EXTRUSION LINES AND ACCESSORIES -- OVERVIEW

• WHAT'S DIFFERENT ABOUT HARREL EXTRUSION SYSTEMS -- TOTAL CONTROL -- DIGIPANEL^® control for a single line -- plant-wide controls for multiple lines.
  
  
• TURN-KEY EXTRUSION LINES -- Harrel tubing, bump tubing, co-extruded tubing, and profile systems.
  
  
• PLASTIC EXTRUDERS, GEAR PUMPS, AND GEARTRUDERS^® Precision equipment for melting, mixing, and conveying plastic.
  
  

EXTRUDERS AND SCREWS

• HARREL "COUGAR" SERIES EXTRUDERS Rugged and reliable plastics extruders using conventional discrete temperature controllers.
  
  
• HARREL "BOBCAT" SERIES EXTRUDERS. Rugged and reliable workhorse extruders.
  
  
• HARREL "TIGER" SERIES EXTRUDERS. Hi-Tech Extruders with sophisticated DIGIPANEL^® controllers: full color displays, full graphics, and capability of TOTAL line control.
  
  
• EXTRUDERS FOR MICROBORE TUBING or for thin layers in any coextrusion application.
  
  
• GENERAL PURPOSE AND MIXING SCREWS. For extruders of any manufacturer.
  
  

GEARTRUDERS^® -- Extruders with integrally mounted gear pumps.

• HARREL "BOBCAT" SERIES GEARTRUDERS^(R) -- a rugged BOBCAT extruder plus a precision gear pump and a CP-644 DIGIPANEL^® controller. An excellent workhorse unit!
  
  
• HARREL "TIGER" SERIES GEARTRUDERS^(R) -- Same rugged and reliable extruder and precision melt pump as BOBCAT series, but with sophisticated CP-875 DIGIPANEL^® controllers: full color display, and capabilities for TUBETROL^(R), PIPETROL^(R), etc. TOTAL control of extrudate dimensions. Screw also has spiral Maddock and Saxton mixers.
  
  
• HARREL "TIGER-PLUS" SERIES GEARTRUDERS^(R). -- All the capabilities of the TIGER series, but with direct drive for higher efficiency and reduced maintenance.
  
  
• EXTRUDERS AND GEARTRUDERS^(R) FOR MICROBORE TUBING or for thin layers in any coextrusion application.
  
  

MELT PUMP SYSTEMS

• STABILIZE EXTRUDER THROUGHPUT TO 0.1% USING A PRECISION MELT PUMP. Why a melt pump should be used in any precision application. For best accuracy differential pressure across the pump should be controlled, and of course RPM should be controlled to 0.001% with a Harrel DIGISYNCH^® system.
  
  
• MELT PUMPS FOR EXTRUSION A complete line of melt pumps for extruders -- from 0.14 cc/rev to 50 cc/rev. Special pumps for PVC and for fluoropolymers. DUOSTREAM melt pump gives two identical melt streams, each stabilized within 0.1%.
  
  
• UPGRADE AN EXISTING EXTRUSION LINE WITH A PRECISION MELT PUMP for 0.1% throughput stability. Complete upgrade package includes melt pump, adapter flange, drive motor, gear reducer, and controls. Differential pressure controller, DIGISYNCH^® melt pump speed controller to 0.001%, and precision temperature controls for melt pump and flanges are mounted in a convenient sloping front cabinet.
  
  

TUBING AND PROFILE EXTRUSION SYSTEMS

• TUBETROL^(R) TURN-KEY TUBING EXTRUSION LINES. Totally automated Turn-key tubing systems. TUBETROL provides automated control of OD, ID, and length of straight tubing. BUMP TUBETROL, DOUBLE BUMP TUBETROL, AND TRIPLE BUMP TUBETROL give totally automated control of OD, ID, and length of each level. Single lumen or multi-lumen. Why would anyone ever want to control a tubing line manually, when TUBETROL automated control is available at the same or lower cost?
  
  
• HARREL HI-TECH ALTERNATE POLYMER TUBING LINES Start out with 100% polymer A and change seamlessly to 100% polymer B and back again!
  
  
• LIGHTSOUT EXTRUSION LINES. 3-shift operation with 2-shift staffing!
  
  
• SINGLEPASS EXTRUSION SYSTEMS -- Eliminates separate compounding operation. Combines precision turn-key tubing or profile lines with compounding of multiple components equal to performance of twin screw extruder!
  
  

ACCESSORIES FOR TUBING AND PROFILE EXTRUSION LINES

• OVERVIEW OF EXTRUSION ACCESSORIES -- Tubing Dies, water troughs, vacuum sizing tanks, ROLLERPULLERS, NOCLUTCH Cutters
  
  
• EXTRUSION INSTRUMENTATION FOR TUBING OR PROFILE LINES -- Temperature controllers, multizone temperature controllers, laser diameter gauges, pressure controllers.
  
  
• TEMPERATURE SENSORS --A complete line of the highest precision platinum RTD sensors for control of plastics extruders and accessory equipment. Also includes surface and immersion sensing and sensors for general purpose applications.
  
  
• STERILE AIR SUPPLIES FOR TUBING EXTRUSION -- Precision sterile air supplies for internal air, removal of water, and conveyor blow-off.
  
  
• PRECISION TUBING AND PROFILE DIES -- Standard and SPIRODIE construction. In-line and crosshead dies for straight tubing, bump tubing, single or multilumen tubing, and single layer or coextruded tubing. SPIRODIE eliminates weld lines caused by spider in die.
  
  
• PRECISION MELT PUMPS FOR TUBING OR PROFILE EXTRUSION -- 0.14 cc/rev through 50 cc/rev, single strand or DUOSTREAM^(R) for virtually any polymer, including PVC and fluoropolymers.
  
  
• MELT PUMP CONTROLLERS Stabilization of extruder throughput to 0.1% using a precision melt pump with differential pressure controller.
  
  
• HI-TECH VACUUM TANKS FOR TUBING OR PROFILE EXTRUSION -- High precision control of vacuum holds dimensions to very close tolerances.
  
  
• HIGH PRECISION WATER COOLING TROUGHS FOR TUBING OR PROFILE EXTRUSION LINES -- Standard troughs, spray troughs, and 30/10 triple-pass water cooling troughs for 30 feet of cooling in 10 feet of length.
  
  
• PRECISION HI-TECH PULLERS AND CUTTERS -- For tubing and profile. ROLLERPULLER gives much more uniform puller speed than belt puller. NOCLUTCH cutter eliminates clutch in older type cutters and greatly improves accuracy and life.
  
  
• PRECISION LASER GAUGES SPECIFICALLY DESIGNED FOR STATISTICAL QUALITY CONTROL. Single scan measurement gives true values of sigma (Most gauges average readings and give incorrect values of sigma.)
  
  

UPGRADES FOR EXISTING TUBING AND PROFILE LINES

• UPGRADE YOUR EXISTING TUBING AND PROFILE LINES WITH A DIGIPANEL^(R) CONTROL SYSTEM. A complete line of upgrade packages, ranging from multizone temperature controllers up through completely integrated control systems giving TOTAL, automated control of all functions on the line, plus automated closed loop control of product dimensions.
  
  
• ADD A PRECISION MELT PUMP SUBSYSTEM TO EXISTING TUBING AND PROFILE LINES. Throughput stability improved to 0.1%, versus 5% to 10% for extruder alone. Typically increases throughput 15 -25%! Also makes possible totally automaated control of dimensions!
  
  
• UPGRADE AN EXISTING EXTRUSION LINE TO RUN BUMPTUBETROL^(R), DOUBLE BUMP TUBETROL, AND TRIPLE BUMP TUBETROL. Automated, closed loop control of OD and ID of both bump and stem of each segment -- A Harrel exclusive!
  
  

INSTRUMENTATION

GENERAL PURPOSE INDUSTRIAL TEMPERATURE CONTROLLERS.

• 1/4-DIN PLUG-IN DISCRETE TEMPERATURE CONTROLLERS and matching plug-in solid state power modules. Heating only or Heating and Cooling, Single or Dual Channel, AUTOTRIM^(R). DUOSENSE^(R). ORDER ON LINE
  
  
• MULTIZONE TEMPERATURE CONTROLLERS. Where many temperatures are to be controlled, multizone controllers are far more economical, give better performance, and offer higher reliability. ORDER ON LINE
  
  
• TEMPERATURE SENSORS -- A complete line of the highest precision platinum RTD sensors -- bayonet style, surface, and immersion styles for plastics equipment or general purpose industrial equipment. ORDER ON LINE!
  
  

MOTOR DRIVES & MOTOR SPEED CONTROL

• MOTOR DRIVES & MOTOR SPEED CONTROL. Digital drives to 250 HP.  DIGISENSE® gives 0.5% accuracy and stability.  DIGISYNCH® controls for Harrel drives, or for upgrading drives of any manufacturer, control to 0.001%.  1/4 DIN DIGISYNCH modules bring drives of any manufacturer to 0.001%.  1/4 DIN DIGISYNCH modules give exact synchronization of speed of any number of motors -- 0.000% steady-state synchronization error!
  
  

VISCOSITY MEASUREMENT AND CONTROL.

• THE VISCOTRUDER A rheometer which measures apparent viscosity and intrinsic viscosity under real-world extrusion conditions -- because measurements are made in an actual extruder!
  
  
• Harrel VISCONVERTER converts any 1" Harrel GEARTRUDER^® into a precision VISCOTRUDER capable of viscosity measurements made under true real world conditions because measurements are made using an actual extruder!
  
  
• Patented Harrel VISCONTROL system. For control of viscosity in an operating GEARTRUDER^® Especially important with highly variable polymers like polyurethane.
  
  

SPECIALTY INSTRUMENTATION

• Harrel Length Controller controls extrudate length between any two events on an extruder of any manufacture.
  
  
• Harrel Melt Pressure Controller. The preferred method of stabilizing the throughput of an extruder is to use a melt pump with it. If for any reason this is not practical, controlling the pressure at the die will go a long way toward stabilizing the throughput.
  
  

UPGRADES TO IMPROVE PERFORMANCE OF EXISTING EXTRUSION LINES OF ANY TYPE

• UPGRADE YOUR EXISTING LINES WITH A DIGIPANEL^® CONTROL SYSTEM. A complete line of upgrade packages, ranging from multizone temperature controllers up through completely integrated control systems giving TOTAL, automated control of all functions on the line, plus automated closed loop control of product dimensions.
  
  
• ADD A PRECISION MELT PUMP SUBSYSTEM. Throughput stability improved to 0.1%, versus 5% to 10% for extruder alone. Typically increases throughput 15 -25%!
  
  

STATISTICAL QUALITY CONTROL

• STATISTICAL QUALITY CONTROL SYSTEMS -- Plant-wide, for control, management, and SQC of an entire plant full of plastics machinery. Also single line SQC modules for a single extrusion line.
  
  

CUSTOMER SUPPORT, TRAINING COURSES, AND SEMINARS....

• CUSTOMER SUPPORT -- A Statement of Policy.
  
  
• SERVICE CONTRACTS AND ON-SITE TRAINING for Harrel Extrusion Systems. You undoubtedly have a yearly service contract on your copy machine and your furnace. Why not on your extrusion equipment? REGISTER ON LINE
  
  
• OPERATOR TRAINING COURSES FOR HARREL TUBETROL^(R) automated tubing extrusion systems -- at Harrel! REGISTER ON LINE
  
  
• MAINTENANCE TRAINING COURSES FOR HARREL SYSTEMS Training in the maintenance of Harrel automated tubing extrusion systems -- at Harrel! REGISTER ON LINE.
  
  
• Harrel EXTRUSION ENGINEERING SEMINARS by Dr. Chris Rauwendaal. A comprehensive 2 1/2 day seminar on tubing and profile extrusion fundamentals. Includes hands-on operation of an automated bump tubing line and an Alternate Polymer line in the Harrel Plastics Development Laboratory. REGISTER ON THE RAUWENDAAL SITE!
  
  

PEOPLE TO PEOPLE.

• HARREL, INCORPORATED Who are we?.
  
  
• VISITING HARREL -- Want to see more? Come visit!
  
  

• Looking for a replacement for PVC? Metallocene-catalyzed polymers show real promise. However, they have special extrusion characteristics. Take a look at the Harrel TURN-KEY METALLOCENE EXTRUSION LINES, optimized for those polymers!
  
  
• Have you ever wished that you could extrude a tube which is made from one polymer at one end and another polymer at the other end -- all without having to join two separate tubes together? Check out these new packaged ALTERNATE POLYMER systems from Harrel!
  
  

For more information, please fill out our inquiry form! We can also be reached at: