Product Description

thisGA-8 Ultrasonic Supersonic Instrument^®Sonic sieveWith seven times the capacity, GA-6 automatic sieve provides sharp, repeatable separation of granular materials and fine powder from size 4 (4.75 mm) to 5 meters. GA-8 accepts a full height test sieve of up to 78 inches (203mm) and ASTM E11 woven metal wire cloth or ASTM E161 does not support precision electroformed grids. The unit also accepts the GA-10 ultrasonic adapter 200mm sieve tube required for ISO 565 and 33 10-1 sieve use

The screening effect is generated by 3600 sound speed pulses, which come from an audio energy generator every minute, oscillating the air column inside the sieve to stir each particle. The screening intensity (amplitude) is set by a proportional controller. A programmable ramp feature increases the amplitude to the maximum rate and maintains it, then decreases it to achieve separation. Horizontal and vertical punching machines help to close fines of similar size. The horizontal tap can be positioned on the selected sieve. Four vertical punching machines can be used as a one-to-one pair for most materials or two pairs for difficult samples.

The memory stores up to ten programs with specific amplitude, ramp, tap, and test duration settings for specific materials. The testing time varies depending on the material type and particle size. The typical screening time is 1 to 5 minutes, but the operating time can be set to 99.9 minutes.

The powder coated steel shell has a vertically hinged LeXANM door that seals the screening chamber. Closed operations reduce dust and help limit and control inhalable particulate matter in the air within the breathing zone of personnel. The sample material consists of flexible top and bottom membranes. When the upper casing containing the audio generator is lowered into place, the stack is sealed. When the test is completed, recover the fine particles from the bottom diaphragm.

The sieve is ordered separately from ASTM E11 sieve size 4 to 635 (4.75 mm to 20 meters) or ASTM E161 sieve precision electroplated mesh size 150-5 μ m, with a tolerance of ± 2 μ m. Diameter 200mm and 300mm ISO 565 and 33 10-1 screens can also be ordered and must be paired with GA-10 ultrasonic adapter 200mm screen tube

Functional Features

• Accurate separation of samples up to 100g
• Accept seven screens with a height of 8 inches or a diameter of 200 millimeters
• Fully programmable timing, amplitude, and vertical or horizontal tapping sequence can improve repeatability.
• Store amplitude, ramp, tap, and test duration settings for up to ten programs

Includes projects:

• Supersonic gold plating^®Sonic sieve
• Top and bottom screen stacking adapter
• Four membranes used at the top or bottom
• Double acrylic gasket
• A dual height acrylic screen spacer
• Twelve polyurethane mesh sealing gasket
• Screen stacking component

Accessories

• ASTM or ISO test sieves can be widely selected in terms of frame diameter and height, material, and opening size
• GA-19 ultrasonic spacer allows observation during testing
• GA-18 diaphragm sealing gasket is used together with the top or bottom diaphragm to maintain sealing
• GA-10 ultrasonic adapter group adapts to GA-8 using ISO200mm mesh
• The GA-5 sieve plate stacking component can accommodate up to seven in the test sieve or gasket
• GA-15 upper/lower diaphragm is used at both ends of the gas column to provide acoustic sealing
• GA-16 dual height spacer is used in conjunction with GA-8, providing over 3N of visible open space
• SSA-108 sieve sealing gasket is placed on the sieve plate flange to provide sample sealing or fluid loss.