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Dooya DM25LEU-S Automatic Blind Opener Motor
The Dooya DM25LEU-S is a 25mm diameter battery-powered tubular motor delivering 3–6 Nm of torque at a consistent 28 RPM. Engineered for silent operation at <35 dB, it supports roller, venetian, and roman blinds using a rechargeable lithium battery and RF433 remote controls.
Quick Answer
The Dooya DM25LEU-S is a DC 12V battery tubular motor designed for 25mm tubes, offering 3–6 Nm torque and 28 RPM speed. It operates under 35 dB, features a 15,000-cycle mechanical life, and includes manual bypass but lacks native Wi-Fi or Voice control.
✓25mm tubular diameter for internal blind roller mounting
✓Silent operation verified at <35 dB noise levels
✓Integrated 3–6 Nm torque for medium-sized residential blinds
✓Operating speed of 28 RPM for consistent blind movement
✓Rechargeable lithium battery with optional solar charging support
✓RF433 frequency integration for remote and switch control
✓IP44 protection rating for moisture and dust resistance
Choose the Dooya DM25LEU-S if you require a wire-free, silent (<35 dB) solution for 25mm blind tubes. It is ideal for residential use where manual override and long life (15,000 cycles) are prioritized over smart app connectivity.
✓ Who Should Buy
- • performance suitable for residential spaces.
- •Verified efficiency of standard rating for reduced long-term operational costs.
- •Structural stability for consistent cleaning under rigorous use cases.
- •Hardware durability via premium components and advanced technology.
- •Built-in grid protection with Standard power cycle voltage management.
✕ Who Should Avoid
- •Spaces or usage requirements exceeding residential rated capacity.
- •Installations prioritizing minimum capital expenditure over high-efficiency performance.
- •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
- •Environments incompatible with automatic curtain physical and thermal dissipation specs.
Product Overview
The Dooya DM25LEU-S is a specialized battery tubular motor for roller, venetian, and roman blinds, delivering 3–6 Nm of torque within a 25mm diameter housing. Running on a DC 12V rechargeable lithium battery, this motor provides an operating speed of 28 RPM while maintaining a noise floor below 35 dB. It is designed for residential efficiency with an IP44 protection rating and an operating temperature range of -20°C to +60°C. The system utilizes RF433 remote controls and physical switches, though it does not support native smartphone apps or voice assistant ecosystems. With a lifespan rated for 15,000 cycles or approximately 8 years, the motor includes a manual bypass and energy-saving mode to maximize battery performance. Safety features include thermal protection, overload protection, and anti-jamming technology to ensure the 25mm motor operates reliably under its 3–6 Nm load capacity. It is certified under CE, RoHS, and ISO standards, ensuring compliance for modern window treatment automation without the need for external wiring.
| Brand | Dooya |
| Model | DM25LEU-S |
| Type | automatic blind opener battery tubular motor |
| Color | White |
| Body Material | N/A |
| Finish | Smooth |
| Installation Type | tubular inside blind roller |
| Compatibility | N/A |
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Engineering Analysis
The engineering of the DM25LEU-S centers on its 25mm tubular form factor, housing a single-phase DC motor optimized for 28 RPM rotation. Acoustic engineering limits output to <35 dB, achieving silent operation through a sealed motor design that requires minimal lubrication. The power management system utilizes an energy-efficient A-rated motor with a low-power standby mode to preserve the lithium battery charge. Protection circuitry includes thermal and overload sensors, coupled with an anti-jamming auto-stop mechanism to prevent damage at the torque limit of 6 Nm. The RF433 integration provides instant <1s response times for remote commands, while the manual bypass allows for operation during battery depletion. The 15,000-cycle mechanical life is supported by steel and plastic internals designed to withstand temperatures up to 60°C, providing a Mean Time Between Failures (MTBF) of over 20,000 hours.
Technical Support & FAQs
Engineering Analysis
The engineering of the DM25LEU-S centers on its 25mm tubular form factor, housing a single-phase DC motor optimized for 28 RPM rotation. Acoustic engineering limits output to <35 dB, achieving silent operation through a sealed motor design that requires minimal lubrication. The power management system utilizes an energy-efficient A-rated motor with a low-power standby mode to preserve the lithium battery charge. Protection circuitry includes thermal and overload sensors, coupled with an anti-jamming auto-stop mechanism to prevent damage at the torque limit of 6 Nm. The RF433 integration provides instant <1s response times for remote commands, while the manual bypass allows for operation during battery depletion. The 15,000-cycle mechanical life is supported by steel and plastic internals designed to withstand temperatures up to 60°C, providing a Mean Time Between Failures (MTBF) of over 20,000 hours.