Internal Combustion Railway Ballast Bed Tamping Machine ND-4

We are committed to exploring new service models, becoming a new representative of the Internal Combustion Wrench Rail Organizer, Double Headed Railway Bolt Wrench, Internal Combustion Railway Use Bolt Wrench industry and forming our own unique services. We strictly implement production and sale in accordance with international standards, and improve the management level of the enterprise, which laid a solid foundation for the enterprise to move forward in the direction of standardization and scale. After years of continuous progress and improvement, our company has advanced process equipment, strong technical force, complete detection means and timely supply. On the basis of actively participating in international competition, we constantly grasp the pulse of market development, seek economic strategic alliances, and develop and progress together with global partners.

1. Scope of Application

YD-22 Hydraulic rail tamping machine is a new generation product developed by our factory, which is based on the experience of domestic and foreign customers in the use of tamping machines and also adopts new materials and technologies. Its basic structure and principle still retain the advantages of the traditional tamping machine, that is, double guide column frame, single cylinder lifting mode. At the same time, by increasing the depth of the pickaxe and increasing the travel limit device of the guide column, it can be used in tamping operation on the type Ⅱ and type Ⅲ concrete sleeper lines in China. It can also be used for tamping on ballasted lines on various kinds of concrete sleepers and steel sleeper lines abroad. The machine is set for the standard gauge of 1435 mm and one side off track. Its main technical performance is better than the traditional one. It’s suitable to tamp on the track with various rail types and concrete sleepers, it’s also suitable to tamp the ballast on the newly-relaying track bed. This machine has the features of high quality performance, reasonable structure, safe and reliable operating capability and high working efficiency, which can satisfy the requirement of ballast tamping operation. 

2. Main Technical Parameters

1. Engine: Diesel Engine SF190

         Power: 7kW

         R.P.M: 2300 r / min

2. Hydraulic system working pressure: 5 ~ 6MPa

3. Vibrating frequency: 66.7Hz

4. Vibrating force: 22kN

5. Max insert force: 16kN

6. Max clamping force:  6.5kN × 2

7. Inserting depth: 110mm ± 10mm (underneath the sleeper)

8. Production efficiency ≥ 270 pieces / (group • hour)

9. Machine weight:

Water-cooled diesel engine: 439kg

10. Overall size:

Water-cooled diesel engine: 1300 × 750 × 1600mm

11. Operation mode:

   a. Two sets of machine as one operating group, to off-track unilaterally, suitable for double track or wide area of single track.

   b. Two sets of machine as one operating group, to off-track bilaterally, suitable for narrow area of single track.

3. Working Principle and Basic Structure 

Working Principle:

The tamping machine is driven by diesel engine, oil pump and vibration shaft are driven by triangle belt. With the vibration shaft rotating at high speed to drive the eccentric body, because of the centrifugal force, the exciting force is produced, and the high-pressure oil output from the oil pump enters the lifting cylinder through the reversing valve and compacts the oil cylinder, thus driving the various executive parts, realizing the clamping and dropping of the rail, Tamping operation functions such as clamping and consolidation.

2. Main Technical Parameters

1. Engine: Diesel Engine SF190

         Power: 7kW

         R.P.M: 2300 r / min

2. Hydraulic system working pressure: 5 ~ 6MPa

3. Vibrating frequency: 66.7Hz

4. Vibrating force: 22kN

5. Max insert force: 16kN

6. Max clamping force:  6.5kN × 2

7. Inserting depth: 110mm ± 10mm (underneath the sleeper)

8. Production efficiency ≥ 270 pieces / (group • hour)

9. Machine weight:

Water-cooled diesel engine: 439kg

10. Overall size:

Water-cooled diesel engine: 1300 × 750 × 1600mm

11. Operation mode:

   a. Two sets of machine as one operating group, to off-track unilaterally, suitable for double track or wide area of single track.

   b. Two sets of machine as one operating group, to off-track bilaterally, suitable for narrow area of single track.

In the production process of Internal Combustion Railway Ballast Bed Tamping Machine ND-4, strict process control and quality inspection system are implemented. We will seek knowledge and listen to the valuable opinions of users, continue to develop new products, and achieve product diversification to meet the needs of all walks of life. The principle of our company is that win-win means success and peace creates the foundation. All staff will do their best ability in order to offer every customer of better products and satisfied service. Welcome for any inquiry to us.

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