Rama Corporation Cartridge Heaters

Rama Corporation has become well known as the problem solver of the industry, as well as producing the highest quality heating elements on the market today. Rama is the largest heater manufacturer on the West Coast supplying products worldwide for all industries.

Rama’s cartridge heaters are the highest quality available. The Rama®Rod heaters are the result of many years experience perfecting high watt-density elements which are capable of long life at elevated temperatures. Rama®Rod heaters are manufactured with an Incoloy sheath and Incoloy end disc in addition to lava seal. They provide continuous sheath temperature up to 1600°F, as well as uniform, accurate heating in the lower temperature range. Our EDM® cartridge heaters are manufactured with stainless steel sheath, stainless steel end disc material and mica seal. These heaters are designed specifically to provide excellent heating in the moderate ranges. The EDM® cartridge heater can provide sheath temperature up to 1200°F. Whatever your heating requirements, RAMA can provide the right heater for your application.

  • Multicircuits: 3/4″ diameter RAMARODs can be provided with independent heat zones thru multicircuit or 3 phase resistance wire windings; these heaters permit uniform heat along the entire length of the heater where heat transfer rates must vary between specific heated areas. Consult RAMA for minimum length requirements.
  • Profiled Heat: RAMAROD and EDM heaters can be manufactured with a shaped profile heat distribution to balance out heat applied along the length of the heater.
  • Thermostats: Various thermostats meeting different sensitivities can be incorporated into and made an integral part of RAMAs cartridge heaters to control or act as a safety monitor against excessive temperature.
  • Moisture Resistant Barriers: In addition to the Teflon seal type heaters, which will withstand operating temperatures up to 300°E various epoxy compounds can be supplied at the leadwire end for heater operation up to 450:F Consult factory
    for detailed information.
    Other Accessories: Cartridge heaters can be supplied with grounded, twist-lock as well as UL-listed, dead front (hospital grade) electrical plugs. Post terminal and terminal boxes for protection of electrical connectors are available.
    Metric size heaters: RAMA manufactures metric dimension cartridge heaters for customers with this requirement. See page 15 for a description of these heaters together with stan­dard sizes available.

RAMA produces heaters that meet stringent regulatory codes of several industries and agencies. Our production process is accepted by NASA, the aerospace industry, military and nuclear communities as well as local, state and federal codes. All of our heating elements are designed to meet the specifications of NEMA (National Electrical Manufactures Association), unless otherwise specified by the customer .

RAMA produces heaters that meet stringent regulatory codes of several industries and agencies. Our production process is accepted by NASA, the aerospace industry, military and nuclear communities as well as local, state and federal codes. All of our heating elements are designed to meet the specifications of NEMA (National Electrical Manufactures Association), unless otherwise specified by the customer .

Rama Rod Cartridge Heater Diameter (inch)

Rama Rod Cartridge Heater Diameter (Metric)

Heaters 3/8” (10mm) diameter or larger can be rated 480V. Consult RAMA for requirements and power rating limits of other configurations.

If you are a designer or manufacturer of equipment which must meet US and/or Canadian National Safety standards, RAMA’s RAMA®ROD and EDM® cartridge heater types A, B and C have been found to be acceptable under UL and c-UL (CSA equivalent) Component Recognition Program File No. E119533

All RAMA®ROD and EDM® heaters have a minimum of 1/4” unheated section at the end disc end. Teflon leadwires and seals are rated at 300°F; all other leadwires are rated at 840°F

Cartridge heater Type-A

2” Solid nickel terminal pins are butt-connected to insulated, stranded nickel leadwires. This heater is stocked in many sizes and power ratings. UL/cUL component recognition.

Cartridge heater Type-B

Stranded nickel leadwires with insulation swaged into heater. This heater is stocked in many sizes and power ratings. Not recommended for use in applications where the temperature at the leadwire end exceeds 840°F. UL/cUL component recognition.

Teflon seal at leadwire end with Teflon insulated, stranded silver plated copper leadwires. Not recommended for use where temperature at leadwire end will exceed 300°F. This heater cannot be modified from stock. UL/cUL component recognition.

1.75” Solid nickel terminal pins with fiberglass insulating sleeving swaged into seal. Insulated, stranded nickel leadwires are butt-connected to terminal pins.  This heater cannot be modified from stock.

Insulated, stranded nickel leadwires are covered by a stainless steel braid. Shrink tubing covers end of sleeving at leadwire end. 1/4” diameter heaters are supplied with an optional 3/4” long metal sleeve at the leadwire end.  Can be modified from stock. Consult factory for specifications.

Seal is brazed to sheath on 3/8” diameter or larger heater. Teflon insulated, stranded, silver plated    copper leadwires are connected to solid nickel terminal pins. This heater cannot be modified from stock. Special order item, consult factory for specifications.

Ceramic bead insulators cover terminal pins. Leadwires can be butt-connected to the  terminal pins by the factory. When ordering, specify length of ceramic bead insulators and leadwires desired. This heater can be modified from stock. Note: when modifying type A stock heaters, the length of the  ceramic beads will be approximately 2” max.

Type ‘J’ insulated stranded, 24-gauge thermocouple wires are integral in heater. Type (H) T/C junction located at the end disc. These units are stocked in a variety of sizes with 36” thermocouple and leadwires. Type (I) T/C junction located per customer specification. Type ‘K’ thermocouple available upon customer request. This heater cannot be modified from stock. (Special Note: Solid thermocouple wires are required on heaters manufactured in 1/4” diameter.)

Internal ‘J’ insulated, stranded, 24-gauge thermocouple wires are integral in heater. Other features include flat end disc, Teflon seal, profiled heat, and 3/4” cold section. Thermocouple junction per customer specification. Type ‘K’ thermocouple available per customer request. (Special note: Solid thermocouple wires are required on heaters manufactured in 1/4” diameter.)

Stainless steel flexible conduit swaged-in with insulated, stranded, nickel leadwires. For 1/4” diameter heaters and conduit sizes consult factory. This heater cannot be modified from stock.

Cartridge Heater Products

In Stock Cartridge Heaters

Rama’s cartridge heaters are the highest quality available. The Rama®Rod heaters are the result of many years experience perfecting high watt-density elements which are capable of long life at elevated temperatures. Rama®Rod heaters are manufactured with an Incoloy sheath and Incoloy end disc in addition to lava seal. They provide continuous sheath temperature up to 1600°F, as well as uniform, accurate heating in the lower temperature range. Our EDM® cartridge heaters are manufactured with stainless steel sheath, stainless steel end disc material and mica seal. These heaters are designed specifically to provide excellent heating in the moderate ranges. The EDM® cartridge heater can provide sheath temperature up to 1200°F. Whatever your heating requirements, RAMA can provide the right heater for your application.

Use the search field below to narrow down the diameter that you need.

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1/2"12"500240280.404A12A/PEP
1/2"12"1000240560.404A12A/PIP
1/2"12"1500240840.404A12A/PMP
1/2"12"20002401120.404A12A/PQP*
1/2"14"1000240480.484A14A/PIP
1/2"14"23002401100.484A14A/PTA*
1/2"15"1500240670.504A15A/PMP
1/2"16"1000240420.524A16A/PIP
1/2"18"1500240550.574A18A/PMP
DIALENGTHWATTSVOLTSWATTAPPOX.RAMA
(INCH.)(INCH)DESITYWgt/LbsPART #
5/8"1-1/4"2501201720.0135A1C/DWT
5/8"2"200120690.135A2A/DWJ
5/8"2"200240690.135A2A/PCF
5/8"2"5002401710.135A2A/PEP
5/8"2"7502402570.135A2A/PGP
5/8"2-1/4"3501201030.145A2C/DYO
5/8"3"250120520.205A3A/DWT
5/8"3"250240520.205A3A/PCP
5/8"3"5002401030.205A3A/PEP
5/8"3"7502401540.205A3A/PGP
5/8"4"500240730.265A4A/PEP
5/8"4"550240810.265A4A/PFA
5/8"4"600240880.265A4A/PFK
5/8"4"7502401100.265A4A/PGP
5/8"4"10002401460.265A4A/PIP
5/8"4-1/2"500240640.285A4E/PEP
5/8"5"750240860.295A5A/PGP
5/8"5"10002401140.295A5A/PIP
5/8"6"500240460.345A6A/PEP
5/8"6"750240700.345A6A/PGP
5/8"6"1000240930.345A6A/PIP
5/8"6"15001201400.345A6A/EHT*
5/8"6"15002401400.345A6A/PMP
5/8"7"1000240790.405A7A/PIP
5/8"8"500120340.475A8A/DZT
5/8"8"500240340.475A8A/PEP
DIALENGTHWATTSVOLTSWATTAPPOX.RAMA
(INCH.)(INCH)DESITYWgt/LbsPART #
5/8"8"800240550.475A8A/PHA
5/8"8"1000240680.475A8A/PIP
5/8"8"1200240820.475A8A/PKF
5/8"8"15002401020.475A8A/PMP
5/8"8"20002401360.475A8A/PQP
5/8"9"1500240910.505A9A/PMP
5/8"10"500240270.535A10A/PEP
5/8"10"1500240810.535A10A/PMP
5/8"10"1600240860.535A10A/PNK
5/8"10"20002401080.535A10A/PQP
5/8"11"2000240980.615A11A/PQP
5/8"12"500240220.665A12A/PEP
5/8"12"600120270.665A12A/EAO
5/8"12"1000240450.665A12A/PIP
5/8"12"1500240670.665A12A/PMP
5/8"12"2000240900.665A12A/PQP
5/8"14"37002401410.795A14A/QFF*
5/8"15"750240270.845A15A/PGP
5/8"15"2400240850.845A15A/PTU
5/8"16"2500240830.915A16A/PUP*
5/8"16"45002401490.915A16A/QLP*
5/8"18"1500240441.035A18A/PMP
5/8"18"3000240881.035A18A/PZP*
5/8"18"47002401381.035A18A/QNF*
5/8"20"1500240401.255A20A/PMP*
5/8"24"2000240441.475A24A/PQP*
5/8"36"3000240442.305A36A/PZP*
DIALENGTHWATTSVOLTSWATTAPPOX.RAMA
(INCH.)(INCH)DESITYWgt/LbsPART #
3/4"3"500240860.246A3A/PEP
3/4"4"500240610.316A4A/PEP
3/4"4"10002401220.316A4A/PIP
3/4"5"500240480.386A5A/PEP
3/4"5"1000240950.386A5A/PIP
3/4"6"500240390.446A6A/PEP
3/4"6"1000240780.446A6A/PIP
3/4"7"500240330.516A7A/PEP
3/4"7"1000240660.516A7A/PIP
3/4"8"500120290.586A8A/DZT
3/4"8"500240290.586A8A/PEP
DIALENGTHWATTSVOLTSWATTAPPOX.RAMA
(INCH.)(INCH)DESITYWgt/LbsPART #
3/4"8"1000240570.586A8A/PIP
3/4"8"20002401140.586A8A/PQP
3/4"10"1000240450.726A10A/PIP
3/4"10"2000240900.726A10A/PQP
3/4"12"1000240370.846A12A/PIP
3/4"12"2000240740.846A12A/PQP
3/4"12"40002401480.846A12A/QHP*
3/4"13"1000240340.936A13A/PIP
3/4"14"1250240401.036A14A/PKP
3/4"14"2500240791.036A14A/PUP
3/4"15"1500240441.096A15A/PMP
3/4"16"1800240491.146A16A/PPA
3/4"18"2000240491.256A18A/PQP
3/4"20"1200240261.406A20A/PKF
3/4"20"2250240491.406A20A/PSP
3/4"20"2300240501.406A20A/PTA
3/4"24"1375240251.806A24A/PLP
3/4"24"1400240251.806A24A/PLU
3/4"24"2800240511.806A24A/PYA
3/4"36"2500240302.506A36A/PUP

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Quote Form

Please fill out our quote form as complete as possible to eliminate confusion and delayed response from our customer support team

  • RAMA CORPORATION
    QUOTE FORM FOR RAMA®ROD AND EDM® CARTRIDGE HEATER

  • SPECIFICATIONS:

  • ±2%
  • ±2% (MIN .25” COLD AREA REQUIRED AT LEAD END)
    (NOTE: FOR 3/4” ONLY. MINIMUM LENGTH REQUIRED)
  • STANDARD CONFIGURATIONS AND MODIFICATIONS:

  • TERMINATION:

  • ±2%
  • ±2%
  • ±2%
  • SPECIAL SEALANT: RAMA CAN PROVIDE SPECIAL EPOXY SEALS, SILICONE VARNISH, OR RTV UPON REQUEST
    SPECIAL ITEMS: GROUND WIRE, POST TERMINAL, TWIST LOCK PLUGS, THERMOSTATS, COOLING FINS, AND OTHER ACCESSORIES MAY BE AVAILABLE UPON REQUEST. CONSULT FACTORY FOR SPECIFICATIONS.
    SPECIAL NON-STANDARD DESIGNS MUST BE ACCOMPANIED BY A DIMENSIONAL DRAWING.

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