L&L will be at FNA 2024! Join us in Columbus, OH at Booth #121 during FNA from October 15th - 16th.

Press Release: Order For 10 Lab-scale Box Furnaces For Precious Metal Recovery

Press Release: Order For 10 Lab-scale Box Furnaces For Precious Metal Recovery

1/25/2022 • L&L Online Team

GS1714 furnace

L&L Special Furnace has received an order for 10 model GS1714 general-purpose, bench-top lab furnaces. These furnaces will be used as part of a precious metals recovery system for a worldwide manufacturer of catalytic converters, medical devices, and pollution environment controls. The assay division recycles many parts that were originally deployed as catalytic converters for diesel motors, medical components, and electrical parts. The project is expected to be completed in the first quarter of 2022.

The precious metals are burned out of the existing product and placed in crucibles. The crucibles are heated in the L&L model GS1714 at temperatures between 1,800°F / 982°C and 2,200°F / 1,204°C. This allows any impurities in the metals to rise to the surface and be removed for further refinement.

The model GS1714 has an effective work zone of 10” high by 15” across by 13” deep. The furnace is designed to be placed on a benchtop or with an optional furnace stand. It has a Honeywell DCP50 program control and an overtemperature protection system. Solid-state relays drive the element circuit and Inconel sheathed thermocouples are included. There is a ¾" alloy outlet on top of the furnace to remove any binder or contaminates that may exist within the product. Special anti-corrosive paint helps in the harsh environment that the furnaces are required to operate. Part of the recovery process involves salt baths as well as other burnout processes located in the same vicinity as the assay furnaces.

Also available is the larger GS2026 with all of the same options as the GS 1714 but featuring a work zone of 18” wide by 12” high by 24” deep.

The model GS1714 is typically in stock at L&L and available for immediate delivery. L&L can ship even special GS1714 furnaces in about two weeks after receiving the order.

If precise temperature control and uniformity are key to your process, then L&L’s GS series is a great choice. Contact us today for more information.


We hope you found this article informative and engaging. At L&L Special Furnace, we are dedicated to providing high-quality industrial furnace solutions tailored to meet your specific needs. With decades of experience and a commitment to innovation, we strive to deliver exceptional products and services to our valued customers.

For more information about our products, visit our Series page. Need help with your current heat treating solution? Contact us today to speak with an expert who can help.

Interested in working with us?

Sometimes it is easier to talk to someone directly. Provide us basic contact information. We'll be in touch