How to Choose a Reliable PMSM Traction Machine?
With the advancement of energy-saving and intelligent elevator technologies, permanent magnet synchronous traction machines (PMSM) have become the mainstream choice for modern elevator systems. Compared with traditional geared traction machines, PMSM traction machines offer higher efficiency, lower energy consumption, lower noise, and maintenance-free operation—but only if you choose the right model and the right supplier.
So how can you order a truly reliable permanent magnet synchronous traction machine? Based on years of industry experience, A-FLY Elevator & Escalator Parts Supplier shares key points worth considering.

1. Clarify Elevator Parameters First to Avoid Model Mismatch
Before ordering a PMSM traction machine, it is essential to confirm the basic elevator technical parameters, including:
Rated load (kg)
Rated speed (m/s)
Suspension ratio (1:1 / 2:1)
Steel wire rope or steel belt specifications
Traction sheave diameter and groove type
Power supply voltage and control system brand
These parameters directly determine the traction machine’s power, torque, and speed range. If the parameters do not match, the elevator may run unstably, or worse, suffer from rope slippage, overload, or safety risks.
Before supplying any PMSM traction machine, A-FLY assists customers with full parameter verification, ensuring perfect compatibility with the complete elevator system.
2. Focus on Core Configuration, Not Just Price
Permanent magnet synchronous traction machines on the market vary significantly in price, and the real differences often lie in components you cannot easily see, such as:
Stability and demagnetization resistance of the permanent magnets
Quality of stator winding workmanship
Bearing brand and service life rating
Encoder accuracy and compatibility
Heat dissipation structure and design
Low-quality traction machines commonly suffer from high noise, excessive heat, low-speed vibration, and frequent encoder failures.
A-FLY PMSM traction machines use mature magnet solutions and high-precision encoders, ensuring long-term stable operation—especially suitable for modernization projects and high-usage environments.
3. Ensure Compatibility with the Inverter and Control System
A permanent magnet synchronous traction machine is not a simple “plug-and-play” product. It must be fully compatible with the elevator inverter and main control system, such as:
Monarch NICE3000
STEP (XINSHIDA)
BL2000 and other mainstream systems
When ordering, confirm:
Whether the traction machine supports the required encoder protocol
Whether there are successful matching application cases
Whether parameter tuning and technical support are available
As a professional elevator parts supplier, A-FLY provides complete matching recommendations, including traction machines, inverters, control boards, and related elevator components—greatly reducing on-site commissioning risks.
4. Different Applications Require Different Selection Priorities
Not all projects have the same requirements for PMSM traction machines:
Residential elevators: focus on quiet operation and ride comfort
Commercial elevators: prioritize stability and durability
Modernization projects: emphasize size compatibility and ease of installation
High-speed elevators: require strong dynamic response and efficient heat dissipation
In real procurement, avoid selecting solely based on power rating. Instead, evaluate the usage frequency and operating environment comprehensively.
5. Choosing a Reliable Elevator Parts Supplier Is Equally Important
The reliability of a permanent magnet synchronous traction machine depends not only on the product itself, but also on whether the supplier offers:
Strong elevator industry experience
Stable supply capability
Professional technical support and after-sales service
One-stop elevator parts supply solutions
As a professional elevator and escalator parts supplier, A-FLY not only provides PMSM traction machines, but also supplies:
Elevator traction sheaves and steel wire ropes
Elevator inverters and control boards
Encoders, brakes, and safety components
Door operator systems and elevator buttons
Helping customers upgrade from single-product purchasing to complete system solutions.
Conclusion: Reliability Starts with the Right Selection
The permanent magnet synchronous traction machine is the power heart of an elevator. Incorrect selection can significantly increase maintenance costs and safety risks in the future. Only with accurate parameter matching, reliable quality, and full system compatibility can its energy-saving and stability advantages be fully realized.
Choose A-FLY to make every elevator power system more stable, energy-efficient, and worry-free.
A-FLY — Your Trusted Elevator & Escalator Parts Partner.