Composite Metering Mobile Railcar Automatic Batching System —— Powder metallurgy ・ Specialized square for automotive parts Case 

Product Overview 

The composite‑metering mobile rail‑car automatic batching system is an intelligent batching solution developed by Wuxi Xielì Automation Equipment Co., Ltd. through more than two decades of expertise in powder batching, in collaboration with Jiangnan University. It is specifically tailored to the production conditions of powder‑metallurgy components for both new‑energy and conventional vehicles, addressing the industry’s demands for multi‑variety, small‑batch, high‑precision, and ultra‑clean batching. The system integrates advanced composite‑metering technology with mobile rail‑car‑based intelligent batching, fundamentally transforming traditional fixed‑station weighing and manual batching methods. It resolves longstanding industry challenges—such as cumbersome material changes, limited flexibility, and low efficiency in fixed systems, as well as poor accuracy, dust contamination, lack of data traceability, and significant human error in manual processes—thereby enabling powder‑metallurgy enterprises to upgrade their batching operations toward intelligence, standardization, cleanliness, and full traceability. This solution comprehensively supports both mass‑production and customized manufacturing needs in the automotive components sector. 

Core Product Features 

The system adopts a compact, double-layer modular structure, with the upper layer serving as a closed hopper section, equipped with… 14 Group large material bin +4 Total small material bins 18 An independent material bin allows for the segregated storage of various metal powders and trace additives. The lower level serves as the operational floor, equipped with two rail‑mounted batching carts that can operate independently and alternate tasks. Compared with conventional fixed single‑point batching systems, this setup enables rapid switching among multiple bins and continuous material intake and discharge, significantly reducing idle time. The equipment features three types of variable‑frequency feeding mechanisms—large screw, small screw, and vibratory—paired with a dual‑mode composite metering system, balancing high‑volume batching efficiency with precision for trace‑level dosing. It also incorporates a fully enclosed dust‑collection system, an industrial‑grade intelligent control system, and multiple safety safeguards, supporting one‑click recipe recall and end‑to‑end data traceability, making it well suited for long‑term, high‑load continuous production. 

Core Technical Metrics 

The equipment’s overall performance far exceeds industry‑standard benchmarks, with dynamic batching accuracy in the large material hopper. ±0.8 kg , the small material bin achieves a refined batching accuracy of up to ±0.05 kg , the overall comprehensive batching accuracy can reach ±0.1% ; Range coverage 5kg-1000kg Across the entire range, it meets diverse formulation requirements. For complex formulations, single-batch batching can be time-consuming. ≤11 Minutes. Can be stored 500 Production formulas for the above-mentioned group, annual equipment maintenance costs ≤ Total price 2% , the core components are stable and durable, with an extremely low failure rate. 

Core Technological Advantages (Compared with Fixed-Position Weighing and Dosing Systems) 

Compared with traditional fixed‑type weighing and batching systems, this equipment significantly enhances flexible production capacity. Fixed‑type systems typically operate at a single station, with cumbersome material‑change and cleaning procedures, making them ill‑suited for rapid, multi‑variety production cycles. In contrast, the mobile rail‑car system can flexibly switch between hoppers and alternate operations, adapting to different product formulations without requiring any changes to the plant layout—perfectly meeting automakers’ demands for customized, multi‑category component production. In terms of efficiency, the dual‑car cyclic operation mode eliminates the bottleneck of waiting inherent in single‑station fixed systems, resulting in a substantial increase in mass‑production throughput. As for precision control, the equipment employs dynamic flow compensation. + The static‑verification composite metering system, paired with dual‑scale calibration for both coarse and fine materials and a vibrating material‑clearing mechanism, eliminates the common issues of residue buildup and significant batching deviations found in fixed‑type equipment, thereby preventing material waste. Meanwhile, its mobile, fully enclosed dust‑collection design offers more comprehensive coverage than conventional single‑point systems, delivering superior cleanliness and meeting the stringent production standards of automotive components. In addition, the equipment supports non‑standard customization, making it compatible with both new and existing production lines and various plant layouts, with far greater versatility than fixed‑type, purpose‑built batching systems. 

Application scenarios 

The equipment is focused on the automotive powder metallurgy components sector, offering comprehensive solutions for the production of precision parts across all categories—both for new‑energy vehicles and conventional internal‑combustion‑engine cars. In the new‑energy segment, it supports powertrain components such as gears, synchronizers, and bearing housings, as well as lightweight chassis structural parts, automotive electronic sensor cores, conductive contacts, and other critical components. For conventional vehicles, it serves a wide range of powder‑metallurgy wear‑resistant bushings, oil‑impregnated bearings, alloy structural parts, and other precision components for engines, transmissions, and chassis systems. Additionally, the system is compatible with multi‑industry material‑mixing applications, including advanced materials and fine powders.