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Hardin HD-234SS 70 oz Stainless Steel Tabletop Melting Furnace with 2kg Crucible 110 Volt 1.5KW

  • $399.99 USD
Shipping calculated at checkout.

Brand: Hardin


  • 2 kg / 70 oz melting capacity | Power 110 Volt 60 Hertz
  • Melting Capacity: Gold - 2 kg / 70 Troy oz | Roughly 29 minutes to 1200°C/2192°F
  • Continuous running 4 ½" cooling fan
  • Includes:
  • Graphite Crucible (2kg), Tongs, Gloves, Extra Thermocoupler, Extra Fiber Board (crucible sits in)

Publisher: Hardin

Details: Made with world leading 14 gauge Swedish Kanthal industrial heating elements. The HD-234SS is automatic and features a microprocessor PID control. This allows for extremely precise melting temperatures of metals such as high-karat gold, silver, copper, brass, and bronze. The electronic feature regulates the temperature by providing full power input to the furnace until a selected temperature is attained. While this is happening though the high capacity 4 ½" continuous running cooling fan is keeping the electronic components cool and below a safe operating temperature for a smooth and worry free operation. Something important to note, usually when you set temperatures, especially when first heating up the furnace, the actual read-out and temperature reached is going to be 50-100 degrees more than what you set the furnace to. The explanation is that the inside of the furnace where the thermocoupler is situated is going to get hot first and the fastest. But the outer parts of the heating chamber, insulation, and furnace will not be so hot. What will then happen, even though the heating coil is no longer powering up and the furnace is no longer actively heating, because the rest of the furnace is "catching" up with the center and hottest part of the furnace, you will inadvertently reach higher temps than you were set for. That is perfectly normal. But eventually the temperature will come back down and stabilize and will hold to a +/- 5F. Maximum temperature is 1200°C/2192°F. Setting the temp is easy. It requires you to "set" the desired temp twice. Plug the unit in. The fan will turn on. You then flip the on switch. Using the "down" button take the digital display's number to the temperature you want to set to.

UPC: 645710006661

EAN: 0645710006661

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209 reviews

Shipment arrived on time and as ordered.

La Crosse Technologies V10-TH

The La Crosse V10-TH Wireless Weather Station (Model No. C84343) is absolutely wonderful. The setup was easy with the Quick Setup Guide provided with the unit. The packaging contains additional support information with the website and phone number if there are questions. I especially liked the daily high low readings and the color on the unit! Tech Instrumentation provided great communication as to the availability of the product and shipping details. If fact, it arrived one day prior to the estimated delivery date. I would absolutely recommend this product and Tech Instrumentation for anyone looking for an indoor/outdoor weather station!


I needed a replacement as my original sensor no longer worked. This one works fine.

Excellent Customer Service!

I can't way enough about the customer service at Tech Instrumentation. I was looking for a hard to find specialty part, which the manufacturer told me would need to be custom made. After calling and speaking with a representative at Tech Instrumentation, the part was located and order was filled, right over the phone. Delivery was prompt, and instrument is working great. Highly recommended company for lab supplies!

Worked great

Put batteries in and worked great