RTC -  LA-306CXX
S/N:  13008

1000ºC - Nitrogen -  3 Heating Zones
 208V 3Phase 50/60HZ

40" cooling
actory rebuilt with all new electronics

  • Production and Laboratory Applications
  • Controlled CDA, N2, and/or FG Atmosphere


    Discrete Digital Control System
  • New furnace chamber internals & cooling system
  • Special SS exit UNLOAD extension
 This special RTC LA-306 with a 38-inch UNLOAD station recently underwent complete reconditioning in the factory. 
  Factory Reconditioned RTC LA-306 IR Belt Furnaces  
  At 50-60% of the price of a new furnace, you get a furnace that can be used for another 10-15 years with an all new control system,
new furnace chamber internals and all new aircraft aluminum cooling section.
These units are fully tested to RTC oem factory specifications and are guaranteed functional for one year from date of receipt.
Compact High Temperature Infrared Thermal Processing Belt Furnace

True near-infrared furnace. 
The LA-306 is a compact high temperature production and laboratory infrared furnace.

The small 6 inch wide chamber offers excellent temperature control and rapid rise to 1000ºC.
Process atmosphere is controlled much like a clean room: pressurized gas is pushed through the heating chamber insulation
providing a pre-heated, laminar flow for a uniform, stable atmosphere.

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.

The small size and furnace chamber assures good temperature control with efficient use of power and proces gas. 
The LA-306 furnace can be configured for one gas (CDA, Nitrogen) or dual gas operation (nitrogen and forming gas).

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.

Process Applications
  The LA-306 can process substrates, wafers, PCBs, metal, ceramic, glass or polycarbonate parts for Package Sealing,
Epoxy Die Attach, Polymer Curing, Reflow Soldering, Hybrid/Thick Film Firing, General Thermal Processing, Brazing, Annealing,
Tempering and  Metal Sintering applications. 
  Furnace Arrangement  
Parameter RTC LA-306
Load Station 215 mm (8.5 inches)
Entrance Isolation Baffle with Venturi Exhaust 159 mm (6.25 inches)
IR Heating Chamber, Zone 1 168 mm (6.6 inches)
IR Heating Chamber Zone 2 363 mm (14.3 inches)
IR Heating Chamber Zone 3 168 mm (6.6 inches)
Transition Tunnel (with optional Venturi Exhaust) 159 mm (6.25 inches)
CACT Closed Atmosphere Cooling Chamber 1015 cm (40 inches)
Unload Station 215 mm (8.5 inches) /  with extension 9.78 mm (38.5 inches)

RTC LA-306 Furnace Internals
Parameter LA-306
Process Gas CDA, Nitrogen (-N), Forming Gas with premixed
Hydrogen and Nitrogen (-FG)
Control Zones 3 zones
Heating Chamber length 700 mm (27.5 inches)
Cooling Chamber CACT – CDA or N2 convective and radiant cooling, exterior fan heat removal.
Belt Speed
25-500 mm/min (1-20 ipm) or 25-1000 mm/min (2-40) ipm (other speeds available)
Conveyor Belt BNV- low mass, stabilized Nichrome-V
Belt Size, nominal width 150 mm (6 in.)
Exhaust Improved venturi exhaust stacks to reduce process gas consumption. 
Number of stacks vary with process requirements.
Temperature Capacity, max 1000ºC
Electrical Single phase design. 
All models include universal transformers which will  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.

Facility Requirements


Parameter RTC LA-306 Maximum
 Connected Power/Current
Operating Current @ 950C
Single Phase Power (opt 208 Vac, 1 ph, 50/60 Hz
220 Vac, 1 ph, 50/60 Hz
230 Vac, 1 ph, 50 Hz (EU)
 /60 Hz

240 Vac, 1 ph, 50/60 Hz
14.0 kW, 67.3
14.3 kW, 65,2
14.6 kW, 63.7
15.0 kW, 62.3
39.0 A
38.0 A
36.9 A
36.0 A
3-Phase Power 208 Vac, 3 ph, 50/60 Hz
220 Vac, 3 ph, 50/60 Hz
380 Vac, 3 ph, 50/60 Hz
415 Vac, 3 ph, 50/60 Hz
14.0 kW, 38.9
14.3 kW, 37.7
14.3 kW, 37.7
15.0 kW, 36.0
26.0 A
25.0 A
25.0 A
23.0 A
Parameter Process Section Typical (CDA exchange rate: 2x)
425 C operation, balanced flow
Typical (N2 exch rate: 3x)
950 C, low O2, 25 sLpm excess flow
Process Gas Supply     
Gas 1 80 Lpm @ 5 bar
(170 SCFH @ 70 psig)
146 Lpm @ 5 bar
(308 SCFH @ 70 psig)
Gas 2 (Heating Chamber only)
see Gas 1

33 m3/hr @ 5 bar
(69 CFM @ 70 psig)
Enclosure Ventilation Furnace Cabinet Fan (1)
vent to room or facility exhaust system
930 m3/hr @ 30ºC
(550 cfm @ 86ºF)
Control Cabinet Fans (2)
(vents to room)
360 m3/hr @ 30ºC
(212 cfm @ 86ºF)
Process Gas Exhaust Gas 1 + Gas 2 80 Lpm
(170 SCFH)
95 Lpm
(202 SCFH)
Length With 30-inch unload extension: 3.35 m (132 in.)
Width 0.46 m (18 inches)
Height 1.64 m +/- 0.0254 (62.25 inches +/- 1.0)
Adjustable Conveyor Height 965 mm +/- 25.4 (38 inch +/- 1.0)
Weight 370 kg (800 LB)
  LA-306 Furnace Standard Features and Options  
Code Description Code Description
NO Nitrogen Operation, Dual Gas (N2 & FG) OA Oxygen Analyzer
LT Process Ready Light Tower MA Moisture Analyzer
AFR Coalescing Air Filter & Regulator CB Circuit Breaker



Ready To Ship! 
This special RTC LA-306 with a 38-inch UNLOAD station
recently underwent complete reconditioning at the factory!