Used Circular Vibrating Screen

Product Description

The hydraulic opening crusher is a type of mining machinery that combines efficient crushing and intelligent maintenance. It is specifically designed for artificial sand production, stone shaping, and mineral crushing. It integrates advanced hydraulic opening technology, the “stone against stone” self-breaking crushing principle, and wear-resistant material technology. It can quickly process high-hardness materials such as river pebbles, granite, basalt, and quartzite, and is widely used in mining, construction, roads, hydropower, and other fields.

Why Choose a Circular Vibrating Screen?

• Higher Efficiency: Circular vibration ensures even material distribution, with screening efficiency over 95%. Supports 2-5 layers for 1-6 grades of separation (0.1-150mm).
• Durable & Stable: Reinforced screen box and sealed vibrator resist impact from hard materials (e.g., granite), lasting 30% longer than standard screens.
• Cost-Saving: 15-20% lower energy use. Quick-change screens (10 mins) reduce downtime, cutting long-term costs.
• Versatile: Handles dry/medium-moisture materials (ore, sand, coal) across mining, construction, recycling. Fits 10-800 t/h production lines.
• Easy to Operate: Adjustable frequency, customizable screens (manganese steel, stainless), and simple maintenance—no complex training needed.

Key Technical Features

• Block Eccentric Exciter: Uses external eccentric blocks to adjust the vibration amplitude. It is more reliable and easier to maintain than internal shaft-eccentric types.
• Cold-Riveted Connection: The side plates and cross beams are connected by high-strength rivets (Huck Bolts), NOT welding. This eliminates internal stress and prevents the frame from cracking under years of vibration.
• High-Strength Springs: Heavy-duty steel springs absorb the vibration, minimizing the dynamic load transferred to the concrete foundation.
• Large Clearance Bearings: Uses specialized vibration-resistant bearings (like SKF/FAG/ZWZ) with larger internal clearance to handle the heat and speed.

Applications

• Aggregate Grading: Separating road base, concrete stone, and asphalt chips.
• Scalping: Removing dirt/fines before the primary crusher (if used as a scalper).
• Coal Preparation: Sizing raw coal.

Quality Assurance & Refurbishment Process Refurbishing a screen is all about the Exciter and Frame.

• Exciter Rebuild: We disassemble the vibration unit, clean the oil bath, and replace the bearings with new Vibration-Class bearings. We check the temperature after running for 4 hours.
• Frame Inspection: We check the side plates for any stress cracks. If found, we do not weld them (which fails again); we replace the plate or use patch plates with rivets.
• Spring Check: We ensure all support springs are of equal height to ensure the screen runs level.

Common Customer Questions (FAQ)

• Q: Does it come with the screen mesh?
  • A: Yes, we usually install brand new steel wire mesh tailored to your requested sizes (e.g., 20mm, 40mm) before shipping.
• Q: How many decks does it have?
  • A: Common configurations are 2-Deck (3 products), 3-Deck (4 products), or 4-Deck (5 products). We stock all types.
• Q: Can I adjust the vibration strength?
  • A: Yes, by adding or removing counterweights on the eccentric blocks, you can adjust the amplitude to suit different materials.
• Q: Is it suitable for wet screening?
  • A: Yes, simple water spray nozzles can be added above the decks for washing stone while screening.

Product Parameters

*Technical data is for reference only.