Grelci Maras d.o.o.|Jevčeva pot 2, 1351 Brezovica pri Ljubljani, Slovenia|+386 (01) 365 3 518|info@grelci-maras.si
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FLAT AND FRAME
HEATERS

GM.55, GM.550


Panel and frame heaters GM.55		  
Grelci Maras d.o.o.
Jevčeva pot 2,
1351 Brezovica pri Ljubljani,
Slovenia
+386 (01) 365 3 518 | info@grelci-maras.si


 

USE


GM.55 flat heaters are the ideal choice for applications requiring efficient, even heat distribution. Commonly used for heating molds, tools, and melt flow channels, these heaters provide rapid heating, exceptional durability, and customizable designs to meet the demands of industrial environments.
GM.55 flat heaters are perfect in dry conditions, they are not suitable for wet environments. For such applications, we recommend our GM.75 heater model, specifically designed to deliver reliable performance in moisture-prone settings.

Application areas:
Heating of molds, tools, and melt flow channels to ensure optimal temperature control and efficient material processing.

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OPTIONS

 
  • Holes, cutouts and thermocouple holders
  • Variety of connection boxes
  • Integrated thermocouple type J, K or PT100
  • Thermal insulations
  • Other pressure plate material such as stainless steel
  • Integrated temperature limitor
    

 
 

Flat and frame heaters


  • GM 551
  • GM 552
  • GM 553
  • GM 551
  • GM 551
  • GM 551
 

CONSTRUCTION OF MICANIT
BAND HEATER GM.50


The GM.55 heaters can be constructed in three ways to suit your needs:
  • GM.551 NORMAL Closed with Sheet Metal - Standard construction for versatile applications.
  • GM.552 MIKA ONLY - Features mica insulation, perfect for installations with limited space.
  • GM.553 NORMAL with Pressure Plate – Pressure plate(Fe) available in thicknesses of 3, 4, 5, 6, 8, or 10 mm for enhanced durability.
All GM.55 heating elements are equipped with heating wire and high-quality MICANITE insulation for superior heat resistance and efficiency. Choose the right configuration for your application to maximize performance and reliability.		  



 


 

TECHNICAL SPECIFICATIONS



GM.551 NORMALGM.552 MIKA ONLYGM.553 NORMAL with Pressure Plate
 
  1. Sheet metal plate
  2. Insulation sandwich with resistance wire
  3. Sheet metal cover
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 4 mm
 
Sheath material:
 		 AISI 0430 / Aluminized steel
 		 Width:
 		 20-1200 mm
 
Isolation material:
 		 Micanite
 		 Lenght:
 		 20-1500 mm
 
Max Watt densty:
 		 4 W/cmm2
 		 Connection:
 		 Variety of options, see bottom
 
Operating temperature:
 		 max 350°C, for higher temp. we use GM.65
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K, PT100
 
 
  1. Bottom insualtion MICA
  2. MICA with resistance wire
  3. Top insulation MICA
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 2,5 mm
 
Sheath material:
 		 no
 		 Width:
 		 20-1200 mm
 
Isolation material:
 		 Micanite
 		 Lenght:
 		 20-1500 mm
 
Max Watt densty:
 		 4 W/cmm2
 		 Connection:
 		 Only wires
 
Operating temperature:
 		 max 350°C, for higher temp. we use GM.65
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K, PT100
 
 
  1. Sheet metal plate
  2. Insulation sandwich with resistance wire
  3. Sheet metal cover
  4. Pressure plate ( Fe, AISI 0304)
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 4 mm + (3,4,5,6,8,10 mm)
 
Sheath material:
 		 AISI 0430 / Aluminized steel
 		 Width:
 		 20-1200 mm
 
Isolation material:
 		 Micanite
 		 Lenght:
 		 20-1500 mm
 
Max Watt densty:
 		 4 W/cmm2
 		 Connection:
 		 Variety of options, see bottom
 
Operating temperature:
 		 max 350°C, for higher temp. we use GM.65
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K, PT100
 



 


 

HOW TO ORDER

 
  CT-502   CT-504    CT-505     CT-506   CT-508    CT-510   CT-510_v2     CT-550

 


 

SELECTION


Selecting the right flat heater is essential for ensuring optimal performance, energy efficiency, and the long-term reliability of your heating system.

Here are key factors to consider when selecting a flat heater:
  • Temperature Range: Determine the maximum operating temperatures required for your process.
  • Watt Density: Assess the power requirements to achieve the desired heating levels efficiently. Higher watt densities are suitable for faster heating and more demanding applications.
  • Mounting of heater: Mounting heater properly to the desired surface is essential for optimal performance. Ensure there are enough fixing holes and a pressure plate to prevent movement and ensure stability. This ensures efficient heat distribution, energy savings, and longer-lasting performance.

 


 

CONNECTION BOXES

AxialTangentialRadial
  • B-02
    • Sheet metal housing
    • Cable gland
    • 230V/400V/5A
    • Cable direction EX1, EX3
  • B-05
    • Sheet metal housing
    • Cable gland
    • 230V/400V/5A
    • Cable direction EX1, EX3
  • C-10
    • Sheet metal housing
    • Cable gland
    • 230V/400V/10A
    • Cable direction EX1, EX3
  • C-20
    • Sheet metal housing
    • Cable gland
    • 230V/400V/16A
    • Cable direction EX1, EX3
  • CA-10
    • Sheet metal housing
    • Cable gland
    • 230V/400V/12A
    • Cable direction EX1, EX3
  • CA-20
    • Sheet metal housing
    • Cable gland
    • 230V/400V/15A
    • Cable direction EX1, EX3
  • CA-25
    • Sheet metal housing
    • Cable gland
    • 230V/400V/20A
    • Cable direction EX1, EX3




 

HEATER DESIGN SERVICE


We offer detailed 3D models of each heater, allowing you to confirm the design before production. These models ensure precise specifications and compatibility with your application, providing peace of mind and confidence in your order.

Please be aware that this service will incur additional costs.
 

 
    


 
 
   

EXPRESS PRODUCTION SERVICE


When your production halts due to a broken heater, our Express Production Service is here to help. We offer expedited heater manufacturing within 48 hours to get you back up and running quickly. (Service availability depends on current production capacity.) Please be aware that this service will incur additional costs.

Please be aware that this service will incur additional costs.
 

 


 
 

COMPLETE YOUR SET

HOTRUNNER CONTROLLERS
Pulzon 
THERMOCOUPLES
GM.90 
TEMPERATURE CONTROLLERS
GM.110 
ACCESSORIES
GM.100 
 
 
 

GRELCI MARAS d.o.o.

Address
Jevčeva pot 2
1351 Brezovica pri Ljubljani
Slovenija, EU

Phone
+ 386 (01) 365 3 518

E-mail
info@grelci-maras.si

ID za DDV
SI89018788

Matična številka
6090648000

TRR
SI56 0201 8025 9724 155
Nova Ljubljanska Banka d.d.


 

Have a question?

Write to us if you have any question and we will answer you as soon as possible.
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