Home


Apri/ChiudiCartridge Heaters
High Watt Density
High Watt Density with TC
Medium Watt Density
Low Watt Density
Extra-High Watt Density
Hi-Temp. Super Sealing
Low Voltage
PTC Self-Limiting
Bolt Heaters
Cartridge Heaters for Fluids
Hi-Temp. Super Sealing
Options & Accessories
Catalogue download
Apri/ChiudiMicrotubular Coil Heaters
Features
Standard Sizes
Ordering Forms
MAXI-Rollmax
MINI-Rollmax
MICRO-Rollmax
Coiling Machine
Special Versions
Hi-Temp. Super Sealing
Catalogue download
Apri/ChiudiNozzle Heaters
Features (Piromax)
Brass Nozzle Heaters
Stainless Steel Nozzle Heaters
Extra-Thin Nozzle Heaters
Catalogue download
Apri/ChiudiBand Heaters
Mica Band Heaters
Ceramic Band Heaters
Rectangular Band Heaters
Cast Alu/Brass Heaters
Protection Housings
Insulating Pads
Contact Accessories
Connection Boxes
Clamping Devices
Catalogue download
Apri/ChiudiFlat Heaters
Mica Flat Heaters
Cast Alu/Brass Heaters
Grooved Heating Plates
Apri/ChiudiFlat Cartridge Heaters
Features
Connection Options
Heating Options
Bending in Shapes
Application and Shapes
Catalogue download
Apri/ChiudiTubular Heaters
Plain Tubular Heaters
Square Cross-Section
Finned Tubular Heaters
Duct Air Heaters
Threaded Immersion Heaters
Flanged Immension Heaters
Catalogue download
Apri/ChiudiCartridge Heaters for Radiators
Constant-power Heaters
PTC Self-Limiting Heaters
Connection Fitting
Control Units
Catalogue download
Apri/ChiudiInfrared Radiant Heaters
Features
Applications & Choice
Technical Data
Models
Reflectors
Thermo-sensitive Colours
Catalogue download
Apri/ChiudiFully-Ceramic Heaters
Features
Technical Data
Apri/ChiudiThermocouples & Resistances
MgO-insulated TC
Conventional TC
Thermoresistances
Fittings
Catalogue download
Apri/ChiudiHeating Cable
Self Regulating
Constant Power
Mineral Insulated
Freeze Protection
Apri/ChiudiFlexible Heating Tapes
Etched Foils - General informations
Features - Etched Foils
Apri/ChiudiDrum Heaters for Barrels
Integral Drum Heaters
Flexible Drum Heaters
Apri/ChiudiMoSi2 Heaters
Features
Apri/ChiudiAir Heaters
Selection
Use
Application
Models
Apri/ChiudiThermoregulators
Models
Apri/ChiudiTemperature Control Units
Features

If you don't see the above menu, update to
update to Firefox 2.0
 
MICROTUBULAR COIL HEATERS - COILING MACHINE

 

Coiling Machine (P/N: ATTR000006) 



IMPORTANT:
Use of manual coiling devices as the one hereby illustrated permit distributors and customers to obtain coiled Rollmax that are well coiled and reliable. Nonetheless, if the application and/or customer requirements call for higher precision in shape, dimension and degree of thermal conductivity, we highly advise to order Rollmax heaters that are coiled behind customer specifications by Rotfil's PLC-controlled coiling machines.

Coiling Rollmax heaters with the manual coiling machine
1. Determine the inner diameter of the heaters coil. The outer diameter can be calculated by adding the dimension of the side of the cross section twice to the inner diameter. Select the mandrel size according to the inner diameter of the coil chosen. Please refer to the chart below: the mandrels diameter will be inferior to the coils inner diameter.
2. Install the mandrel on the coiling machine (see "a" ). Insert the heater vertically, with the tip directed downwards, between the clamp and the roll, then clasp the heaters tip.
3. Coil the Rollmax heater by slowly rotating the hand grip, whilst holding the heater in a vertical position.
4. Keep a minimum 30 mm straight length from the beginning of the cable junction. This minimum length from the junction should never be bent.
ROLLMAX cross section mm Minimum coil diameter (heated part) mm Minimum bending radius (unheated part)mm
1.1 x 1.9 5 2.5
1.3 x 2.3 6 3
1.8 x 3.2 8 4
2.2 x 4.2 9 4.5
3.3 x 3.3 10 5
3.3 10 5
3.7 10 5

Customizing the orientation of the cable outlet
- Insert the coiled heater in the bending device next to the mandrel (see "c" ), which consists of two short vertical rods, and bend to the desired angle.
- Never bend below the minimum bending radius indicated on the chart.

Stretching one or more spires axially
- Install the coiled heater on the stretching device (see "b").
- Insert the two metal sheets so that the spires to be stretched are in between the sheets (the sheets should be inserted for at least three quarters of the coil's diameter).
- Rotate the hand grip until reaching the desired stretching. Depending on the coil diameter, do not stretch to a pitch of more than 1015 mm in order to avoid torsion or a reduction of the coils inner diameter. This would result in loss of cylindrical contact on the surface to be heated, reducing performance and duration of the heater.

Caution
- When you need a coiled Maxi-Rollmax, you must order a pre-coiled heater.
- In cases where pitch stretching using the manual machine results in the heaters torsion or in the reduction of the coils inner diameter, you must order a pre-coiled heater.
- When in need of a complex shape, other than a coil/spiral, you must order a pre-coiled heater.
- For high-quality coiling/shaping to tight dimensional tolerances, you must order a pre-coiled heater.
- When bending rectangular cross-section heaters avoid bending in the direction of the longer side: deformation and torsions that can originate could put to risk the heaters functionality.

Mandrels

Coil I.D.

Mandrel P/N

"A" Mandrel O.D.

"B"

10,0

ATTR000048

9,45

40

11,0

ATTR000065

10,50

40

12,0

ATTR000047

11,40

40

12,7

ATTR000020

12,00

40

13,0

ATTR000030

12,35

40

14,0

ATTR000044

13,30

40

15,0

ATTR000066

14,30

40

15,9

ATTR000057

15,17

40

16,0

ATTR000038

15,00

40

18,0

ATTR000043

17,00

50

19,0

ATTR000021

18,00

50

19,1

ATTR000058

18,05

50

20,0

ATTR000049

18,90

50

21,0

ATTR000067

19,90

50

22,0

ATTR000050

20,90

50

22,2

ATTR000059

21,12

50

23,0

ATTR000068

21,80

50

24,0

ATTR000069

22,80

50

25,0

ATTR000045

23,80

50

26,0

ATTR000070

24,80

50

28,0

ATTR000071

26,40

50

30,0

ATTR000036

28,40

50

31,8

ATTR000060

30,15

55

32,0

ATTR000051

30,40

55

33,0

ATTR000072

31,20

55

34,0

ATTR000073

32,20

55

35,0

ATTR000039

33,00

55

36,0

ATTR000074

34,00

55

37,0

ATTR000075

34,90

55

38,0

ATTR000076

35,90

55

40,0

ATTR000040

36,90

60

42,0

ATTR000077

39,80

60

44,0

ATTR000078

41,80

60

45,0

ATTR000046

42,50

60

50,0

ATTR000041

46,80

60

53,5

ATTR000064

49,90

60

55,0

ATTR000079

51,70

70

60,0

ATTR000080

54,80

70


 

Company | Organization | Products | Catalogues | Quality | Dealers | Site Map

1999 ROTFIL s.r.l. Via Praglia 15 10044 Pianezza TO (Italy) > How to reach us < Partita Iva 01846410015
T. +39-011-9683-111 - F. +39-011-9683-225 - e-mail:info@rotfil.com

Leggi la tua e-mail

web site by Anxera