[Case Study] SDLG Roller & Grader Performance Enhanced by Poclain's Solutions

With a broad portfolio of earthmoving and construction machinery, Shandong Lingong Construction Machinery Company Co., Ltd. (SDLG) is a leader in the Chinese construction equipment market. By prioritizing innovation and efficiency, and with the backing of Volvo, SDLG has become a significant global player. For over ten years SDLG has been integrating Poclain motors on its rollers and graders. 

We spoke with Mr. Ma Chengzhao, Hydraulic supervisor for Road Machinery, to learn more about the collaboration. Over the past decade, SDLG's earthmoving machines, particularly their loaders and excavators, have achieved significant success, largely driven by China’s Belt and Road Initiative. Sales in China and Southeast Asia surged as the machines' rugged design and high efficiency perfectly aligned with contractors' demands.

SDLG Chooses Poclain MS Motors for their Road Construction Machinery

Besides loaders, SDLG’s product line overlaps with Poclain’s technology on rollers and graders. Since 2013 SDLG has incorporated our products on the 3-ton tandem RD703H roller and the 12-ton single-drum RD7120H roller.

Poclain solutions have been extensively utilized across a diverse array of applications, with their technological efficiency being well-established over several decades. The Poclain MS motors, specifically employed in roller applications, exhibit stability, reliability, and compactness. These motors facilitate the direct propulsion of the rollers' drums, thereby obviating the necessity for a gearbox. 

In comparison to standardized high-speed solutions, the Poclain solution effectively eliminates “the requirement for routine gearbox oil changes, resulting in cost savings for end users. Furthermore, the implementation of localized production processes significantly reduces delivery lead times," Ma Chengzhao, SDLG Hydraulic Supervisor for Road Machinery, says.

Poclain's Solution to Power the Assist Drive on Graders

Additionally, SDLG selected Poclain’s MS motors with VDF freewheeling valves to power the assist drive on their G9220 motor graders, replacing the other motors, which used to be the preferred brand on the application until now. As users want to increase their productivity, the higher speed capacity of the MS motor is a better fit. Ma Chengzhao praised the compact and modular design of the motors, as well as the team’s hydraulic expertise.

“During the design phase, Poclain advised us on how to control the transmission’s pressure and speed. We are very satisfied with the grader’s performance in heavy snow” Ma Chengzhao says.

As competition intensifies in SDLG’s markets, Poclain’s decision to grow the share of locally sourced parts and manufacturing will reduce lead times and help SDLG become more competitive.

Interview with Ma Chengzhao, Hydraulic Supervisor for Road Machinery at Shandong Lingong Construction Machinery Company Co., Ltd. (SDLG)

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