Ashing Box Furnace with Integrated Control System (1100°C)

Product Overview

The XSB ashing furnaces are designed to provide ideal conditions for complete combustion of test samples. They have a hinged vertical lift door that keeps the hot door insulation always facing away from the operator. A door safety switch interrupts power to the heating elements when the door is opened.

These furnaces use wound wire heating elements that are protected by hard ceramic plates. The furnace chamber, heating elements, hearth plate and chamber threshold are designed to be easily replaced if they become worn out.

An air gap between the heated chamber exterior and furnace exterior surface is designed to minimize the external surface temperature of the furnace.


Due to the size and weight of these products, they will ship Freight/LTL. If you would like to arrange your own shipping, please choose the “Local Pickup” option at checkout.



  • 1100°C maximum operating temperature (continuous operating temperature is 100°C below maximum temperature)
  • Perfect for ashing petrochemicals, coal, food, plastics and other hydrocarbons
  • Conforms to ASTM specifications D874, D482, D5184, D3174 and ISO specifications 3987, 6245, 10478, 1171
  • Air is preheated before entering chamber
  • Air inlet and exhaust chimney provide 6 air changes per minute
  • Optional air flow metering allows for 2-10 air changes per minute
  • Thermcraft SmartControl touch screen PID control system (see control system descriptions)
  • Long life inconel sheathed Type K thermocouple
  • Heated chamber volume up to 40L
  • 10′ (3m) power cables
  • Furnace and controller ship fully assembled and ready for connection to incoming power supply


  • The SmartControl can be upgraded to include profile programming, data acquisition and communications. These options can be purchased individually or separately and can also be purchased as an upgrade after the unit has been shipped and installed
  • Adjustable air flow meter to reduce or increase air flow rate
  • Sample trays and crucibles
  • Eurotherm 2404 series controls and communications upgrades
  • Custom options and upgrades available upon request, such as output control of external devices, actuators, flow controllers, etc. (extends delivery time)

SmartControl Standard Controller

The SmartControl System combines all of the features of typical PID controllers, video/chart recorders and data logging systems into a single, intuitive device. The SmartControl provides a 4.3” color touch screen interface with standard, user configurable, runtime features for 1-3 zone control applications. All loop configuration and runtime user access is configurable at the device with no PC software required. SmartControl supports 1-3 control zones, offering up to 4 control outputs per zone, powerful profiling capabilities including up to three event outputs and more.

Integrated LAN features include e-mail, SMS (text messaging) on alarm, FTP (file transfer protocol for automated file transfer/data backup), remote access (web and VNC embedded servers) and national timeserver time synchronization are standard. The web and VNC servers allow remote access using a PC, tablet or other smart phone devices.

If you can use a “smart device” (iPhone, Android, etc.), you can use SmartControl!
User configurable with “slide nav” finger navigation similar to “smart devices” or with a traditional drop down menu system, SmartControl is intuitive to operate and use. With one touch language configuration for all icons, menus and help screens, SmartControl provides ease of use in any one of 28 languages.

Optional Eurotherm 2404 Series Controllers

These 1/4 DIN size PID controllers offer up to 64 segments of programmable control. Each program segment can be a ramp, step or dwell.

  • 2404CC offers 8 programmable segments
  • 2404CP offers 16 programmable segments
  • 2404P4 offers 4 programs with 16 segments per program

The 2404 series controllers can be upgraded to include EIA485 2-wire, 4 wire or EIA232. With industry-standard protocols including: Modbus, DeviceNet®, Profibus DP, and Eurotherm® Bisync

ModelMax Temp
Heat ZonesHeat Up Time
in. (mm)
Furnace External Dimensions
in. (mm)
Height with Door Open
in. (mm)
Max Power
couple Type
lbs (kg)
32 (813)250023011K88 (40)
38 (965)350023016K132 (60)
44 (1118)600023026K176 (80)

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