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
HEATER

GM.65


Panel and frame heaters GM.65
 		  
Grelci Maras d.o.o.
Jevčeva pot 2,
1351 Brezovica pri Ljubljani,
Slovenia
+386 (01) 365 3 518 | info@grelci-maras.si


 

USE


The GM.65 flat heaters are the perfect solution for applications requiring efficient, even heat distribution at temperatures exceeding 350°C. Engineered for demanding industrial environments, they are commonly used for heating molds, tools, and melt flow channels. These heaters deliver rapid heating, exceptional durability, and customizable designs, ensuring optimal performance in high-temperature applications.

GM.65 flat heaters are perfect in dry conditions, they are not suitable for wet environments. For such applications, we recommend our GM.76 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.

Send inquiry




 


 

OPTIONS

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


 


Flat heaters GM.65

  • 80 x 73 mm


 

CONSTRUCTION OF FLAT HEATERS GM.65


The GM.65 heaters can be constructed in three ways to suit your needs:
  • GM.651 NORMAL Closed with Sheet Metal - Standard construction for versatile applications.
  • GM.652 CERAM ONLY - Features ceramic insulation, perfect for installations with limited space.
  • GM.653 NORMAL with Pressure Plate – Pressure plate(Fe) available in thicknesses of 3, 4, 5, 6, 8, or 10 mm for enhanced durability (welded).
All GM.65 heating elements are equipped with heating wire and high-quality Steatit insulation for superior heat resistance and efficiency. Choose the right configuration for your application to maximize performance and reliability.		  



 


 

TECHNICAL SPECIFICATIONS



GM.651 NORMALGM.652 CERAM ONLYGM.653 NORMAL with Pressure Plate
 
  1. Ceramic elements with resisting wire
  2. Ceramic fiber insualtion
  3. External sheet metal cover
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 12 mm
 
Sheath material:
 		 Aluminized steel
 		 Width:
 		 30-1200 mm
 
Isolation material:
 		 Steatit
 		 Lenght:
 		 60-1500 mm
 
Max Watt densty:
 		 6,5 W/cmm2
 		 Connection:
 		 Variety of options, see bottom
 
Operating temperature:
 		 max 600°C*
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K
 
 
  1. Ceramic elements with resisting wire
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 10 mm
 
Sheath material:
 		 no
 		 Width:
 		 30-1200 mm
 
Isolation material:
 		 Steatit
 		 Lenght:
 		 60-1500 mm
 
Max Watt densty:
 		 6,5 W/cmm2
 		 Connection:
 		 Only wires
 
Operating temperature:
 		 max 600°C*
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K
 
 
  1. Ceramic elements with resisting wire
  2. Ceramic fiber insualtion
  3. External sheet metal cover
  4. Pressure plate ( Fe, AISI) welded
  
Standard Voltage:
 		 230V, 400V (other on request)
 		 Wall thickness:
 		 12 mm + (3,4,5,6,8,10 mm)
 
Sheath material:
 		 AISI 0304 / Aluminized steel
 		 Width:
 		 30-1200 mm
 
Isolation material:
 		 Steatit
 		 Lenght:
 		 60-1500 mm
 
Max Watt densty:
 		 6,5 W/cmm2
 		 Connection:
 		 Variety of options, see bottom
 
Operating temperature:
 		 max 600°C*
 		 Connection cable:
 		 Temp. resistant cable with steel mesh up to 400°C
 
Heating conductor:
 		 Nickel-Chrom 80/20
 		 Integrated thermocouple:
 		 Type: J, K
 



 


 

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.
  

FREQUENTLY ASKED QUESTIONS

When to select GM.651 NORMAL Closed with Sheet Metal ?
Select the Ceramic Flat Heater GM.651 when working temperatures range from 300°C to 600°C and high power density is required, up to 8 W/cm². The GM.651 heater ensures uniform heat distribution and a long operational life thanks to its durable construction. With superior ceramic insulation, it offers excellent thermal retention, minimizing heat loss and reducing energy consumption. Ideal for applications demanding high performance and efficiency at elevated temperatures.
When to select GM.652 CERAM ONLY?
Use Ceramic Flat Heater GM.652 when operating temperatures range from 300°C to 600°C and space is limited, or when installation in an existing metal structure is required. This heater is designed for easy integration into confined spaces while maintaining high performance and efficiency.
When to select GM.653 NORMAL with Pressure Plate?
Select the Ceramic Flat Heater GM.653 for applications with working temperatures from 300°C to 700°C and when high power density is required, up to 8 W/cm². The GM.653 offers enhanced stability with an integrated pressure plate, ensuring secure installation. It also provides optimal heat distribution and a long operational life thanks to its durable construction, making it ideal for demanding high-temperature environments.



 

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.
 

 
    


 
 

COMPLETE YOUR SET

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

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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