EOT Crane Manufacturers in India

DRS and DRS-M Wheel Block Systems: Modular Solutions for Custom Applications

Our DRS wheel block system is a versatile travel wheel solution designed for heavy-load handling applications. To expand its capabilities, we introduced the DRS-M series, which adds new features and improved performance.

Both systems are designed to integrate smoothly with Demag modular drive systems, making them ideal for a wide range of industrial applications.

The product range includes eight precisely graded sizes, ensuring that the right wheel block is available for almost any requirement:

DRS-M 112 to 200 – Load capacity from 2.75 to 10 tonnes
DRS 250 to 500 – Load capacity from 16 to 40 tonnes

These wheel block systems are also perfectly suited for repair and assembly work, offering flexibility, durability, and easy integration into existing systems.

The wide range of travel wheels and special wheel designs allows our systems to be adapted to almost any travel rail or operating condition. These solutions are cost-effective and ready for installation, making them suitable for many industrial applications.

Wide performance range with high load capacity
Many standard travel wheel shapes available along with custom-designed options
Four connection variants to easily integrate with the customer’s superstructure
High-quality housing that provides excellent protection for the wheels and bearings
Strong and rigid design for reliable operation
Direct connection options for additional accessories
Laser alignment system available for precise alignment of wheel blocks in multi-travel units

The DRS-M wheel blocks also come with additional advanced features that further improve flexibility, efficiency, and performance in demanding applications.

Prepared for accessories

Flexible Planning

Our wheel block systems are designed for flexible and convenient planning. Thanks to integrated threaded boreholes, optional accessories such as guide rollers or rail sweepers can be easily installed.

These accessories can either be mounted directly on the wheel block during installation or added later whenever needed. This flexibility makes it easier to adapt the system to changing requirements without complicated modifications.

Fixed alignment

The innovative installation connection allows wheel blocks to be replaced quickly and easily without the need for time-consuming readjustments.

A fixed alignment element can be mounted directly to the steel structure, ensuring that the wheel block stays perfectly aligned and precisely positioned even after it has been replaced. This makes maintenance faster, simpler, and more efficient while maintaining reliable system performance.

Mechanical wear measurement

Regular inspection of wheels is important to ensure safe and reliable operation. In addition to the flange wear indicator, the DRS-M system also makes it easy to check the condition of the travel wheel tread.

It features a mechanical wear indicator that allows you to monitor the current level of wheel wear. The inspection can be done while the system is at standstill and regardless of the wheel’s position.

The wear level is clearly displayed on a color scale, making it quick and easy to understand the condition of the wheel and decide if maintenance is required.

Product information

Exact configuration

Our wheel block systems are available in eight different sizes, with load capacities ranging from 2.75 to 40 tonnes per wheel. This wide range allows you to choose the exact configuration that best fits your application.

The wheels are available in various shapes and designs, made from high-quality materials such as:

Spheroidal-graphite cast iron (GGG 70) for strong and durable performance
Polyamide wheels for quieter operation and reduced wear
Wheels with Hydropur tyres for improved flexibility and smooth movement

This variety ensures the wheel system can be adapted to different operating conditions and application requirements.

A: Wheels with flanges on both sides, designed for rail-guided systems.

B: Flangeless wheels that can be fitted with lateral guide rollers if required. Also available in concave shapes or custom contours based on customer specifications.

D: Wheels with a single flange on one side, suitable for units that run at floor level.

E: Large-diameter flangeless wheels that provide greater ground clearance.

S: Wheels available in V-shaped, trapezoidal, or concave designs for guided applications.

F: Flangeless travel wheels with Hydropur tyres, designed for high acceleration and quieter operation.

C: Flangeless concave polyamide wheels, ideal for quiet operation and gentle movement that protects the runway surface.

This wide variety of wheel options allows the system to be perfectly matched to different applications and operating environments.

Many connection options

Our wheel block systems offer multiple connection options to make installation easier and more flexible. The prepared mounting surfaces allow them to be connected in many different ways depending on the application.

They support top and end connections using bolted or welded elements, as well as side and pin connection arrangements. This flexibility makes it simple to integrate the wheel blocks into almost any structure or system design.

Connection Types

Our wheel systems offer different connection types to suit various installation needs:

K: Top connection – Mounted from the top for easy integration into structures.

B: Pin connection – Connected using pins for flexible and secure mounting.

S: End connection – Installed from the end side of the structure.

W: Side connection – Attached from the side for specific design requirements.

Custom solutions are also available to meet special application or structural needs.

Complete Travel Units with Matched Geared Motors

Our wheel block systems can be supplied as complete travel units with perfectly matched geared motors from the Demag modular drive system. These units are designed to deliver strong performance, easy installation, and reliable long-term operation.

Key Features and Benefits:

High rigidity thanks to special structural stiffeners
High ground clearance due to the compact system design, even for complete drive units with gearboxes matched to the wheel load
Optional horizontal guide rollers and buffers available in various sizes and designs
Easy installation with housings prepared for direct connection to superstructures
Simple integration with superstructures thanks to compact housing design, precise position tolerances, and high dimensional accuracy

Easy Alignment and Maintenance

Laser alignment system for quick and precise wheel block alignment (DRS)
Fixed alignment system for DRS-M models
Simple wheel replacement without re-aligning the top connection, thanks to the asymmetrical housing design
Wheel blocks can also be adjusted and aligned laterally after installation in hollow sections or beams (for top, end, and pin connection types)

Low Maintenance and High Durability

Five-sided enclosed cast housing protects the travel wheels from mechanical damage
Large grooved ball bearings lubricated for life, with tapered roller bearings from size DRS 250
Travel wheels made from self-lubricating spheroidal-graphite cast iron (GGG 70) for low friction and high wear resistance
Integrated flange wear indicator for easy visual inspection
Optional colour-scale travel wheel wear indicator for DRS-M models

Design and Planning Support

Our web-based planning tool helps engineers and designers with project planning. It provides CAD files in multiple formats and other useful resources, making system design and project engineering faster and more efficient.

Options and accessories

To make our wheel systems more flexible and suitable for different applications, we also offer a range of optional accessories and special solutions, including:

Torque brackets for connecting offset and angular geared motors
Horizontal guide rollers for improved guidance and stability
Buffers available in different sizes and designs
Rail sweeping systems to keep rails clean and ensure smooth movement
Special solutions for high-temperature applications
Hardened travel wheels for increased durability and longer service life

These options help adapt the system to specific operating conditions and improve overall performance.

Dimensions (DRS with spheroidal-graphite cast iron travel wheel with two flanges)

Size	Max. load capacity [t]	Travel wheel dia. [mm]	Weight [kg]	a1 [mm]	b1 [mm]	b2 [mm]	c1 [mm]	div [mm]
DRS-M 112	2.75	112	7.3	190	47	80	96	131
DRS-M 125	5	125	9.9	220	60	80	98	147.5
DRS-M 160	7	160	18.3	275	65	89	110	187
DRS-M 200	10	200	35.7	340	65	101	130	238
DRS 250	16	250	62	385	75	110	150	281
DRS 315	22	315	117	470	90	130	180	349.5
DRS 400	30	400	201	580	110	155	210	440
DRS 500	40	500	352	700	110	170	240	566

Torque brackets for connection to offset and angular geared motors
Horizontal guide rollers
Buffers in various sizes and designs
Rail sweeping system
Solutions for high-temperature applications
Hardened travel wheels