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 LCR7000 Capillary Extrusion Rheometers   
  Single and Twin Bore Instruments for QA and R&D   Search our site:

Features:

All digital calibration
Piston speed of 0.03–600 mm/min (20,000:1 range)
Up to 45 shear stress or shear rate data points per test
Unique algorithms for polymer melt stability
Multiple barrel heating zones
Accurate and uniform heating up to 430°C (500°C optional)
Precision servo-drive motor and transducers
Tight control of stress and rate mode tests
Laser micrometer for accurate measurements of die swell (optional)
230V mains operation (other options available)
CE approved

Designed to meet the demands of a 24-hour-a-day shop floor operation
whilst maintaining the highest possible level of accuracy, repeatability and sensitivity. the LCR series rheometers are versatile and easy to use yet they offer the most sophisticated materials characterization, data analysis and reporting capabilities. They are equally useful for routine quality assurance testing and for research, development and troubleshooting applications. Although primarily designed for polymers and rubbers, these instruments are also useful with a wide range of materials such as foodstuffs, pharmaceuticals, ceramics, bitumens, and other extrudable materials.

The LCR7000 is fitted as standard with a 10kN load cell, the LCR7001 has a 10kN load cell and a barrel-mounted 1,400 bar (20,000 psi nom) melt pressure transducer, and the LCR7002 is a dual barrel version with dual 1,400 bar melt pressure transducers. Many years of service are ensured through the use of tungsten carbide dies and a hardened and honed tool steel barrel. LAB KARS advanced rheology software provides programming, control, analysis and data storage capability.

It is extremely useful to be able to monitor the load on the piston and the pressure just above the die entrance as some materials can bridge or "freeze" under pressure - eg filler particles can lock up, and some materials can stress crystallise. This can lead to a full load on the piston which is not transmitted to the material where the pressure transducer is located.

LCR 7000/LCR 7002 Specifications:

Barrel Length: 200 mm (7.88 in.) (LCR 7002 features dual barrel lengths)
Barrel Diameter: 9.55 mm ±0.005 mm (0.3760 in. ±0.0002 in.) (LCR 7002 features dual barrel diameters)
Barrel Capacity: approx 14ml
Drive System: DC servo motor
Piston Speed: 0.03 to 600 mm/min
Dynamic Range: 20,000:1
Apparent Shear Rate Rate with a 1mm Diameter Die: 0.4 to 7,296 s-1
Maximum Testing Force: 10 kN standard, 15 kN optional
Force Measurement Method:
       LCR 7000:
Load cell and barrel mounted pressure transducer supplied
      LCR 7002: Two barrel-mounted pressure transducers supplied
Dies: Tungsten carbide capillary, many L/D ratios available
Die Swell Measurement: Optional Laser Micrometer
Temperature Range: 430°C standard
Heating System: Multi-zone electric heater
Temperature Measurement: Platinum RTD 4-wire system
Temperature Control System: Adaptive PID temperature control algorithm 0.1°C resolution
Temperature Control Accuracy: ±0.2°C at 13 mm
Temperature Distribution in Test Area: <1% variation
Power Supply: 120/230 VAC 50/60 Hz ±10%
Power Consumption: 750 W maximum, 200 W typical
Data Processing System: Personal computer based
System Software: LAB KARS (Laboratory Advanced Rheology Software) For Windows™
Microsoft Excel based
LAB KARS Features: Bagley and Rabinowitsch Corrections, Carreau, Modified Cross, Power Law and polynomial curve fits, Arrhenius Temperature fit, statistical error estimation, shear rate
dependence, time at temperature relationship, critical shear stress, zero shear viscosity, intrinsic viscosity correlation


Ordering Information
:

To order, specify LCR 7000M for single bore or LCR 7002M for dual bore. Indicate 115 VAC or 230 VAC operation. Indicate the
desired option codes from below.

A complete set of operating and cleaning tools is included with each rheometer.

Example: D7000M - 115V - GP8000MR-8052-155

Option Code Description:

GP8000MR: Pentium class personal computer with LAB KARS For Windows™ software installed
LAB KARS: Laboratory Advanced Rheology Software (Requires personal computer with Microsoft Excel. Check with factory for system compatibility.)
8052-155: Pressure transducer port cleaning kit
GP7984d: Printer
D7990: Electronic load cell calibration kit (LCR 7000 model only)
D8052DS1: Laser Micrometer die swell measuring kit
8052-97K: High-speed barrel bore cleaning kit
GRAN: High-speed mini grinder

Please contact us for more information and a quotation

 

 
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© 2008 Celsum Technologies Limited
Registered in England & Wales, No 4769781
: VAT Registration No: GB 812 8796 04
Registered Office: The Innovation Centre, De Montfort University, 49 Oxford Street, Leicester LE1 5XY, UK
Page last updated 8 June 2008 : Specifications subject to change without notice : E & OE

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