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The SITI helical gearbox series delivers high-efficiency power transmission with torque capacities ranging from 30 Nm to 10,000 Nm. Featuring precision-ground helical gears with 20CrMnTi alloy steel construction, these units achieve up to 97% mechanical efficiency while operating at noise levels below 63 dBA. The rugged cast iron housing GG25 grade provides exceptional thermal stability and vibration damping, with optional aluminum alloy versions for weight-critical applications. Available in foot-mounted, flange-mounted, and shaft-mounted configurations, these gearboxes support IEC standard motor interfaces and offer ultra-precise models with backlash as low as 2 arc-minutes. The triple-lip sealing system ensures IP67 protection against dust and water ingress, while the advanced lubrication system extends maintenance intervals to 30,000 operating hours.
SITIs innovative gear design incorporates carburized and tempered gear teeth 60-62 HRC with profile grinding for maximum durability under continuous heavy loads. The optimized bearing arrangement exceeds AGMA load capacity standards by 15-20%, ensuring reliable performance in demanding conditions. These gearboxes operate efficiently across an extended temperature range -25°C to +110°C and feature corrosion-resistant surface treatment on all external components. Certified to ISO 9001:2015 standards with CE, UL, and ATEX approvals, they are particularly suited for steel mills, mining equipment, and precision automation systems. The compact, modular design allows for easy integration of optional accessories including anti-backlash mechanisms, encoder adapters, and multiple shaft output configurations, providing versatile solutions for complex industrial applications.
WEBSITE: SITI Helical Gearbox Iran
These helical gearboxes achieve power transmission with mechanical efficiency up to 97% across a wide torque capacity range of 30 to 10,000 Nm. Their technical core consists of precision-ground helical gears made of 20CrMnTi alloy steel, which undergo carburizing and tempering 60-62 HRC and profile grinding to ensure maximum strength and durability under heavy continuous loads. The main housing is constructed from GG25 grade cast iron offering excellent thermal stability and vibration damping, with aluminum versions available for weight reduction. The optimized bearing arrangement provides load capacity up to 20% higher than AGMA standards, enabling reliable performance in demanding conditions.
The gearboxes are designed in foot-mounted, flange-mounted, and shaft-mounted configurations, support IEC standard motors, and can be supplied as ultra-precision models with backlash as low as 2 arc-minutes. A triple-lip sealing system ensures IP67 protection against dust and water ingress, while the advanced lubrication system extends service intervals to 30,000 hours. Reliable operation is guaranteed across a temperature range of -25°C to +110°C, complemented by corrosion-resistant coating on all external components. The compact, modular design facilitates easy integration of accessories such as anti-backlash mechanisms and encoder adapters.
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