High Fatigue Strength Sand Vibrating Screen 270t/H - 400t/H Vibro Screen

In many crushing and screening operations, traditional vibrating screens become a bottleneck—not because they stop working, but because they work inefficiently, break down too often, and generate excessive dust and noise. The XY Vibrating Screen was created to break this pattern. As a mature product refined through years of on-site deployment in mines and aggregate plants, this machine delivers where others fall short.

Screening effectiveness begins with vibration quality. The XY Vibrating Screen generates its force through a dual mechanism: shaft eccentricity working in tandem with eccentric blocks. This combination produces a vibration intensity that conventional single-drive systems cannot match. What does that mean for the operator? Material stratifies quickly and moves steadily across the deck, fines pass through efficiently, and oversize discharges cleanly. The result is a screening process that achieves high tonnage without compromising separation accuracy.

A vibrating screen lives under constant stress. Without proper design, fatigue cracks appear, welds fail, and frames distort. The XY Vibrating Screen addresses this reality head-on. Its frame structure has been subjected to finite element dynamic analysis, with every member optimized to handle peak loads. The outcome is a machine that stands up to continuous operation without premature structural degradation.

One of the most significant engineering decisions involves the side plates. Many manufacturers rely on welded construction, which introduces residual stresses that eventually lead to cracking. The XY screen takes a different approach: HUCK rivets and hemmed edges. There is no welding on the side plates. This single choice eliminates weld-induced stress, prevents the gradual loosening that plagues riveted alternatives, and delivers a screen body with substantially higher fatigue resistance.

Precision in manufacturing directly impacts reliability in the field. To maintain exact concentricity across the bearing housing bores, the entire screen body undergoes machining on a gantry boring and milling machine. Side surfaces and bearing bores are cut in the same setup, guaranteeing perfect alignment for the exciter assembly.

The bearing housings themselves deserve attention. Standard materials wear under vibration, allowing the bearing outer race to spin and destroying the housing. XY Vibrating Screen solves this with bearing housings cast from a specialized alloy steel. The material resists wear, maintains its shape under load, and eliminates the frequent replacement cycles that plague conventional designs.

The choice of lubrication system separates short-lived screens from long-term performers. The XY Vibrating Screen uses thin oil lubrication instead of grease. Thin oil runs cooler, flushes away contaminants, creates less frictional resistance, and costs less to maintain. To keep that oil where it belongs, a labyrinth seal design prevents leaks even under high vibration. Together, these two features more than double the operational life of the bearings.

The screen deck sits at a 20° angle—steep enough to move large stones rapidly but moderate enough to give fines adequate dwell time for efficient separation. Motor power is used where it matters most. The tripod construction separates the screen body from the base frame, which keeps the motor securely positioned while simplifying transport and on-site setup. Rubber composite springs further improve the experience by lowering noise levels and smoothing out the machine's motion.

Q: What is the inclination angle of the screen deck, and why?
A: The screen deck is arranged at an inclination of 20°. This angle facilitates the efficient screening of large stones and ensures the motor power is used effectively, contributing to economical and efficient operation.

Q: What factors can affect the actual screening capacity?
A:The capacity data listed in the table can vary significantly depending on several factors. These include the physical properties of the stone material, feeding method, feed size, material moisture content, and clay moisture content. Actual capacity should be determined based on specific operating conditions.

Q: Can the capacity data in the table be used directly for project design?
A: The data provided in the table are for reference only and should not be used directly as design basis. For specific applications and accurate sizing, it is recommended to consult directly with Sichuan Xinyida Machinery Co., Ltd. for professional technical support.