Guangzhou, Guangdong , China.

[email protected]

+86 13539860818

Nano microporous insulation boards for high-temperature industrial applications

About Us

Guangzhou Anchor Technology factory building and manufacturing facilities

Welcome to Guangzhou Anchor Technology Co., Ltd., a manufacturer of nano-microporous insulation boards for high-temperature industrial applications. Our boards combine fumed silica with infrared opacifiers and fibre reinforcement to deliver measured thermal conductivity from 0.021 W/(m·K) at 200 °C to 0.034 W/(m·K) at 800 °C — equivalent heat-stopping performance at a fraction of the thickness of conventional insulation.

Our application engineers support projects across steelmaking, petrochemicals, ceramics, glass, kiln and furnace linings, cold-chain transport, battery safety, and new-energy vehicles. We supply standard flat boards, CNC-cut arc segments, and custom-formed 3D parts, with facing options including aluminium foil, glass-fibre cloth, and PE shrink film.

We publish our measured values — density, thermal conductivity at four temperature points, and dimensional tolerance — on every datasheet, and we quote lead times as working-day ranges rather than guaranteed dates. Before you commit to a specification, a complimentary consultation with our engineering team is available.

Anchor-Microporous operates as a microporous insulation supplier and factory-direct manufacturer: standard and custom boards ship from our Guangzhou facility to steel, furnace, kiln, and equipment customers worldwide, with OEM and ODM service available for partners who need their own specification or branding.

Our Factory & Production Base

Our production base runs one integrated quality system across the full microporous insulation product range — standard rigid boards, flexible sheets, formed 3D shapes, and powder grade. Board forming, CNC precision cutting, facing lamination (PE film, aluminium foil, glass-fibre fabric), and final inspection are handled under one roof, so tolerances, facing quality, and batch traceability are controlled consistently.

  • Standard boards, flexible sheets, and formed 3D shapes from one core fumed-silica formulation
  • CNC cutting for custom shapes, arc segments, and tight dimensional tolerances
  • Batch traceability from raw fumed silica to the finished board

Quality Control & Batch Testing

Every production batch is sampled and tested before packing. Thermal conductivity is verified at four temperature points (200 / 400 / 600 / 800 °C), and boards are checked for density, thickness tolerance, and surface integrity. Test data is recorded per batch and compiled into a mill-test report that ships with the lot, so customers can trace the performance of the exact material they receive. Third-party testing can be arranged on request for project orders.

Why Engineers Choose Anchor-tech

  • One fumed-silica formulation across every form — rigid boards in 1000 × 615 mm and 10–50 mm thicknesses, flexible sheets, CNC-cut arc segments, and powder grade all share the same core material, so a mixed specification behaves predictably.
  • A lining calculation with every quotation — send us the drawing, the shell temperature reading, or your target surface temperature, and our engineers return the recommended board thickness and build-up with the heat-loss basis shown.
  • Custom geometries quoted from your drawing — arc segments, tight-tolerance cuts, and formed 3D parts are priced against the geometry you send, with the set-up cost shown separately.
  • English documentation from the first reply — TDS, SDS, and installation guidance arrive with the quotation, so your procurement and QA teams can review the specification before an order is placed.

Why engineering buyers trust Anchor-tech

Published thermal data

Our standard microporous insulation board carries four-point thermal-conductivity data — 0.021 W/(m·K) at 200 °C, 0.025 at 400 °C, 0.028 at 600 °C, and 0.034 at 800 °C — the same temperature points a furnace-backup design references. Boards are produced in densities of 220–280 kg/m³ (the 250–350 kg/m³ range gives the best balance of conductivity and handling), from fumed silica with infrared opacifiers and a small fibre reinforcement. Standard boards carry a 1100 °C classification temperature and are rated for continuous service up to 1000 °C; hot-face shrinkage stays below 2% at 800 °C.

Typical ladle backup-layer builds

Ladle backup insulation is specified from the working lining outward. A representative build places a thin microporous board — typically 5–7 mm — directly against the steel shell, followed by a lightweight or high-alumina brick course, a castable layer, and finally the working brick. Keeping that first layer thin is deliberate: it can be added to an existing lining without redesigning the refractory stack or enlarging the shell. Reported shell-temperature reductions for builds of this type span a wide band, roughly 80–130 °C, and the width of that band is the useful part — the outcome depends on shell geometry, ambient conditions and the working lining, so a single figure quoted without the lining drawing should be read with caution. You can check a build against your own target shell temperature with our ladle insulation thickness calculator, or send us the lining drawing and we will review it.

Honest specifications

We state the limits, not just the headline numbers. Standard boards are stocked at 1000 × 615 mm in thicknesses of 10–50 mm; sizes outside that matrix are custom and carry a set-up cost. Above the 1000 °C continuous-service limit, shrinkage increases and the board should be de-rated in design — we say so at quotation stage rather than after delivery. Furnace atmosphere matters too: thermal conductivity is lowest under vacuum (around 0.01 W/(m·K)) and higher in hydrogen, so atmosphere-specific selection is part of our sizing support. Lead times are quoted as working-day ranges, because ocean freight and customs clearance introduce variance we do not control.

Application depth

One board formulation covers the whole steelmaking route, so a single grade and a single quality system carry from the ladle through to the reheat furnace. The board works as a backup layer behind the working lining in ladles, tundishes and torpedo ladles; as a wrap on hot-blast ducts, RH degasser walls and walking-beam furnace water-cooled skids; and as a thin alternative to thick insulating brick wherever lining space is already fixed. Each of those positions has its own design note on this site, so the constraints that apply to your route are one click away.

Frequently Asked Questions

Quick technical and commercial answers about our microporous insulation boards for engineering buyers, procurement teams, and installers. For project-specific questions not covered here, contact our application engineering team.

We supply one core fumed-silica microporous formulation across standard rigid boards, flexible sheets, formed 3D shapes, and powder grade. Thermal conductivity is published at four temperature points — 0.021 / 0.025 / 0.028 / 0.034 W/(m·K) at 200 / 400 / 600 / 800 °C — and boards carry a 1100 °C classification temperature with continuous service rated to 1000 °C.
Each shipment carries a mill-test report with density, thermal conductivity, and dimensional verification traceable to the production lot, together with a material safety data sheet and a technical data sheet. We publish what we measure — the datasheet values are lot-average measured values, not single-point marketing estimates.
Because every product line shares one core fumed-silica formulation and one quality system, the chemistry and thermal values on one datasheet carry across the full range. A mixed order of standard boards and arc segments for the same ladle stays consistent from lot to lot.
Boards are vacuum-sealed in PE film to prevent moisture ingress during transit and stacked on export-grade pallets or crates. Each shipment carries a packing list, commercial invoice, and mill-test report.
Every production lot is sampled and tested for density, thermal conductivity at four temperature points, dimensional tolerance, and compressive strength. Results are compiled into a mill-test report that ships with the lot, and thermal-conductivity verification is performed on a heat-flow meter.
We stand behind our products with a warranty against manufacturing defects. If a field issue is reported, we re-test the archived lot sample and work with the customer to identify the root cause — whether material or installation — and resolve it fairly. Warranty terms are confirmed at the point of order.