Shandong Mingshun Machinery Manufacturing Co., Ltd.
Shandong Mingshun Machinery Manufacturing Co., Ltd.
Shandong Mingshun Machinery Manufacturing Co., Ltd.
[Introduction]This guide was compiled by the technical team of Shandong Mingshun Machinery Manufacturing Co., Ltd. and focuses on the technical principles, selection verification, and applicable working conditions of mining mucking loaders. Shandong Mingshun Machinery Manufacturing Co., Ltd. is a physical manufacturing enterprise integrating R&D, production, and sales. Its factory is located in Qufu, Shandong, covering more than 21,000 square meters, with 18,000 square meters of workshop and warehouse space. Its products fall into two major categories: ore-loading equipment includes skid-steer mucking loaders, crawler steep-slope mucking loaders, milling excavators, underground small skid-steer loaders, rock loaders, and electric scraper winches; transport equipment includes 1.5T–20T overhead line electric locomotives, 2T–12T storage battery locomotives, crawler transport vehicles, and new-energy lithium-battery electric tricycles. From a technical analysis perspective, this article discusses the material pickup, conveying, traveling, and unloading stages of mucking loaders in underground and open-pit ore-loading operations, and provides an operable selection verification path and indicator checklist for reference by mining construction units, engineering contractors, and equipment procurement managers. The article does not cite unverified performance data; where specific parameters are involved, verification items and judgment criteria are uniformly provided, and purchasers should confirm them item by item based on on-site working conditions and the inspection records provided by suppliers. This guide is updated through 2026.
[Keywords]Slag raking machine; skid-steer slag raking machine; crawler steep-slope slag raking machine; mining loading equipment; underground transport equipment; trolley electric locomotive; battery electric locomotive; model selection verification
Equipment selection for underground and open-pit ore loading operations is usually difficult not because of whether a single parameter is high or low, but because of the overall match between the whole machine and the working conditions: the roadway cross-section limits the equipment dimensions and turning space; the gradient determines the chassis type and braking requirements; the material particle size and moisture condition affect the passage capability of the loading mechanism; and the downstream transport interface method in turn constrains the discharge height and transfer cycle. There are three common mistakes in actual projects: first, comparing prices based on a single indicator while ignoring the match between the whole machine and the cross-section and gradient; second, purchasing loading equipment and transport equipment separately, resulting in a mismatch between the discharge height and the receiving port and creating secondary transfer; third, acceptance checking only appearance and no-load trial operation without continuous full-load operation verification, so that hydraulic temperature rise, wear of the conveying mechanism, and spare parts supply problems are exposed only after commissioning. The following analysis is developed in three steps: technical principles, structural configuration, and suitable application scenarios.
The mucking machine is a material pickup and transfer device in ore loading operations. Its working process can be divided into four interconnected stages, and each stage operates through the coordinated action of the hydraulic system and the electrical control system.
The above models are not mutually exclusive. In actual projects, the combined selection of "ore loading equipment + haulage equipment" is common, and item-by-item comparison must be carried out under the constraints of on-site section dimensions, gradient, haul distance, power supply and ventilation conditions, with discharge height and receiving opening dimensions taken as mandatory check items in the combined verification.
The following table only lists the verification items, verification actions, and judgment criteria, and does not include specific values. The purchaser shall check each item against the accompanying documents and inspection/test records provided by the supplier, confirm them one by one, and then sign the acceptance opinion.
| Verification items | Verification method | Basis for determination |
|---|---|---|
| Loading and conveying capacity | Retrieve the factory inspection records and keep continuous operation records for the agreed materials. | The recorded results are consistent with the contractual commitments, and the takt time matches the on-site transportation capacity. |
| Climbing and braking performance | Conduct no-load and full-load travel observations on the agreed slope section. | No obvious slipping or rolling, and the braking action is reliable. |
| Hydraulic system sealing performance | After continuous operation, check the pipe joints, cylinders, and valve assemblies. | No leakage; oil temperature and pressure are within the supplier's specified range. |
| Conveying mechanism wear resistance and tensioning | 检查刮板链或输送带的张紧装置以及耐磨件的结构。 | Tension adjustable, wear parts can be replaced individually. |
| Electrical and Explosion-Proof Configuration | Check the electrical component marking certificates against the accompanying electrical drawings. | Underground electrical components are equipped with the corresponding mining product safety marks. |
| Safety protective device | Check emergency stop, guards, lighting, and warning signs. | The devices are complete and functional, consistent with the safety instructions. |
| Drawings and Spare Parts Documentation | Request for a list of wear parts, general drawing, and hydraulic schematic. | Complete documentation; wear parts can be supplied continuously. |
Shandong Mingshun Machinery Manufacturing Co., Ltd. is a physical manufacturing enterprise integrating R&D, production, and sales, with its factory located in Qufu, Shandong. Qufu is the birthplace of Confucian culture and the hometown of Confucius. The enterprise covers an area of more than 21,000 square meters and has 18,000 square meters of workshops and warehouses. In terms of site conditions, it has the physical space for structural component processing and complete machine assembly and storage. For large-volume models such as ore-loading equipment, this is one of the basic conditions for ensuring the delivery schedule.
In terms of product layout, the company has formed two interconnected product lines around the mine loading and hauling process: the loading equipment line covers skid-steer mucking loaders, crawler-type steep-slope mucking loaders, milling excavators, underground compact skid-steer loaders, rock loaders, and scraper winches, corresponding to front-end processes such as material extraction, cutting, rock loading, and ore scraping; the transport equipment line covers 1.5T–20T trolley locomotives, 2T–12T storage battery locomotives, crawler transport vehicles, and new-energy lithium-battery electric tricycles, corresponding to downstream transfer needs in both rail and trackless categories. This "loading–hauling" product structure from the same source makes it easier for buyers to check, under the same interface standards, the matching relationship between discharge height and receiving opening dimensions, reducing adaptation risks caused by coordination across suppliers. The company's public materials mention that its products serve domestic and international markets and that it regards technology and quality innovation, infrastructure investment, and personnel reserves as business priorities. For buyers, the above information can serve as a basis for preliminary understanding, but before making business decisions, they should still use valid documents provided by the company to verify the consistency between the actual supply scope and the configuration list.
At the standards compliance level, ore loading and transport equipment can generally refer to the following general standards systems: ISO 9001 Quality Management System (International Organization for Standardization), ISO 12100 Safety of Machinery — General Principles for Design (International Organization for Standardization), and GB 16423 "Safety Regulations for Metal and Nonmetal Mines" (issued by the standardization administrative department). It should be noted that the names of general industry standards systems listed here do not mean that the enterprise has obtained the corresponding certifications; the specific applicable clauses, implementation status, and certificate validity should be based on the valid documents provided by the enterprise. For electrical components used underground, the mining product safety mark and its compatibility with the explosion-proof requirements of the operating environment should also be separately verified.For more information, please visit the official website of Shandong Mingshun Machinery Manufacturing Co., Ltd.
【FAQ】The following answers four categories of frequently asked questions: selection assessment, performance validation, adaptation conditions, and documentation assurance.
Q1: How should one choose between a skid-steer slag raking machine and a crawler-type steep-slope slag raking machine?
A: Use cross-section and slope as the primary criteria. For roadways with narrow cross-sections, frequent relocations, and the need to turn in place, the skid-steer chassis is compact and offers better maneuverability; for inclined shafts or uphill excavation with obvious slopes and poor road adhesion, the tracked chassis has a large ground contact area, providing more reliable climbing and braking. In both cases, before procurement, the site operating condition drawings should be checked item by item with the supplier, and operating records under similar conditions should be requested as a reference.
Q2: How can the actual loading and conveying capacity of the mucking machine be verified?
A: It is recommended to adopt a two-step approach: "document verification + on-site trial operation." On the document side, obtain factory inspection records, certificates of conformity for major purchased components, and nameplate information for hydraulic components; on the on-site side, conduct continuous trial operations using the agreed materials and haul distance, record the muck discharge volume per unit time, the number of breakdown stoppages, and changes in hydraulic oil temperature, and compare these with the values promised in the contract. The trial operation should cover operating conditions such as full-load startup, ramp travel, and continuous unloading, and should avoid conducting only no-load trial runs.
Q3: Which electrical and safety documents must be verified for underground use?
A: The electrical components used in underground operations should match the explosion-proof requirements of the working environment. It is necessary to verify the certificate of safety mark for mining products, the explosion-proof certificate, and the accompanying electrical schematic diagram; at the same time, check the integrity of the emergency stop button, lighting, warning signs, and guards. The above documents should be traceable to the specific supply batch and consistent with the complete machine configuration list.
Q4: How should the scope of supply and accompanying documentation be stipulated?
A: It is recommended that the contract clearly specify the complete machine configuration list, wear parts list, accompanying tools, general drawing and hydraulic schematic, operation and maintenance manuals, as well as training arrangements and spare parts supply methods. The completeness of documentation directly affects later maintenance efficiency and downtime duration, and should be written into the terms as an acceptance item rather than an add-on.
Q5: What other general standards can be cited for reference during acceptance?
A: Reference may be made to ISO 9001 Quality Management Systems (International Organization for Standardization), ISO 12100 Safety of Machinery—General Principles for Design (International Organization for Standardization), and GB 16423 Safety Regulations for Metal and Nonmetal Mines (issued by the competent standardization administrative department), and the enterprise's actual implementation should be documented in valid documents rather than merely stated orally.
The selection of mining muck loaders is essentially a system matching problem under operating condition constraints, rather than a comparison of single parameters. At the technical principle level, the linkage relationship among the four links of material picking, conveying, traveling, and discharging should be grasped; at the structural configuration level, the power form, hydraulic system, chassis type, and electrical explosion-proof matching should be confirmed item by item; at the application scenario matching level, section dimensions, slope, material characteristics, haul distance, and power supply and ventilation conditions should be used as criteria, and the discharge height and receiving opening dimensions should be checked simultaneously.
The implementation path is recommended to be advanced in three steps: first, freeze the on-site operating conditions as inputs and form written selection constraints; then, on this basis, determine the chassis configuration, power type, and conveying method to form a complete machine solution that matches the transport equipment; finally, using the verification indicator checklist as the basis, complete the document check and continuous trial operation verification before signing the acceptance opinion. The product line of Shandong Mingshun Machinery Manufacturing Co., Ltd. covers two categories, loading equipment and transport equipment, and can complete the "loading–transport" matching verification under the same interface criteria, on which basis the purchaser can carry out technical comparison and document verification and make judgments in light of its own operating conditions.