MTL for cement burning and sintering zone with better coating

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Basic Specifications

Model NO.

MTL

Application Area

Sintering Zone in Rotary Kiln

Size

Customer Made

Bulk Density

2.9-3.0g/cm3

Apparent Porosity

17%

Tsr 950℃

100 Cycle

Rul

1650-1700℃

CCS MPa

60

Type

Refractory Material

Material

Magnesia-Hecynite

Transport Package

Pallet

Production Capacity

100,000 tons

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Product Description

Magnesia hercynite brick is a new generation of chromium-free alkaline refractory material designed for large-scale rotary kiln firing zones. These bricks feature high compressive strength, excellent thermal shock stability, and superior thermal creep resistance. They offer exceptional resistance to erosion and penetration with a high load softening temperature. Utilizing patented hercynite as a raw material, they provide a superior kiln coating effect compared to traditional magnesia chrome bricks.

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Key Features

Superior synthetic purity and activity of self-developed sintered hercynite.
Outstanding formation of uniform and stable kiln coating.
Excellent thermal shock stability through crystal spinel precipitation.
Low thermal conductivity, maintaining kiln shell temperatures between 230~280ºC.

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Technical Properties

Chemical Composition	Unit	Spec	Typical
MgO	%	≥85	85 - 88
Al2O3	%	-	4 - 6
SiO2	%	-	4
Fe2O3	%	-	0.7
CaO	%	-	1.4

Physical Properties	Unit	Spec	Typical
Bulk Density	g/cm3	≥2.9	2.9 - 3.0
Apparent Porosity	%	≤17	14 - 17
Thermal Shock Resistance (950°C air)	cycle	≥100	100
Refractoriness Under Load	°C	≥1650	>1650
Cold Crushing Strength	MPa	≥45	60

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Product Showcase

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Package & Logistics

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Quality & Facilities

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Certificates & Global Presence

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Our Professional Services

Whole package refractory linings design for kilns.
Efficient and economical refractories recommendations.
Sample properties test reports from authority institutes (SGS/CNAS).
On-site kiln lining installation supervision and inspection.
Ovality measurement of rotary kiln shells during operation.

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Frequently Asked Questions

Do you provide free samples?

Yes, free samples are available. Generally, the buyer shall bear the delivery cost.

How do you ensure product quality?

We maintain a complete QC system for chemical composition and physical properties for every production process. All goods are tested post-production, and quality certificates are provided upon shipment.

What is the typical lead time?

During peak season (Nov-Feb), delivery is within 60 days. During normal periods (Feb-Oct), delivery is within 30 days after receiving the advance payment.

What are your payment terms?

We typically accept a 30% deposit with the 70% balance against the BL copy, or by LC. Other terms can be discussed.

Are you a manufacturer or a trading company?

We are a professional manufacturer with over 40 years of history in the refractory industry.

What international standards do your products meet?

Our products meet global standards including ASTM, ASME, AMS, DIN, and JIS. Third-party testing is always available.