The YD-22 is used for ballast tamping during daily railway line maintenance. Its tamping pick vibrates the ballast to fluidize and compact the ballast under sleepers, restoring correct track geometry and support.
Model: D-4*4 (product name YD-22). Exciting frequency: 48 Hz. Exciting force: 3 kN. Pick plate form: flexible. Damping material: block rubber. Generator rated power: 5000 W. Overall weight: 105 kg/set. Dimensions: 675 × 150 × 255 mm.
This is an electric tamping machine that uses an onboard gasoline-driven generator (rated 5000 W) to supply electrical power to the tamping mechanism.
The tamping pick vibrates at the tip, producing an excitation force that temporarily fluidizes the ballast. While in this state the ballast settles and is compacted under the sleeper, improving support and track alignment.
The machine is designed for routine maintenance on standard railway lines and is suitable for common ballast types (e.g., crushed stone) and typical sleepers such as concrete and timber. For specialized or nonstandard track components, consult the supplier.
Regular maintenance includes engine/generator servicing (oil, filters, spark plug), inspection and replacement of tamping picks, checking and replacing rubber damping blocks as needed, lubrication of moving parts, tightening fasteners, and cleaning debris from the machine after use.
Operators should be trained, wear appropriate PPE (hearing protection, eye protection, gloves, safety boots), ensure the track is secured and isolated per railway rules, keep bystanders clear, shut down the engine before adjustments or maintenance, and minimize vibration exposure times.
Overall weight is 105 kg per set. Dimensions are 675 × 150 × 255 mm.
The machine generates substantial vibration at the tamping point and audible noise from the generator and tamping mechanism. Use hearing protection and follow recommended exposure limits. For exact noise or vibration levels, request manufacturer measurements or test data.
Common consumables include tamping picks, flexible pick plates, rubber damping blocks, engine filters, spark plugs, belts, and fasteners. Stock these items based on operating hours and site conditions.
Yes, operators should be trained in safe operation, routine maintenance, and track safety procedures. Training is typically available from the manufacturer or authorized dealer—confirm availability when purchasing.
At about 105 kg per set and compact dimensions (675 × 150 × 255 mm), the machine is relatively portable for on-track maintenance teams and can be transported in maintenance vehicles. Actual portability will depend on site logistics and whether multiple sets are needed.
Warranty terms and after-sales support vary by manufacturer and distributor. Contact the supplier or dealer for specific warranty duration, coverage details, spare parts availability, and service arrangements.
Contact the machine supplier or authorized dealer with your model and serial number. Provide the part names or numbers when available. The supplier can advise lead times, pricing, and service options for parts and technical support.
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