The hopper cylinder and its support are designed to carry the weight of a gravity feed vessel.

Key Features Include:

• Seals are incorporated in the rear of the hopper cylinder to minimize leakage of polymer with the screw turning or stationary
• Rear vented hopper cylinders are available to aid in degassing the melt
• Injection ports for introducing additives in masterbatch or liquid form can be furnished in hopper and forward cylinders
• Mixing screws are often used to enhance the incorporation of these additives
• A special “melt homogenizing” extruder design which modifies LDPE to improve melt flow characteristics and optimal properties can be furnished.