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Square Cartridge HeatersDownloadsInquiry Form

Square Cartridge Heaters [1 / 2] Square cartridge heaters are used where much power has to be installed near the surface of a tool, e.g. in cutting knives, sealing stations or hot plates. The cartridge heaters can easily be pressed into a rectangular groove. Apart from the advantageous heat transfer over ¾ of the sheath, it is not necessary to cement or cast in the heater which is imperative for round cartridge heaters. Unlike tubular heaters which are also available in square sections (see chapter Flexible Heating Pipes), the square cartridge heaters have the termination on one side and can be loaded with 16W/cm² (2.5W/in²) due to their special inside construction.


Cross sections
4,5 x 4,5 ±0,1 6 x 6 ±0,1 8 x 8 ±0,1 10 x 10 ±0,15 6 x 12 ±0,15
Ø 4,5 ±0,1 6 ±0,1 8 ±0,1 10 ±0,15 10 ±0,15

Connection
Just like round cartridge heaters (see chapter Options for Cartridge Heaters)


Sheath
stainless steel 1.4541 (nickel 2.4068)


Bendable executions
adjustable to 2D & 3D contours

Square Cartridge Heaters with terminal head
4,5 x 4,5 mm » Ø 6,5 x 30 mm
6,0 x 6,0 mm » Ø 8,0 x 30 mm
8,0 x 8,0 mm » Ø 9,2 x 30 mm
10 x 10 mm » on request
6,0 x 12 mm » on request
Square Cartridge Heaters with nickel pins

Square Cartridge Heaters for Heating Plates & Hot Surfaces

For high power density at low mass.

Square Cartridge Heaters are perfectly suited for very thin plates. With a soft, malleable condition in stainless steel or nickel sheath they can be pressed into common milled grooves. In standard construction the max. temperature capability is 750°C. All sizes also available with integrated thermocouple and power distribution.

Our long-term partner DELTA-t-Hochleistungsheizelemente (high-performance heating elements) successfully uses these heaters in a variety of applications.

Heating Plates - Square Cartridge Heaters
Variants - Sqare Cartridge Heaters
Sqare Cartridge Heaters With terminal head
4,5 x 4,5 mm > Ø 6,5 x 30 mm
6,0 x 6,0 mm > Ø 8,0 x 30 mm
8,0 x 8,0 mm > Ø 9,2 x 30 mm
10 x 10 / 6 x 12 mm > Ø on request
4,5 x 4,5 ± 0,1 6 x 6 ± 0,1 8 x 8 ± 0,1 10 x 10 ± 0,15 6 x 12 ± 0,15
Ø 4,5 ± 0,1 6 ± 0,1 8 ± 0,1 10 ± 0,15 10 ± 0,15
L max up to 3 m
P max limited by max. surface load of 16 W/cm2 and max. current of 16 A
R min 12 mm 15 mm 20 mm 25 mm 30 mm

Heating Plates & Hot Surfaces with Square Cartridge Heaters

Heating Plates - Square Cartridge Heaters
Heating Plates - Square Cartridge Heaters
Heating Plates - Square Cartridge Heaters
Heating Plates - Square Cartridge Heaters

Example "Stamp": D=100 mm out of tempered tool steel up to max. 700°C continuous temperature. Fitted with 2 Square Cartridge Heaters 1500 W/ 230 V, 4,5 x 4,5 mm x 600 mm, with 50 mm unheated at the termination end. Annealed and formable with a nickel sheath, resistant up to 850°C surface temperature. Connection by fibreglass insulated pure nickel high-temperature leads (max. 500°C) with ground conductor and stainless steel braided metal sleeve.

Heizplatten und heiße Oberflächen mit quadratischen Heizpatronen

(Image source: with kind permission of the author Delta-t Heizelemente)

Advantages of Heating Plates with Square Cartridge Heaters

  • Simple plate manufacture due to rectangular groove geometry, no deep-hole boring
  • Simple heater installation by bending and pressing along the plate surface
  • Complex plate geometries with bores and openings
  • Optimal heat transfer due to 75% surface contact
  • No casting with heat conductive compound
  • Uniform temperature profiles due to thermally optimized groove layouts/power distribution and utilization of insulation plates
  • high process temperatures (up to 450°C in aluminium, up to 700°C in stainless steel)
Heating Plates - Square Cartridge Heaters Heating Plates - Square Cartridge Heaters Heating Plates - Square Cartridge Heaters Heating Plates - Square Cartridge Heaters


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