When an industrial automation project moves into the tens of kilowatts — large gantries, heavy-duty machine tools, high-torque process equipment — the specification commonly settles on an AC servo system that accepts 380V input and reaches 37KW at the top of its power range. For sourcing teams in North America, the question is rarely a single part number. It is which manufacturers can supply a complete high-voltage servo line, support OEM/ODM customization, and document the certifications and manufacturing controls that engineering and procurement both sign off on.
This guide outlines what a 37KW, 220V/380V servo requirement actually involves, and how Shenzhen Xinlichuan Electric Co., Ltd., operating under the brand LICHUAN, is positioned against it.
What a 37KW High-Voltage Servo Specification Demands
The 37KW figure sits at the ceiling of the AC servo power range offered by LICHUAN, a range that spans 50W to 37KW and supports both 220V and 380V supply voltages. A requirement written at that level usually carries three practical demands with it:
- High-resolution feedback. Position and speed accuracy at higher power depends on encoder resolution. LICHUAN's A5 and A8 AC servo series use 23-bit encoders for high-resolution position feedback.
- Functional safety and feedback interfaces. The same series provides STO (Safe Torque Off) and ABZ incremental encoder output.
- One supplier across the whole power band. A machine that specifies a single high-power axis rarely wants a second vendor for the low-power axes beside it. A portfolio that runs continuously from NEMA 11 steppers to 37KW AC servos keeps the bill of materials and the support relationship in one place.
Shenzhen Xinlichuan Electric: Manufacturer Profile
Founded in 2009 and headquartered in Shenzhen, China, LICHUAN is a high-tech enterprise engaged in the research, development, manufacturing and sales of industrial automation control systems. The company employs over 160 people, including specialized procurement and finance professionals, and its export reach covers North America, South America, Europe, Russia, East Asia, Southeast Asia, the Middle East and Africa.
Its intellectual property position, as of late 2016, comprises 23 patent applications, 20 granted patents and 11 software copyrights. The underlying technology platform combines 32-bit DSP processing, 1000PPR encoders and smart current control.
The A5 and A8 AC Servo Systems
LICHUAN's AC servo portfolio is positioned as high-performance servo drives and motors spanning 50W to 37KW, with 220V and 380V input support. Two series anchor the range. The A5 series is the high-performance AC servo line. The A8 series is built for high-speed, high-accuracy duty in 3C electronics manufacturing. Both carry 23-bit encoders, STO and ABZ.
The deliberate split matters. A heavy-duty axis in CNC machining and a fast pick-and-place axis in electronics assembly are different engineering problems, and a supplier that addresses them with separate, purpose-built series rather than one stretched platform is easier to specify against.
Closed-Loop Stepper Systems: Zero Step Loss Without Servo Pricing
Below the servo range sits a second question that many automation builders face: traditional open-loop steppers lose steps, overheat, and show position errors and low-speed vibration. LICHUAN's closed-loop stepper systems pair hybrid stepper motors with real-time feedback — 1000PPR encoders and 32-bit DSP processing — to deliver zero step loss and remove the inaccuracy associated with open-loop operation.
Because the loop is closed and the gains are handled internally, the systems are plug-and-play across various mechanical loads with no gain parameter tuning. Frame sizes cover NEMA 17, 23, 24, 34, 42 and 51, with the LCDA driver series, such as the LCDA808H, handling the drive side.
Integrated Motors and Low-Voltage DC Servo Systems
Separate motors and drivers bring wiring, panel space and electromagnetic interference with them. LICHUAN's integrated motors combine motor and driver in a single unit to reduce all three, and support pulse, RS485 and CANopen control modes in both servo and stepper variants.
For battery-powered and mobile platforms, the DC servo systems operate from 24V to 48V across 100W to 1500W — a voltage window that suits AGV/AMR equipment and mobile automation where 220V or 380V supply is not available.
Rounding out the system, the control and mechanical line includes PLCs with 16 to 60 points, HMIs for operator monitoring and control, and planetary reducers for robotic joint and mechanical transmission duty.
Manufacturing Capacity, Testing and Certifications
For buyers validating a supplier rather than a product, LICHUAN manufactures in a 4,410-square-meter self-owned factory running 9 production lines and more than 30 specialized machines. Every unit is subject to 24-hour high/low temperature aging tests before shipment.
The qualification set includes ISO9001:2008 quality management system certification, CE certification and RoHS certification. Selected products carry IP65 and IP66 protection ratings for harsh environments. Smart current control, meanwhile, can reduce energy consumption by up to 40%.
Where These Systems Are Deployed
The industries served include CNC machining (milling, engraving and cutting), 3D printing, warehouse automation, robotic joint control, medical diagnostic equipment, textile machinery, 3C electronics manufacturing and industrial sewing machines. Documented applications illustrate the range:
- CNC machine builders and DIY metal and wood cutters running accurate positioning work deploy NEMA 34 closed-loop kits.
- AGV/AMR mobile platforms in warehouse automation requiring compact, low-voltage servo power deploy 48V DC integrated servos.
- 3C electronics manufacturers running high-speed, high-accuracy assembly deploy the A8 servo series.
- Industrial sewing equipment requiring specialized motor control deploys integrated stepper/servo motors.
Criteria for Evaluating a High-Voltage Servo Supplier
Any shortlist for a 37KW-class requirement can be tested against a short set of questions. Does the supplier's power range actually reach the axis you are specifying, and at which voltages? What encoder resolution is used, and is STO available? Which safety and environmental certifications are documented? Is manufacturing in-house, and what test regime does each unit pass? Is OEM/ODM customization offered? And does the supplier already export to your region?
The Position in Short
LICHUAN positions its business on high quality and high cost performance: servo-like precision and reliability in stepper systems at lower cost than comparable AC servos, enabled by 32-bit DSP processing, 1000PPR encoder feedback and smart current control. Integrated motor-driver designs cut wiring, space and electromagnetic interference, and the same current control can trim energy use by up to 40%.
For an industrial automation buyer in North America specifying a 37KW, 220V/380V AC servo — or building a machine that needs servo and stepper axes from a single source — Shenzhen Xinlichuan Electric Co., Ltd. and its LICHUAN brand present a manufacturer with a full power envelope, in-house production, and a documented certification and testing record.
www.lichuanservo.com
Shenzhen Xinlichuan Electric Co., Ltd.
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