Manufactured By: Thermo Fisher Scientific
The Thermo Scientific HAAKE PCR620 is a twin-pump bypass rheometer that provides online rheological measurements of melt index and viscosity in polymer processing.
With more than 200 installations around the world, the HAAKE PCR helps to improve our customers’ product quality.
The Thermo Scientific HAAKE PCR620 (Process Control Rheometer) measures the melt index at standard ASTM loads or at higher loads (with back-calculation to standard load) in order to reduce lag time. The patented, slit die pressure-control feature allows the HAAKE PCR 620 to operate at pressures above the process pressure, thereby ensuring operation in the linear region of the transducers and preventing out-gassing. This also allows the HAAKE PCR620 to cover a wide melt index range and follow transitions with a single die eliminating costly and troublesome die changes common to other systems. The HAAKE PCR 620 can operate in a variety of modes: melt index mode, transition melt index mode, purge mode, viscosity mode (stress or rate control) and combinations of those.
The Thermo Scientific HAAKE PCR620 can also report a synthesized Mooney or Intrinsic Viscosity (IV) value – a mathematical calculation from measured shear viscosity data. For ease of operation, recipes consisting of operating parameters and control values can be stored for various product grades. The HAAKE PCR620 logs all data and events in a database for trend analysis, SPC reporting and data storage.
The HAAKE PCR620’s “return to stream” design is available with a valve block for process isolation and an optical block to allow online spectroscopic analysis (offered as options, additional equipment required). All melt pumps and slit dies are easily ex changeable to adapt the rheometer to specific processes.
• Online melt index measurement
• Online viscosity measurement
• Polypropylene(PP) Polyethylene(LDPE/HDPE/LLDPE) Polyester(PET) Ethylene Vinyl Acetate(EVA)
• Polymethylmethacrylate(PMMA) Polystyrene(PS) Polyamide/Nylon(PA) Polycarbonate(PC)
The HAAKE PCR620 electronics, based on the SLC-500® PLC from Rockwell International (Allen-Bradley), provides superior support and integration using industry standard components and technologies. New software features provide capabilities never before available.
The process supervisor for Microsoft® Windows® software offers unmatched ease-of-use and an operator friendly design. The software, based on RSView® 32™, is designed for integration into plant DCS systems. It offers data communication with a variety of protocols like, Data Highway plus®, ModBus® and the latest innovation in process control, OPC (OLE for Process Control). Standard analog signals (4-20 mA or 24 VDC) are also available.
Installation & Maintenance
Installation expertise exists for adaptation to extruders from all the major manufacturers. The HAAKE PCR620 is typically installed on finishing and compounding extruders upstream to a pelletiser or mounted as a side stream with a piping adapter. It can be retrofitted to many existing process systems. It uses a permanently lubricated sealed-for-life gearboxes, allowing it to be mounted in any orientation. It is also interchangeable with existing PCR and MFM installations as an upgrade option. The HAAKE PCR620 is backed by a worldwide, direct support system for service and training of plant personnel. We also provide services to assist with the integration of the HAAKE PCR620 in plant DCS systems.
The HAAKE PCR620 provides superior ease of maintenance features and easy access to all critical components. It can be removed from the process by closing its isolation valves and removing only 2 bolts. The vast majority of maintainable components are standard stock items from major vendors of polymer processing hardware.
Additional Product Information:
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