See how two WALMECH Single Drum vibrating smooth wheeled rollers helped a Ghanaian contractor complete a critical highway project 20% faster with 99% reliability.
I. Client Background
A prominent civil engineering firm in Ghana secured a contract to rehabilitate a critical 60-km highway in the Western Region, a major corridor for mining and agricultural logistics.
The existing road had deteriorated significantly due to years of heavy truck traffic, with deep potholes and unstable sections that slowed transport and increased vehicle operating costs. The project demanded heavy road roller equipment capable of handling lateritic subgrade and crushed stone base layers to ensure long-term durability under continuous heavy loads. With a strict 12-month deadline and penalties for delays, the client needed reliable, high-performance compaction machinery that would minimize downtime and maximize efficiency.
II. WALMECH Machine Solutions
The client deployed two WALMECH single drum vibrating smooth wheeled rollers sourced from a trusted road roller manufacturer in China, Qhmach, which has over 20 years of industry expertise:
WALMECH WS265HD 26-ton Single Drum Vibrating Smooth Wheeled Roller – assigned for subgrade and base layer compaction.
WALMECH WS336HD 33-ton Single Drum Vibrating Smooth Wheeled Roller – deployed for the highest-demand sections, including thick lifts and deep fills.
Both models were chosen for their proven reliability, high centrifugal force, and excellent traction on sloping terrain—common challenges in Ghana’s road construction environment.
III. WALMECH Machine Parameters
Both machines feature heavy-duty diesel engines, dual-frequency vibration systems, and robust frames designed for continuous operation in tropical conditions.
IV. Performance Results
Over the 8-month project, the WALMECH vibrating smooth wheeled rollers delivered outstanding performance:
20% faster compaction cycles compared to previously used equipment, achieved in fewer passes.
99% operational uptime, with no major breakdowns despite daily 10-hour shifts in high temperatures and dusty conditions.
Consistently exceeded compaction density requirements (≥98% of modified Proctor) as verified by on-site testing.
The WS336HD was particularly effective on high-embankment sections, achieving deep-layer compaction that significantly reduced the risk of future settlement. As a big road roller, it handled thick lifts that other machines could not manage efficiently.
V. Client Feedback and the Future
The client’s equipment manager commented:
*“The WALMECH WS265HD and WS336HD vibrating smooth wheeled rollers have been game-changers. They deliver the power and reliability we need to meet our deadlines. The WS336HD is a true big road roller that handles thick lifts other equipment couldn’t.”*
Impressed by the performance and backed by Qhmach’s support as a reliable road roller supplier with fast parts availability, the company has since ordered two additional WS225HD (22-ton) rollers for upcoming urban road projects. They are also exploring Qhmach’s pneumatic tire rollers for final surface compaction on future asphalt paving jobs. The client noted that choosing a reputable road roller manufacturer made a significant difference in project efficiency, and they consider the WS336HD a prime example of a heavy road roller built for demanding conditions.
