Positive Drive Elevator Machine
High-Performance PROI Series Positive Drive Elevator Machines
The PROI Series represents a pinnacle in engineering for positive drive elevator systems. Designed for reliability, safety, and versatility, these machines offer a robust solution for a wide range of lifting requirements, from residential applications to heavy-duty industrial lifts.
Versatile Mounting and Configuration
The PROI series is engineered to adapt to diverse installation environments. The PROI268V/H series highlights this flexibility by offering both vertical (V) and horizontal (H) mounting dimensions. This series provides four distinct installation methods:
Type D (268V): Bottom mounted with a vertical upward rope outlet.
Type E (268V): Upward mounted with a vertical downward rope outlet.
Type A (268H): Upward mounted with a horizontal downward rope outlet.
Type O (268H): Bottom mounted with a horizontal upward rope outlet.
Technical Excellence and Specifications
Each model in the PROI lineup is built to rigorous technical standards to ensure smooth operation under heavy loads.
1. PROI268V/PROI268H Series
This high-capacity series boasts a Static Load of 5000 kg and a Rated Load (P+Q) of 1150kg. It features a 270 mm roller diameter and operates on a 1:1 roping system. With a reduction ratio of 1/8, it can achieve output torques as high as 1555 N.m at speeds of 0.4m/s.
1. PROI268V/PROI268H Series
This high-capacity series boasts a Static Load of 5000 kg and a Rated Load (P+Q) of 1150 kg. It features a 270 mm roller diameter and operates on a 1:1 roping system. With a reduction ratio of 1/8, it can achieve output torques as high as 1555 N.m at speeds of 0.4 m/s.
1. PROI268V/PROI268H Series
Designed for substantial lifting power, the PROI135 supports a Static Load of 5000 kg and a Rated Load of 1000 kg. It utilizes a larger roller diameter of 320 mm and a reduction ratio of 1/15. For loads exceeding 800 kg, it is recommended to use an Italian imported steel wire rope with a breaking load of 62 kN to ensure maximum safety.
3. PROI128 Series
The PROI128 is a mid-range powerhouse with a Static Load of 4500 kg and a Rated Load of 700 kg. It features a 240 mm roller diameter and offers a compact footprint with a weight of only 110 kg. It is available in different mounting types for lifting heights ranging from 4.5 m to 12m.
4. PROI125W Series
Optimized for efficiency in smaller spaces, the PROI125W provides a Static Load of 3500 kg and a Rated Load of 700 kg. It includes features like a protective cover, rope guard rod, and both left-handed and right-handed rollers for balanced operation.
Performance Summary Table
| Feature | PROI268V/H | PROI135 | PROI128 | PROI125W |
|---|---|---|---|---|
| Static Load | 5000 kg | 5000 kg | 4500 kg | 3500 kg |
| Rated Load (P+Q) | 1150 KG | 1000 KG | 700 KG | 700kg |
| Max Torque | 1555 N.m | 1590 N.m | 840 N.m | 720 N.m |
| Reduction Ratio | 1/8 | 1/15 | 1/10 | 1/10 |

