Electric Rope Shovel
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This page explains how Crowd System is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A mechanical system in electric rope shovels that controls the horizontal movement of the dipper handle and dipper assembly.
Technical details and manufacturing context for Crowd System
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Load Capacity | 45–90 t | Maximum dipper payload; exceeds this risks structural failure |
| Crowd Force | 300–600 kN | Force applied to dipper handle; insufficient for hard digging |
| Crowd Speed | 0.5–1.5 m/s | Horizontal speed of dipper; affects cycle time |
| Crowd Stroke | 6–12 m | Maximum horizontal travel of dipper handle |
| Operating Pressure | 20–35 MPa | Hydraulic system pressure; below 20 MPa insufficient force |
| Operating Temperature | -20–50 °C | Ambient temperature range; outside may affect seals and hydraulics |
| Ingress Protection | IP54–IP65 | Protection against dust and water; higher for outdoor useIEC 60529 |
| Material Grade | Q345B–Q460C | High-strength steel for structural componentsGB/T 1591 |
| Weight | 8–20 t | Total weight of crowd system; affects shovel balance |
| Positioning Accuracy | ±10 mm | Accuracy of dipper handle positioning; critical for digging efficiency |
| Hydraulic Flow Rate | 200–400 L/min | Flow rate to crowd cylinders; affects speed and force |
| Cylinder Bore Diameter | 200–320 mm | Diameter of crowd cylinders; determines force capability |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Crowd System.
This component is essential for the following industrial systems and equipment:
| pressure: | Max 10 MPa hydraulic pressure |
| other spec: | Slurry concentration up to 60% solids by weight, Flow rate: 50-200 L/min hydraulic fluid |
| temperature: | -20°C to +80°C |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
Manufacturer profiles associated with Crowd System.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The crowd system controls the horizontal movement of the dipper handle and dipper assembly, enabling precise positioning for digging, loading, and dumping operations.
Common materials include alloy steel and cast steel, which provide strength and durability under high loads.
Key parameters include rated load capacity, crowd force, crowd speed, crowd stroke, operating pressure, operating temperature, ingress protection, material grade, weight, positioning accuracy, hydraulic flow rate, and cylinder bore diameter. Always verify with the manufacturer for the specific application.
Unusual noises, reduced crowd force or speed, hydraulic leaks, and visible wear on gears, racks, or chains are indicators that maintenance is needed. Regular inspections are essential.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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