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Jasung Gearless Motor Pulley - Permanent Magnet Belt Conveyor Drive 60-160kW
When three-phase symmetrical alternating current is applied to the stator windings, the interaction between the rotating magnetic field and the permanent magnets produces torque. This electromagnetic interaction drives the pulley's rotation, enabling motor operation without requiring additional transmission components.
Classification:
PMDD pulley description
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The Jasung outer rotor permanent magnet motor technology features a unique permanent magnet direct drive (PMDD) pulley design. In this configuration:
Stationary Component (Stator Equivalent)
◇The central shaft remains fixed, functioning as the motor's stator assembly
◇A laminated stator core, constructed from precision-stacked silicon steel sheets, is securely mounted on the shaft
◇The core contains embedded three-phase stator windings that generate a rotating magnetic field when energized with symmetrical AC current
Rotating Component (Rotor Equivalent)
◇The pulley surface serves as the motor's rotor element
◇A rotor assembly composed of laminated silicon steel sheets is fixed to the pulley's inner surface
◇High-performance UH-grade permanent magnets are embedded within the rotor structure, creating a persistent static magnetic field
Operational Principle
When three-phase symmetrical alternating current is applied to the stator windings, the interaction between the rotating magnetic field and the permanent magnets produces torque. This electromagnetic interaction drives the pulley's rotation, enabling motor operation without requiring additional transmission components.
The direct drive design offers enhanced efficiency and reliability by eliminating mechanical transmission losses associated with conventional drive systems.
| 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 (%) |
| 1400 | 630 | 1600 | 1.60 | 82 | 48.5 | 16.1 | 12.1 | 144 | 0.97 | 89.3 |
| 2.00 | 110 | 60.7 | 17.3 | 15.2 | 189 | 91.0 | ||||
| 2.50 | 132 | 75.8 | 16.6 | 19.0 | 223 | 92.6 | ||||
| 3.15 | 160 | 95.5 | 16.0 | 23.9 | 268 | 93.4 | ||||
| 3.50 | 185 | 106.2 | 16.6 | 26.5 | 308 | 94.2 | ||||
| 4.00 | 220 | 121.3 | 17.3 | 30.3 | 363 | 95.0 | ||||
| 650 | 800 | 750 | 1.25 | 40 | 29.9 | 12.8 | 10.0 | 72 | 0.97 | 86.5 |
| 1.60 | 45 | 38.2 | 11.2 | 12.7 | 80 | 88.0 | ||||
| 2.00 | 55 | 47.8 | 11.0 | 15.9 | 96 | 89.5 | ||||
| 2.50 | 82 | 59.7 | 13.1 | 19.9 | 141 | 91.0 | ||||
| 3.15 | 110 | 75.2 | 14.0 | 25.1 | 186 | 92.5 | ||||
| 3.50 | 110 | 83.6 | 12.6 | 27.9 | 185 | 93.1 | ||||
| 4.00 | 132 | 95.5 | 13.2 | 31.8 | 221 | 93.7 | ||||
| 4.50 | 145 | 107.5 | 12.9 | 35.8 | 241 | 94.3 | ||||
| 5.00 | 160 | 119.4 | 12.8 | 39.8 | 264 | 94.9 | ||||
| 1.25 | 22 | 29.9 | 7.0 | 10.0 | 39 | 87.4 | ||||
| 1.60 | 30 | 38.2 | 7.5 | 12.7 | 53 | 88.8 | ||||
| 2.00 | 37 | 47.8 | 7.4 | 15.9 | 64 | 90.2 | ||||
| 2.50 | 45 | 59.7 | 7.2 | 19.9 | 77 | 91.7 | ||||
| 3.15 | 55 | 75.2 | 7.0 | 25.1 | 93 | 93.1 | ||||
| 3.50 | 68 | 83.6 | 7.8 | 27.9 | 114 | 93.5 | ||||
| 4.00 | 75 | 95.5 | 7.5 | 31.8 | 125 | 93.8 | ||||
| 4.50 | 82 | 107.5 | 7.3 | 35.8 | 136 | 94.2 | ||||
| 5.00 | 90 | 119.4 | 7.2 | 39.8 | 149 | 94.6 |
Permanent Magnet Direct Drive (PMDD) Pulley Motor – Key Advantages
◇High Torque at Low Speed – No Gearbox Required
◇Permanent magnet synchronous motor (PMSM) design delivers high torque even at low speeds
◇Eliminates the need for a gearbox, reducing energy losses and mechanical complexity
◇Outer Rotor Design – Integrated Pulley Motor for Maximum Efficiency
◇Combines motor and pulley into a single compact unit, removing traditional transmission components
◇15–30% lower energy consumption compared to conventional motor-pulley systems
◇Simplified System – Fewer Components, Higher Reliability
◇No gearbox, couplings, or separate mechanical pulley
◇Lower failure rate – Reduced wear and tear on components
◇Smaller footprint – Compact design saves space
◇Minimal maintenance – Fewer moving parts mean less servicing
◇No unplanned downtime – More reliable operation
◇No alignment issues – Eliminates misalignment-related failures
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:
60-160kW
Stationary Component
Rotating Component
Explosion-proof
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Keywords:Permanent Magnet Direct Drive Pulley | Permanent Magnet Synchronous Motor | Permanent Magnet Direct Drive Motor
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