Durable Girth Gears and Pinions for Heavy-Duty Use
MAAG® Open gears, including girth gears and pinions, are engineered for demanding applications in the cement and mining industries. Manufactured using state-of-the-art processes and high-quality materials, these components ensure long-lasting, high-performance for mills and kilns.
Key Benefits:
- Long-lasting, heavy-duty girth gears
- Expert customisations
- No risk of inclusions and other irregularities
- Long service life
- Diversity to fulfil demands
- Made to order to match specific needs
Get the Best from Your Mill or Kiln with MAAG® Girth Gears
Heavy-duty comminution requires robust equipment. MAAG® Girth gears are designed to meet these challenges. Manufactured using advanced processes and premium source materials, they ensure high performance for mills and kilns.
Introduction to MAAG Gear Technology
With over 50 years of experience in forged gear ring technology, collaborations with leading mill suppliers, and active participation in defining industry standards (e.g., AGMA), MAAG Gear is a leader in gear manufacturing. Over 1,000 MAAG Girth gears are in operation globally, providing optimal reliability for the cement and mineral industries. Applications also extend to chemical processing, ceramics, food processing, and pulp and paper sectors.
Advanced Manufacturing Technology
MAAG® fabricated girth gears utilize forged gear rims and electro-welded structures. This sophisticated and reliable process ensures a uniform, homogenous crystal structure in the forged rims, guaranteeing consistent material properties throughout the toothing. This manufacturing method excludes casting defects such as hot tears, porosity, or shrinkage, resulting in stronger and more dependable girth gears. For ductile cast iron or cast-iron girth gears, MAAG sources raw materials from world-leading foundries, ensuring the highest quality.
Tailor-Made Pinions for Your Open Gear Systems
MAAG® Pinions are manufactured with maximum precision and customized for mill and kiln drive applications, designed to work harmoniously with girth gears for smooth, reliable operations. MAAG has continuously improved pinion technology, recognizing that the correct combination of material, hardness, and finishing between pinion and gears is crucial for long service life.
Engineered for Success
MAAG engineers meticulously consider tooth flank modifications for various pinion gearing requirements in new installations, ensuring MAAG Pinions are fit-for-purpose and deliver maximum output with minimal noise. Precise manufacturing techniques allow for the implementation of profile and longitudinal modifications as needed. For performance upgrades or speed changes, MAAG takes responsibility for the new gearing design. With developed, improved, and patented heat treatment processes, MAAG is a leader in heat treatment technology, ensuring optimal material quality and characteristics for dependable pinions.
MAAG Pinion designs are varied and include:
- Self-aligning
- Spur, helical, or double helical toothing
- Bored or integral
- Forged alloyed steel
- Through-hardened, quenched, and tempered
- Carburised and ground
- Induction-hardened, and nitride
Expert Heat Treatment
MAAG's patented heat treatment processes, developed and refined over years, are central to producing top-notch pinions. Modern heat treatment facilities ensure the best material quality and characteristics, leading to dependable performance.
Precision Engineering and Quality Assurance
MAAG® girth gears and pinions are produced by highly-skilled engineers and operators trained in sophisticated engineering software. They can manufacture all geared components or individual parts from various materials to meet precise specifications.
Based on extensive engineering analysis and decades of experience, MAAG can propose design improvements to enhance part reliability and ensure smooth operations for mills and kilns long into the future.
Customers rely on MAAG products, which undergo strict tests including NDT-QA inspection, non-destructive testing (NDT), ultrasonic testing, magnetic particle testing, and penetrant testing. MAAG complies with international standards such as UNI EN ISO, AWS, ASTM, ASME, and DIN.
Manufacturing Capabilities
Continuous investment in modern machine shops ensures state-of-the-art girth gear production across a wide range of sizes:
External Gears
- Maximum diameter: 10,000 mm
- Face width: 850 mm
- Maximum module: 50 by hobbling
Internal Gears
- Maximum diameter: 6,500 mm
- Face width: 400 mm
- Maximum module: 25.4
Home of Precision Engineering
For over 100 years, the MAAG® Gear brand has upheld its founding vision and values. Evolving demands in heavy-duty industries drive the need for more efficient, reliable, and sustainable gear technologies. MAAG is dedicated to providing high-precision solutions that enhance productivity, sustainability, and reliability for clients in cement, mining, and beyond. With a rich history of innovation and a robust product portfolio, MAAG stands as a trusted partner, committed to driving progress through precision.
Discover how MAAG can help elevate your business.
MAAG Gear Global Locations
MAAG Gear operates worldwide with dedicated facilities:
- MAAG Gear AG
Thurgauerstrasse 32
8050 Zürich, Switzerland - MAAG Gear Sp. z o.o.
ul. Stoczniowa 2
82-300 Elbląg, Poland - MAAG Gear S.p.A.
Via Rubattino 94/A
20134 Milano, Italy - MAAG Gear US Limited
2362 Serviceberry Drive
PO Box 97
Garden City, UT 84028
United States of America - MAAG Gear India Private Limited
A204 Supreme Business Park, Hiranandani Garden, Powai
Mumbai – 400076, Maharashtra, India
