Product Specifications and Features
The document describes a compact and efficient road roller designed for asphalt surface compaction and leveling foundations of ditches, roads, sports fields, and lawns. Key features include a compact structure for easy transportation, high working efficiency, and steel wheels with self-cleaning scrapers to prevent dust and asphalt accumulation. The machine is powered by a domestic Changchai engine, offering strong power and easy start-up, with a two-way hydraulic walking system for simple operation and flexible rotation. The surface is treated to be rust and corrosion-resistant.

Engine and Hydraulic System
The machine can be equipped with an international brand Honda gasoline engine or a renowned diesel engine, ensuring quality and superior performance. It features a SAUER hydraulic transmission unit for stepless speed change and easy direction change. NSK bearings and MITSUBOSHI belts are used to ensure optimal working performance.

Technical Parameters
The document provides detailed technical parameters, including a rated power of 4 kW, working weight of 420 kg, vibration force of 25 KN, and a walking speed of 0-4 km/h. The machine has a gradeability of 30°, vibration frequency of 70 HZ, and a static line load of 45 N/cm. It operates with a hydraulic drive and mechanical vibration mode, with manual or electric start options.

After-Sales Service
The company offers a comprehensive after-sales service with a 24-hour hotline. Service engineers respond within 15 minutes and can provide remote guidance or on-site maintenance within 24 hours if necessary. A rapid response mechanism is in place for major situations, and customer feedback is actively sought to improve service quality.

Company Overview
Shandong Hengwang Group, founded in 2011, is a high-tech enterprise in Jining, Shandong Province, China. It integrates R&D, design, manufacturing, international trade, e-commerce, and logistics. The company focuses on innovation and quality, offering over 40 categories of machinery, including excavators and road rollers. Hengwang emphasizes intellectual property, talent cultivation, and has obtained numerous patents and certifications. Its business spans Asia, Africa, North America, and Oceania.

Core Values and Customer Service
Hengwang is committed to providing high-value products and services, with a one-stop service system that includes product experience, user training, repair support, and spare parts supply. The company upholds values of perseverance, integrity, and continuous innovation, aiming to build a century-old brand and leading corporate culture.