GYRALGRINDER® SAMPLE COMMINUTION GRINDER
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. The GyralGrinder is ergonomically designed for operator comfort and easy access to the working chamber and controls.
EASY ACCESS TO CONTROLS
All operating controls are located within easy reach on the lid. A single push button switch turns the unit on or off. The programmable solid-state electronic timer has a large LED display for elapsed time and audible alarm for alerting completion of the comminution cycle. A rotary switch controls the intensity of impact.
USER-FRIENDLY OPERATION
The control lid lifts upward and toward the rear. It is supported by two gas compression springs. A safety switch automatically disengages the unit if the lid is inadvertently opened. Two safety latches firmly locks down the control lid during operation.
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 the handle up to disengage locking mechanism allowing the entire arm assembly to swing out of the way toward the rear of the chamber.
The Intensity of Impact Control rotary switch is numbered from 1 through 10, with 10 representing the greatest intensity of impact. This control allows for the comminution of a wide range of sample materials extending from soft to very hard. It provides a means to minimize the introduction of transition element contamination to the sample and wear to the grinding vessels.
COMMINUTION VESSELS FOR GYRALGRINDERS
Hardened steel, tungsten carbide and zirconia comminution vessels are configured specifically to function with the GyralGrinder clamping mechanism. The dishes incorporate an upper ridge for ease of handling and the lids have a central depression for self-alignment and fixation in position.
Clamping mechanism swings backwards and out of the way for full access to comminution dish.
Single level clamping mechanism firmly locks comminution dish in position.
| CAT. NO. | EXTERNAL SIZE | INTERNAL SIZE | CAPACITY | WEIGHT |
|---|---|---|---|---|
| Stainless Steel | 6.4"D; 2.5"H | 1.83"H x 5.69"D | 360 cc | 17 lbs |
| Tungsten Carbide | 6.4"D; 2.5"H | 1.76"H x 5.18"D | 290 cc | 21 lbs |
| Zirconia Ceramic | 6.4"D; 2.5"H | 1.76"H x 5.18"D | 290 cc | 11 lbs |
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 disengage 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.
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 | 2.5" x 6.4" | 17 lbs |
| 5060 | Tungsten Carbide* Comminution Dish | 2.5" x 6.4" | 21 lbs |
| 5070 | Zirconia Ceramic Comminution Dish | 2.5" x 6.4" | 11 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.
