Wire Rope Traction Machine
The Key of Modern Elevator Technology
In the world of Straight transportation, the wire rope traction machine is the heart of the system. The PROI Series represents the apex of permanent magnet synchronous motor (PMSM) technology, designed specifically for gearless elevator applications. By removing the traditional gearbox, these machines offer unique efficiency, reduced maintenance, and a significantly smoother ride for passengers.
Why Choose a Gearless Permanent Magnet Synchronous Motor?
Typical induction motors often consume energy in heat and friction .
The PROI Series utilizes permanent magnets to create a constant magnetic field, allowing for :
Energy Savings: Up to 40% more efficient than traditional geared traction machines.
Space Optimization: Compact “overall dimensions” allow for smaller machine rooms or even machine-room-less (MRL) configurations.
Environmental Impact: No oil lubrication is required, eliminating the risk of leaks and reducing environmental hazards.
Technical Specifications & Series Overview
The PROI Series is engineered to cover a wide range of load capacities, from residential lifts to high-capacity industrial elevators. Below is a summery of our primary models:
1. Compact Performance: PROI150A & PROI150-FG Series
Engineered for smaller installations, the PROI150A handles loads between 320kg and 450kg.
Speed Range: 0.3 to 1.0 m/s.
Static Load: 3000kg.
Key Feature: Features a 150mm or 160mm sheave, making it ideal for tight spaces while maintaining an IP41 protection rating.
2. Adaptable Mid-Range: PROI200 & PROI240 Series
For medium-traffic buildings, the PROI200-FG and PROI240 models offer a balance of power and accuracy.
Load Capacity: Up to 800kg on the PROI240 series.
Roping: 2:1 roping system for optimized torque.
Brake Voltage: DC110V with a brake current of 1.5A to 1.75A, ensuring quick and safe stopping distances.
3. Durable Solutions: PROI240L & PROI320T Series
When your project demands high lifting power and speed, the PROI240L and PROI320T are the industry standards.
Max Load: Up to 1350kg (PROI240L).
High Speed: Capabilities reaching up to 1.75 m/s.
Sheave Sizes: Up to 340mm to accommodate specialized wire rope requirements.
Planning Excellence: Design Features
Every wire rope traction machine in the PROI lineup is built with the following technical standards:
Insulation Class F
High-grade thermal insulation allows the motor to operate reliably under heavy workloads without overheating.
16-Pole Configuration
High-grade thermal insulation allows the motor to operate reliably under heavy workloads without overheating.
Working System S5-25% / S5-40%
These ratings ensure the motors are capable of handling frequent starts and stops typical of high-traffic elevator shafts.
Powerful Braking
High-grade thermal insulation allows the motor to operate reliably under heavy workloads without overheating.
Installation and Maintanance Guide
To ensure the longevity of your wire rope traction machine, proper installation is critical.
Alignment: Ensure the sheave is perfectly aligned with the car and counterweight to prevent premature wire rope wear.
Environment: While the IP41 rating protects against solid objects and vertical water drops, the machine room should remain dry and well-ventilated.
Static Load Monitoring: Never exceed the static load limit (e.g., 3000kg to 4000kg depending on the model) during installation or maintenance phases.
