SY215E is a new 21T class electric excavator product built by Sany, specially designed for earthwork conditions, suitable for tunnel construction, scrap steel plant, municipal engineering and other scenarios, configured with special features for tunnel construction with the goal of energy saving and environmental protection to improve customer return on investment.
Reliable with Core Configuration
High Power Motor: Equipped with a custom designed permanent magnet synchronous motor, which has high power density, high torque density, high efficiency, safety, reliability, and low energy consumption.
High Performance Battery: Using 422 kWh high-performance lithium-ion battery, which has high power density, high protection level, long endurance, short charging time, intelligent fault diagnosis, and other benefits. It uses internationally known lithium-ion standard battery packs, with a design life of over ten years, providing comprehensive endurance of 6-10 hours on a single charge.
Integrated Controller: Equipped with a custom-designed multi-in-one integrated controller, which adopts a highly integrated circuit design, integrating the electric drive MCU function, three-phase AC charging OBC function, lowvoltage power supply DC/DC function, vehicle control VCU function, and at the same time, it has an on-power pre-charge auxiliary function, small volume, and high integration.
Electro-hydraulic System with Comprehensive Enhancements
Full electronic control of the main valve spool: The main valve spool is now fully electronically controlled, allowing more flexible control and user-friendly human-machine interaction.
High performance controller: Equipped with a high performance controller and optimized control algorithms.
Enhanced system safety: Safety features have been added, such as abnormal alarm/emergency stop/startup diagnosis/redundant control in case of system abnormalities, ensuring human safety.
Electro-proportional control technology: With rapid response to electronic control parameters, flow redistribution can be achieved through upgraded programs.
Advanced Energy-saving Technology for More Convenient Charging
Precise flow control: The excavator arm's electronic control system allows individual control of each pump's power during complex operations, ensuring accurate flow rates to meet the demands of each movement.
Return oil saving control: During the retraction of the excavator arm, oil from the rod side of the hydraulic cylinder is redirected through an independent valve core to the oil tank, reducing back pressure.
Bypass cut-off control: The bypass cut-off spool closes the central oil circuit of the multi-way valve in advance, so that the pump flow is completely into the cylinder work.
Intelligent charging monitoring: Equipped with two national standard charging ports and support for fast DC charging, charging status can be intelligently monitored. Optional high power split and integrated DC fast charging pile, which can be fully charged in 1.5 hours for a single charge.
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