Standard Coil Heaters

A range of coil heaters that are ideal for: Hot Sprue Bushings, Sealing Bars & Dies, Hot Metal Forming Punches.

• Fibreglass, Stainless Steel Armour & Stainless Steel Braid Lead Options
• A wide range of lengths are available up to 1650mm (1500mm Heated)
• Wattages are available up to 1000W
• Optional Built-In Type ‘J’ Thermocouple.
• Flat, Square Or Round Profiles.

Technical Specification

Value

Sheath Material

High-Nickel Alloy (CrNi-Steel, Material No: 1.4541)

Heating Conductor

Nickel / Chromium (NiCr 8020, Material No: 2.4869)

Insulation Material

Highly Compressed Magnesium Oxide (MgO)

Voltage Range

240 - 250V ac

Leakage Current

< 0.5 mA

Insulation Resistance

Approx. 10MOhms

Wattage Tolerance

+/- 10% (A deviation in power is possible after bending, the amount will depend upon the shape.)

Thermocouple

Type 'J', Fe / CuNi

Standard Cold Length

2.2 x 4.2 = 90mm, 3.2 x 3.2 = 100mm, 3mm dia = 100mm, 4mm dia = 150mm

Max. Operating Temperature

750^oC (1382^oF)

Min. Forming Radius

Flat: 2.2 x 4.2 = 5.00mm, 1.8 x 3.2 = 4.00mm
Square: All sizes = 6.00mm
Round: 4.0 = 6.00mm, 3.0 = 4.00mm

Cross Sections

As well as a variety of termination styles, coils are available with flat, square and round cross-sections. The dimensions are as follows.

Note: sizes marked with an '*' are the most popular and are kept in stock. Most stock items have integral thermocouples.

Leads

Standard leads are 1015mm in length using flexible standard nickel conductors with Teflon insulation. Optionally, the leads can be insulated using Fibreglass, Stainless Steel or Stainless Steel Armour.

Ordering Information

When ordering, please specify:

• Dimensions: L1, L2, OD, ID (See diagram)
• Termination style (1, 2 or 3: See diagram)
• Wattage
• Voltage
• Lead Length
• Over-Braiding type: Fibreglass sleeving, Stainless steel braid or Stainless steel armour.

Also, please specify whether the coil is to be tightly wound or evenly spaced.