Compact Medium to High Temperature
Infrared Thermal Processing Furnace
With basic models priced under $45k, the LA-306 is a low cost compact furnace ideal for processing dental lab and small dental facility production work. The small 6-inch wide chamber offers excellent temperature control and rapid rise to 1000 degrees *C*.
High Temperature Oven and Furnace
with Nitrogen process gas flow
This is a true near-infrared furnace. Process atmosphere is controlled using nitrogen process gas forced through the heating chamber insulation providing a preheated, laminar flow to create a uniform, stable atmosphere ideal for drying or sterilizing in a continuous process in an industrial or clean room environment.
Process Reliability and Repeatability
Precise temperature is maintained by control thermocouples above the belt in each zone quickly sensing changing conditions.
IR quartz heating lamps inside the chamber instantaneously
adjust their output to achieve tight temperature control.
Each load through the furnace sees the same temperature profile.
The furnace is operated via individual digital PID controllers
to control the temperature in each zone.
For efficiency and smooth control, phase-angle fired SCR’s
are used to power the lamps.
Dental Laboratory Applications
The LA-306 Dental Lab Furnace can process castings, substrates,
wafers, metal, ceramic, glass, titanium and porcelain,
or polycarbonate parts for dental bonding,
Polymer Curing, Hybrid/Thick Film Firing,
titanium porcelain veneering,
and General Thermal Processing and sintering applications.
In addition, these furnaces can be applied to tempering,
annealing, hardening and quenching, solution annealing,
forging, curing, preheating, drying, ageing applications
on a continuous basis in an atmosphere controlled environment.
|Load Station||38 cm
|Entrance Isolation Baffle with Venturi Exhaust||38 cm
|IR Heating Chamber, Zone 1||
|IR Heating Chamber Zone 2||38 cm
|IR Heating Chamber Zone 3||19 cm
optionally with Venturi Exhaust
|Unload Station||38 cm
Specifications for LA-306N Compact Dental Production Furnace
NEW! THREE PHASE MODELS NOW AVAILABLE
|Process Gas||Nitrogen N2|
|Control Zones||3 Zones|
|Heating Chamber length||76 cm (30 inches)|
N2 convective and radiant cooling, exterior fan heat removal.
|Belt Speed||10-500 mm/min (0.5-20 ipm) or 25-1000 mm/min (1-40) ipm (other speeds available)|
|Conveyor Belt||BNV- low mass, stabilized Nichrome-V|
|Exhaust||Improved venturi exhaust stacks to reduce process gas consumption. Number of stacks vary with process requirements.|
|Temperature Capacity, max||1000 degrees *C*|
|Electrical||Single phase design.
All models include universal transformers
which accommodate 208-240 Vac and 50/60 Hz frequency
anywhere in the world, allowing furnace relocation
without external equipment.
IR lamp controls automatically
keep IR spectrum constant.
|Parameter||LA-306N||Standard Power||Hi Power|
|Operating Current |
as a function
50 Hz /60 Hz
|Parameter||Process Section||Typical (exchange rate 2.0x)|
850 degrees *C*
with balanced flow
|Typical (exchange rate 2.6x)
850 degrees *C*
25 Lpm excess for Low O
|Process Gas Supply||Nitrogen||84 Lpm@5 bar|
|Process Gas Exhaust||Nitrogen||84 Lpm|
|Enclosure Ventilation||Furnace Cabinet Fan|
(1)vent to room
facility exhaust system
30 degrees *C*
86 degrees *F*
|Control Cabinet Fans (2)vents to room||360 m3/hr
30 degrees *C*
86 degrees *F*
|Adjustable Conveyor Height||9144 mm
+/- 3836 inch
LA-306N Furnace Standard Features and Options
Popular options include the following:
|Nitrogen Operation (std on Dental furnace)|
|Output sensor & chime for emerging parts|
|Coalescing Air Filter & Regulator|
|Load table extension (adds 15″ to length)|
|Unload table extension (adds 15″ to length)|
All standard models (except LA-306 series and “P” models) include a RAID1 computer with LCD screen, full size keyboard interface
and both Ethernet and wireless-N high-speed network connections to facilitate view
and control of the furnace by managers and process engineers from any location.
Four (4) local USB ports are provided, convenient for connecting a furnace profiler and jump drive storage devices.
The new “P” series replaces the computer control system with high quality discrete digital controllers
for cost-effective precision control on repetitive production applications.
These furnaces are a good solution in applications where process recipes are changed infrequently and auxiliaries are at a minimum.