Skirt Rubber
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Skirt Rubber
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Skirt Rubber

Y skirt rubber for belt conveyor chute, dual seal skirt rubber built with rubber base and polyurethane wear facing stops material spillage & dust. Custom length, low belt abrasion, easy install for mining, cement, port conveying systems.

Y skirt rubber acts as a key sealing spare part fitted on belt conveyor transfer chutes. It uses a practical dual sealing structure, fixing many frequent headaches seen on bulk material conveying sites.

Plenty of conveyor lines struggle with material spilling along chute edges. Spilled product creates messy work zones, wastes usable raw material, and brings hidden safety hazards for site workers. Many maintenance crews spend lots of time cleaning up dropped material every shift. Our Y skirt rubber solves these real life pain points. It presses tight against belt surface and chute side plates, holds bulk material inside the chute, and cuts dust release during loading operations.

 

Real World Benefits of This Dual Seal Skirt

  • Dual sealing design stops spillage and flying dust
  • Makes daily site operation safer for workers
  • Cuts down material loss from chute gaps
  • Reduces unnecessary wear on your conveyor belt
  • Simple to fit, quick to adjust during maintenance

Dual Material Build for Conveyor Skirt Boards

This skirt rubber is assembled from two distinct materials: a rubber base body paired with high grade polyurethane wear facing section.

The section making direct contact with the running belt is built from quality polyurethane stock. Polyurethane delivers strong wear resistance. It slides smoothly across belt covers, will not scratch or gouge conveyor belts, and lasts far longer than full rubber skirts you find on the market.

1.Polyurethane Wear Facing Section That Touches the Belt

This polyurethane layer takes all the friction from moving belts. Its formula focuses on wear resistance while keeping enough flexibility to avoid belt damage.

2.Rubber Base Gives Solid Structural Support

Thick rubber main body keeps overall shape stable. It absorbs impact from bulk material hitting the skirt, prevents tearing and deformation in tough working conditions.

 

How The Dual Sealing Setup Works On Site

Two sealing lips sit against chute side plates and moving conveyor belt. Contact seals block granular bulk goods leaking out of loading chutes. The outer lip can flip or get tweaked based on actual belt running conditions. On site staff can adjust compression without cutting or modifying the rubber itself.

Tunable Outer Seal Lip for Field Fine Tuning

Outer lip features rounded transition surface. No sharp hard edges to dig into belt rubber cover. This lowers friction abrasion and gives extra protection for your conveyor belt.

One Piece Inner Seal Lip Blocks Material Leaks

Inner seal is integrally molded for each side. Its full length matches the whole loading chute. It forms a continuous barrier, stopping fine dust and small sized bulk particles escaping through gaps.

 

Specifications

Length Customizable
Width 200mm
Thickness 20mm
Polyurethane width 55mm
Polyurethane thickness 5mm
Rubber Performance Parameters
Rubber hardness 70±5 Shore A
Tensile strength ≥6Mpa
Elongation at break ≥300%
Polyurethane Performance Parameters
Tensile strength ≥30Mpa
Elongation at break ≥600%
Hardness 85±5Shore A
Abrasion ≤120mm3

 

Where Use Y Skirt Rubber

Suited for most bulk material belt conveyor transfer points.

Types of Bulk Materials It Handles

Works reliably with coal, ore, sand, gravel and other abrasive bulk materials.

Common Industries & Conveyor Sites

  • Coal mines and mineral processing conveyor lines
  • Cement plant transfer chutes
  • Aggregate crushing & screening conveying systems
  • Port bulk cargo handling equipment
  • Power plant raw coal feeding belts

 

Why Choose Our Y Skirt Rubber Over Standard Skirt Options

Lots of site operators pick our dual layer Y skirt rubber instead of cheap single lip alternatives. This two part build pairs the toughness of rubber base with high wear performance of polyurethane wear facing. You get fewer part replacements, less material waste and lower daily maintenance workload for conveyor transfer stations.

 

Practical Installation & Adjustment Advice

Things To Check Before You Start Mounting

Check your conveyor belt first. Heavy deformation or large surface damage on the belt will hurt sealing performance, no matter how good your skirt rubber is.

Hands On Tips For Fitting And Tuning

  1. Secure Y skirt rubber onto chute side mounting brackets. Do not crank bolts too tight. Excessive compression speeds up lip wear significantly.
  2. Tune outer lip position so it touches belt lightly. Light contact works best; heavy squeezing shortens service life.
  3. Carry out regular visual checks. Once sealing lip wears thin, adjust position or arrange replacement in good time.

 

Common Questions From Our Conveyor Clients

Q: Can I get Y skirt rubber made to my custom length?

A: Sure. Length is fully customisable. Just send over your real world chute dimension, our factory cuts to exact size for you.

Q: Will this skirt rubber leave scratches on my conveyor belt?

A: Contact surface uses high grade polyurethane with rounded lip profile. It will not damage belt cover under proper installation. Over tight bolt pressure is the top cause of belt wear. Please follow our fitting guidance.

Q: What real world service life can I expect?

A: Service life varies a lot. It depends on conveyed material abrasiveness, belt speed and how you set compression. Under normal working conditions with correct fitting, many sites run it for multiple months before replacement. Heavy abrasion applications will shorten service cycles.

Q: Minor dust still escapes after installation, what should I do?

A: Check two points first. Confirm sealing lip keeps steady contact along full chute length, and bolts are not too loose. Fine tune the adjustable outer lip to get better sealing tightness.

Q: Can I swap old single lip skirt rubber directly for Y skirt rubber?

A: It works for most existing chutes. Just double check mounting space and bracket dimensions. Snap a few photos of your site setup and send them across, our team can give quick fit feedback.

 

Products

Sidewall Conveyor Belt

Sidewall Conveyor Belt

QBF rubber specializes in designing and manufacturing high-quality steep incline conveyor belts for bulk material lifting across industries such as harbors, metallurgy, tunneling, power plants, chemicals, cement, and metro. As the only Chinese manufacturer using full European molds and standards, QBF rubber provides complete solutions covering belt selection, production, installation, commissioning, and trouble shooting.
Pocket Type Conveyor Belt

Pocket Type Conveyor Belt

Developed from high angle sidewall belts and high capacity bucket elevators, the Pocket Type Conveyor Belt (Pocketlift) suits underground mining, tunnels, port handling and large volume silo feeding, with lifting heights up to 800 meters.
It handles ultra high lift, high throughput tasks beyond conventional high angle sidewall belts, realizing stable continuous bulk material transportation.
Rope track Sidewall Conveyor Belt

Rope-track Sidewall Conveyor Belt

RopeTrack corrugated sidewall steel cord conveyor belt for overhead cable conveying. ST10000 high strength, 25000 t/h throughput for mine, quarry & complex terrain long distance bulk transport. Custom engineering available.
Bucket Elevator Conveyor Belt

Bucket Elevator Conveyor Belt

Bucket elevator conveyor belts are cost effective core components for vertical bulk material handling, supporting lifting heights over 100 meters. Reinforced with high grade tear resistant polyester canvas or optional steel cord anti tear layers for heavy duty use.
They deliver low elongation, high throughput and stable operation with easy maintenance, helping operators reduce downtime from belt failures and frequent replacements.
Pipe Conveyor Belt

Pipe Conveyor Belt

Pipe conveyor belt (tubular conveyor belt) folds into a closed tube in operation, fully containing bulk materials to eliminate spillage and dust emissions while shielding cargo from external contamination.
Supporting sharp horizontal and vertical bends, it meets strict environmental requirements and helps plants remove redundant transfer points, favored by operators troubled by on site dust and leakage issues.
Chevron Conveyor Belt

Chevron Conveyor Belt

Chevron conveyor belt, fitted with raised chevron cleats, is designed for steep angle conveying to prevent bulk material sliding and fallback, an issue common for smooth flat belts.
Various chevron patterns are available for different slope demands. Widely used in mining, farming, construction and recycling, it maintains stable performance under harsh on site working conditions.

Recent news

Sidewall Conveyor Belt Sagging Solutions QBF rubber Free Zone Base Belt Design Extends Service Life by 30%

Sidewall Conveyor Belt Sagging Solutions: QBF rubber Free Zone Base Belt Design Extends Service Life by 30%

Sep 18, 2026

According to industry statistics, up to 80% of sidewall conveyor belt failures occur due to rigidity loss–induced sagging during operation. QBF rubberaddresses this root cause with an innovative “free zone ” base belt design, significantly extending the service life of sidewall conveyor belts. What Is Belt Sagging and Why Does It Shorten Belt Life? Under heavy load, especially on the return run, the base belt often sags due to insufficient transverse rigidity. This sagging triggers a chain of serious issues: Stress concentration – Sagging causes abnormal flexing at the sidewall root as it passes over the drum, concentrating stress in a localized area. Fatigue cracking – Repeated flexing leads to fatigue cracks at the sidewall root, which can develop into through-wall damage. Baffle detachment – Vibration and deformation from sagging transfer to the baffle connection, accelerating adhesive aging and causing baffle loosening or separation. Once sidewall tearing or baffle detachment occurs, the entire sidewall conveyor belt often fails prematurely. Therefore, solving the sagging problem is the key to extending belt service life. Root Cause of Belt Sagging The core cause of sagging lies in structural deficiencies of traditional base belt designs: Insufficient transverse rigidity – Traditional base belts cannot maintain a flat profile under heavy loads or long-span conditions. Unbuffered stress transfer – The sidewall-to-base belt connection lacks a flexible transition, so abnormal sagging stress directly impacts the sidewall root. Accelerated fatigue accumulation – Repeated flexing at stress concentration points causes cracks to grow from micro to macro levels. Understanding these causes makes it clear: simply increasing sidewall thickness or changing the rubber compound is a temporary fix. The solution must start with the base belt structure. Solution: QBF rubber Free Zone Base Belt Design QBF rubber introduces a “free zone ” base belt design to directly target the root cause of sagging. How the free zone  Works Blocks stress transfer – The free zone  acts as a stress buffer, absorbing and isolating abnormal sagging stress before it reaches the sidewall root. Dissipates flexing energy – The flexible edge allows the base belt to adaptively deform as it passes over the drum, spreading concentrated flexing over a larger area. Protects sidewall and baffles – By mitigating the extra load caused by sagging, the risk of fatigue tearing at the sidewall root is greatly reduced, and the baffle adhesive layer no longer suffers excessive vibration stress. Key Advantages of the free zone  Design Advantage Result sidewall tear resistance Eliminates stress concentration points; fatigue life extended by 2–3 times Baffle detachment risk Smoother operation; significantly slower adhesive aging Overall belt service life Comprehensive service life increased by 30% or more   QBF rubber’s Free Zone Base Belt design achieves a leap from “reacting to sagging consequences” to “eliminating the root cause of sagging.” Summary: Eliminate Sagging at the Source for Longer Sidewall Belt Life The sagging problem in heavy-duty sidewall conveyor belts originates in the base belt structure. QBF rubber’s free zone  design solves this industry pain point by blocking stress transfer, dissipating flexing energy, and protecting both sidewall and baffles. If you are experiencing frequent sagging, sidewall tearing, or baffle detachment with your sidewall conveyor belt, contact QBF rubber for professional technical support and customized solutions.  
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QBF Rubber Anti stick Sidewall Belting Helps Shenzhen Tunnel Construction

QBF Rubber Anti-stick Sidewall Belting Helps Shenzhen Tunnel Construction

Sep 18, 2026

The customized S400 B1800 TCS360 anti-stick Sidewall Belt — developed by QBF Rubber for the Shenzhen Tunnel Project — is now under installation! With a total length of 190m, this high-performance non-stick belt is set to play a crucial role in ensuring smooth and efficient tunnel construction. More Than Just a Product – Full-Service Support! Our after-sales team is fully committed to providing: ✔ Tailored installation plans ✔ Professional on-site guidance ✔ Hot vulcanization splicing services ✔ Comprehensive commissioning & operation support Every step is meticulously handled to ensure flawless performance of the sidewall belt!   Technology + Service Facilitate Tunnel Construction “This cooperation reflects QBF rubber’s R&D strength and service capability in the field of special conveyor belts,” the project manager said, “The application of the anti-stick sidewall conveyor belt will significantly improve the conveying efficiency, reduce the downtime for maintenance, and provide key support for the project to be pushed forward on schedule.” In the future, QBF rubber will continue to focus on technological innovation and customer needs to provide more efficient and durable conveyor system solutions for global infrastructural projects.  
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Mining Vertical Lifting System Solution Tackling Continuous Conveying Challenges for Deep Mine Operations

Mining Vertical Lifting System Solution: Tackling Continuous Conveying Challenges for Deep-Mine Operations

Sep 17, 2026

As mining operations go deeper, vertical lifting efficiency and safety have become major constraints on mine output. Designed for deep shafts, inclined shafts and complex terrain, our vertical lifting system works across 0 500 m vertical heights and supports steep angle, long distance material transport. Thanks to modular design, high throughput and full lifecycle services, it has gained wide attention in the mining material handling industry.   Three Core Solutions for Varied Lifting Applications Our portfolio includes three main product lines to cover diverse vertical transport demands. Steep Angle Sidewall Conveyor Solution Engineered as an alternative to conventional mine cages, this solution handles vertical heights from 0 m to 500 m. In inclined shaft conditions, throughput can exceed 10 000 tons per hour. It overcomes the low efficiency, intermittent nature of cage hoisting and enables fast, continuous material transfer from underground to surface. Pocket Type Vertical Lifting System Optimized for high height, high volume tasks, this system is ideal for muck removal shaft main lines and blind shaft intermediate transfer. Proven in tunneling projects, it runs stably above 250 m lift height with capacities over 800 m³/h. It fills performance gaps under tight space conditions and can reach lifting heights over 500 m. Long Distance Rope track Conveying System Boasting single spans beyond 2 000 m, this system serves mountain and river valley sites. It reduces transfer points, cuts energy consumption and lowers overall maintenance costs for difficult terrain material haulage. Full Chain “EPC+M+O” Service Model Beyond equipment supply, Bairui provides a complete EPC+M+O service package: E (Evaluation & Custom Design): Custom engineer conveyors and belts based on mine geology, production targets and existing site infrastructure. P (Core Equipment Manufacturing): In house production of sidewall belts, lifting pockets and drive units for reliable quality and on time delivery. C (Installation Guidance): On site technical support for installation and commissioning to ensure smooth startup. M (Operation Management): Partial or full operational outsourcing to help mines hit production targets quickly. O (Smart O&M): Condition monitoring and predictive maintenance platform for early fault warnings and optimized maintenance schedules. Key Benefits vs Traditional Lifting Equipment For shafts deeper than 500 m, traditional multi rope friction hoists suffer from short rope life, batch type loading and complex controls. The Steep Angle Sidewall Conveyor Solution fits compactly within limited shaft space. Its continuous output connects directly to processing plants or silos, eliminating intermediate stockpiles and re handling expenses. In tunnel construction, the Pocket Type Vertical Lifting System features small turning radii and steep climbing performance. It has replaced imported equipment on multiple inclined shaft tunnel projects, delivering local manufactured cost savings. It requires minimal maintenance space and tolerates heavy dust and poor water conditions.   Field Proven Project Experience Our solutions are operational across global metal mines, coal mines and large tunneling infrastructure. China’s first 255 m mine used vertical lifting system is now in service, boosting vertical conveying efficiency by over 10× with safe, energy saving and eco friendly operation. September Global Exhibition Roadshow This September, Bairuifu will attend four key mining expos across Central Asia, Africa and China to showcase our full vertical lifting portfolio and EPC+M+O service model. Industry professionals are welcome to visit our booths for technical exchanges.   Exhibition Schedule Mining World Central Asia 2026 Sep 16 18, 2026|Atakent International Exhibition Centre, Almaty | Booth: 11 307   Electra Mining Africa 2026 Sep 7 11, 2026|Johannesburg Expo Centre | Booth: P10   The 28th China Mining Conference and Exhibitlon Sep 10 12, 2026|Meijiang Convention and Exhibition Center, Tianjin | Booth: N2 2607   The 20th Yulin International Coal and High-end Energy Chemical Industry Expo Sep 13 15, 2026|Yulin Convention & Exhibition Center| Booth: H342 / H335  
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See Latest Service

Hot‑vulcanized Splice

Our team provides professional 24/7 hot vulcanized splicing for sidewall, steel cord, fabric and pipe conveyor belts. Staffed with fully trained, experienced technicians and equipped with advanced mobile and stationary vulcanizing presses, we deliver seamless, long-lasting belt joints that optimize both technical performance and overall operational costs.
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Selection Guide

QBF rubber provides professional customized sidewall belt selection services for all types of industrial inclined conveying scenarios. Supported by our independent self-developed selection system and senior German technical experts, we deliver accurate, application-oriented belt solutions tailored to actual site conditions, avoiding specification mismatches and unnecessary performance waste for optimal system operation.
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Maintenance Service

We deliver reliable, plant-focused conveyor belt and system maintenance services designed to prevent unplanned downtime. Our certified on-site teams provide round-the-clock support for routine inspections, belt realignment, wear repairs, component replacements and system tuning. We help industrial facilities maintain stable throughput while lowering long-term operational and maintenance overhead.
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