The KOEO RY0302 is an advanced VFD variable speed 3.2 ton single phase electric chain hoist that brings precision speed control to single phase power applications. Featuring an integrated Variable Frequency Drive (VFD) inverter paired with a 2.2 kW single phase motor, the RY0302 enables stepless speed regulation from 2.3m/min creep speed for micro-positioning to 7m/min for rapid lifting cycles. This eliminates the jerky start-stop motion of conventional hoists, reducing mechanical shock and extending component life. With IP55 motor protection, premium G80 alloy steel chain, dual electromagnetic DC brakes, and low headroom compact design, the RY0302 is the most technically advanced single phase electric chain hoist available for precision manufacturing, mold handling, and delicate assembly operations.

• Single Phase VFD Variable Speed Control: The built-in VFD inverter powered by 220V single phase input provides stepless speed control from 2.3-7 m/min. Soft-start and soft-stop operation eliminates mechanical shock, reduces chain wear by up to 30 percent, and enables millimeter-level positioning accuracy for precision assembly and mold handling tasks.
• Creep-Speed Micro-Positioning at 2.3 m/min: The ultra-slow creep speed mode enables operators to position loads with exceptional precision, making the RY0302 ideal for CNC machine tool loading, injection mold installation, and assembly operations where final placement accuracy is critical to prevent component damage.
• 2.2 kW Single Phase VFD Motor: The inverter-duty 2.2 kW motor is specifically designed for single phase VFD operation with enhanced winding insulation to withstand voltage spikes. IP55 protection and Class F insulation ensure reliable performance in manufacturing environments with airborne particulates and humidity.
• G80 Alloy Steel Load Chain: Premium 8.0 mm G80 calibrated alloy steel chain with 4:1 safety factor. The hardened chain guides and precision load sheave are optimized for VFD variable-speed operation, minimizing friction across the full speed range from creep to rapid lift.
• Dual Electromagnetic DC Brake System: Twin independent DC electromagnetic brakes provide redundant load holding with instant engagement upon power interruption or emergency stop. The dual-brake configuration ensures maximum safety during precision positioning of high-value components.
• Low Headroom Design for Standard Ceilings: The space-optimized body maintains a compact headroom profile, enabling installation in workshops and small factories with ceiling heights as low as 3 meters while still providing usable lift height on standard 220V single phase power.
• VFD Controller with 48V Pendant: The VFD control unit features a digital display for speed monitoring and parameter adjustment, paired with an ergonomic 48V pendant for intuitive up/down operation. Speed presets can be configured for specific repetitive tasks, reducing operator training requirements.

The RY0302 VFD single phase electric chain hoist is engineered for injection mold handling in plastics manufacturing, CNC machine tool workpiece loading and unloading, precision assembly operations in automotive component production, glass and ceramic handling requiring impact-free lifting, and small factory automation cells where three-phase power is unavailable. The VFD soft-start capability is particularly valuable when handling fragile or high-value components where conventional single-speed hoists risk damage from sudden acceleration or jerky stop-start motion.

Each RY0302 hoist is packed in a KOEO-branded heavy-duty plywood case with VCI anti-rust film, reinforced high-density foam padding, and silica gel desiccant packs. Export-grade outer carton with steel banding ensures secure international transit. Every unit undergoes 100 percent factory load testing at 1.25 times rated capacity (4 tons) across the full VFD speed range with test documentation including VFD parameter verification. CE certified compliant with EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. Manufactured under ISO 9001:2015 quality management systems. G80 chain certified to EN 818-7. Standard delivery within 7 to 10 working days for stock, 20 to 25 days for production orders.