In the rapidly developing modern construction industry, the demand for sand and gravel aggregates as the cornerstone of infrastructure construction is increasing day by day. Mechanized sand, as an effective supplement to natural sand resources, is highly favored due to its controllable quality and wide range of sources. The choice of mechanism sand production line is directly related to multiple aspects such as production efficiency, cost control, and environmental adaptability. This article will delve into the advantages and disadvantages of fixed and mobile mechanism sand production lines, providing comprehensive reference for investors and decision-makers.

 

1、Overview

 

Fixed machine-made sand production line

The fixed machine-made sand production line is relatively scattered, consisting of feeder, primary crushing equipment, secondary crushing equipment, screening equipment, sand making equipment, sand washing equipment, etc., connected together by conveyor to form a gravel crushing production line or sand making production line. Therefore, the fixed production line requires a larger site, and infrastructure and piling are required to fix these equipment to the corresponding positions according to the designed production line. This is why the fixed production line is slow to be put into production. The installation of the equipment alone takes about a month; in addition, it occupies a large area and is generally installed outdoors. It needs to be provided with a power supply device to ensure that it can operate normally; finally, it requires relatively more manpower. After all, the equipment is relatively scattered, and more manpower is required.

Recommended equipment: ZSW vibrating feeder, JC jaw crusher (coarse crushing equipment), GPY single-cylinder hydraulic cone crusher (medium and fine crushing equipment), PLS vertical impact crusher (sand making and shaping equipment), YKR circular vibrating screen.

 

Mobile machine-made sand production line

To put it simply, a mobile machine-made sand production line is a production line that can be moved. It has two ways of moving. One is a tire-type design that can be hung on the front of the vehicle and can move. The other is a crawler-type design that can turn on the spot and be remotely controlled. The mobile machine-made sand production line integrates crushing, screening, transportation and feeding. The whole machine is flexible and simple to operate, with a high degree of automation, intelligent production, and reduced labor costs. The mobile production line is most suitable for the crushing of construction waste. The stacking of construction waste is relatively scattered, and the mobile production line can be driven directly to the operation site for crushing production.

2、Selection criteria

From the perspective of applicable scenarios, fixed production lines are more suitable for large-scale engineering projects with stable raw material sources, large production volumes, and long production cycles. For example, national infrastructure construction projects such as highways, railways, bridges, etc. have a huge demand for sand and gravel materials and strict quality requirements. Fixed production lines can meet these demands. Relatively speaking, mobile production lines are more suitable for small or medium-sized engineering projects, or areas with uneven distribution of raw materials and remote geographical locations. Urban renovation projects, small residential area construction, etc. can all benefit from mobile production lines.

From a cost-benefit perspective, although fixed production lines require significant initial investment, their long-term production costs are relatively low and suitable for large-scale production. According to statistics, the operating cost of a fixed production line is about 60% -70% of that of a mobile one. Although mobile production lines have cost advantages in initial establishment, they may not be economical in the long run due to high transportation and equipment maintenance costs.

 

Should we choose a fixed or mobile production line for machine-made sand?

 

In a practical case, a large state-owned enterprise chose a fixed machine-made sand production line to support its long-term infrastructure projects. By centralizing the procurement of efficient equipment and optimizing production processes, this project not only ensures production volume and product quality, but also effectively reduces long-term production costs. On the other hand, a company focused on urban renovation projects has adopted mobile production lines. This enables them to quickly respond to changes in project locations, although the production cost of individual projects is high, overall achieving optimal resource allocation and cost savings.