Mica Roll for Induction Furnace — WedgeMICA Slip-Plane Mica Sheet Roll 0.2–5 mm

Overview

A mica roll for induction furnaces is mica paper laminated to a glass, polyester or ceramic backing and supplied on a roll. Placed between the refractory crucible and the copper coil, it acts as a slip plane: it protects the coil from refractory expansion, blocks leakage currents and makes the crucible easier to remove at relining.

The WedgeMICA WMR series comes in five constructions, from 0.2 mm to 5 mm thick, as rolls or as cut sheets.

Mica roll constructions

Grade	Construction	Thickness	Supply
WMR-GMG	Glass + mica paper + glass	0.2–5 mm	Roll or cut sheet
WMR-GMP	Glass + mica paper + polyester	0.2–5 mm	Roll or cut sheet
WMR-GM	Glass + mica paper	0.2–5 mm	Roll or cut sheet
WMR-PM	Polyester + mica paper	0.2–5 mm	Roll or cut sheet
WMR-CM	Ceramic + mica paper	0.2–5 mm	Roll or cut sheet

For the induction furnace slip plane between crucible and coil, the WedgeMICA catalogue recommends WMR-GMG, WMR-GM or WMR-CM.

Mica roll price

WedgeMICA mica rolls are quoted on request. The price depends on the mica type (muscovite, phlogopite or synthetic), thickness, size or drawing, quantity and any test requirement, so every enquiry gets a firm quotation in ₹ INR and $ USD with the technical data sheet attached. MOQ and lead time are confirmed with each quotation.

Quote the Wedge SKU to speed things up: family-grade-thickness (mm)-size. Size codes: 1006 = 1000 × 600 mm, 1012 = 1000 × 1200 mm, 1024 = 1000 × 2400 mm, CUT = cut to drawing.

Applications

• Induction melting furnaces — slip plane between crucible lining and coil.
• Coil protection — barrier against refractory expansion and leakage currents.
• Relining — easier crucible push-out and coil inspection.
• Pair with WMB-P800 rigid mica board and WMT-P800 mica tubes for coil supports, spacers and top / bottom panels.

Installation

1. Clean the coil grout surface and check it is dry.
2. Line the coil bore with the mica roll, overlapping joints so there is no gap through to the coil.
3. Fit the former and ram the refractory lining as normal.
4. At relining, inspect the mica layer and replace it with the new lining.

Why buy mica insulation from Wedge Industries Limited

• One source for the whole WedgeMICA range — rigid boards, heater plates, flexible sheets, rolls, tubes, gaskets, natural muscovite mica and machined parts — in muscovite, phlogopite and synthetic mica.
• Technical Data Sheet with every quotation and a Material Test Certificate with batch test values on every delivery.
• Sample pieces of board, sheet and natural mica available for evaluation and approval before bulk orders.
• In-house CNC fabrication: parts cut, drilled, milled, turned and threaded to your DXF / DWG / PDF drawing, counted and labelled by drawing number.
• Export packing — sheets packed flat and interleaved on wooden pallets or in wooden cases — for customers in 45+ countries across the Gulf, Europe, Africa and South East Asia.
• Office in Gurugram (Galleria Tower, DLF Phase 4) with group companies in the United Kingdom and Hong Kong for export documentation.

Frequently asked questions

Related mica products

• Mica insulation — full WedgeMICA range, grades and selection guide
• Rigid mica board WMB (mica sheet 550 / 800 / 1100 °C)
• Mica heater plates WMH (0.15–1.5 mm)
• Flexible mica sheet WMF
• Mica tubes and bushes WMT
• Mica gasket sheet WMG
• Natural ruby muscovite mica WMN
• Machined mica parts to drawing WMX
• Glass mica tape
• Phlogopite mica paper
• Electrical insulation products
• High-temperature insulation
• Microporous insulation