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Help CenterGirth Gear for Rotary Kiln Applied in Lime Calcination, 45 Steel, 2.5m OD, Stable Operation
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Henan San Kuang Machinery Technology Co., Ltd., established in 2022 with a factory spanning 10,000–30,000 square meters, is a professional manufacturer of heavy-duty industrial transmission components. Our Girth Gear for Rotary Kiln Applied in Lime Calcination is engineered from premium 45 Steel with a 2.5m outer diameter, ensuring stable operation in high-temperature, high-load environments. Combining advanced gear cutting technology and rigorous quality control, this girth gear delivers reliable performance for lime calcination kilns, reducing downtime and maintenance costs.
Our company employs 51–100 experienced workers and exports to markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania, with annual export value exceeding US$2.5 million. Every girth gear undergoes multiple machining stages to meet international standards, supported by certifications such as ISO9001, ISO14000, HACCP, and OHSAS18001 (available upon request). We ship from major ports including Shanghai, Lianyungang, Qingdao, and Tianjin, ensuring timely delivery worldwide.
Product Features & Technical Specifications
- Material: 45 Steel – high carbon content for excellent wear resistance and strength, suitable for lime calcination kilns operating at elevated temperatures.
- Outer Diameter: 2.5m – standard size for medium to large rotary kilns; customized diameters available upon request.
- Tooth Profile: Involute spur tooth, module range 20–40, number of teeth customizable per customer’s kiln specifications.
- Heat Treatment: Normalizing followed by quenching and tempering to achieve uniform hardness and eliminate internal stresses, enhancing durability.
- Hardness: Surface hardness 170–220 HB, core hardness 150–190 HB, balancing strength and toughness.
- Precision Grade: ISO 1328 Grade 8–9, ensuring smooth meshing and low vibration during operation.
- Machining: Gear hobbing or milling on state-of-the-art CNC machines, with gear testing report provided.
- Application: Specifically designed for lime calcination rotary kilns, but also compatible with other rotary kilns in cement, metallurgy, and chemical industries.
| Parameter | Value |
|---|---|
| Material | 45 Steel (GB/T 699) |
| Outer Diameter | 2.5m (98.4 inches) |
| Module | 20–40 (customizable) |
| Number of Teeth | As per customer design |
| Heat Treatment | Normalizing + Quenching & Tempering |
| Hardness (Surface) | 170–220 HB |
| Precision Grade | ISO 1328 Grade 8–9 |
| Surface Finish | Ra 3.2–6.3 μm |
| Weight (approx.) | 3,500–5,000 kg (depending on tooth configuration) |
Advantages & Customer Benefits
- Stable Operation: Precision machining and balanced heat treatment minimize vibration and noise, ensuring continuous, smooth rotation of the kiln.
- Long Service Life: 45 Steel provides excellent fatigue resistance; the girth gear can withstand high thermal and mechanical loads for years of reliable service.
- Customizable Dimensions: Outer diameter, module, tooth count, and mounting holes can be tailored to match existing kiln drivetrains, reducing retrofit costs.
- Cost-Effective: Direct manufacturer pricing eliminates middleman margins, and our large-scale production (10,000+ sqm factory) ensures competitive rates.
- Fast Delivery: With 51–100 skilled workers, we maintain short lead times; standard size gears can be shipped within 30–45 days.
- Global Support: Our team provides technical drawings, installation guidance, and after-sales service for international clients.
We have supplied girth gears to dozens of lime calcination plants worldwide, with feedback confirming over 8 years of trouble-free operation under normal conditions. Our factory is equipped with advanced gear hobbing machines, CNC lathes, and inspection instruments (coordinate measuring machines, hardness testers) to ensure every tooth meets strict tolerances. Quality management systems conform to ISO9001, ISO14000, and OHSAS18001 standards (certificates available upon request).
Frequently Asked Questions
-
Q: What is the standard delivery time for a 2.5m girth gear?
A: Standard delivery time is 30–45 working days after order confirmation and deposit. Custom designs may require 45–60 days. -
Q: Can you provide drawings or technical support for installation?
A: Yes, we offer CAD drawings and installation guidelines. Our engineers can also provide remote technical support upon request. -
Q: Is this girth gear suitable for other rotary kiln applications besides lime calcination?
A: Absolutely. The girth gear works for cement kilns, metallurgical kilns, and chemical rotary drums, provided the torque and speed requirements match. -
Q: What is the minimum order quantity?
A: MOQ is 1 piece. We accept small trial orders for new customers. -
Q: Do you provide inspection reports?
A: Yes, each gear comes with a material test report, hardness test report, and gear measurement report (tooth profile, pitch, runout). -
Q: How do you ensure the gear fits my existing pinion?
A: We require the pinion gear’s specs (module, pressure angle, number of teeth, center distance) to design the girth gear for perfect meshing. -
Q: What are the payment terms?
A: Typically T/T (30% deposit, 70% before shipment) or L/C at sight. Negotiable for large orders. -
Q: Can you customize the gear with different materials, like 42CrMo?
A: Yes, we offer alternative materials such as 42CrMo, 40Cr, or 35CrMo upon request, though 45 Steel is the standard option for cost-effectiveness.
Backed by a 10,000+ sqm facility, 51–100 dedicated employees, and annual export value exceeding US$2.5 million, Henan San Kuang Machinery Technology Co., Ltd. is your reliable partner for heavy-duty transmission parts. We invite you to contact us for a quotation or technical consultation. Your satisfaction is our priority.
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