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High Chromium Steel Grinding Bowl For Hard Material Pulverizing

Wear-Resistant Grinding Bowl for Mineral and Geological Sample Preparation
  • Material: High Chromium Alloy Steel
  • Chromium Content: 10–14%
  • Hardness: HRC 58–63
  • Components: Grinding Bowl, Rings & Puck
  • Applications: Mineral Assay, Geological Samples & Laboratory Pulverizing
  • Customization: OEM Dimensions and Pulverizer Compatibility
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Product Overview

Qirun supplies wear-resistant high chromium grinding bowls for laboratory pulverizers used in mining, geological testing, and mineral sample preparation.

With high hardness and abrasion resistance, they are suitable for grinding quartz, iron ore, rocks, and cement clinker.

Available with matching grinding rings and pucks, our grinding bowls support OEM customization based on customer drawings and equipment requirements.

Technical Specifications

Parameter

Specification

Product Name

High Chromium Grinding Bowl

Brand

Qirun

Material

High Chromium Alloy Steel

Chromium Content

10–14%

Hardness

HRC 58–63

Manufacturing Process

Casting, Heat Treatment and Machining

Heat Treatment

Quenching and Tempering

Grinding Components

Bowl, Grinding Rings, Central Puck

Equipment Type

Laboratory Pulverizer / Vibratory Cup Mill

Sample Materials

Mineral Ores, Quartz, Rocks, Cement Clinker and Slag

Application

Geological Testing, Mineral Assay, Laboratory Sample Preparation

Customization

Bowl Dimensions, Component Configurations and OEM Drawings

Compatibility

According to Pulverizer Model and Technical Dimensions

Note: Material composition and hardness values are based on the currently published product specifications. Exact dimensions, capacity, equipment compatibility, and supplied components should be confirmed before ordering.

Key Features of High Chromium Grinding Bowls

1. High Hardness and Wear Resistance

The grinding bowl is manufactured from high chromium alloy steel with a published hardness range of HRC 58–63.

Its hard alloy structure helps resist abrasion during repeated sample pulverizing operations.

This makes it suitable for grinding hard mineral samples where continuous contact with abrasive particles can cause significant wear.

2. Suitable for Hard and Brittle Samples

The grinding bowl is designed for sample preparation involving materials such as:

  • Iron ore and mineral ores

  • Quartz and geological rocks

  • Cement clinker

  • Industrial slag

  • Selected brittle industrial materials

Actual grinding performance depends on sample hardness, particle size, grinding time, and pulverizer operating parameters.

3. Grinding Bowl, Rings and Puck Configuration

Depending on the pulverizer design, the grinding assembly can include a bowl, concentric grinding rings, and a central puck.

During operation, these components move within the bowl and apply repeated impact, compression, and friction to the sample.

This arrangement supports the reduction of solid materials into finer particles for laboratory analysis.

Grinding component dimensions and configurations must match the selected pulverizer model.

4. Wear-Resistant Inner Surface

The grinding bowl features a machined inner surface designed for repeated contact with grinding media and sample materials.

Appropriate surface finishing helps support sample discharge and routine cleaning between grinding cycles.

Regular inspection and cleaning remain important to minimize sample carryover and potential contamination.

5. Custom Dimensions for Laboratory Pulverizers

Qirun supports customized grinding bowl manufacturing according to customer equipment specifications.

Key dimensions can include:

  • Bowl inner diameter and depth

  • External diameter and overall height

  • Grinding ring dimensions

  • Central puck dimensions

  • Mounting and clamping surfaces

  • Required machining tolerances

All custom specifications should be reviewed against the pulverizer's mechanical and operating requirements before production.

High Chromium Grinding Bowl Material Properties

Material selection affects grinding bowl wear resistance, maintenance requirements, and potential sample contamination.

High chromium alloy steel combines a hard metallic structure with wear-resistant alloy constituents.

The published chromium content of 10–14% and hardness of HRC 58–63 make this grinding bowl an option for abrasive mineral sample preparation.

High Chromium Steel vs. Other Grinding Bowl Materials

Material

Key Characteristics

Selection Considerations

High Chromium Steel

High hardness and abrasion resistance

Hard, abrasive mineral samples

65Mn Steel

Heat-treatable steel with useful strength and wear properties

Applications requiring a different toughness and wear balance

Tungsten Carbide

Very high hardness and excellent abrasion resistance

Highly abrasive samples; higher material cost

Ceramic Materials

Depending on composition, high hardness and chemical stability

Applications with specific contamination requirements

The appropriate grinding bowl material should be selected based on the sample composition, pulverizer compatibility, required particle size, and analytical method.

OEM Laboratory Grinding Bowl Manufacturing

Qirun provides manufacturing support for replacement grinding bowls and associated wear-resistant components.

Customers can submit pulverizer model information, dimensional drawings, or existing component specifications for technical review.

Custom Manufacturing Options

  • High chromium alloy material specifications

  • Grinding bowl dimensions and cavity geometry

  • Matching grinding rings and puck dimensions

  • Machining of mounting and contact surfaces

  • Custom replacement parts according to drawings

  • Quality inspection requirements agreed before production

Information Required for a Quotation

Please provide the following information:

  1. Pulverizer manufacturer and model

  2. Existing grinding bowl dimensions or drawings

  3. Required bowl capacity, if applicable

  4. Grinding ring and puck configuration

  5. Preferred material grade and hardness

  6. Required quantity

  7. Sample materials and application requirements

This information allows our team to review manufacturing feasibility and component compatibility.

Request a Custom High Chromium Grinding Bowl

Looking for a wear-resistant grinding bowl for your laboratory pulverizer?

Qirun supplies high chromium grinding bowls and customized replacement grinding components for mining, geological, cement, and industrial laboratory applications.

Contact us with your pulverizer model, grinding bowl dimensions, technical drawings, or material requirements.

We can help review your specifications and provide a quotation for suitable replacement components.

Email: vip@qrcrusher.com

Request a Quote | Submit Your Drawings

Applications of High Chromium Grinding Bowls

Mining and Mineral Exploration

High chromium grinding bowls are used to prepare ore and rock samples for laboratory testing.

Sample pulverizing helps produce fine material for mineral identification, elemental analysis, and ore characterization.

Typical samples include iron ore, copper-bearing minerals, and other geological materials.

Geological Sample Preparation

Geological laboratories process rock cores, soil-related mineral samples, and other solid geological materials.

Grinding bowls help reduce suitable brittle samples into fine powders for subsequent testing and analysis.

Cement and Clinker Testing

Cement laboratories prepare clinker, raw materials, and other cement-related samples for quality control.

High chromium grinding bowls can be used where the sample characteristics and analytical contamination limits permit.

Metallurgical and Industrial Laboratories

Metallurgical testing frequently requires consistent preparation of slag, ore, and other industrial mineral samples.

Grinding bowl selection should consider the material's abrasiveness and any analytical sensitivity to chromium or iron contamination.

Frequently Asked Questions

What is a high chromium grinding bowl?

A high chromium grinding bowl is a wear-resistant vessel used in laboratory pulverizing equipment to reduce hard or brittle solid samples into fine particles. It is commonly used for mineral, geological, and industrial sample preparation.

What is the hardness of your high chromium grinding bowl?

The currently published product hardness range is HRC 58–63. The final hardness specification should be confirmed according to the selected material and manufacturing requirements.

What materials can be pulverized using a high chromium grinding bowl?

Suitable applications may include quartz, iron ore, mineral rocks, cement clinker, and industrial slag. The selected pulverizer must also be capable of processing the material.

What is the difference between a high chromium grinding bowl and a tungsten carbide grinding bowl?

High chromium steel offers high hardness and abrasion resistance at a different material cost and performance balance. Tungsten carbide is substantially harder and can offer superior abrasion resistance for highly abrasive samples. Material selection should also account for possible sample contamination.

Can Qirun manufacture grinding bowls according to drawings?

Yes. Qirun supports custom manufacturing according to customer drawings, component dimensions, and material requirements.

Does the grinding bowl include rings and a puck?

Grinding bowl assemblies may include matching rings and a central puck. The exact supply configuration should be confirmed when requesting a quotation.

Can this grinding bowl be used for XRF or XRD sample preparation?

It may be used to prepare suitable samples for subsequent XRF or XRD analysis, provided the grinding process meets the laboratory's particle-size and contamination requirements. Steel wear particles can introduce iron, chromium, or other elements, so the bowl material must be evaluated against the analytical method.

How can I find a compatible replacement grinding bowl?

Provide the pulverizer model, original bowl dimensions, clamping configuration, and grinding component details. Qirun can review the supplied information to determine available manufacturing options.

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