B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills
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Product Highlights
- Gold Ore Primary Grinding: Designed for coarse-feed gold ore primary grinding applications.
- B2 & B3 Material Options: Provides different combinations of hardness, wear resistance and impact toughness.
- Large-Diameter Media: Available up to 150 mm for selected coarse-feed grinding circuits.
- High Impact Resistance: Forged structure and controlled heat treatment support repeated impact inside the mill.
- Stable Grinding Performance: Controlled hardness helps maintain predictable wear and grinding media consumption.
Product Attributes
- Customization
- Available
- Material
- B2;B3
- Content
- >90%
- Model NO.
- 80-150 mm
- Usage
- Construction, Machinery, Grind, Refractory Material
- Processing Type
- Forged
- Size
- 80-150 mm
- Color
- Black
- Customized
- Customized
- Product Name
- Forged Steel Ball
- Experience
- 20+ Years
- Surface Hardness
- 59-66 HRC
- Core Hardness
- 55-66 HRC
- Packaging Details
- Iron Drum/Ton Bag
- Standard
- ISO 9001; ISO 14001; ISO 45001;
- Transport
- by Sea
- Application
- Gold Ore Primary Grinding Mills
- Application 1
- Gold Ore Grinding Mills
- Transport Package
- Drum/Ton Bag
- Specification
- 80-150 mm
- Trademark
- JUNDA
- Origin
- China
- HS Code
- 7326110000
- Production Capacity
- 5000tons/Month
- Package Size
- 75.00cm * 75.00cm * 70.00cm
- Package Gross Weight
- 1002.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills
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B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills -
B2 B3 Forged Steel Balls Grinding Balls for Gold Ore Primary Grinding Mills
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Product Description
B2/B3 Forged Steel Grinding Balls for Gold Ore Primary Grinding Mills, 80-150 mm Update:April 13th, 2026
Designed for Coarse Feed and High-Impact Primary Grinding Conditions
JUNDA B2 and B3 forged steel grinding balls are designed for gold ore primary grinding applications where coarse feed, repeated impact and stable grinding performance are important considerations.
For primary grinding circuits, larger grinding media can provide higher impact energy to break coarse ore particles. B2 and B3 grades offer different combinations of hardness, toughness and wear resistance for different mill operating conditions.
Available in diameters from 20 to 150 mm, JUNDA can supply grinding balls according to mill type, feed size, ore characteristics and customer requirements.
Why Choose B2/B3 Grinding Balls for Gold Ore Primary Grinding?
1. Suitable for Coarse Primary Grinding
Larger grinding balls are commonly considered for primary grinding circuits handling relatively coarse gold ore feed, providing higher impact energy for initial particle breakage.
2. B2 and B3 Material Options
B2 provides a combination of hardness, wear resistance and impact toughness, while B3 offers a higher-alloy option for demanding impact and abrasion conditions.
3. Good Impact Resistance
Forged steel balls are manufactured with controlled forging and heat treatment to provide the toughness required for repeated impact inside grinding mills.
4. Stable Wear Performance
Controlled hardness and heat treatment help maintain predictable wear behavior during continuous grinding, supporting more stable grinding media consumption.
5. Multiple Ball Sizes
JUNDA supplies forged steel grinding balls from 20 to 150 mm. Larger sizes can be selected for primary grinding according to feed size, mill design and operating conditions.
Gold Ore Primary Grinding: Why Ball Size Matters
In a gold ore primary grinding circuit, the grinding media must break relatively coarse feed material efficiently before the ore enters downstream grinding and mineral recovery stages.
Ball diameter is therefore an important selection factor. Larger grinding balls provide greater impact energy, while smaller balls provide more contact points for finer grinding.
Ball size should be selected according to the mill design, feed size, ore hardness, target product size and operating conditions.
B2 vs. B3 for Gold Ore Primary Grinding
How to choose?
Choose B2 when wear resistance and overall grinding performance need to be balanced under normal primary grinding conditions.
Consider B3 when the grinding circuit involves higher impact loads, larger feed particles or more demanding abrasion conditions.
01.Gold Ore Ball Mills
Suitable for ball mill circuits used for primary grinding of gold-bearing ores, subject to mill design and operating conditions.
02.Primary Grinding Circuits
Designed for applications where coarse ore feed requires sufficient impact energy for initial particle size reduction.
03.Hard and Abrasive Gold Ores
B2 and B3 grades can be selected according to ore hardness, abrasiveness and impact conditions.
04.Large-Diameter Grinding Media Applications
Larger grinding balls can be considered for mills handling coarse feed where higher impact energy is required.
Which certifications has our company obtained?
Our operations and products are backed by key international certifications, including ISO 9001 for quality management, CE for the European market, and KOC for South Korea. These credentials are not just badges of compliance but essential enablers of our global reach, supporting our exports to a network of over 100 countries and reinforcing our clients' trust in our professional standards.
Designed for Coarse Feed and High-Impact Primary Grinding Conditions
JUNDA B2 and B3 forged steel grinding balls are designed for gold ore primary grinding applications where coarse feed, repeated impact and stable grinding performance are important considerations.
For primary grinding circuits, larger grinding media can provide higher impact energy to break coarse ore particles. B2 and B3 grades offer different combinations of hardness, toughness and wear resistance for different mill operating conditions.
Available in diameters from 20 to 150 mm, JUNDA can supply grinding balls according to mill type, feed size, ore characteristics and customer requirements.
Why Choose B2/B3 Grinding Balls for Gold Ore Primary Grinding?
1. Suitable for Coarse Primary Grinding
Larger grinding balls are commonly considered for primary grinding circuits handling relatively coarse gold ore feed, providing higher impact energy for initial particle breakage.
2. B2 and B3 Material Options
B2 provides a combination of hardness, wear resistance and impact toughness, while B3 offers a higher-alloy option for demanding impact and abrasion conditions.
3. Good Impact Resistance
Forged steel balls are manufactured with controlled forging and heat treatment to provide the toughness required for repeated impact inside grinding mills.
4. Stable Wear Performance
Controlled hardness and heat treatment help maintain predictable wear behavior during continuous grinding, supporting more stable grinding media consumption.
5. Multiple Ball Sizes
JUNDA supplies forged steel grinding balls from 20 to 150 mm. Larger sizes can be selected for primary grinding according to feed size, mill design and operating conditions.
Gold Ore Primary Grinding: Why Ball Size Matters
In a gold ore primary grinding circuit, the grinding media must break relatively coarse feed material efficiently before the ore enters downstream grinding and mineral recovery stages.
Ball diameter is therefore an important selection factor. Larger grinding balls provide greater impact energy, while smaller balls provide more contact points for finer grinding.
| Typical Selection Principle | ||
| Grinding Stage | Typical Ball Size | Main Purpose |
|---|---|---|
| Primary Grinding | 80-150 mm | Break coarse ore feed |
| Secondary Grinding | 50-90 mm | Further reduce particle size |
| Fine Grinding | 20-40 mm | Produce finer particle size |
B2 vs. B3 for Gold Ore Primary Grinding
| Material | Main Characteristics | Suitable Condition |
|---|---|---|
| B2 | High hardness, good wear resistance and good impact toughness | General primary grinding conditions |
| B3 | Balanced hardness, wear resistance and higher impact resistance for demanding conditions | Higher-impact or more abrasive primary grinding |
Choose B2 when wear resistance and overall grinding performance need to be balanced under normal primary grinding conditions.
Consider B3 when the grinding circuit involves higher impact loads, larger feed particles or more demanding abrasion conditions.
| Technical Specifications | |
| Item | Specification |
|---|---|
| Application | Gold Ore Primary Grinding |
| Material | B2 / B3 |
| Diameter | 20-150 mm |
| Recommended Primary Grinding Range | 80-150 mm |
| Manufacturing | Hot Forging + Heat Treatment |
| Surface Hardness | 59-66 HRC |
| Core / Volume Hardness | 55-66 HRC |
| Impact Toughness | ≥12 J/cm² |
| Breakage Rate | ≤1% |
| Inspection | Hardness, Diameter, Surface Quality and Other Agreed Parameters |
| Packaging | Iron Drum / Ton Bag |
| Customization | Available |
The recommended size range is a selection reference. Final ball diameter should be confirmed according to the mill and ore conditions.
| Technical parameters of forging steel ball | ||||||||||||
| Inch | Size | T weight | Tolerance(mm) | Material | Surface hardness(HRC) | Volume hardness(HRC) | ||||||
| 3/4" | D20mm | 0.037+/-0.005 | 2+/-1 | B2 | 63-66 | 63-66 | ||||||
| 1" | D25mm | 0.072+/-0.01 | 2+/-1 | B2 | 63-66 | 63-66 | ||||||
| 11/4" | D30mm | 0.13+/-0.02 | 2+/-1 | B2 | 63-66 | 63-66 | ||||||
| 11/2" | D40mm | 0.30+/-0.04 | 2+/-1 | B2 | 62-66 | 62-66 | ||||||
| 2" | D50mm | 0.6+/-0.05 | 2+/-1 | B2 | 62-65 | 61-64 | ||||||
| 21/2" | D60mm | 1.0+/-0.05 | 2+/-1.5 | B2 | 62-65 | 60-62 | ||||||
| 21/2" | D65mm | 1.3+/-0.05 | 2+/-1.5 | B2 | 61-64 | 60-62 | ||||||
| 21/2" | D65mm | 1.3+/-0.05 | 2+/-1.5 | B3 | 61-63 | 60-62 | ||||||
| 3" | D75mm | 2.0+/-0.06 | 3+/-2 | B3 | 61-63 | 60-62 | ||||||
| 3"(Hot rolled) | D80mm | 2.0+/-0.06 | 3+/-2 | B3 | 60-63 | 60-62 | ||||||
| 3"(Forged) | D80mm | 2.1+/-0.06 | 3+/-2 | B3 | 60-62 | 53-57 | ||||||
| 31/2" | D90mm | 3.0+/-0.07 | 3+/-2 | B3 | 60-63 | 59-62 | ||||||
| 4" | D100mm | 4.1+/-0.15 | 3+/-2 | B3 | 60-63 | 59-62 | ||||||
| 4.5" | D115mm | 6.3+/-0.15 | 3+/-2 | B3 | 60-63 | 57-60 | ||||||
| 5" | D125mm | 8.1+/-0.3 | 3+/-2 | B3 | 59-62 | 55-60 | ||||||
| Chemical composition | C% | Si% | Mn% | Cr% | P% | S% | Ni% | |||||
| B2 | 0.72-1.03 | 0.15-0.35 | 0.3-1.2 | 0.2-0.6 | ≤0.035 | ≤0.035 | i≤0.25 | |||||
| B3 | 0.53-0.88 | 1.2-2.00 | 0.50-1.20 | 0.7-1.20 | ≤0.035 | ≤0.035 | i≤0.25 | |||||
Optimize Your Gold Ore Grinding
Gold Ore Primary Grinding Applications01.Gold Ore Ball Mills
Suitable for ball mill circuits used for primary grinding of gold-bearing ores, subject to mill design and operating conditions.
02.Primary Grinding Circuits
Designed for applications where coarse ore feed requires sufficient impact energy for initial particle size reduction.
03.Hard and Abrasive Gold Ores
B2 and B3 grades can be selected according to ore hardness, abrasiveness and impact conditions.
04.Large-Diameter Grinding Media Applications
Larger grinding balls can be considered for mills handling coarse feed where higher impact energy is required.
Optimize Your Gold Ore Grinding
Which certifications has our company obtained?
Our operations and products are backed by key international certifications, including ISO 9001 for quality management, CE for the European market, and KOC for South Korea. These credentials are not just badges of compliance but essential enablers of our global reach, supporting our exports to a network of over 100 countries and reinforcing our clients' trust in our professional standards.
Q1: What's the delivery time?
A : The standard lead time is approximately 14 working days, depending on order quantity and production schedule.
Q2: What's package?
A: 1,000 kg Iron Drum / Ton Bag
Q3: Do you provide technical support?
A: We have a professional technical support team to provide timely assistance. We can also prepare technical documents according to your requirements. You can contact us by phone, online chat, WhatsApp or Skype.
Q4: What's the payment method?
A: T/T, Western Union, MoneyGram, L/C
Q5: How do you ensure the products arrive safely?
The grinding balls are securely packed in iron drums or ton bags for international transportation. We also inspect the products and packaging before shipment to ensure they meet the agreed specifications.
Optimize Your Gold Ore Grinding
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR255938". Items marked "
" are certified.
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Company Profile
JINAN JUNDA INDUSTRIAL TECHNOLOGY was established in 2005. We are a professional manufacturer and exporter of Forged Steel Balls, Cast Steel Balls, Steel Rods, Chrome Steel Balls, Carbon Steel Balls, Stainless Steel Balls, Garnet Sand, Steel Shot, Steel Grit, Bearing Steel Grit, Glass Beads, and other surface treatment abrasives.
Regarding garnet sand, we integrate mining, production, and sales, with adequate reserves. In recent years, our garnet sand production capacity has increased from thousands of tons to tens of thousands of tons. We have built a good reputation in the garnet industry worldwide.
Regarding steel shot, steel grit, and bearing steel grit, our products meet American SAE standards and are widely used in shipbuilding, molding, steel production, automobile manufacturing, container manufacturing, machinery manufacturing, pipeline anti-corrosion, aviation, granite cutting, and other industries.
Regarding glass beads, we can produce different types of road-marking glass beads, sandblasting glass beads, and grinding glass beads according to customers' specific requirements and relevant standards, including European Standards EN 1423 and EN 1424; American Standard AASHTO M247 Types 1 and 2; British Standard BS 6088 Classes A and B; Japanese Standard JIS R3301; And Korean Standard KSL 2521 Nos. 1 and 2.
Our philosophy is to build sustainable growth on a foundation of high quality and excellent customer service. We manufacture our products in accordance with ISO quality standards and provide in-depth application knowledge and professional technical support. Highly efficient logistics are central to our company culture, and JINAN JUNDA INDUSTRIAL strictly controls materials from source to production to ensure quality and consistency. Our products are exported to the USA, Germany, Japan, and more than 90 countries worldwide.
We welcome your inquiries about our current products and opportunities for new applications and cooperation.
About Our Factory & Business Background
- Address
- OUYA DAGUAN Shizhong District, Jinan, Shandong, China
- Terms of Payment
- T/T, LC, Western Union, D/P
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF, FAS, DDP
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- Qing Dao
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What grinding balls are used for gold ore primary grinding?
- Forged steel grinding balls such as B2 and B3 can be used for suitable gold ore primary grinding applications. The appropriate grade and diameter depend on ore characteristics, feed size, mill design and operating conditions.
- What size grinding balls are typically used for gold ore primary grinding?
- Larger grinding balls, commonly around 80-150 mm in suitable large-scale grinding circuits, may be considered for coarse primary grinding. The final ball size should be determined according to feed size, mill diameter, mill speed and target product size.
- Why are larger grinding balls used in primary grinding?
- Larger balls provide higher impact energy and can be effective for breaking relatively coarse ore particles during the initial grinding stage. Smaller balls generally provide more contact points and are more commonly associated with finer grinding stages.
- What is the difference between B2 and B3 grinding balls for gold ore?
- B2 offers a balanced combination of hardness, wear resistance and toughness for general grinding conditions. B3 provides a higher-alloy option for applications where higher impact and abrasion demands need to be considered.
- Should I choose B2 or B3 for gold ore primary grinding?
- B2 may be suitable for general primary grinding conditions, while B3 can be considered for more demanding impact and abrasion conditions. The final selection should be based on ore hardness, feed size, mill operating conditions and grinding media performance data.
- Can 10-150 mm grinding balls be used for gold ore?
- Yes. 100-150 mm forged steel grinding balls can be considered for suitable primary grinding circuits handling coarse gold ore feed, particularly in larger mills. Final selection should be confirmed according to mill design and operating conditions.
- Are these grinding balls suitable for SAG mills?
- B2 and B3 forged steel grinding balls can be supplied for suitable SAG and ball mill applications. However, SAG mill grinding media selection should be based on mill diameter, impact conditions, feed size and the required ball diameter.
- What affects grinding ball consumption in gold ore processing?
- Grinding media consumption is affected by ore abrasiveness, hardness, feed size, mill operating conditions, ball size, material grade, hardness and grinding efficiency.
- Is higher hardness always better for gold ore grinding balls?
- No. Excessive hardness without sufficient toughness may increase the risk of cracking under high-impact conditions. Grinding balls should provide an appropriate balance between hardness, wear resistance and toughness.
- Can JUNDA customize grinding ball size and material?
- Yes. JUNDA can supply different grinding ball diameters and material grades according to customer requirements, mill conditions and agreed technical specifications.
- Can JUNDA provide hardness and quality inspection data?
- Yes. Surface hardness, core/volume hardness, dimensional tolerance and other agreed quality parameters can be inspected according to the applicable product specification.
- What information should I provide when selecting gold ore grinding balls?
- Please provide the mill type, mill diameter, feed size, ore hardness or Bond Work Index if available, target product size, current ball size, current grinding media grade and grinding media consumption. JUNDA can use this information to recommend a suitable grinding ball specification.
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Product Groups
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