BSeries

Bench Mounted General Purpose 2200°F (1200°C) Electric Box Furnaces


Type Bench
Power Source Electric
Loading Front
Uniformity AMS Class 6 (± 50ºF / 28ºC)
Atmosphere Air
Lining Brick

Applications

Description

The B86 Bench furnace is an excellent general purpose bench mounted box furnace. The door is a simple horizontal single pivoted door with a clamping latch. Elements are located on the sides in two element plates. The furnace features a digital PID tuning control for automatic temperature control. It reaches 2000ºF (1100ºC) with nickel-chrome elements. The B86 is designed to provide a quality furnace at an economical price.


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Markets

Standard Model Sizes

Our most popular model sizes are listed below. Discuss a custom solution that fits your exact needs by contacting our sales team today.
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LOCKED BY MODEL
Model
#
Working Dimensions
W
H
D
Outside Dimensions
W
H
D
Std Power
(kW)
Max Load
(Lbs)
Ship Weight
(Lbs)
B86
8
6
16
40
24
36
4 75 250

Additional Features

SINGLE PIVOTED HORIZONTAL DOOR
The furnace door is a single pivoted horizontally opening door with a heavy duty hinge mounted on the left. A De-Sta-Co latch closes the door tightly. There is a 1/2” refractory plug which protrudes into the furnace chamber and provides an effective heat lock. There is a 2” refractory to refractory seal around the perimeter of the door.
CERAMIC HEARTH INCLUDED
The standard hearth is a 3/4” thick ceramic plate elevated on ceramic standoffs 1/2” above the bottom firebrick. This air space aids uniformity. The hearth is 8” wide by 16” deep.
DIGITAL PID CONTROL SYSTEM
The standard control is a Honeywell UDC 2500 digital PID 3 mode tuning control. All contactors and controls are located in a side mounted NEMA 1 panel. Power control is with mechanical power contactors. The thermocouple is Type K. Thermocouple break protection is included. Limit switches shut off furnace power if the door is opened or the power panel back is removed. Customer must connect fused power supply to panel. In addition, there is a separate 120 volt power supply with supplied plug for the controls.
GOOD TEMPERATURE UNIFORMITY
The temperature uniformity is +/-50F (+/-27C) when measured 2” in from all corners. Uniformity is +/-20F (+/-11C) within 12” space front to back (5” from front and 1” from back.)
TESTING AND INSTRUCTIONS
The furnace is power tested to insure proper watt ratings. The controls are fully calibrated and the control system completely tested. A complete instruction manual includes easy start up instructions, theory of operation, maintenance instructions, parts list, general dimension drawing, general assembly and subassembly drawings where required, and a detailed trouble shooting guide. A ladder logic diagram and panel layout are prepared on CAD for easy readability.
WARRANTY
The furnace is warranted for one year except for elements and thermocouples which are warranted for six months. See warranty sheet Q12W.
FAST HEAT UP:
Heats up to 2100 Deg F in less than one hour at 240 volts, less than 2-1/2 hours at 208 volts.
EFFICIENT MULTILAYERED INSULATION
The furnace is insulated with 2-1/2” of low K factor refractory firebrick as the primary insulation. This is backed up by 2” of very low K factor mineral wool board on all surfaces except the bottom which has 2” of hard calcium silicate back up for solid hearth support. This yields an excellent combination of strength, insulating quality and fast heat up and cool down time. All refractory is coated with a special facing that prolongs firebrick life and helps prevent spalling and dusting. The refractory sections are available completely shaped for easy replacement without cementing. All sections fit together with engineered heat locks which improve the insulating integrity of the furnace. No asbestos is used.
HEATING ELEMENTS AND CERAMIC ELEMENT HOLDERS
Standard elements are coiled iron-aluminum-chrome alloy. The elements are supported in element plates along the sides. These provide perfect support for the coiled element as well as excellent radiating characteristics. The smooth surface prevents premature failure of the element as it expands and contracts. Nickel-chrome elements are optional.
HEAVY DUTY BENCH MOUNTED CASE
The furnace case is constructed of 10, 14 and 16 gauge steel with stiffeners. The entire case is primed with 800F silicone paint and finished in machine enamel. Lifting rings are provided.

Additional Options

2200F (1200C) OPTION
Iron-Aluminum-Chrome alloy elements are used instead of nickel-chrome.
ANGLE IRON FLOOR STAND
Hearth level is approximately 32” from floor with this stand.
CONTROL, RECORDER AND ELECTRICAL OPTIONS
CONTROL, RECORDER AND ELECTRICAL OPTIONS
OVERTEMPERATURE SYSTEM
Honeywell UDC 1200 digital high limit back up control with manual reset, back up contactors and separate thermocouple.
SEALED CASE FOR INERT ATMOSPHERE
Case is sealed and inert atmosphere is introduced into the furnace chamber and through the element connection area. A flowmeter/regulatoror inert gas flow panel is provided.
SOLID STATE CONTACTOR(S)
For faster cycle times, longer contactor life, and quieter operation
VENT HOLES
Various diameter vent holes with or without ceramic plugs are available per special request.

Downloads

Brochure For B86
Photo Sheet For B86