Description

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Key Advantages of rotary kiln tyre ring

Allows Axial Thermal Expansion

As the rotary kiln heats up, the kiln shell expands axially toward the discharge end. The floating-fit structure allows the shell and supporting plates to move relative to the inner surface of the tyre, preventing the tyre from restricting axial thermal expansion and reducing thermal stress

Accommodates Radial Thermal Expansio

The kiln shell expands in diameter at high temperatures. The clearance between the tyre and supporting plates provides room for radial expansion, preventing the shell from being tightly restrained and reducing the risk of local stress, shell deformation, and refractory brick damage

Helps Reduce the Risk of Tyre Crackin

With a floating-fit structure, the tyre mainly bears the contact pressure transferred from the support rollers rather than additional expansion stress from the kiln shell. This helps reduce extra assembly stress caused by differences in thermal expansion and heating rates, lowering the risk of tyre cracks.

Easy Maintenance and Replacemen

If the supporting plates become worn or locally damaged during operation, they can be inspected and replaced during shutdown without removing the entire tyre

How to Choose a rotary kiln tyre ring - Cast or Forged Steel?

Casting means pouring molten steel into a mold and allowing it to cool and form. Forging uses a solid steel billet, which is formed by high-temperature ring rolling and pressure forming.

Both manufacturing methods are used for rotary kiln tyre ring. From a total cost perspective, cast tyres generally have a lower manufacturing cost and offer a cost-effective solution. Forged tyres are more suitable for heavy-duty applications, alternating loads, and rotary kilns requiring a longer service life.

Processing method	Brand/Chemical Composition (wt%)	C	Si	Mn	P	S	Cr	Applicable Scenarios
Casting	ZG35Mn	0.32–0.40	0.60–0.80	1.10–1.40	≤0.040	≤0.040	≤0.30	Medium-load cement rotary kiln
	ZG35SiMn	0.30–0.40	0.60–0.90	1.00–1.40	≤0.035	≤0.035	-	Old kiln renovation, medium-load kiln
	ZG45	0.42–0.50	0.20–0.45	0.50–0.80	0.040	0.040		Small, light-load rotary kiln
	ZG35CrMo	0.30–0.40	0.17–0.37	0.50–0.80	0.035	0.035	0.20–0.30	medium and high load kilns
forging	35SiMn	0.32–0.40	1.10–1.40	1.10–1.40	≤0.035	≤0.035	-	The national standard stipulates that the performance of forged tires shall not be lower than that of this grade.
	42CrMo	0.38–0.45	0.17–0.37	0.50–0.80	≤0.035	≤0.035	0.90–1.20	Large new kilns, replacement parts, and imported supporting equipment
	34CrNiMo6	0.30–0.38	0.15–0.35	0.40–0.80	-	-	1.40–1.70	Ultra-high load, imported large-scale cement kiln

Physical properties

There are many models of rotary-kiln-tyre-ring. If you want to know the physical properties, we will briefly share two of them. The following is the relevant physical information.

ZG310-570-- GB/T 11352-2009 standard

Item	Value
Tensile strength Rm	≥570 MPa
Yield strength ReL	≥310 MPa
Elongation after break A	≥15 %
Area shrinkage Z	≥21 %
Impact absorption energy KV2	≥15 J(KU≥24 J)

ZG42CrMo-- B/ZQ 4297-1986 standard

Section size	Tensile strength σb	Yield σs	Elongation δ	Hardness HB
~30 mm	740–880 MPa	≥540 MPa	≥12 %	220–260
150–250 mm	650–800 MPa	≥400 MPa	≥10 %	195–240
250–400 mm	650–800 MPa	≥350 MPa	≥8 %	195–240

Estimated Ocean Shipping Time from China

Based on shipments from China, the following table provides an overview of the estimated ocean transit time for rotary kiln tyres after they are packed in wooden cases or custom-made.

For most destinations, ocean shipping usually takes around one month. If you need a sample or want to receive the product faster, please contact us for air freight options

area	Representing the country	Time
Asia	Vietnam, Thailand, India, etc.	7-25days
Europe	Germany, the Netherlands, Italy, etc.	30-40days
North America	United States, Canada, etc.	30-40days
South America	Brazil, Chile, Peru, etc.	30-50days
Africa	South Africa, Egypt, etc.	30-45days
Oceania	Australia, New Zealand, etc.	25-35days

How to Customize?

We can customize rotary kiln tyre ring according to your drawings, dimensions, material requirements, and working conditions. We truly offer "one product per person," protecting your customization data so that you can immediately produce the same product next time, saving communication time. Our customization options include:

Customizable dimensions and material grades

Choose between casting or forging processes

Suitable for various rotary kiln applications

Quality inspection before shipment

Please send us your drawings or dimensions to receive a customized quote!

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