SIMPLY ANOTHER ITEM BY  

You are bidding on a WONDERFUL USED CONDITION KALTEC HERCULES TS-8HV SHEAR HI SHEAR VISCOMETER as can be seen in the pictures. 

The Hercules Hi-Shear Viscometer system measures the viscosity and other flow properties of dispersions and coatings that are subjected to varying degrees of shear. Each viscometer draws the classic "Hercules Rheogram" and reports data. 

The "Hercules Rheogram" has been used for over 50 years as a reliable way to predict flow characteristics in pigment slurries and coating colors. 

The principal of the Hercules Hi-Shear Viscometer is based on the Searle method of measurement where a cylinder (bob) suspended in a liquid sample starts from rest and begins spinning to a preset rotational speed (shear rate). The spinning effect of the bob is resisted (shear stress) by the liquid surrounding it. This viscous drag causes the adjoining cup to rotate against a known resistance thus producing a torque value. The viscosity of the liquid is calculated from the torque measurement at the maximum shear rate. In addition to reporting viscosity, this instrument produces a rheogram whose shape has been used to predict flow performance of a material as it reacts to changes in shear rate. The shape of this curve indicates if a material is shear thinning or shear thickening as the shear rate changes over time. This feature separates the Hercules Hi-Shear Viscometer from other instruments that only provide single-point measurements under low shear. It produces a continuous flow of results reflecting sample reaction to increasing and decreasing shear conditions over time.

Uses for the Hercules Viscometer

• Predict coating runnability
• Incoming raw material certification, particle size distribution, pigment dilatancy, molecular chain length, and emulsion viscosity.
• Determine optimum dispersant demand.
• Relate viscosity to percent solids, pigment blends, and coat weight.

Areas of Application

Kaltec's Hercules Hi-Shear Viscometers simulate process conditions for solving production and product development problems, they have been used to test materials including, but not limited to the following:

Water-Borne Paper & Paper Board Coatings Mineral Slurries Adhesive Magnetic Particle Dispersions Resins Polymers

Paints Solvent Coatings Oils Emulsions Latexes

MEASUREMENTS WITH A HERCULES HI-SHEAR VISCOMETER CALCULATING VISCOSITY Rheological measurements with a HHSV reveal the relationship between shear rate and shear stress in the form of rheograms, which displays rotational speed in revolutions per minute (rpm) versus torque in dynes-cm (see Appendix A for converting torque to shear stress and rpm to shear rate). Such measurements are achieved with tests performed in a Couette flow, where both translational and rotational deformations occur simultaneously. (Imagine a cubical unit of the fluid which undergoes extension in one direction and compression in a directions perpendicular to the first.) Recorded rheograms contain two different flow curves (Figure 2); one representing acceleration (the "up" curve) followed by another corresponding to deceleration (the "down" curve). These curves are generated during a complete testing cycle, i.e., from zero to maximum rpm and then back to zero, with the AUTO mode of the instrument. Rheograms supply sufficient information to characterize non-Newtonian fluids, that is to determine the shear- and time-dependent rheology of fluids (Appendix B). A more detailed discussion about the major types of nonNewtonian fluid flows is included in the next section. 

Model TS-8HV

The Hercules Model TS-8HV is equally suited to generate precise, reproducible results demanded by R&D standards and is durable to withstand the harsh treatment of a process control laboratory. 

Product Development
The Hercules TS-8HV allows an operator the ability to determine those variables that can assist in the development of coatings which include: apparent viscosity, shear stress, leveling index, Reynolds number, mechanical energy and kinematic viscosity.

Testing Standard

The officially recognized test procedure of evaluating the viscosity of slurry pigments in North America as outlined by TAPPI (Technical Association of the Pulp and Paper Industry) is test method T-648. Hercules Hi-Shear Viscometer procedures strictly adhere to the TAPPI standard in evaluating pigments and coatings. The test is also recognized and practiced in many other regions of the world.

Official TAPPI Test Method

Technical Data

Maximum RPM	6600 (Standard) 8800 (Upgrade)
Maximum Shear Rate (sec-1)	1 to 1.38 x 105 (Standard) 1 to 1.85 x 105 (Upgrade)
Torque Range (dynes-cm)	1.0 x 104 to 1.8 x 107
Shear Stress Range (dynes/cm2)	80 to 6.0 x 105
Recommended Viscosity Range (centipoise)	1 to 4.5 x 103
Voltage	115/220 Volts (Single Phase)
Weight	136 lbs. (62 kgs.)

All pictures contained in this auction are of the actual item up for auction. Click on the pictures to enlarge them to full size.

IF you pay the asking price and find it has a problem you cannot live with within 14 days of receipt you may return it.  Returns are ONLY allowed on Buy It Now Purchases.  Accepted Best Offers are strictly an as is sale, no returns allowed.  Return would be for a refund of the purchase price, not including shipping costs, which may be substantial.

.Other than what's displayed in the images accompanying this listing or mentioned in the description above, there are no manuals, instructions, additional parts or accessories.
Please do not assume something is included. If you don't see it, then it's not included. 

• DISCLAIMER: Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by bidding on this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer.

TO CHECK OUR EBAY STORE FOR OTHER ITEMS

 ! MAY THE GOOD GOD ILLUMINATE US ALL!!!