Gold Testers and Purity Analyzers
Overview
Qualitest supplies density calculation instruments that operate on the hydrostatic specific gravity principle formulated by Archimedes, serving precious metal businesses across the United States.
Rather than rubbing valuable inventory against an abrasive touchstone or placing harsh acid drops onto fine jewelry, you balance the target item in open air and then lower it into an integrated water container. An internal processor compares dry mass against buoyant water displacement, presenting a straightforward karat level and purity percentage in moments.
This non-destructive evaluation preserves the condition and resale value of precious metals circulating through the American marketplace, from antique estate jewelry to cast bullion bars. By checking the internal density of the entire item rather than just reading surface plating, these instruments help domestic assayers, storefront pawnbrokers, and commercial jewelry buyers confirm alloy authenticity and spot thick gold plating over cheaper base metals without drilling or cutting into the specimen.
Key Features
- Non-Invasive Hydrostatic Density Measurement: The system establishes purity ratings from K9 up to K24, low threshold alerts, and 99.9% purity marks directly from specific gravity readings. Because you avoid chemical testing drops and files, finished jewelry popular in the US market keeps its original luster without surface scratches, acid burns, or structural flaws.
- Weighing Spans from Small Castings to Heavy Ingots: Available hardware accommodates sample masses between 0.001 grams and 3,000 grams. The GKS-300 evaluates delicate jewelry pieces as light as 2 grams using a 0.001 g/cm³ density resolution, while the high-capacity GKS-3000 handles larger commercial bars, bullion bricks, and ornamental statues weighing up to 3 kilograms.
- Dedicated Multi-Alloy Testing Modes: Beyond standard gold karat tiers, select models feature built-in analysis programs for white gold, platinum (Pt600 through Pt1000), and silver. This flexible programming allows you to verify stamped hallmarks and detect composite "sandwich" items without working through conversion tables by hand.
- Fast Test Verification Cycles: The GKS-300 completes density determinations and purity calculations in approximately 20 seconds, helping US loan intake staff and receiving counters assess incoming scrap lots efficiently.
- Thermal Offsets and Material Customization: The GK-300 provides adjustable parameters that let you compensate for shifting water temperatures in the tank and enter custom specific gravity benchmarks for specialized casting blends.
- Draft Shields and Calibration Weights: Hardware configurations include or support sealed airtight windshield enclosures to block stray room currents from shifting precision weight sensors. Included calibration weights with models like the GK-300 and GKS-300 allow you to check scale accuracy before starting daily valuation work.
Product Applications & Operating Environments
Precious metal businesses across the country rely on a dependable gold purity tester to safeguard daily transactions and eliminate guesswork when purchasing unknown scrap lots.
- US Jewelry Showrooms and Appraisal Counters: Gemologists inspect estate jewelry, custom cast mountings, and retail rings. Because our gold analyzer options skip scratch tests and acids, valuable showroom pieces retain their unblemished physical condition.
- American Pawn and Collateral Lending Shops: Lending managers screen for hollow items, under-karated scrap, and gold-clad tungsten bars. Fast density checks give loan officers confidence in collateral authenticity before extending loan funds.
- Domestic Scrap Metal Recyclers and Refining Facilities: Intake operators place whole batches of scrap gold into the testing water to calculate overall average purity values before beginning the melting process.
- Commercial Banking Institutions and Bullion Vaults: Financial operations handling substantial bars and ingots up to 3 kilograms utilize high-capacity metal testers like the GKS-3000 to authenticate stored precious metal assets without taking core drill samples.
- Foundry QC and Casting Facilities: Casting technicians deploy the GK-300 to monitor density consistency across batch runs, identifying internal porosity and alloy variations before products ship to retail clients.
Operating Environment Considerations
These instruments are built for stable, indoor benchtop environments connected to standard 100–240V AC electrical outlets. Because hydrostatic balance readings can register minute room vibrations and moving air currents, appraisal stations and testing counters in US facilities should operate the equipment with the provided or optional airtight windshield enclosure in place to screen out ventilation breezes from commercial heating and air-conditioning systems.
