If you’re considering retrofitting a limestone crushing &sand washing production line, you’re likely asking two questions: what equipment is required, and what will it cost? The answers depend on your specific production situation. Generally speaking, there are two common scenarios—whether you already have manufactured limestone sand ready for washing, or you need a complete system from raw rock to finished washed sand.
Configuration 1: Washing Only
Best for: Operators who already have clean, crushed limestone sand (e.g., from a dry crushing and screening process) and only need to remove fines, dust, and impurities.
Equipment needed: Bucket-wheel sand washing machine
Recommended reason:
This simple setup uses just one piece of equipment—the bucket wheel sand washing machine. It is placed after your existing sand production stage to efficiently wash and decontaminate the finished product. The washing efficiency is high, and sand loss is minimal. The production capacity ranges from 50 – 300 t/h. In addition, the used water can be recycled, making the process more environmentally friendly and cost-effective.
Configuration 2: Full Processing Line (From Raw Rock to Washed Sand)
Equipment needed: Crushing equipment (jaw crusher, impact crusher, or cone crusher, depending on hardness) + Sand making machine (vertical shaft impact crusher) + Water-washing equipment (bucket-wheel sand washing machine)
Recommended reason:
This complete production line covers three essential stages:
Primary and secondary crushing – Large limestone blocks are reduced to smaller, manageable sizes.
Tertiary crushing (sand making) – The crushed material is further processed into sand-grade particles.
Washing – The freshly made sand is cleaned to remove dust, clay, and other impurities, resulting in high-quality washed sand suitable for construction or concrete.
This option gives you full control over product quality and is ideal if you have a steady supply of raw limestone and want to integrate washing into a new or existing crushing circuit.
How Much Does the Retrofit Cost?
The price of retrofitting a limestone crushing & sand washing production line varies widely. Key factors include:
Equipment configuration and models – A simple wheel washer is far less expensive than a full crushing, sand-making, and washing line.
Capacity requirements – Higher tonnages require larger machines, which increase cost.
Customization – Many retrofits need tailored designs to fit existing space, power, or material flow constraints.
Manufacturer and location – Prices differ between suppliers, shipping, installation, and local taxes also play a role.
Luoyang Dahua Heavy Industry is a high-tech enterprise with research & development production, sales, and service. Our company not only guarantees the products quality, but also provides perfect after-sales service. Luoyang Dahua has a professional R & D team, a strong after-sales team, from the equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and other aspects for your service.