RTC IR Furnace Parts

RTC IR Furnace Parts


We offer low prices on OEM Parts & IR Lamps. With over 10,000 parts for RTC furnaces, we can usually find the part you need. Upgrade chamber, controls & cooling systems. New and upgraded components and many legacy boards and parts currently in stock.

All prices are Ex Works, in US dollars and do not include shipping & handling, or other transport or export fees. See Payment Method Options table for payment methods. Orders based on internet prices are subject to our Internet Terms of Sale.


Now RTC original OEM lamps are available built to your order. Factory original lamps, developed by RTC and manufactured in the USA by USHIO.

IR Lamp

These lamps perfectly match the OEM lamps in your RTC and/or LCI IR furnace. Compared to "compatible lamps" by other manufacturers, these original equipment IR lamps operate at lower temperatures at their connections prolonging the life of each lamp and reducing premature lamp failure. Suitable for all LCI and RTC IR furnaces, RTC ovens and FurnacePros and RTC dryers.

We have some lamps in stock in limited quantities. Other lamp models are available built-to-order with 4-8 week lead time. Call (949) 218-4996 or email parts@furnacepros.com for availability.

Belt Size
Part Number Description Unit Price   Qty/
6 306-019389-01*
(40 in stock)
600W / 104V each $46.00   20 $712.00
($35.60 ea)
9/10^ 306-019060-03*
(20 in stock)
900W / 216V
(Ushio 1004026)
each $64.10   20 $1024.00
15 306-019061-03*
(76 in stock)
1500W / 225V
(Ushio 1004068)
each $92.50 20 $1480.00
($74.00 ea)
24 306-019062-03*
(20 in stock)
2400W / 461V
(Ushio 1004023)
 each $99.20   10 $1568.00
(78.40 ea)
36 306-093319-36*
(in stock)
3600W / 480V
(Ushio 1003197)
each $185.00
  6 $600.00
($100 ea)
48 306-090942-01*
(in stock)
4800W / 480V
(Ushio 1002195)
each $399.00
  6 $750.00
($150 ea)
14-15 306-093735-09
1000W / 240V each 65.00 12 $780.00
9-10 306-012763-01
1000W / 240V each 30.00   1 $30.00
16 306-1001330-01
(usually 2-day lead time)
1600W / 240V
(19.8" MOL)
each $70.00   5 $342.50
(68.50 ea)
EA GE (QH2M/T3/CL/HT)* 2000W / 240V each $30.00   8 $240.00
36 306-1001393-01** 3800W / 570V each CALL   20 CALL

RTC LA-304 models require the same lamps as the LA-306 Models (pn 306-019389-01).

If not in stock, minimum order quantity 20 pcs. Factory lead time typically 6-8 weeks after receipt of payment. Call or email for latest.

^Original OEM lamps for LA-309, LA-310, PV-609 and all RTC 9, 9.5 and 10-inch belt  furnaces.

*Limited quantities currently in stock.  Lead time to ship, 2 business days after receipt of payment (or receipt of purchase order on approved credit).

**Available for use on certain 36" low temperature RTC furnace and dryers.

IR Lamp LAMP KITS. 910-073327-01 Lamp seals are high temperature aluminosilicate fiber insulator strip seals good to 1500C. Two are required for each lamp. Install one at each end of lamp between quartz lamp and ceramic lamp holders in furnace. Add US$2.00 per seal (US$4.00 per lamp) for kit pricing.

ORDER SEPARATELY (minimum order: 20 pcs)


RTC Furnace Controller Opto22 LCM4

SCR assembly Click Here for Top View

The original RTC Opto22 furnace controller. This controller is discontinued by the manufacturer. We still have a few RTC laboratory units in stock. All ship with a new 5-year Lithium battery installed.  LCM4 controllers are fully tested before shipment. If purchased, M4SENET cards are properly addressed to function with an LCI or RTC furnace and installed and tested in LCM4 controller if ordered at the same time. 

All controllers and controller parts come with a limited  90-day warranty. Damage due to static discharge not covered.

Batteries (5-year Lithium) that are purchased separately are fresh and ship with connector for easy installation on LCM4 controller COM card.

Model Description Part Number Unit USA Price Intl Price
SNAP-LCM4 LCM4 Furnace Controller (RTC version) 322-092246-03U assy 2065.00 2265.00
M4SENET-100 Ethernet card for LCM4 controller (RTC IP) 322-092246-04 ea 1053.00 1153.00
5-Year BATTERY, Lithium for LCM4 Controller 322-092208-01 ea 55.00 65.70
SNAP-LCM4-100 LCM4 Controller with M4SENET-100 Card, new Lithium battery 322-092208-100 ea 3000.00 3300.00

LCM4 controller supply is extremenly limited. Please Call or email parts@furnacepros.com for current availabity.


SCR assembly

SCR assemblies for RTC furnaces, standard and high current.  SCR assemblies are comprised of controller board, SSR and fittings for direct replacement on your RTC or LCI furnace.

Description Part Number Unit Price
25 A 50A SSR/Controller board assy 370-092224-00 assy 300.00
50 A 90A SSR/Controller board assy 370-092225-00 assy 375.00

Newer designs available.

SCR Controller Board

SCR Controller

Controller board only for standard and high current SSRs. Used on most RTC and some LCI Furnaces

Description Part Number Unit Price
25 A Controller board 370-092224-04 ea 200.00
50 A Controller board 370-092224-04 ea 200.00

Newer designs available.


Solid State relay for SCR for RTC furnaces

Solid state relay for SCR. Use with SCR Controller board.  Available in standard and high current models.  For all LCI & RTC furnaces, ovens and dryers.

Description Part Number Unit Price
50 A Solid State Relay for 25 A SCR 370-092224-03 assy 130.00
90 A Solid State Relay for 50 A SCR 370-092225-02 assy 220.00


Dual Thermocouple for RTC furnaces

Furnace Thermocouples

Factory original type K thermocouple probes for Radiant Technology furnaces. Single and dual design with inconel 600 sheath and standard male connectors.

Furnace thermocouples are subject to drift over time due to material deposition and contamination of the junction. Small changes in composition cause changes in the EMF signal generated by the wire pair and can cause errors in the temperature signal. Replacement once per year, or every 2 years in clean environments, is recommended.

Standard probes are 1/8" diameter x 8" long. Other sizes available.

Description Part Number Unit Price
RTC Type K Zone Thermocouple, Single, standard male plug (includes ferrule set) 396-018334-01 ea $Call
RTC Type K Zone Thermocouple, Dual, standard male plugs (includes ferrule set) 396-018335-01 ea $Call

Call for latest prices. Manufactured to order. Expect 7-10 business days to ship

Profiling Thermocouples

Dual Thermocouple for RTC furnaces

Factory preferred type K high speed thermocouples ideal for profiling RTC furnaces. Inconel 600 sheath for high temp 1100 degree C performance. Fitted with male mini-plug.

Profiling thermocouples are subject to drift and degradation of the junction through normal repeated use at tempertures above 600C. For best results replace profiling thermocouples every 10 high temperature runs, or when results demonstrate a lot of spikes (noise).

Standard type K accuracy is the greater of +/- 2 deg C and +/- 0.75%.

Description Part Number Unit Price
Type K Thermocouple, 0.040 x 144" long, High speed, high temperature, mini plug (fits LA-304, LA-306, LA-309, LA-310 and other single chamber furnaces) 375-019040-12 ea 126.00
Type K Thermocouple, 0.040 x 204" long, High speed, high temperature, mini plug (fits S-600, SMD-600 series and most 2-3 chamber furnaces) 396-019040-17 ea 134.00
Type K Thermocouple, 0.062 x 204" long, HD High speed, high temperature, mini plug (fits S-600, SMD-600 series and most 2-3 chamber furnaces) 396-019060-17 ea 145.00

Call for latest prices. Other diameters and lengths available. Manufactured to order. Expect 7-10 business days to ship

Continuous Furnace Belts
New and Used

RTC furnace belt

Standard mesh OEM belts for low and high temperature belt furnaces, ovens and dryers in stainless steel and Nichrome-V. Other materials and high mass, dimpled belts, and other optional patterns available.

We have many used belts in stock. Or order a new belt. New belts are manufactured-to-order to match the mass and thermal characteristics of your current belt.

Open Belts Page =>    Belt Specification pdf

LCI and RTC Furnace Belts

RTC furnace belt

Standard mesh original design belts for RTC and other belt furnaces in stainless steel and Nichrome-V. Dimpled belts and other optional patterns available. Priced by linear foot. Prices change frequently. Please call or email belt details for current price.

Open RTC/LCI Belts Page =>    Belt Specification pdf

  RTC and LCI Standard Belts
Furnace Belt Measurement Tech Note TEC-245 pdf
  Nominal   Stainless Steel   Nichrome-V
Furnace Size Part Number Description Unit  Part Number Unit
6 415-073062-01 6 inch wide, standard mesh foot  415-032019-01 foot
9/10 415-071692-05 9.5 inch wide, standard mesh foot   415-071692-02 foot
14/15 415-071692-06 15 inch wide, standard mesh foot  415-071692-03 foot
24 415-071692-07 24 inch wide, standard mesh foot   415-071692-04 foot

OEM Replacement Parts for these and other LCI, RTC & TP Solar Furnaces

Legacy, Replacement and original OEM parts for RTC furnace models including:
  AG-series AG-1215, AG-1224, AG-1515, AG-1524
  C-series C-915, C-924, PV-309
  D-Series D-615, D-624, D-915, D-924, D-936, D-948, D-956
  LA-series LA-304  LA-306  LA-306  LA-309  LA-310
  PV-series PV-314, PV-614, PV-624, PVD-309, PVD-609, PVD-614, PVD-615 PVD-624
  S-Series S-910, S-910X, S-914, S-914X, S-915, S-915X, S-1215, S-1215X, S-1224, S-1224X, S-1515
  S-Series Hydrogen S-910H, S-910XH, S-914H, S-914XH, S-915H, S-915XH, S-1215H, S-1215XH, S-1224H,
      S-1224XH, S-1515H, S-1524H
  TF-series TF-909, TF-915, TF-924
... and many others.  Call for assistance with your serial number or furnace order number.

Low Prices on RTC Parts & IR Lamps for Radiant Technology Furnaces

Upgrade to Latest Technologies and

Add 15 years to your furnace with new Computer, Controls & Electricals

Retrofit or Upgrade chamber, controls & cooling

RTC LA-306 Furnace Parts  ·  LA-309 furnace Parts  ·  LA-310 Furnace Parts

Call us for assistance.

Used Furnaces
New Furnaces
eMail for Quote

Corporate Offices:

30025 Alicia Pkwy #417
Laguna Niguel CA 92677 USA

P: 1.949.218.4996

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