Microtubular Coil Heaters - ROLLMAX
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ROLLMAX MICROTUBULAR HEATERS

Advantages / Characteristics Table of standard types available from stock 9- Cable protection options 15- Mini Rollmax with Minimax clamping band 16- High precision heating bushes Formax 17- Heating elements with reflector tubes "Easymax" 19- Coiling machine for Rollmax

ROLLMAX MICROTUBOLAR HEATERS ROLLMAX microtubolar heaters are revolutionary heaters, able to work also in most difficult conditions. The external sheath is made in CrNi steel in which inside a resistive wire, uniformly distributed, is insulated in a high compressed MgO compound . After annealing in controlled atmosphere, they become very soft to coil thus allowing also very complicated shapes with very small bending radii. Thanks to their versatility and reliability they are suitable for a lot of different applications . Developed for solving the problem of the differentiated heating of the...

THE MAIN ADVANTAGES OF ROLLMAX MICROTUBOLAR HEATERS - Wide contact surface to allow perfect heat transmission between heater and surface to be heated - Optimal electrical insulation and extremely long life - Sturdy construction resisting to mechanical shocks - High working temperatures (up to 750°C) - Built Thermocouple for high precision thermal control (J - standard , K - upon request) - Minimal thermal inertia - Possibility to be coiled / bended also in very complex shapes - Possibility to be incorporated in brass cast elements - Eight different cross sections to best fit with every...

To order special ROLLMAX 3,3x3,3 please specify also: ■ Total straight length ■ Unheated length (standard 45 mm) ■ Cable length (1000 mm standard) ■ Cable protection (see page 9) ■ T/C type (J or K , grounded or ungrounded) TECHNICAL DATA ■ Availability from stock: see table on page 8 ■ Square cross section 3,3x3,3 ■ Sheath material: CrNi Steel ■ Insulation: high compressed MgO ■ Resistive wire: NiCr 8020 ■ Standard Wattage tolerance ± 10% ■ High voltage strength (cold): 800V ■ Insulation resistance (cold): >10 M Ohm at ■ Max total straight length: 3000 mm ■ Minimum bending radius: 4 mm ■...

To order special ROLLMAX 2,2x4,2 please specify also: ■ Total straight length ■ Unheated length (standard 45 mm) ■ Cable length (1000 mm standard) ■ Cable protection (see page 9) ■ T/C type (J or K , grounded or ungrounded) TECHNICAL DATA ■ Availability from stock: see table on page 8 ■ Flat cross section 2,2x4,2 ■ Sheath material: CrNi Steel ■ Insulation: high compressed MgO ■ Resistive wire: NiCr 8020 ■ Standard Wattage tolerance ± 10% ■ High voltage strength (cold): 800V ■ Insulation resistance (cold): >10 M Ohm at ■ Max total straight length: 3000 mm ■ Minimum bending radius: 4 mm ■...

Table of standard types available from stock Without Thermocouple With Thermocouple

CABLE PROTECTION OPTIONS Standard solution for all types available from stock PTFE insulated Nickel cables protected by a strong, flexible, thick glass / silicone sheath Other options upon request: PTFE insulated Nickel cables protected by a flexible metal PTFE insulated Nickel cables non protected Specific solution for Mini Rollmax with two single adapters Standard cable length 1 m ORIENTATION OF CABLE OUTLET

TECHNICAL DATA ■ Round cross section 3,3 and 3,7 ■ Sheath material: CrNi Steel ■ Insulation: high compressed MgO ■ Resistive wire: NiCr 8020 ■ Standard Wattage tolerance ± 10% ■ High voltage strength (cold): 800V ■ Insulation resistance (cold): >10 M Ohm at ■ Max total straight length: 3000 mm ■ Minimum bending radius: 4 mm ■ Available also with built in thermocouple type ■ Available also with calibrated reflector tubes or clamping band upon request ■ SC400 sealing (page 18) available upon To order ROLLMAX 3,3 and 3,7 round please ■ Total straight length I ■ Unheated length (standard 45 mm)...

TECHNICAL DATA Flat cross section 1,8x3,2 Sheath material: CrNi Steel Insulation: high compressed MgO Resistive wire: NiCr 8020 Standard Wattage tolerance ± 10% High voltage strength (cold): 800V Insulation resistance (cold): >10 M Ohm at Max total straight length: 3000 mm Minimum bending radius: 3 mm Available also with calibrated reflector tubes or clamping band upon request SC400 sealing (page 18) available upon To order ROLLMAX 1,8x3,2 please specify: ■ Total straight length I ■ Unheated length (standard 45 mm) ■ Cable length (1000 mm standard) I ■ Cable protection (see page 9) If...

TECHNICAL DATA Note: if "U" bend as in figure is required, this must be made in Rotfil Round cross section 1,8 Sheath material: CrNi Steel or Nickel Insulation: high compressed MgO Resistive wire: NiCr 8020 Standard Wattage tolerance ± 10% High voltage strength (cold): 800V Insulation resistance (cold): >10 M Ohm at Max total straight length: 3000 mm Minimum bending radius: 3 mm Available also with calibrated reflector tubes or clamping band upon request SC400 sealing (page 18) available upon ■ Sheath material (CrNi Steel or Nickel) ■ Total straight length ■ Cables length (1000 mm standard)...

MINI ROLLMAX Note: if "U" bending as in figure is required, this must be made in Rotfil TECHNICAL DATA ■ Flat cross section 1,3x2,3 ■ Sheath material: CrNi Steel or Nickel ■ Insulation: high compressed MgO ■ Resistive wire: NiCr 8020 ■ Standard Wattage tolerance ± 10% ■ High voltage strength (cold): 800V ■ Insulation resistance (cold): >10 M Ohm at ■ Max total straight length: 3000 mm ■ Minimum bending radius: 3 mm ■ Available also with calibrated reflector tubes or clamping band upon request To order MINI ROLLMAX 1,3x2,3 please specify: ■ Sheath material (CrNi Steel or Nickel) ■ Total...

MAXI ROLLMAX MAXI ROLLMAX are produced with the same technology used for ROLLMAX heaters, but with their 4,5x8 mm flat cross section can withstand very high specific load up to 8 W / sqcm (20 W / linear cm). They are specially suitable for heating of large nozzles Despite their large cross section they are still soft enough to allow to be coiled / bended in very complicated shapes with narrow bending radii (10 mm). Inserted in 4,6x8 mm grooves MAXIROLLMAX are also ideal for heating of hot plates of hot runner systems, allowing the largest possible surface for optimal heat exchange....