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Gearless Permanent Magnet Direct Drive Pulley 22-55kW
Jasung outer rotor permanent magnet motor technology: Jasung permanent magnet direct drive pulley shaft is fixed, which is equivalent to the stator part of the motor. The stator iron core is superimposed and fixed on the shaft by silicon steel sheet, in which the stator winding is embedded.
Classification:
PMDD pulley description
Jasung outer rotor permanent magnet motor technology: Jasung permanent magnet direct drive pulley shaft is fixed, which is equivalent to the stator part of the motor. The stator iron core is superimposed and fixed on the shaft by silicon steel sheet, in which the stator winding is embedded. When the stator winding passes through three-phase symmetrical alternating current, it can produce a rotating magnetic field. The pulley surface is equivalent to the rotor part of the motor. The rotor is superimposed and fixed on the inner surface of the pulley by the silicon sheet, and UH grade permanent magnets are embedded in it. A permanent static magnetic field will be generated, and when symmetrical three-phase alternating current is turned on, the motor will work, that is, the pulley will work.
| Product | Product Category | Voltage | Power Range | Product Application |
| PMDD Pulley | Explosion-proof | 380/415V/460V | 11KW-315KW,355KW-710KW | For belt conveyors |
| 660V | 11KW-710KW | |||
| 1140V | 11KW-1000KW | |||
| 3300V | 200KW-1600KW | |||
| 6000V | 200KW-1600KW | |||
| 10000V | 200KW-2000KW | |||
| Non-explosion proof | 380/415V/460V | 11KW-315KW,355KW-710KW | For belt conveyors | |
| 660V | 11KW-710KW | |||
| 1140V | 11KW-1000KW | |||
| 3300V | 200KW-1600KW | |||
| 6000V | 200KW-1600KW | |||
| 10000V | 200KW-1600KW |
Technical Specifications
PERMANENT MAGNET
DIRECT DRIVE PULLEY
Rated voltage:380V Other voltages customizable, up to 10KV
| Belt width (mm) |
Pulley diameter (mm) |
Pulley length (mm) |
Belt speed (m/s) |
Rated power (kW) |
Rated speed (rpm) |
Rated torque (KNm) |
Rated frequency (Hz) |
Rated current (A) |
Power factor | Rated efficiency (%) |
| 650 | 750 | 1.25 | 22 | 47.8 | 4.4 | 11.9 | 41 | 0.97 | 83.7 | |
| 1.60 | 25 | 61.1 | 3.9 | 15.3 | 46 | 85.7 | ||||
| 2.00 | 30 | 76.4 | 3.7 | 19.1 | 54 | 87.8 | ||||
| 2.50 | 40 | 95.5 | 4.0 | 23.9 | 70 | 89.8 | ||||
| 3.15 | 45 | 120.4 | 3.6 | 30.1 | 77 | 91.0 | ||||
| 3.50 | 55 | 133.8 | 3.9 | 33.4 | 93 | 92.2 | ||||
| 4.00 | 68 | 152.9 | 4.2 | 38.2 | 114 | 93.4 | ||||
| 1.25 | 11 | 47.8 | 2.2 | 11.9 | 20 | 84.2 | ||||
| 1.60 | 15 | 61.1 | 2.3 | 15.3 | 27 | 86.1 | ||||
| 2.00 | 18.5 | 76.4 | 2.3 | 19.1 | 33 | 88.1 | ||||
| 2.50 | 25 | 95.5 | 2.5 | 23.9 | 44 | 90.0 | ||||
| 3.15 | 30 | 120.4 | 2.4 | 30.1 | 52 | 91.2 | ||||
| 3.50 | 30 | 133.8 | 2.1 | 33.4 | 51 | 92.3 | ||||
| 4.00 | 40 | 152.9 | 2.5 | 38.2 | 67 | 93.5 | ||||
| 800 | 950 | 1.25 | 30 | 47.8 | 6.0 | 11.9 | 56 | 0.97 | 83.8 | |
| 1.60 | 37 | 61.1 | 5.8 | 15.3 | 68 | 85.8 | ||||
| 2.00 | 45 | 76.4 | 5.6 | 19.1 | 80 | 87.9 | ||||
| 2.50 | 55 | 95.5 | 5.5 | 23.9 | 96 | 89.9 | ||||
| 3.15 | 75 | 120.4 | 5.9 | 30.1 | 129 | 91.1 | ||||
| 3.50 | 82 | 133.8 | 5.9 | 33.4 | 139 | 92.3 | ||||
| 4.00 | 90 | 152.9 | 5.6 | 38.2 | 151 | 93.5 | ||||
| 1.25 | 18.5 | 47.8 | 3.7 | 11.9 | 34 | 84.3 | ||||
| 1.60 | 25 | 61.1 | 3.9 | 15.3 | 45 | 86.2 | ||||
| 2.00 | 30 | 76.4 | 3.7 | 19.1 | 53 | 88.2 | ||||
| 2.50 | 37 | 95.5 | 3.7 | 23.9 | 64 | 90.1 | ||||
| 3.15 | 45 | 120.4 | 3.6 | 30.1 | 77 | 91.3 | ||||
| 3.50 | 55 | 133.8 | 3.9 | 33.4 | 93 | 92.4 | ||||
| 4.00 | 55 | 152.9 | 3.4 | 38.2 | 92 | 93.6 |
PMDD pulley advantages
◇ Permanant magnet synchronous motor design, motor can operating with high torque at low speed. (No need gearbox for speed reduction)
◇ Outer rotor design, remove the mechanical pulley, combine all the transmission into one pulley motor, higher efficiency. Less energy consumption (15%-30% less).
◇ By removing gearbox, couplings, even mechanical pulley.
Lower failure rate
Smaller footprint
Much less maintenance
Less unplanned downtime
No alignment issue.
◇ 11kW-2000kW power range
PMDD pulley application
Jasung Permanent Magnet Direct Drive Pulley is an energy-efficient driving device that utilizes permanent magnet synchronous motor technology, specifically designed for belt conveyor systems. It is ideal for heavy-duty continuous operation scenarios requiring long service life, low energy consumption, and maintenance-free performance. Below are its main application areas:
|
Mining Industry ◇ Coal Mining and Transportation Application: Serves as a driving device for long-distance belt conveyors in underground or open-pit coal mines Advantages: Explosion-proof design, suitable for high-humidity and high-dust environments ◇ Metal Ore Mining Application: Drives conveyor systems for iron ore, copper ore, and other metal minerals Advantages: High torque output, capable of handling heavy-load startups ◇ Aggregate and Sand Transportation Application: Powers belt conveyors for construction materials like sand and gravel Advantages: Sealed structure prevents dust ingress |
 |
FAQ
Q: Applicable Voltages
A:PMDD pulleys support multiple voltage levels:
Standard: 380V, 660V, 1140V
High-voltage models: 6000V (e.g., 1120kW model in [2][3][5]) and 10000V (for ultra-high-power applications) .
Q:Power Range
A:Conventional power spans 11kW–1600kW , with typical industrial models covering:
11–630kW (standard applications)
Up to 1600kW for heavy-duty mining (e.g., 6×315kW multi-drive systems) .
Q:Multi-Drive Feasibility
A: Distributed multi-drive configurations are widely adopted in China, such as:
6×315kW setups for long-distance conveyors (>2000m)
4×250kW systems for 2500t/h capacity .
Q:Operating Frequency
A: Minimum frequency: 5Hz (supports ultra-low speed operation) .
Typical control range: 5–50Hz via vector frequency conversion .
Q: Max Load Capacity
A:Currently achieves 5000t/h (e.g., 1600kW models for mining) .
Q:Standard Belt Speeds
A: 0.8–6m/s (adjustable via frequency control)
Q: Dimensions
A: Diameters: 500–2000mm
Q: Belt widths
A: Up to 2400mm (for mining/extreme applications) .
Keyword:
11kW-2000kW power range
PMDD pulley
Explosion-proof
22-55kW
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Keywords:Permanent Magnet Direct Drive Pulley | Permanent Magnet Synchronous Motor | Permanent Magnet Direct Drive Motor
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