Gyralgrinder® Sample Comminution Grinder

TECHNICAL REPRINT

GyralGrinder: A Comminution Device for X-Ray Spectrochemical Analysis

GyralGrinder® powdered sample grinder reduces innumerable types of samples to a uniform particle size, shape and distribution for XRF analysis in just minutes. The grinding process is extremely energetic, fast and thorough.

Uniquely engineered gyral-mechanics impart a controlled imbalanced condition to the grinding dish containing a sample substance. The components of the grinding dish, a puck and ring, energetically strike and crush the sample while continuously encouraging the particles to intermix with each other. Ergonomically designed for easy access to working chamber and controls.

User-Friendly Grinding Dish Clamp

The comminution dish firmly clamps in position using a single one-hand operated lever that also swings away for full accessibility to the sample chamber. A self-locking mechanism is designed into the lever that prevents the dish from dislodging during operation. Simply pull out on the knob and lift up to disengage locking mechanism allowing the lever to swing to either side.

Intensity Of Impact Control

Variable intensity of impact control provides a means to minimize the introduction of transition element contamination to the sample and wear to the grinding dish. It also allows for the comminution of a wide range of samples extending from soft to very hard.

Easy Access to Controls

All controls located in swing-up lid permitting close and easy access to sample chamber. Ergonomically designed for operator comfort. Programmable solid-state electronic timer has a large LED display for elapsed time. LED and audible alarm alert completion of the comminution cycle. Includes: acoustical lining, locking latches, leveling legs, gas springs, safety features and heavy gauge steel construction. CE certified.

Standard Attributes

  • CE certified
  • Variable Intensity of Impact Control extends range of processing different types of samples
  • Reduces grinding dish wear and transition element contamination to sample
  • Digital programmable timer with LCD display ensures highly accurate and reproducible cycles
  • Cycle completion alarm and LED light
  • Single lever grinding dish-locking mechanism facilitates sample introduction and removal
  • Sound abatement throughout reduces noise level
  • 3/4 horse power DC motor resists wear and generates virtually no heat
  • Solid-state motor control and integrated AC to DC converter
  • Heavy gauge steel cabinet and gas springs support lid for unobstructed working chamber access
  • Single moving part engineering for virtually service-free operation
  • Ergonomically designed for operator comfort
  • Safety features disconnect operation when lid or service panel is opened

Typical Applications

  • Catalysts
  • Cement
  • Chemicals
  • Clinkers
  • Coal
  • Coke
  • Concrete

  • Ferro-alloys
  • Fertilizer
  • Fluxes
  • Glass
  • Iron ores
  • Limestone
  • Minerals
  • Pesticides
  • Ores
  • Raw Mix
  • Refractories
  • Rocks
  • Sand
  • Sinters
  • Slags
  • Soil
  • And many other substances requiring uniform particle size reduction, configuration and distribution for homogeneous XRF samples in reduced time and effort.

TYPICAL GRINDING TEST RESULTS WITH CHEMPLEX GYRALGRINDER®

SUBSTANCE INITIAL SIZE INTENSITY OF IMPACT WT. % PASSING THROUGH 44 MICRON SCREEN GRINDING TIME, MINUTES
Asbestos Fibers High 100 9
Cement, Portland > 60 mesh Moderate 100 1
Ferro-chromium > 100 mesh High 100 3
Ferro-manganese > 200 mesh High 100 2
Ferro-molybdenum < 80 mesh High 100 3
Ferro-niobium < 80 mesh High 100 2
Ferro-silicon < 80 mesh Moderate 100 3
Ferro-titanium < 80 mesh Moderate 100 4
Fiberglass Fibers Moderate 100 1
Fluorspar > 100 mesh Moderate 100 2
Glass, soda lime Chunks Low 100 3
Graphite Fibers Low 100 1
Oil Shale > 60 mesh Low 100 2
Phosphate 5 mm Low 100 1
Silicon dioxide < 10 mesh Moderate 100 1
Slag, blast furnace Chunks High 100 4

Note: Materials processed with GyralGrinder, Cat. No: 5000, and Hardened Steel Grinding Vessel, Cat. No: 5050.

Note: The information described is intended as a guide in illustrating the potential performance of the subject devices and does not represent or imply a sample preparation procedure. Judicial independent testing and empirical investigation of individual samples to singularly or in conjunction with other techniques or devices to evaluate and determine the most appropriate operating conditions are recommended.

Select From Hardened Steel, Tungsten Carbide, and Zirconia Ceramic

Specifications and Ordering Information

CATALOG NO. DESCRIPTION DIMENSIONS WEIGHT
5000 GyralGrinder® with Intensity of Impact Control 24"x 24" x 43" 446 lbs
5050 Hardened Steel Comminution Dish 2½ x 6½" Dia. 17 lbs
5060 Tungsten Carbide* Comminution Dish 2½ x 6½" Dia. 21 lbs
5070 Zirconia Ceramic Comminution Dish 2½ x 6½" Dia. 10 lbs

Specify electrical requirements. 115VAC/60HZ or 230 VAC/50, 60 HZ.

*This material is prone to fracture and is supplied without any warranty expressed or implied.

Order Now