Guangxi Limestone Deep-Processing Project: HSM 1212 Hydraulic Double-Roll Crusher Delivers Premium 3mm Finished Sand
⚙️ Process & Core Equipment Setup
The complete unit is equipped with a premium power combination: two 90 kW Siemens motors paired with two Guomao gear reducers. This setup provides strong, balanced power delivery with high load capacity, guaranteeing stable, long-term, full-load operations tailored for the continuous fine crushing of limestone pea gravel. Integrated with a hydraulic adjustment system, the gap between rollers can be finely calibrated to consistently produce 3 mm finished material.
📋 On-Site Processing Specs
- Feed Material: Limestone pea gravel
- Target Discharge Size: 3 mm

Figure 1: HSM 1212 hydraulic double-roll crusher operating smoothly at the Guangxi plant
🌟 Core Technical Advantages & Finished Material Quality
Utilizing the principle of material-bed compression crushing, the crusher effectively reduces over-grinding and excessive fines generation. The resulting product features uniform particle size, cubic shape, and a low percentage of flaky or elongated particles. The premium sand produced is widely applicable in building materials, infrastructure construction, dry-mix mortar, and other high-value sectors.
- Adjustable Roller Gap: The 1212 hydraulic double-roll model features precise gap control for stable output of 3 mm material.
- Premium Drive Package: Siemens motors + Guomao gearboxes ensure durable, solid, and reliable driving power.
- Compression Crushing: Minimizes fine powder generation and yields excellent cubical particle shape.
- Hydraulic Protection: Built-in hydraulic overload protection ensures smooth operation and significantly lowers failure rates.

Figure 2: High-quality, uniform 3mm limestone aggregate produced on site
🎯 On-Site Solution Summary
The HSM hydraulic double-roll crusher is highly versatile, adapted for fine crushing and sand-making across a wide range of feed materials including limestone, river pebbles, pea gravel, and more. Discharge specifications can be custom-tailored to suit specific client production goals.
The successful commissioning of this Guangxi production line once again proves the outstanding advantages of hydraulic double-roll crushers in the field of fine rock crushing, standing out as a top-choice machine for aggregate processing plants!












