VVVF Control Smooth Transit Lifts

Premium Grade European Standard Lifetime Support

Experience unparalleled quality and innovation in elevator technology, designed for discerning clients who demand excellence in every detail.

Variable Voltage Variable Frequency Regulation

VVVF (Variable Voltage Variable Frequency) control is the primary technology used to manage the acceleration and deceleration curves of modern traction elevators. By adjusting both the voltage and the frequency of the power supplied to the motor, the controller can manipulate the torque and speed with extreme precision. The technical core of this system is the "S-curve" profile, which ensures that changes in velocity are gradual rather than abrupt. During the start phase, the VVVF drive provides high torque to overcome static friction without jerking. During the approach to a floor, it gradually reduces frequency to bring the cabin to a stop within a ±2mm leveling accuracy. This control logic also minimizes the mechanical stress on the wire ropes and sheaves, as the motor no longer experiences high-current "inrush" starts typical of older single-speed or two-speed systems.

99.7%
Uptime Reliability
25+
Years Experience
5000+
Projects Completed
24/7
Global Support
01

Comprehensive System Overview

Engineered for Excellence, Built for Performance

Intelligent Manufacturing Focus

As a science and technology research and development center, Suzhou Dongao Home Elevator Co., Ltd. prioritizes the integration of smart control logic in our lift systems. Within our 17,000sqm production site, we utilize a comprehensive introduction of advanced lift production technology to ensure our controllers are perfectly calibrated. Our VVVF systems are designed to provide the "luxury custom" feel that our 5,000+ high-end clients expect. We focus on the "wisdom" of the lift, ensuring that every movement is exquisite and silent. By utilizing modern management modes and productivity innovation, we deliver a transit experience where the passenger barely perceives the vertical movement, reinforcing our position as an industry pioneer in the high-end residential and commercial sectors.

Why Choose Our System?

  • Advanced German Engineering Standards
  • 30% More Energy Efficient
  • Silent Operation Technology
  • Earthquake Resistant Design
02

Core Solutions for Every Need

Tailored Solutions for Premium Residences

Precision Motion Scenarios

  • High-end private residences where a "seamless" feel is essential for home comfort.
  • Medical facilities or nursing homes where smooth starts and stops are critical for patient transport and safety.
  • Commercial office buildings where high-speed transit must be balanced with passenger comfort.
  • Delicate cargo transport where sudden movements could damage sensitive laboratory or electronic equipment.
  • Buildings with high floor counts where consistent speed regulation is necessary for maintaining wait-time efficiency.
03

Technical Precision & Specifications

Where Innovation Meets Reliability

Our technical specifications represent the pinnacle of elevator engineering, combining safety, efficiency, and luxury in every parameter.

Control Logic32-Bit Microprocessor VVVF Vector Control
Speed Accuracy≤ 0.5% Deviation
Leveling Accuracy±2mm (High-Precision Photoelectric)
Inverter BrandIndustrial Grade High-Stability Inverter
Starting CurrentReduced by 50% compared to DOL
Harmonic DistortionLow (IEEE 519 Compliant)
04

Premium Materials & Craftsmanship

Where Quality Meets Artistry

Electronic Component Standards

We specify high-end Japanese or European IGBT (Insulated Gate Bipolar Transistor) modules for our inverters to ensure high-speed switching and thermal durability. The control boards are treated with a conformal coating to protect against moisture and dust, common in both luxury villas and industrial sites. Communication between components utilizes the CAN-bus protocol, providing high EMI resistance and fast data transmission for real-time motion control.

Aerospace Grade Steel

Superior strength and durability

Italian Finishes

Luxurious aesthetic appeal

Energy Efficient

Eco-friendly operation

05

Bespoke Customization Service

Your Vision, Our Craftsmanship

Electronic Tuning Process

1. Site Power Assessment: Verifying the input voltage and phase stability. 2. Motor Parameter Matching: Inputting the motor's nameplate data into the VVVF drive. 3. S-Curve Customization: Adjusting the acceleration and deceleration rates based on client preference. 4. Auto-Tuning: Running a sequence where the lift "learns" the shaft's friction and inertia. 5. Ride Quality Audit: Using an accelerometer to verify that vibration and jerk levels are within international ISO standards.

Our 5-Step Customization Process:

1
Consultation

Understanding your requirements

2
Design

Creating unique concepts

3
Engineering

Technical implementation

4
Production

Precision manufacturing

5
Installation

Professional setup

Ready to Elevate Your Property?

Join 5000+ satisfied customers who chose premium quality

check 5-Year Warranty Included check Free Site Assessment check 24/7 Technical Support

About Us
Suzhou Dongao Home Elevator Co., Ltd.
Suzhou Dongao Home Elevator Co., Ltd.
Suzhou Dongao Home Elevator Co., Ltd. is China Customized VVVF Control Smooth Transit Lifts Company, focusing on high-end villa lifts, which has become the honourable choice for nearly 5000 high-end villas and private residence owners. The company is located in Qidu, the innovation Silicon Valley of China's lift industry, with a plant area of 17,000 square metres and more than 100 team members. The company has self-developed patented technology, the comprehensive introduction of Germany's advanced lift production technology and production equipment, the use of efficient modern management mode, empowering the industry innovation breakthroughs and productivity innovation, is committed to providing customers with high-end villa lift intelligent solutions. After several years of precipitation and accumulation, Dong'ao Household covers nearly 30 provinces in China and has nearly 200 agents in the country, some of which have opened demonstration showrooms in Shanghai, Fujian, Jinan, Suzhou, Changzhou, Taicang and other regions. The company has a science and technology research and development exhibition centre, covering an area of 800m2, which supports the ambition of the local lift industry pioneer with craftsmanship. Fashionable touch, luxury custom, and details determine the quality, quality from professional, innovation cast the future, Dong'ao home lift, positioning high-end quality, with the heart of wisdom, square inches, exquisite luxury, enjoy the time! We offer VVVF Control Smooth Transit Lifts for sale.
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