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Home > Manufacturing & Processing Machinery > Other Manufacturing & Processing Machinery > Alloy Steel Ball Mill Girth Gear, 40CrNiMo Material, 20m Diameter, ISO 6 Precision, Induction Hardened for Cement Plant
Alloy Steel Ball Mill Girth Gear, 40CrNiMo Material, 20m Diameter, ISO 6 Precision, Induction Hardened for Cement Plant
Product Spotlights
Alloy steel 40CrNiMo girth gear with 20m diameter, ISO 6 precision, and induction hardened teeth. Customizable segmented or one-piece design for cement ball mills. Backed by rigorous quality control and global certifications. Reduce downtime, improve efficiency, and extend gear life. Contact us for reliable, durable solutions.
US$ 1000
≥1 Combo
Key Specifications
Get Latest Price
Material:
40CrNiMo Alloy Steel
Diameter:
20m
Precision:
ISO 6
Payment & Shipping
Payment Methods:
Port of Shipment:
qingdao|tianjin
Delivery Detail:
30 days
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Material
40CrNiMo Alloy Steel
Diameter
20m
Precision
ISO 6
Heat Treatment
Induction Hardened
Application
Cement Plant
Type
Girth Gear
Configuration
Segmented/One-piece (customizable)
Hardness
Induction hardened surface (optional depth)
Henan San Kuang Machinery Technology Co., Ltd., a professional manufacturer founded in 2022 with a 10,000–30,000 m² factory and annual export value of US$2.5–5 million, presents our premium Alloy Steel Ball Mill Girth Gear. Crafted from 40CrNiMo material and precisely machined to ISO 6 precision, this 20-meter diameter girth gear is induction hardened for superior wear resistance, specifically designed for heavy-duty cement plant applications. Our gear combines high strength, durability, and reliable performance, backed by rigorous quality control systems including ISO9001 and other certifications.
Key Features & Technical Advantages
- Advanced Material: 40CrNiMo alloy steel offers excellent toughness, high fatigue strength, and resistance to shock loads, ensuring long service life under harsh cement mill conditions.
- Large Diameter Capability: 20-meter diameter design accommodates large ball mills, reducing the need for multiple gear stages and improving drive efficiency.
- ISO 6 Precision: Precision cutting and finishing achieve ISO 6 grade tolerances, resulting in smooth meshing, low noise, and minimal vibration during operation.
- Induction Hardening: Tooth surface is induction hardened to a specified depth (customizable), significantly increasing wear resistance while maintaining a tough core.
- Segmented or One-Piece Options: Available in segmented construction for easier transportation and installation, or as a one-piece ring for maximum rigidity – both customizable per customer requirements.
- Rigorous Quality Control: Each gear undergoes ultrasonic testing, magnetic particle inspection, and dimensional verification to ensure defect-free performance.
Technical Specifications (Typical)
| Parameter | Value |
| Material | 40CrNiMo (Alloy Steel) |
| Outer Diameter | 20 m (customizable) |
| Precision Grade | ISO 6 |
| Heat Treatment | Induction Hardening (tooth surface) |
| Hardness (tooth surface) | HRC 50–58 (customizable depth) |
| Application | Cement plant ball mills, also suitable for mining & power |
| Configuration | Segmented or one-piece (upon request) |
| Quality Certifications | ISO9001, ISO14000, OHSAS18001, and others |
Benefits for Your Cement Plant
- Reduced Downtime: Induction hardened teeth resist wear and pitting, extending gear life and minimizing maintenance intervals.
- Energy Efficiency: High precision (ISO 6) ensures uniform load distribution, lowering power consumption and operational costs.
- Easy Installation: Segmented design allows simple handling and assembly even in confined spaces, while one-piece option provides maximum integrity.
- Customizable: We can adjust dimensions, hardness depth, tooth profile, and segment count to match your mill’s exact specifications.
- Global Logistics: Shipped from Port of Shanghai, Lianyungang, Qingdao, or Tianjin, with experience exporting to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East.
Trust & Reliability
With 51–100 skilled employees and a factory spanning 10,000–30,000 m², Henan San Kuang Machinery Technology Co., Ltd. has built a reputation for consistent quality and on-time delivery. Our products are certified under multiple standards including HACCP, TL900, QS9000, SA8000, ISO9000 series, ISO14000, ISO10441, ISO16949, TS16969, OHSAS18001, and others. We have served customers in domestic and international markets, achieving annual export values of US$2.5–5 million. Our professional engineering team provides technical support from design to after-sales, ensuring your cement plant operates smoothly. Contact us today to discuss your ball mill girth gear requirements – we offer competitive pricing, fast lead times, and customized solutions.
Frequently Asked Questions (FAQ)
-
What is the typical delivery time for a 20m diameter girth gear?
Delivery time depends on configuration and order quantity. For a standard segmented gear, lead time is approximately 8–12 weeks after design confirmation. One-piece gears may require longer due to forging and machining cycles. Please contact us for a specific quote. -
Can the gear be made in one piece for 20m diameter?
Yes, one-piece construction is possible for 20m diameter, but it requires special transportation arrangements. Segmented design is often recommended for easier handling and installation. Both options are available upon request. -
What is the expected service life of this gear in a cement ball mill?
Service life depends on operating conditions, maintenance, and load. With proper lubrication and regular inspection, the induction hardened 40CrNiMo gear typically lasts 5–10 years or more in cement plants. Our gears are designed for durability. -
Do you offer custom tooth profiles or moduli?
Absolutely. We can customize tooth profile, module, pressure angle, and number of teeth to match your existing pinion and mill design. Provide your drawings or requirements, and our engineering team will propose a solution. -
How is the gear quality inspected before shipment?
We perform comprehensive inspection including dimensional measurement, ultrasonic testing (UT) for internal defects, magnetic particle inspection (MPI) for surface cracks, and hardness testing. A quality report is provided with each shipment. -
What is the maximum hardness depth achievable through induction hardening?
Typical induction hardened depth is 2–5 mm on the tooth flank, but we can adjust the process to achieve deeper or shallower cases as required. The core remains tough to absorb shock loads. -
Can you supply matching pinions for this girth gear?
Yes, we manufacture matching pinions and other transmission components. We can supply a complete drive package including pinion, shaft, bearings, and coupling if needed. -
What warranty do you offer?
We provide a standard 12-month warranty against manufacturing defects from the date of shipment. Extended warranty options are available upon negotiation. Our after-sales team is ready to assist with installation and troubleshooting.
Contact Henan San Kuang Machinery Technology Co., Ltd. today for a quotation or technical consultation. We are committed to delivering reliable, high-performance girth gears for your cement plant.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2022
Factory Size
10,000-30,000 square meters
Annual Export Value
US$2.5 Million - US$5 Million
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