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Crusher Soundproof Enclosure

Crusher Soundproof Enclosure

破碎机隔音罩 中文页

Manufacturer: HANWEI Noise Barriers Technical contact: Li Gong, Senior Engineer Updated: 2026-10-29 Sound Barriers, Built to Block Noise.

The Crusher Soundproof Enclosure is a custom-built integral noise barrier shell for impact-noise-prone crushing equipment. The heavy-duty steel modular enclosure fully wraps the crusher main unit, feed inlet, and drive components. The outer panel is electrostatically powder-coated galvanized steel, with a perforated inner liner backed by an 80–100 mm centrifugal glass wool acoustic layer (density 48 kg/m³, NRC≥0.85). Designed for continuous feeding and high-intensity impact noise, the enclosure incorporates a silencer-equipped feed channel, ventilated acoustic louvers, and hinged service access panels. Measured noise reduction at identical pre- and post-installation points reaches 20–30 dB(A). Widely used for compliance with plant boundary noise standards in aggregate, mining, and recycling industries. Quotations are project-specific—provide equipment model, overall dimensions, and on-site layout for a detailed proposal.

Technical Data

Specifications

Values below are the standard configuration. Dimensions, core thickness and coating can be adjusted to your project specification.

Applicable models Suitable for jaw/hammer/impact crushers and various grinders; capacities from 10 to 500 t/h, customizable
Enclosure structure Modular assembled heavy-duty steel frame, on-site assembly, reserved feed and maintenance passages
Outer panel Galvanized steel sheet 2.0~3.0mm, electrostatic powder coating (thickened treatment available for high dust conditions)
Sound-absorbing core 80~100mm centrifugal glass wool, density 48kg/m³, NRC≥0.85
Facing panel Perforated galvanized steel face panel, perforation rate determined by acoustic calculation
Weighted sound reduction index Rw≥35dB (heavy-duty enclosure reinforced configuration)
Overall noise reduction Measured at same point before and after installation: 20~30dB(A) noise reduction
Feed passage Feed port sealed passage with sound-absorbing liner, flexible sealing at belt conveyor penetration
Ventilation & cooling Ventilation silencer louvers installed at motor and bearing areas, area calculated by temperature rise
Maintenance access Side-accessible hinged maintenance openings, partial panel removal for hammer and liner replacement
Inspection window Tempered glass inspection window at feed end, enables blockage check without stopping the machine
Service life Dual protection: galvanizing + powder coating, service life over 15 years in high dust conditions
Product Overview

About This Product

Why Crusher Noise Is Difficult to Control

Crushers are among the loudest equipment in aggregate production lines, mining operations, and recycling facilities. Impact noise from hammers or jaw plates radiates directly through the housing, combined with high-power motor and bearing noise, typically reaching 95–110 dB(A) at 1 meter. These machines handle large volumes with continuous feeding, making shutdown-based treatment impractical. Impact noise contains strong low-frequency components that travel long distances—simple barrier walls or ordinary partitions cannot keep noise below site boundary limits. Our solution is a fully enclosed soundproof hood: a steel shell blocks direct sound, thick sound-absorbing lining eliminates reverberation inside, and feed openings, ventilation, and maintenance access all route through silencers—while the machine continues feeding and discharging normally, sound stays contained.

Hood Structure: Heavy-Duty Frame Built for Dust-Intensive Environments

Crushing operations generate heavy dust and intense impact loads. The hood uses a reinforced steel frame with modular steel panel assembly: outer skin of 2.0–3.0 mm galvanized steel with electrostatic powder coating, inner perforated steel face plate filled with 80–100 mm centrifugal glass wool. The frame is engineered to local wind and dust load requirements. Panels connect with bolts and sealed gaskets. The modular design delivers real value on crushing lines: locations requiring frequent hammer replacement or screen maintenance are fitted with hinged access doors that open for service and close for operation, without compromising overall noise attenuation.

Feed Channel: The Lifeline of Continuous Production

Crushers rely on continuous belt feeding—the feed opening is the most critical point that cannot be simply sealed shut. We design the feed port as a silencer-lined sealed passage: flexible sealing curtains at the belt penetration allow material flow while blocking sound escape; the channel interior is lined with sound-absorbing material, absorbing the majority of impact noise before it propagates out. The discharge end is treated identically, with chute interface sealing, ensuring the entire feed system maintains its process configuration with no modifications required.

Ventilation, Heat Dissipation & Electrical Sealing

Crusher motors are high-power and run continuously. Ventilation silencer louvers are provided at motor and bearing areas, sized according to heat dissipation and allowable temperature rise inside the hood. In high-dust environments, ventilation paths are designed to resist dust ingress and prevent sound-absorbing layers from caking and losing performance. Electrical cable penetrations use silencer sleeves with sealed joints, eliminating acoustic short-circuits where sound escapes through gaps.

Quotation & Delivery

Pricing is based on hood projected area at ¥600–1,500/m², including feed silencer , maintenance hatches, and observation windows. Submit your crusher model, external dimensions, and a site layout sketch (hand-drawn with measurements accepted), and we provide a full proposal and detailed quotation the same day. Standard sizes have a production lead time of 10–20 days; oversized units are palletized and shipped via freight, with on-site assembly and optional installation guidance. Every shipment includes material certificates and factory test reports, with photos archived before loading.

FAQ

Crusher Soundproof Enclosure — Frequently Asked Questions

The questions buyers ask most often about this product before placing an order.

Crusher noise is extremely loud—how much can the enclosure reduce it?

Depending on the model and enclosure configuration, measured综合 noise reduction at identical points ranges from 20 to 30 dB(A). Operator positions near the machine typically drop from over 95 dB(A) to 75–80 dB(A). Achieving compliance at the plant boundary is standard when combined with other measures; noise prediction is provided during the proposal stage.

Will the enclosure block the conveyor belt feed?

No. The feed inlet is designed as a sealed通道 with acoustic lining, and a flexible seal curtain at the conveyor penetration point ensures smooth material flow while containing noise. The discharge end is treated similarly—the entire feed/discharge process remains unchanged.

How do I replace hammers or service the screen?

The enclosure预留s hinged service access panels at locations corresponding to hammer replacement and screen maintenance. Panels are opened locally during service and resealed afterward, without compromising overall acoustic performance. Access panel positions are confirmed item by item during the proposal stage per your maintenance procedures.

With so much dust, won't the acoustic material degrade?

The acoustic layer is sealed behind the perforated panel liner, preventing dust ingress. Ventilation paths are designed for高-dust conditions, and dust collection connections can be added if required. Long-term field feedback from mining customers confirms structural integrity remains excellent.

How is pricing calculated?

Pricing is based on enclosure展开 area at 600–1500 CNY/m², including the feed silencer通道, service access panels, and observation window. Foundation work and dust collection connections are quoted separately based on site conditions. A detailed quotation is provided on the same day upon receipt of equipment dimensions.

What is the delivery lead time?

Standard specifications: 10–20 days. Larger models or projects requiring on-site survey will have extended timelines. Components are packed and shipped via logistics; site assembly is performed on location, and our technicians can be arranged for installation guidance.

Multiple equipment on my aggregate line exceed limits—can you treat them together?

Yes. Crushers, vibrating screens, and ball mills often operate on the same production line. We can provide整线治理 services—starting with measurement of each noise source contribution, then developing a prioritized and combined treatment plan to ensure plant boundary compliance across the board.

Next Step

Need Crusher Soundproof Enclosure for Your Project?

Send your drawings, noise data or site photos. Our engineers return an itemized proposal in English — standard configurations within 24 hours, engineered projects in 2 to 3 working days.

Ordering information

  • MOQ: one mixed container acceptable for trial orders
  • Production: 7–15 days for standard configurations
  • Payment: T/T 30% deposit, balance against B/L copy; L/C at sight accepted
  • Shipping: FOB Tianjin or CIF to your destination port
  • Documentation: material certificates and acoustic test reports included
Why Us

8 Reasons to Choose HANWEI

13-year acoustic product source factory · Manufactured, tested and shipped by one factory

01
🏭

Direct Factory Supply

Own factory with 5,000㎡ daily capacity — galvanized steel, aluminum and acoustic panels all produced in-house. No middlemen, no markups.

02
📐

Acoustic Support Before Production

Send your drawings or noise data and our engineers return a barrier cross-section, an insertion-loss estimate and a bill of materials in English — before any steel is cut.

03
🎯

One Factory, Full Production Chain

Slitting, punching, roll forming, galvanizing, powder coating, panel assembly and mounting hardware all under one roof, so posts and panels always match and one order carries one quality standard.

04
🌏

Export Delivery Record

Products delivered across China and shipped to Southeast Asia, the Middle East and Africa — highway and railway barriers, community screens, acoustic panels, silencers and louvres.

05
🔬

Documented Acoustic Performance

Composite barrier noise reduction of 10–25dB(A) and NRC ≥ 0.85 on 80 mm absorptive cores. Laboratory test reports ship with the delivery so you can verify the figures yourself.

06
🏅

Complete Documentation

Material certificates, coating thickness records and acoustic test reports are issued for every production batch, ready for tender submission and site acceptance.

07
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Engineered for Site Conditions

Post and foundation design is calculated against the wind pressure and seismic zone that apply on your site, using the code your project is approved under.

08
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Fast Delivery

Standard configurations on stocked tooling ship in 7 to 15 days; double shifts are arranged for urgent projects.