| |
 |
| |
|
Square
3.3 x 3.3 |
Rectangular
4.5 x 2.5 |
|
|
|
|
| |
|
-
Stainless steel sheath
- Mineral insulator : MgO (oxide of
magnesium) heavily compressed
- 80/20 nickel-chrome resistance wire,
temperature of fusion 1400°C
- Stainless steel junction |
|
| |
 |
| |
-
Flexible thick glass silicone sheath
- Alimentation cable 0.5mm² or 0.75mm² flexible
PFA insulated flexible nickel
- Ground wire
- PFA insulated thermocouple J |
| |
The RCF
are shaped on demand or you can do it yourself.
|
| |
|
|
| Electrical
characteristics |
Utilization
|
Recommandations
|
| |
|
|
Voltage
: 24 to 230 V.
Intensity : 5 A at the most.
Breakdown voltage :
- 1250
V in straight element.
- 1000V
after shaping.
- 600V
between the cable and the thermocouple.
Leaking current : inferior to 1 mA/kw.
Insulation resistance : ~10MW |
Max.
temperature : 650°C. |
| |
| |
| |
|
|
|
-
The whole heating part needs to be
both coiled and in touch with the
piece to heat.
- For security, a part of the non-heating
zone needs to be in touch with the
piece too.
- Never reshape a heater
which has already been shaped.
|
|
|
Tolerances
|
Bending
|
|
Ø
: ± 0,1mm
Length : ± 5%
Power : ±10%
|
For
Ø3.7
Min inside Ø = 16mm. |
|
| |
|
|
For
3,3x3,3
Min inside Ø = 14mm. |
For 2,2 x 4,2
Min inside Ø = 10mm. |
|
|
| |
| |
 |
Microtubular
coiled Rollmax heaters are manufactured
to a revolutionary design, which
makes them the best choice in
the most demanding conditions.
The resistive wire is uniformly
distributed in a compacted MgO
insulation, with a CrNi-steel
outer protection sheath.
The heaters are annealed after
manufacturing, thus acquiring
a high malleability that allows
their being subsequently bent
into any complex shape, with
extremely narrow bending radius.
Rollmax heaters are used in
various applications, due to
their being intrinsically reliable
and highly versatile. They were
first designed for a very specific
application, the differential
heating of plastic injection
nozzles, and later become invaluable
in the most diverse and demanding
applications.
Aerospace, railway, chemical,
metalworking and food industry,
glass and paper industry, automotive,
packing, medical industry...
all have taken advantage from
the use of Rollmax heaters,
with their wide range of possible
shapes and their fitness to
an unlimited number of applications. |
|
| ROLLMAX
HEATERS’ WINNING FEATURES |
 |
•
A very wide contact surface results
in exceptio-nally high levels
of thermal conductivity towards
the body that needs to be heated
• Optimal insulation results in
very long life duration
• Heavy-duty construction results
in very high resistance to mechanical
shocks
• Operation temperature up to
700°C (1300°F)
• Very low mass results in extremely
low thermic inertia
• Optional built-in thermocouple
for high-resolution temperature
measuring (J-type standard; K-type
on request)
• Unlimited range of possible
shapes obtained from the straight
heater
• Heaters can be incorporated
into brass or aluminium castings
• 10 different cross sections
are available to fulfil any requirement
• Wide range of straight standard
heaters normally in stock, ready
for coiling/shaping |
| |
|
|
| |
| CROSS
SECTIONS |
| |
1.5 |
1.8 |
3.3 |
3.7 |
|
| |
3.3
X 3.3 |
|
|
|
|
| |
1.1
X 1.9 |
1.3
X 2.3 |
1.8
X 3.2 |
2.2
X 4.2 |
4.5
X 8 |
|
| |
| |
| FEEDING
CABLES AND PROTECTION VARIANTS
(standard length 1m) |
|
|
| |
 |
Standard solution for all models in
stock: PTFE-insulated Nickel leads,
protected by a strong, flexible, thick
glass/silicone sheath. |
 |
CGM
PTFE
insulated Nickel leads, protected
by a stainless steel flexible braid. |
|
| |
|
|
|
|
|
