The 1050W Lightweight 4inch AC Power Grinder is a versatile and powerful tool designed for both professional and DIY use. Featuring a cordless brushless motor and lightweight design, this grinder delivers excellent performance without compromising on convenience. Ideal for cutting, grinding, and polishing a variety of materials, it is built for efficiency and ease of use. Whether you're a seasoned professional or a hobbyist, this angle grinder is a reliable addition to your tool kit, offering superior power and durability for everyday tasks.
S1M-100YE2
Hoprio/OEM
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Product Introduction
HOPRIO S1M‑100YE2 100mm (4”) Angle Grinder is engineered for industrial users who demand a compact, lightweight, yet high‑performance tool. Weighing only 1.6 kg with a slim, balanced body (256 mm in length, 170 mm grip width), it delivers the power and reliability needed for demanding grinding, cutting, and polishing tasks—while remaining exceptionally easy to handle and operate.
Power in a Portable Design
Powered by a 1050W brushless motor (max can reach 1500W), this 4inch Mini Brushless Angle Grinder offers robust performance for its size, reaching a rated speed of 12,000 RPM. Its slim gear cover height of 65 mm improves accessibility in tight spaces, and the lightweight construction reduces operator fatigue during extended use.
Enhanced Efficiency & Compatibility
Compared to many leading international brands, this 4inch Mini Brushless Angle Grinder achieves 40% higher grinding efficiency in the same working time. It is also designed to operate reliably with engine generators, including non‑inverter models, ensuring steady performance even on remote or mobile job sites.
Built‑In Safety & Reliability
Safety features include soft‑start for smooth operation, power‑off protection, overload protection, and undervoltage protection—all integrated to safeguard both the user and the tool under varying working conditions.
Versatile Industrial Applications
- Metal Grinding: Removing rust, deburring edges, and finishing metal surfaces
- Concrete & Masonry Cutting: Efficiently cutting through tough concrete, brick, and stone
- Polishing: Achieving smooth, high‑shine finishes on various materials
- Tile & Stone Work: Precise cutting and shaping of tiles, stone slabs, and similar materials
Quality‑Focused Manufacturing
Every S1M‑100YE2 is produced using high‑quality materials and advanced manufacturing technology. From precision assembly to rigorous performance and defect testing, each unit is monitored throughout production to ensure it meets HOPRIO standards for durability, reliability, and performance consistency.
Ideal for Professionals on the Move
With its blend of compact design, industrial‑grade power, and versatile performance, HOPRIO S1M‑100YE2 is well‑suited for workshops, construction sites, maintenance teams, and field service technicians who need a reliable, easy‑to‑carry tool capable of handling a wide range of grinding, cutting, and finishing tasks.
HOPRIO S1M‑100YE2 demonstrates that size does not limit capability. By combining a high‑efficiency brushless motor with a lightweight, ergonomic body and essential safety protections, it provides industrial‑level performance in a highly portable format—making it an intelligent choice for professionals who value both power and portability.
| Item No. | S1M-100YE2 | Voltage | 220-240V |
| Frequency | 50-60Hz | Rated Power | 1050W |
| Max Power | 1500W | Rated Speed | 12000r/min |
Disc Diameter | 100mm | Weight | 1.6KGS |
| Spindle | M10 | Accessories | Wrench |
Features: Brushless Motor, Soft Start, Power Off Protection, Overload Protection, Undervoltage Protection


Product Introduction
HOPRIO S1M‑100YE2 100mm (4”) Angle Grinder is engineered for industrial users who demand a compact, lightweight, yet high‑performance tool. Weighing only 1.6 kg with a slim, balanced body (256 mm in length, 170 mm grip width), it delivers the power and reliability needed for demanding grinding, cutting, and polishing tasks—while remaining exceptionally easy to handle and operate.
Power in a Portable Design
Powered by a 1050W brushless motor (max can reach 1500W), this 4inch Mini Brushless Angle Grinder offers robust performance for its size, reaching a rated speed of 12,000 RPM. Its slim gear cover height of 65 mm improves accessibility in tight spaces, and the lightweight construction reduces operator fatigue during extended use.
Enhanced Efficiency & Compatibility
Compared to many leading international brands, this 4inch Mini Brushless Angle Grinder achieves 40% higher grinding efficiency in the same working time. It is also designed to operate reliably with engine generators, including non‑inverter models, ensuring steady performance even on remote or mobile job sites.
Built‑In Safety & Reliability
Safety features include soft‑start for smooth operation, power‑off protection, overload protection, and undervoltage protection—all integrated to safeguard both the user and the tool under varying working conditions.
Versatile Industrial Applications
- Metal Grinding: Removing rust, deburring edges, and finishing metal surfaces
- Concrete & Masonry Cutting: Efficiently cutting through tough concrete, brick, and stone
- Polishing: Achieving smooth, high‑shine finishes on various materials
- Tile & Stone Work: Precise cutting and shaping of tiles, stone slabs, and similar materials
Quality‑Focused Manufacturing
Every S1M‑100YE2 is produced using high‑quality materials and advanced manufacturing technology. From precision assembly to rigorous performance and defect testing, each unit is monitored throughout production to ensure it meets HOPRIO standards for durability, reliability, and performance consistency.
Ideal for Professionals on the Move
With its blend of compact design, industrial‑grade power, and versatile performance, HOPRIO S1M‑100YE2 is well‑suited for workshops, construction sites, maintenance teams, and field service technicians who need a reliable, easy‑to‑carry tool capable of handling a wide range of grinding, cutting, and finishing tasks.
HOPRIO S1M‑100YE2 demonstrates that size does not limit capability. By combining a high‑efficiency brushless motor with a lightweight, ergonomic body and essential safety protections, it provides industrial‑level performance in a highly portable format—making it an intelligent choice for professionals who value both power and portability.
| Item No. | S1M-100YE2 | Voltage | 220-240V |
| Frequency | 50-60Hz | Rated Power | 1050W |
| Max Power | 1500W | Rated Speed | 12000r/min |
Disc Diameter | 100mm | Weight | 1.6KGS |
| Spindle | M10 | Accessories | Wrench |
Features: Brushless Motor, Soft Start, Power Off Protection, Overload Protection, Undervoltage Protection


Sturdy Boxes: Each AC power grinder is meticulously packed in a durable, custom-designed box that provides ample protection against impact, vibration, and pressure during transit.
Internal Cushioning: High-quality cushioning materials, such as foam or bubble wrap, are used to secure the grinder within the box, preventing any movement and potential damage.
Waterproofing: The packaging is designed to be waterproof, safeguarding the grinder from moisture and potential water damage during transportation, especially in unpredictable weather conditions.
Labeling: Clear and accurate labeling is applied to each package, indicating the contents, model number, and handling instructions. This facilitates easy identification and proper handling throughout the transportation process.
Shipping and Handling Procedures:
Inventory Management: HOPRIO utilizes advanced inventory management systems to track stock levels and ensure prompt processing of orders.
Order Fulfillment: Once an order is received, the AC power grinders are carefully retrieved from the warehouse, inspected for quality assurance, and prepared for shipment.
Shipping Carriers: HOPRIO partners with reputable and reliable shipping carriers known for their secure and efficient transportation services. These carriers are selected based on their track record, coverage, and ability to meet delivery timelines.
Tracking Information: Upon shipment, customers are provided with detailed tracking information, allowing them to monitor the progress of their delivery.
Insurance: Each shipment is fully insured to protect against any potential loss or damage during transit. This provides customers with peace of mind and financial protection.
Sturdy Boxes: Each AC power grinder is meticulously packed in a durable, custom-designed box that provides ample protection against impact, vibration, and pressure during transit.
Internal Cushioning: High-quality cushioning materials, such as foam or bubble wrap, are used to secure the grinder within the box, preventing any movement and potential damage.
Waterproofing: The packaging is designed to be waterproof, safeguarding the grinder from moisture and potential water damage during transportation, especially in unpredictable weather conditions.
Labeling: Clear and accurate labeling is applied to each package, indicating the contents, model number, and handling instructions. This facilitates easy identification and proper handling throughout the transportation process.
Shipping and Handling Procedures:
Inventory Management: HOPRIO utilizes advanced inventory management systems to track stock levels and ensure prompt processing of orders.
Order Fulfillment: Once an order is received, the AC power grinders are carefully retrieved from the warehouse, inspected for quality assurance, and prepared for shipment.
Shipping Carriers: HOPRIO partners with reputable and reliable shipping carriers known for their secure and efficient transportation services. These carriers are selected based on their track record, coverage, and ability to meet delivery timelines.
Tracking Information: Upon shipment, customers are provided with detailed tracking information, allowing them to monitor the progress of their delivery.
Insurance: Each shipment is fully insured to protect against any potential loss or damage during transit. This provides customers with peace of mind and financial protection.