800 TPH River Pebble Sand Making Line in Sichuan
Liming Heavy Industry stood out from over 90 bidding enterprises to successfully assist Chengdu Construction Engineering Group in putting their 750-800 TPH river pebble wet-process sand-making project into operation in Sichuan. Adopting a tailor-made wet process and equipped with core machinery like the HST single-cylinder hydraulic cone crusher and VSI5X vertical shaft impact crusher, the project perfectly overcomes the challenges of crushing high-hardness materials.
Project Overview
Recently, the 750-800 TPH wet-process river pebble sand-making production line, contracted by Chengdu Construction Engineering Group and equipped with core machinery from Liming Heavy Industry, was officially put into operation. Since its inception, the project has attracted significant industry attention, drawing over 90 enterprises to compete during the public bidding phase. Through multiple rounds of on-site inspections, technical scheme comparisons, and comprehensive equipment evaluations, Liming Heavy Industry stood out in the fierce competition by virtue of its exceptional product strength and systematic overall solutions, successfully winning the customer's deep trust.

Process Design: Tailor-Made Wet-Process Premium Sand Making
The raw material for this project is typical river pebble found in the Sichuan region, characterized by its high hardness and strong abrasiveness. This sets extremely stringent requirements on the wear resistance, stability, and crushing efficiency of the equipment.
Addressing these specific material characteristics, Liming Heavy Industry tailor-made a "wet-process premium sand-making" technical route. This solution effectively controls dust emissions during the crushing of hard materials while ensuring the cleanliness, particle shape, and gradation of the finished aggregate perfectly meet the standards. The overall layout of the production line is compact and highly logical. After commissioning, the output has stabilized at 750-800 tons per hour, steadily producing four types of premium aggregates: 0-5mm, 5-10mm, 10-20mm, and 20-31.5mm. This strongly guarantees the high-quality sand and gravel demand for major local and regional infrastructure projects, including high-speed railways, highways, and housing construction.
Core Equipment: Efficient Synergy of Flagship Products
The entire production line adopts Liming Heavy Industry's mature and reliable flagship product portfolio. Each stage is closely linked, achieving a dual leap in both capacity and quality:
| Equipment Name | Model & Quantity | Core Advantages & Functions |
|---|---|---|
| Vibrating Feeder | SP220 (25 units) | Continuous and even feeding, ensuring stable front-end operation. |
| Single-Cylinder Hydraulic Cone Crusher | HST315S (1 unit) | Acts as the primary coarse crusher with powerful crushing force. |
| Single-Cylinder Hydraulic Cone Crusher | HST315H (2 units) | Handles medium and fine crushing, effectively reducing wear-part consumption. |
| Vertical Shaft Impact (VSI) Crusher | VSI5X1150 (2 units) | Dedicated to sand making and shaping, yielding excellent particle shape and gradation. |
| Vibrating Screen | S5X3075 (5 units) | Accurate classification, high screening efficiency, and excellent capacity matching. |
The entire set of equipment works in seamless synergy, operating smoothly and efficiently. Since its launch, the machinery has consistently maintained peak performance, earning high praise from the customer's on-site team.

Customer Recognition: Chosen from 90 Competitors
As a leading construction enterprise in Southwest China, Chengdu Construction Engineering Group has always maintained exceedingly strict standards for supplier screening and assessment. Coming out on top among more than 90 bidding enterprises is not only the strongest endorsement of Liming Heavy Industry's robust hardware capabilities but also a high recognition of its brand value by the customer.
Throughout the entire project lifecycle, Liming Heavy Industry provided not only highly cost-effective and reliable complete sets of equipment but also a full-process "one-stop" service covering process design, installation and commissioning, technical training, and after-sales support. This truly exemplifies the principle of winning trust through professionalism and building reputation through service.
The successful implementation of this project stands as another benchmark masterpiece for Liming Heavy Industry in the aggregates sector of Southwest China, and serves as a testament to the company's deep-rooted strength in the crushing and screening equipment industry. Moving forward, Liming Heavy Industry will continue to be driven by technological innovation, adhering to the philosophy that "the customer's success is our success," and persistently providing smarter, more reliable comprehensive crushing and screening solutions for the global aggregates industry.
