Cartridge Heaters - HD
HD
MgO compaction is an innovative construction technology by which unique performance in the field of electric heaters is achieved.
In the HD series heater, the resistive wire is wound on an MgO core and is thus located close to the heater’s outer tube. This technology achieves a very efficient heat exchange, which keeps the wire at a lower temperature than a conventional heater.
This prevents the wire itself from overheating during use, giving the product high performance.
Features
- Insulating material: Compacted MgO
- Casing material: Stainless steel
- Length tolerance: Up to 150 mm ± 2 mm / over 150 mm ± 1.5 %
- Maximum temperature on the casing: 750 °C depending on application
- Connection voltage: 230V (standard)
- Electrical connection: Cables with different types of insulation: fibreglass, PTFE, silicone, quartz
Measures
Metrics (mm) | Imperials (inches) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Nominal diameter | 6.0 | 6.5 | 8.0 | 10.0 | 12.5 | 16.0 | 20.0 | 1/4 | 3/8 | 1/2 | 5/8 |
Diameter tolerance | -0.03/-0.05 | -0.04/-0.06 | -0.04/-0.07 | -0.05/-0.08 | -0.06/-0.10 | -0.03/-0.05 | -0.04/-0.07 | -0.05/-0.08 | |||
HD-Mini Ø 4 mm
- Surface load: up to 30 W/cm²
- Diameter tolerance: -0.02/-0.04
- Insulating material: Compacted MgO
- Casing material: Stainless steel
- Length tolerance: ± 2 mm
- Maximum temperature on the casing: 650 °C
- Connection voltage: 230V (standard)
- Electrical connection: PTFE-insulated flexible cables
HD with built-in probe
- Thermocouple types
- TC J (iron/constantan)
- TC K (chromel/alumel)
- TC1: Insulated hot joint near the bottom plate (standard)
- TC2: Hot joint in contact with the bottom plate
- TC3: Insulated hot joint in the centre of the heater
- Resistance thermometer types
- PT100 (platinum)
- PT1000 (platinum)
- TR1: Resistance thermometer positioned near the bottom plate
HD with differentiated power
The power distribution is defined according to the application.
We can distinguish between heaters with:
- more power at the ends
- more power in the centre
- one or more unheated zones.
- two or more independent zones
Square HD
- Section: 6.0×6.0
- Surface load: up to 10 W/cm²
- Diameter tolerance: -0.05/-0.15
- Insulating material: Compacted MgO
- Casing material: stainless steel
- Length tolerance: ± 1.5%
- Maximum temperature on the casing: 600 °C
- Connection voltage: 230V (standard)
- Electrical connection: flexible fibreglass-insulated cables (standard)
Connections and cable protection
Internal cable connection | |
|---|---|
S1 | Fibreglass cables |
S2 | PTFE cables and PTFE plate |
S3 | Silicone cables and plate |
S4 | PTFE and epoxy resin cables |
External cable connection | |
|---|---|
HR | Externally crimped cables |
HE | Ceramic hood |
HZC | Ceramic connection tube and finish |
HZP | Silicone sealing connection tube |
HZB | Connection tube with oversized cables |
HZE | Connection tube and epoxy resin |
Cable protection | |
|---|---|
HZV | Silicone fibreglass casing |
HZM | Braided metal casing |
HZG | Flexible metal casing |
HZX | Corrugated stainless steel tube |
HZW | Multi-polar silicone cable |
Fixing solutions
Right-angle couplings | ||
|---|---|---|
HH | 90° output | |
HT | Corner block | |
HL | Side output | |
Threaded connections | ||
|---|---|---|
HB | Welded stainless steel threaded connection | |
HBM | Movable threaded connection | |
HZC | Ceramic connection tube and finish | |
Flange connections | |
|---|---|
HF | Stainless steel ring fixing flange |
HFP | Stainless steel flange fastener |
Want to know more?
Contact us for technical data sheets and other details on the application possibilities of each component.