Hong Kong’s construction industry demands high-quality sand and aggregates, driving the need for efficient crushing and screening solutions. Modern aggregate crushing equipment combines advanced technology with robust design to produce precise gradations for concrete, asphalt, and infrastructure projects.
1. Jaw Crusher: Primary crushing with high reduction ratios (e.g., 6:1). Models like JC110 (110kW motor, max feed size 650mm).
2. Cone Crusher: Secondary/tertiary crushing for cubical aggregates (e.g., HPC300 with 220kW power, output 120–400 t/h).
3. Vertical Shaft Impact (VSI) Crusher: Sand shaping (e.g., VSI1140 with 250kW motor, producing 60–520 t/h of manufactured sand).
4. Vibrating Screen: Multi-deck screens (e.g., 3YK3070 with 22kW power, screening capacity up to 800 t/h).
| Equipment | Key Parameter | Typical Output |
|---|---|---|
| Jaw Crusher | Feed size: ≤650mm | 50–1,500 t/h |
| Cone Crusher | Closed-side setting: 6–38mm | 120–400 t/h |
| VSI Crusher | Rotor speed: 1,500–2,800 rpm | 60–520 t/h |
Q: How to choose between cone crusher and impact crusher?
A: Cone crushers suit hard rocks (granite/basalt); impact crushers excel in softer materials (limestone) with higher shaping ability.
Q: What’s the moisture limit for screening?
A: Typically ≤5%. Wet screening or washing equipment is recommended for higher moisture content.
A local contractor deployed a 500 t/h granite crushing line featuring jaw crusher +
