China OEM Dig Dog Mechanical Hand Hold Compactor Simple Road Roller

Product Description

DMR50 Walk-behind Double Drum Vibratory Road Roller

DIG-DOG Compacting Machinery

DMR50 walk-behind double drum vibratory road roller is used for compacting asphalt pavement, compacting CHINAMFG and sand, rolling lawn, soil, etc. It is often used in asphalt roads, sidewalks, bridges and culverts, parking lots, stadiums and narrow venues. The DMR50 mini roller can vibrate vertically. It has large excitation force and high compaction efficiency. It is an ideal equipment for highway and municipal departments to build roads, streets and squares. The DMR50 double drum mini roader roller can move CHINAMFG and backward, and has the characteristics of convenient reversing, flexible steering, labor saving and convenient operation; the “reversing” forced reversing lever device makes the operation safer. Its armrests can be raised to reduce transport space. If you want to buy a small roller, please contact us.


Our Advantages

1. Equipped with famous brand power supply, famous brand quality assurance, superior performance and easy startup;
2. Adopt internationally renowned brand hydraulic variable pump and quantitative motor, Continuously Variable Transmission, CHINAMFG and backward walking, and convenient reversing;
3. Adopt internationally renowned brands of hydraulic quantitative motors with low noise, high efficiency, low energy consumption and long life;
4. The front and rear drums are articulated through hydraulic steering, making the steering light and labor-saving;
5. Integrated control of forward/reverse and vibration; 5. Use CHINAMFG precision bearings to ensure the working performance of the machine;
6. The mechanical surface is sprayed with plastic, which is beautiful, rust-proof and corrosion-resistant; 7. Computerized controlled access to alarms, monitoring and water spraying.

Product Parameters

Model DMR-50 DMR-50C DMR-50CS
Engine model Honda GX 270 Changchai / Chang CF178 Changchai / Chang R180
Engine type Gasoline / single cylinder / vertical / four-stroke / overhead valve Diesel / single-cylinder / vertical / air-cooled / four-stroke range Diesel / single-cylinder / horizontal / water-cooled evaporation / four-stroke range
Power 9 Hp 7 Hp 7.6 Hp
Package Size 1600 × 850 × 1900 mm
Walking way bidirectional hydraulic, chain transmission
Static line load 45 n/cm
Oscillation Amplitude 0.6 mm
Frequency of oscillation 70 Hz
Work width 780 mm
Length (square square) 2480 mm
Machine height  (L) 1820 mm
Excited force 20 KN
Steel wheel width x diameter(WI x HI) 600 × 426 mm
Wheel-base 650 mm
Speed 0-4 Km/h
Theoretical climbing ability 30°
Sprinkler form Gravity shower
Operation weight 540 Kg 540 Kg 570 Kg
Hydraulic oil capacity 18 L
Fuel capacity 5.9 L 2.7 L 6.5 L
Lubricating oil 1.1 L 1.1 L 2 L
Water tank capacity 20 L 20 L


Standard configuration:
-Two-way hydraulic chain drive travel
-Series travel drive
-The operation panel of the extended support armrest is on the extended armrest
-Each steel wheel is equipped with 2 scrapers
-Gravity water spray system Japanese CHINAMFG Seiko bearings
-Japan CHINAMFG (Samsung) triangle belt

Optional equipment:
-LED headlights
-Grooved compaction cam drum

Detailed Photos




Operation Panel

1 click start operation saves time and effort,

The control dashboard is fully functional

and can fully control the operation condition

of the machine at any time.



with a simple and highly efficient scraper

for removing mud, dirt, gravel, etc,

from the periphery of the roller.



Hydraulic Vibration and Steering

steering is light and labor-saving;

Edge compacted,

flat and fast.

Famous Brand Engine

Equipment famous brand power,

famous brand quality assurance,

superior performance, easy to start.





Feedback from customers

With the development of cities, mini rollers have become popular all over the world. Small rollers are mainly used to repair coverings around pits and edges, compacting asphalt backfilled in small trenches, and are suitable for narrow spaces such as asphalt pavements, sidewalks, bridges, parking lots, sports fields, lawns, etc. DIG-DOG road vibratory rollers are divided into walk-behind rollers, ride-on rollers, double drum rollers and single drum rollers. Contact us today to get mini roller prices.


Company Profile

DIG-DOG, Dig the world!

DIG-DOG is a branch of CHINAMFG Group. We have an independent brand and are dedicated to excavation projects in the construction machinery market. 

DIG-DOG can provide excavators, wheel loaders, backhoe loaders, skid steer loaders, forklifts for the construction machinery industry, so that 
you can buy not only a single machine, but also full range of multi-functional and customized attachments to deal with different work requirements.

DIG-DOG machinery products exported more than 80 countries, and DIG-DOG have our own brand agents in North America, South America, Europe and many other regions,and we welcome more friends to become our brand agents. We can provide customers with more convenient and comprehensive after-sales service. Choose DIG-DOG to make your excavation work more easier and more convenient, and choose DIG-DOG to fully realize the possibility of configuring more accessories for the machine.


1. Are You Original Manufacture? 
Yes, DIG-DOG is a Manufacture In Construction Machinery In China And We Have The Wholeseries
Products You Need. 
2.Which Incoterms Terms Can We Work?
Normally We Work On FOB, CFR, CIF. 
3.Which Payment Terms Do You Accept? 
Normally We Can Work On T/T Term Or L/C Term.
4.What About The Warranty Time?
12 Months After Shipment Or 2000 Working Hours. 
5.What About The Delivery Time? 
7-30 Days After Receiving The Deposit. 
6.What About The Minimum Order Quantity? 
The MOQ Is 1 Pcs. 
7.How Do I Choose The Right Walk-Behind Vibratory Road Roller?
-Type of material that will be compacted (dirt, sand, gravel, asphalt, etc.)
-Size of area.
-Site layout (open area or confined areas)
-Transportation to and from the job site.
8. Price Difference?
The product prices on the website fluctuate due to factors such as raw material costs. Please refer to the quotation from the business person in charge.



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After-sales Service: Provide
Warranty: Provide
Type: Road Roller
US$ 2200/Piece
1 Piece(Min.Order)


Order Sample



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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

cam roller

How does the choice of cam rollers affect the overall performance and reliability of tracking systems?

The choice of cam rollers plays a crucial role in determining the overall performance and reliability of tracking systems. Different factors associated with cam rollers can significantly impact the system’s functionality, efficiency, and longevity. Here’s a detailed explanation of how the choice of cam rollers affects the overall performance and reliability of tracking systems:

  • Load Capacity: The load capacity of cam rollers is a critical consideration. Choosing cam rollers with an appropriate load capacity ensures that the tracking system can handle the required weight and forces without compromising performance or risking component failure. Selecting cam rollers with inadequate load capacity may lead to premature wear, excessive friction, or system instability, affecting the overall reliability and performance.
  • Roller Material and Durability: Cam rollers are available in various materials, such as steel, stainless steel, or plastic. The choice of material impacts the durability, resistance to wear, and overall lifespan of cam rollers. In harsh or corrosive environments, selecting corrosion-resistant materials can enhance the reliability and longevity of the tracking system. Evaluating the operating conditions and selecting cam rollers with appropriate material properties is essential for ensuring long-term performance.
  • Lubrication Requirements: Proper lubrication is crucial for the smooth operation and longevity of cam rollers. Different types of cam rollers have varying lubrication requirements, ranging from self-lubricating options to those that require regular maintenance. Consider the lubrication demands of cam rollers and ensure that they align with the operational needs and maintenance capabilities of the tracking system. Adequate lubrication reduces friction, minimizes wear, and enhances the overall reliability of the system.
  • Accuracy and Precision: The choice of cam rollers can affect the accuracy and precision of the tracking system. Cam rollers with high-quality manufacturing and precision engineering contribute to smoother and more consistent motion. They provide better control over acceleration, deceleration, and dwell periods, resulting in improved tracking accuracy. Selecting cam rollers with the appropriate design and manufacturing tolerances ensures the desired level of precision in tracking applications.
  • Environmental Compatibility: Different tracking systems operate in various environmental conditions, including temperature extremes, dust, moisture, or contaminants. The choice of cam rollers should consider the compatibility with the specific environment in which the tracking system will be utilized. Opting for cam rollers designed to withstand environmental factors enhances the reliability and performance of the system, preventing premature wear or damage due to environmental stressors.
  • Track Configuration: Cam rollers are available in various configurations to accommodate different track types, such as linear tracks, curved tracks, or complex multi-axis tracks. Choosing cam rollers that align with the track configuration required by the application ensures optimal performance and reliability. The compatibility between the cam rollers and the track configuration affects the system’s ability to handle the desired motion patterns, trajectories, and load distribution effectively.
  • Compatibility with Object Characteristics: Cam rollers should be selected based on the characteristics of the objects or components being tracked. Consider factors such as shape, size, weight, and surface properties of the objects. Choosing cam rollers that are compatible with the specific object characteristics ensures proper alignment, secure tracking, and reliable performance. Incorrect sizing or mismatched specifications may lead to tracking errors, poor contact, or even damage to the objects being tracked.
  • Manufacturing Quality and Standards: The overall performance and reliability of cam rollers depend on the manufacturing quality and adherence to industry standards. Choosing cam rollers from reputable manufacturers known for their quality control processes and compliance with relevant standards ensures reliable and consistent performance. High-quality cam rollers are less prone to premature wear, misalignment, or unexpected failures, resulting in improved reliability and overall system performance.

Considering these factors and making an informed choice regarding cam rollers is essential for optimizing the performance, efficiency, and reliability of tracking systems. Thoroughly evaluating the application requirements, environmental conditions, and operational needs will help select cam rollers that are best suited for the specific tracking system, leading to enhanced performance and increased reliability.

cam roller

How do cam rollers contribute to precise and controlled motion in machinery?

Cam rollers play a significant role in ensuring precise and controlled motion in various machinery applications. Their design and functionality contribute to accurate tracking, smooth operation, and controlled movement. Here’s a detailed explanation of how cam rollers contribute to precise and controlled motion in machinery:

  • Cam Profile Following: Cam rollers are specifically designed to follow the profile of a cam or track. The outer ring of the cam roller is shaped to match the contour of the cam surface. As the cam rotates or moves, the cam roller maintains contact with the cam profile, ensuring precise tracking and controlled motion along the desired path. This cam profile following capability enables machinery to achieve accurate and repeatable motion.
  • Rolling Motion: Cam rollers utilize rolling motion to traverse the cam profile. The rolling motion reduces friction compared to sliding or rubbing contact, resulting in smoother operation and improved energy efficiency. The rolling action of cam rollers allows for controlled movement with minimal resistance, ensuring precise motion and minimizing wear and tear.
  • Load Distribution: Cam rollers are designed to distribute the applied load evenly among the rolling elements. This load distribution capability minimizes stress concentrations and prevents excessive wear on individual rollers. By distributing the load effectively, cam rollers contribute to maintaining precise and controlled motion without compromising performance or causing premature failure.
  • High Rigidity: Cam rollers are constructed to provide high rigidity, which is vital for precise and controlled motion. The materials and design of cam rollers ensure minimal deformation or flexing during operation, allowing for accurate positioning and controlled movement. The high rigidity of cam rollers enables machinery to maintain tight tolerances and achieve the desired motion without unwanted deviations.
  • Roller Retainers: Some cam roller designs incorporate roller retainers or cages that hold the rolling elements in place and maintain proper spacing. These retainers prevent roller skewing and ensure controlled movement by guiding the rollers along the cam profile. The use of roller retainers enhances precision and eliminates the risk of roller misalignment, contributing to precise and controlled motion in machinery.
  • Precision Bearings: Cam rollers are equipped with precision bearings that provide smooth rolling motion and reduce internal friction. These bearings are designed to handle both radial and axial loads, ensuring stable and controlled motion in various directions. The precision bearings in cam rollers contribute to the overall precision and controlled movement of the machinery.

By incorporating these design features and functionalities, cam rollers contribute to precise and controlled motion in machinery. They enable accurate tracking of cam profiles, utilize rolling motion with reduced friction, distribute loads evenly, provide high rigidity, use roller retainers for proper alignment, and utilize precision bearings for smooth operation. All these factors work together to ensure precise positioning, controlled movement, and reliable performance in a wide range of machinery applications.

In summary, cam rollers contribute to precise and controlled motion in machinery through their cam profile following capability, rolling motion, load distribution, high rigidity, roller retainers, and precision bearings. These features enable machinery to achieve accurate positioning, smooth operation, and controlled movement, resulting in improved performance and productivity.

cam roller

Can you describe the factors to consider when selecting cam rollers for specific applications?

When selecting cam rollers for specific applications, several factors need to be considered to ensure optimal performance, reliability, and longevity. The suitability of a cam roller for a particular application depends on various parameters and requirements. Here’s a detailed explanation of the factors to consider when selecting cam rollers:

  • Load Capacity: One of the primary considerations is the anticipated load capacity of the cam roller. The cam roller should have sufficient load-carrying capacity to support the expected radial and axial loads in the application. It is important to consider both static and dynamic loads, as well as any potential shock or impact loads that may occur.
  • Speed and Acceleration: The speed at which the cam roller will operate, as well as the acceleration and deceleration rates, should be taken into account. High-speed applications require cam rollers that can accommodate the associated centrifugal forces and provide smooth rolling motion without excessive heat generation. Additionally, the roller should be able to handle the acceleration and deceleration forces without compromising performance.
  • Precision Requirements: Depending on the application, precision requirements may vary. Some applications demand high positioning accuracy and minimal deviation, while others may have looser tolerances. It is important to select a cam roller that can meet the desired precision requirements, ensuring accurate tracking and motion control.
  • Operating Conditions: Consider the operating conditions in which the cam roller will be used. Factors such as temperature, humidity, dust, and corrosive environments can impact the performance and longevity of the cam roller. Choose a cam roller that is designed to withstand the specific operating conditions of the application, ensuring durability and reliability.
  • Lubrication and Maintenance: Proper lubrication is crucial for the smooth operation and longevity of cam rollers. Consider the lubrication requirements of the cam roller and whether it has provisions for effective lubrication. Additionally, assess the maintenance needs and accessibility of the cam roller for periodic inspection, lubrication replenishment, and potential replacement.
  • Mounting and Attachment: Evaluate the mounting and attachment options available for the cam roller. Different applications may require stud-type cam rollers or yoke-type cam rollers, depending on the attachment method and space constraints. Ensure that the chosen cam roller can be securely mounted and aligned with the moving parts of the system.
  • Cost and Availability: Finally, consider the cost and availability of the cam roller. Evaluate the overall cost-effectiveness of the selected cam roller, taking into account its performance, longevity, and maintenance requirements. Additionally, ensure that the chosen cam roller is readily available from reliable suppliers to avoid delays or compatibility issues.

By considering these factors, you can select the most suitable cam roller for a specific application, ensuring optimal performance, reliability, and longevity. It is advisable to consult with manufacturers or industry experts to obtain guidance and recommendations tailored to your specific requirements.

In summary, the factors to consider when selecting cam rollers for specific applications include load capacity, speed and acceleration requirements, precision needs, operating conditions, lubrication and maintenance considerations, mounting and attachment options, as well as cost and availability. Assessing these factors will help in choosing the appropriate cam roller that meets the unique demands of the application.

China OEM Dig Dog Mechanical Hand Hold Compactor Simple Road Roller  China OEM Dig Dog Mechanical Hand Hold Compactor Simple Road Roller
editor by CX 2024-03-07