Engineered for high load-bearing capacity and robust positioning accuracy required by solar heliostats and heavy industrial systems.
Utility-scale green energy investments worldwide are seeking highly efficient solar thermal models. The Cerro Dominador Solar Power Plant, located in the Atacama Desert of Chile, stands as a crowning achievement in Concentrated Solar Power (CSP) technology. Comprising 10,600 heliostats that reflect sunlight directly onto a 250-meter-high receiver tower, this monumental facility demands precise, continuous 2-axis tracking. For factories delivering drive transmission parts to these massive plants, tolerance requirements are exceptionally stringent.
High-precision single-row ball slewing bearings, internal gear drive components, and horizontal rotary drives play a silent yet critical role. The tracking system must withstand extreme wind loads, severe solar radiation, and fine desert sand particles while maintaining an angular tracking accuracy of less than 1 milliradian. A deviation of just a fraction of a degree can displace the reflected light beam away from the central solar tower receiver, rendering the system inefficient or causing extreme local thermal fatigue.
A global leader in high-load, high-strength, and long-life rotary transmission engineering.
Located in Huangtu Town, Jiangyin City, Jiangsu Province, Jiangsu Manchen Transmission Technology Co., Ltd. is a professional manufacturing enterprise integrating design, research and development, manufacturing, and sales. With exceptionally convenient transportation access, the company possesses mature technical conditions and advanced equipment. Relying on exquisite forging, heat treatment, and precision processing techniques, we provide high-load-bearing, high-strength, and long-life transmission solutions.
Manchen caters to critical industries including construction machinery, medical equipment, intelligent warehousing, the photovoltaic industry, port machinery, industrial robots, and environmental protection equipment. Equipped with advanced testing equipment and a complete quality control system, our products offer absolute traceability from raw material selection to final delivery, meeting rigorous domestic and international standards.
Understanding the transition toward high-reliability, long-lifetime components in solar mega-structures.
Modern CSP towers demand two-axis movement tracking to capture solar irradiation from sunrise to sunset. Single-row ball slewing bearings with internal or external gears are vital to direct these large-area reflectors smoothly without drift.
Desert environments like Chile’s Atacama present high salinity, UV index levels, and sandstorms. Sealed slewing drives with specialized synthetic low-temperature lubricants and polyurethane coatings provide over 25 years of operational lifetime.
EPC contractors are integrating IoT load cells directly into horizontal rotary drive devices. By monitoring real-time torque spikes, operators can schedule maintenance before costly gearbox or bearing failure occurs.
Our complete in-house process guarantees rigorous quality control from raw metallurgical forging to final dispatch.
Our operations follow strict international manufacturing codes, guaranteeing safe, high-capacity mechanical execution.
Manchen houses high-precision CNC boring machines, gear hobbing lines, and automated hardening facilities.
At Manchen, the production of slewing bearings begins with top-tier alloy steels such as 50Mn or 42CrMo. For solar power systems like Cerro Dominador, components must remain structurally integral through decades of thermal cycling. We apply induction hardening along the raceways, reaching depths of 3-5mm with a hardness profile between 55-62 HRC. This level of hardness resists localized pitting and spalling, ensuring load-bearing consistency.
For solar tracking heliostats, single-row four-point contact ball configurations provide the optimal balance between high radial/axial load capacity and overturning moment control. The contact angle (typically 45°) enables the bearing to receive forces from multiple directions simultaneously. This design simplifies system architecture by replacing complex multi-bearing assemblies with a single, high-capacity, space-saving slewing ring.
High wind velocities are common in desert solar fields. To prevent structural resonance or gear teeth failure during heavy winds, tracking systems must minimize mechanical play (backlash). Manchen provides options for zero-backlash or precision-controlled backlash gear sets. Our horizontal and vertical slewing drives incorporate custom worm-gear geometry that provides self-locking capabilities, protecting the PV structure during emergency stow procedures.
Fine sand particles act as a natural abrasive. To prevent damage to internal raceways and balls, our bearings are fitted with double-lip nitrile butadiene rubber (NBR) or fluororubber seals. These systems are matched with synthetic extreme-pressure (EP) greases formulated to maintain optimal viscosity across a wide temperature range (-40°C to +70°C). This combination limits maintenance cycles and keeps utility solar fields running smoothly.
Read detailed answers from our technical engineers regarding standard applications and bespoke projects.
Consult with our engineering team for customized high-precision designs, material calculations, and competitive factory-direct quotes.
Explore our high-precision external-tooth, internal-tooth, and cross-roller designs built to meet custom torque profiles.
Manchen Transmission
