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The 1050W 4 Inch High Efficiency Electric 12000 RPM Brushless Motor Angle Grinder Polisher Casting Machine by HOPRIO is a cutting-edge power tool designed for both professional and DIY use. Equipped with a high-efficiency brushless motor, it achieves an impressive 12000 RPM speed, allowing for fast and precise grinding, polishing, and cutting. Ideal for construction, automotive repair, and home improvement tasks, this machine combines durability, performance, and ease of use, making it an essential tool for any workshop.
S1M-100YE3
Hoprio/OEM
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HOPRIO S1M‑100YE3 is a Industrial‑grade 100mm (4") angle grinder designed to deliver robust power in a highly portable and user‑focused format. Its defining feature is the ergonomically positioned side switch, enabling intuitive thumb‑activated control that enhances precision and comfort during extended use. Weighing only 1.6 kg and built with a compact, balanced profile, it is engineered for industrial technicians, construction crews, and tradespeople who require reliable performance in space‑constrained or on‑site conditions.
Key Features & Benefits
Ergonomic Side-Switch Design
The laterally mounted power switch allows operators to start and stop the tool without adjusting their grip. This offers greater control and responsiveness, particularly for tasks requiring frequent operation changes or when working in awkward positions.
High-Efficiency Brushless Motor
At its core is a 1050W brushless motor capable of reaching 1500W maximum output. This design eliminates the friction and wear associated with carbon brushes, translating to significantly higher energy efficiency—offering up to 40% greater grinding productivity compared to many leading conventional grinders—along with a longer operational lifespan and minimal maintenance.
Portable & Durable Construction
With a total length of 256mm, a slim 170mm handle, and a low 65mm gear housing, the tool is exceptionally maneuverable. Its lightweight build reduces operator fatigue without sacrificing the durability needed for industrial environments.
Integrated Safety Systems
Multiple protection features are standard, including soft‑start for smooth engagement, power‑off protection, overload safeguards, and undervoltage protection. These systems help prevent tool damage and enhance operator safety under demanding or variable electrical conditions.
Wide Power Compatibility
Engineered for versatility, the grinder operates reliably on standard 220‑240V power and is compatible with most engine generators, including models without integrated inverters, making it suitable for remote job sites.
Versatile Application Range
S1M‑100YE3 is capable across a broad spectrum of tasks, such as:
- Grinding and finishing metal surfaces, including rust and weld removal
- Cutting concrete, masonry, and other hard construction materials
- Polishing metal, stone, and composite surfaces to a high finish
- Shaping and cutting tiles, stone slabs, and similar materials
Controlled Manufacturing for Assured Quality
Production follows a rigorous, monitored process from component sourcing to final assembly. Utilizing modern manufacturing technology and thorough performance testing, each unit is inspected to ensure it meets HOPRIO's standards for reliability, power output, and defect‑free operation.
HOPRIO S1M‑100YE3 100mm Brushless Angle Grinder successfully merges professional power with exceptional handling. Its side‑switch configuration, combined with high efficiency, compact design, and built‑in protection, makes it an intelligent choice for professionals seeking a responsive, durable, and portable tool for a wide array of grinding, cutting, and finishing applications.
| Item No. | S1M-100YE3 | Voltage | 220-240V |
| Frequency | 50-60Hz | Rated Power | 1050W |
| Max. Power | 1500W | Rated Speed | 12000r/min |
| Disc Diameter | 100mm | Weight | 1.8KGS |
| Spindle | M10 | Accessories | Wrench |
Features: Brushless Motor, Soft Start, Power Off Protection, Overload Protection, Undervoltage Protection
HOPRIO S1M‑100YE3 is a Industrial‑grade 100mm (4") angle grinder designed to deliver robust power in a highly portable and user‑focused format. Its defining feature is the ergonomically positioned side switch, enabling intuitive thumb‑activated control that enhances precision and comfort during extended use. Weighing only 1.6 kg and built with a compact, balanced profile, it is engineered for industrial technicians, construction crews, and tradespeople who require reliable performance in space‑constrained or on‑site conditions.
Key Features & Benefits
Ergonomic Side-Switch Design
The laterally mounted power switch allows operators to start and stop the tool without adjusting their grip. This offers greater control and responsiveness, particularly for tasks requiring frequent operation changes or when working in awkward positions.
High-Efficiency Brushless Motor
At its core is a 1050W brushless motor capable of reaching 1500W maximum output. This design eliminates the friction and wear associated with carbon brushes, translating to significantly higher energy efficiency—offering up to 40% greater grinding productivity compared to many leading conventional grinders—along with a longer operational lifespan and minimal maintenance.
Portable & Durable Construction
With a total length of 256mm, a slim 170mm handle, and a low 65mm gear housing, the tool is exceptionally maneuverable. Its lightweight build reduces operator fatigue without sacrificing the durability needed for industrial environments.
Integrated Safety Systems
Multiple protection features are standard, including soft‑start for smooth engagement, power‑off protection, overload safeguards, and undervoltage protection. These systems help prevent tool damage and enhance operator safety under demanding or variable electrical conditions.
Wide Power Compatibility
Engineered for versatility, the grinder operates reliably on standard 220‑240V power and is compatible with most engine generators, including models without integrated inverters, making it suitable for remote job sites.
Versatile Application Range
S1M‑100YE3 is capable across a broad spectrum of tasks, such as:
- Grinding and finishing metal surfaces, including rust and weld removal
- Cutting concrete, masonry, and other hard construction materials
- Polishing metal, stone, and composite surfaces to a high finish
- Shaping and cutting tiles, stone slabs, and similar materials
Controlled Manufacturing for Assured Quality
Production follows a rigorous, monitored process from component sourcing to final assembly. Utilizing modern manufacturing technology and thorough performance testing, each unit is inspected to ensure it meets HOPRIO's standards for reliability, power output, and defect‑free operation.
HOPRIO S1M‑100YE3 100mm Brushless Angle Grinder successfully merges professional power with exceptional handling. Its side‑switch configuration, combined with high efficiency, compact design, and built‑in protection, makes it an intelligent choice for professionals seeking a responsive, durable, and portable tool for a wide array of grinding, cutting, and finishing applications.
| Item No. | S1M-100YE3 | Voltage | 220-240V |
| Frequency | 50-60Hz | Rated Power | 1050W |
| Max. Power | 1500W | Rated Speed | 12000r/min |
| Disc Diameter | 100mm | Weight | 1.8KGS |
| Spindle | M10 | Accessories | Wrench |
Features: Brushless Motor, Soft Start, Power Off Protection, Overload Protection, Undervoltage Protection
