Wuhan Junwei anti-overflow skirt series is specially developed for the sealing and protection of belt conveyor guide grooves. It is a core special component to solve the problem of material spillage and dust spillage. The products cover three core categories: double-layer composite type, dual-material EPDM type, and high-wear-resistant natural rubber type. They can be adapted to various grooved angle belts from 0° to 45°, providing long-term sealing protection for high-belt speed, heavy-load, and multi-working conditions. Transportation scenarios provide long-term sealing protection, effectively reducing material loss and dust pollution.
The product adopts a double-layer sealing structure design. The inner layer blocks material and the outer layer is dustproof. It has an automatic follow-up compensation function. It closely fits the belt throughout the entire life cycle, and efficient sealing can be achieved without frequent maintenance; the flexible material design is friendly to the belt and will not cause wear and scratch on the belt surface, and a special gripper can be provided.The use of support plate components forms a one-stop complete solution for "support + sealing" of the guide trough. It is convenient to disassemble and assemble, flexible to adjust, and is widely suitable for transportation scenarios in all industries such as mining, ports, metallurgy, building materials, and chemical industries.
The entire range of products supports customized size production. The maximum continuous length of a single piece can reach 100 meters. No joints are needed for long-distance installation. It can provide a one-stop supporting solution of "skirt + holder + buffer support", effectively reducing on-site installation and maintenance costs.
Double sealing protection
High wear-resistant belt
Material adaptation under all working conditions
One-stop supporting plan
Product series and core structure
core material: Polyurethane wear-resistant layer + high-elastic rubber layer composite integrated molding
structure design: Integrated double-layer sealing structure, the inner polyurethane barrier layer faces the impact of the material, which is highly wear-resistant and scratch resistant; the outer high-elastic rubber sealing layer closely adheres to the belt, automatically follows and compensates to prevent fine materials and dust from escaping.
Adapt scenarios: High belt speed, heavy load, large-particulate material transportation scenarios, strong wear conditions such as mines, sand and gravel aggregate, and port bulk cargo terminals.
core material: Double hardness 70 degrees ethylene propylene diene monomer (EPDM) composite structure
structure design: Single-sided double sealing system, high-hardness supporting layer ensures structural stability, and low-hardness sealing layer flexibly adheres to the belt. It has excellent chemical corrosion resistance, high and low temperature resistance, weather resistance and aging resistance. It can achieve double sealing on the single-sided structure. Effect, easy installation.
Adapt scenarios: Chemical industry, metallurgy, outdoor open-air transportation and other scenarios that require chemical and weather resistance, and high belt speed conventional material transportation conditions.
core material: High-quality high-wear resistant natural rubber (Premium NR)
structure design: Highly elastic single skirt structure, with ultra-high tensile strength and tear strength, excellent wear resistance, soft texture and strong fit, can effectively adapt to belt fluctuations, continuously maintain the sealing effect, and prevent material spillage and dust spillage.
Adapt scenarios: Grain, building materials, conventional mines and other medium to heavy load transportation scenarios, general working conditions that require high elasticity and high wear resistance.
The double-layered skirt adopts a composite structure of "inner barrier layer + outer sealing layer". When used with the buffer bed/support plate assembly, stable sealing of the entire section of the guide groove can be achieved.
The entire series of products support the customization of various grooved angle belts of 0°, 20°, 35°, and 45°. The maximum continuous length of a single piece can be up to 100 meters. No joints are needed for long-distance installation. The size specifications can be customized according to on-site working conditions.
core technology advantages
The dual sealing design of "inner layer blocking + outer layer dustproof" is adopted. The main sealing device is fixed on the side wall of the chute, and the secondary sealing device is attached to the outside of the belt, which can effectively prevent large particulate materials from falling and fine dust from escaping, and solve the problem of material overflow and dust pollution on both sides of the guide chute. Efficient sealing effect can still be maintained under high belt speed conditions.
It is designed with highly elastic and flexible materials, and there is no hard structure at the contact part with the belt. Effective sealing can be achieved without applying downward pressure. It will not cause wear or scratches on the belt surface, effectively extending the service life of the belt; The service life of the polyurethane wear-resistant layer is more than three times that of ordinary rubber baffles, and the operation and maintenance costs throughout the life cycle are lower.
The outer sealing layer adopts a special self-compensating structure, which can automatically adjust the fit in real time following the belt fluctuations and deviations. It can maintain close fit without frequent adjustment or additional maintenance throughout the entire life cycle, achieving maintenance-free and efficient sealing; Installation and replacement can be completed without dismantling the guide groove, which greatly reduces on-site maintenance difficulty and downtime.
Covering three major material systems: polyurethane composite, ethylene propylene diene monomer, and natural rubber, it can meet the needs of various working conditions such as wear resistance, chemical resistance, high and low temperature resistance, flame retardant and antistatic, etc., and adapt to special scenes such as coal mining, chemical industry, and outdoor; It can provide special clamps, buffer beds, and pallet components to provide customers with a one-stop solution for "support + sealing" for the guide trough.
Automatic fitting belt long-term and stable sealing
Flexible material zero-damage protective belt
The three major material series cover all industry scenarios
Complete solution for holder + buffer bed + pallet
Core technical parameter list
| performance items | Double-layer composite type (polyurethane + rubber) | Dual-material EPDM type | High wear-resistant natural rubber type (NR) |
|---|---|---|---|
| material hardness | Polyurethane 90±5Sh A /Rubber 65±5Sh A | 70±5Sh A (double hardness composite) | 45±5Sh A |
| tensile strength | ≥25MPa | ≥18MPa | ≥22MPa |
| elongation at break | ≥400% | ≥500% | ≥700% |
| tear strength | ≥40N/mm | ≥25N/mm | ≥30N/mm |
| DIN abrasion | ≤80mm³ | ≤150mm³ | ≤130mm³ |
| Operating temperature | -20℃ ~ +80℃ | -40℃ ~ +120℃ | -30℃ ~ +70℃ |
| adapter groove angle | 0°, 20°, 35°, 45° (customizable) | ||
| Maximum length of single piece | 100 meters | ||
Matching special holder
Wuhan Junwei is a special holder for anti-spill skirts. It is designed with galvanized/stainless steel anti-corrosion material. It has a compact structure and firm clamping. It can quickly fix the skirt position. It also supports convenient adjustment and disassembly, and can be completed without professional tools. Installation, maintenance and replacement.
Adapts to a full range of anti-spill skirt specifications, and can customize the length and installation hole spacing
Anti-corrosion material design, suitable for harsh working conditions such as humidity, high dust, and corrosion
Modular design makes installation, adjustment and disassembly convenient, greatly reducing the difficulty of on-site operations
Strong clamping force, no loosening or deviation during operation, ensuring long-term stability of the sealing effect
One-stop supporting solution: anti-spill skirt + buffer bed/pallet assembly
Efficient sealing of the material guide groove not only requires high-quality anti-overflow skirt, but also requires a stable belt support system. Wuhan Junwei can provide a one-stop material guide groove sealing protection solution of "anti-spill skirt + pallet assembly/buffer bed". Through the pallet/buffer bed, it provides continuous and stable support for the entire section of the belt at the blanking point to avoid the impact of the belt due to material impact,The gap is shaken, deformed, and undulating, which ensures the continuous close fit between the anti-spill skirt and the belt from the root cause, achieves a long-term sealing effect of preventing material spillage and dust suppression, and completely solves the problem of "sealing failure, material overflow, dust pollution" in traditional material guide grooves.
It is arranged at intervals between the two supporting rollers to provide continuous and uniform support for the belt, effectively prevent the belt from shaking and sinking, greatly improve the fit and sealing between the belt and the skirt, and prevent dust leakage from the root cause.
Adopt ultra-high molecular weight polyethylene rectangular support plate, which can be used on both sides, with low friction coefficient, excellent wear resistance, and service life far longer than ordinary materials
Special fixing method is adopted, and there are no connecting bolts and raised structures on the working surface, which completely prevents bolts from scratching the belt and protects the conveyor belt in all aspects.
It can provide flame-retardant and antistatic material supporting plates to meet the safe use requirements under special working conditions such as underground coal mines
When used together with the anti-overflow skirt, it can achieve gap-free support and sealing of the entire section of the material guide groove, greatly reducing the frequency of on-site maintenance.
Specially designed for heavy-load impact conditions at the blanking point. The surface is made of UHMW ultra-high molecular weight polyethylene material, with extremely low friction coefficient and excellent wear resistance; the bottom layer is a highly elastic special rubber layer, which can efficiently absorb the impact energy of falling materials and greatly reduce the impact of materials on the conveyor belt, improve the stress condition of the belt at the blanking point from the root cause, and protect the belt from damage
Both ends of the contact surface of the buffer strip are arc-shaped, which effectively ensures smooth operation of the conveyor belt and avoids scratching the belt.
The unique formula and vulcanization process ensure the high bond strength between the UHMW surface layer and the rubber layer of the buffer strip, which is firm, reliable and never separated.
Buffer strips of different lengths and thicknesses can be provided to meet the customization needs of different impact conditions
Effectively eliminate wave deformation caused by uneven stress on the conveyor belt, greatly improve the fit and sealing between the belt and the anti-overflow skirt, and completely solve the problem of splashing and scattering of materials.
The overall steel structure design is stable and reliable, simple to install, convenient to maintain, and durable. It is matched with the anti-overflow skirt to achieve dual protection of "cushioning and anti-impact + fully sealed anti-overflow" at the blanking point.
Installation and Selection Guide
Select the appropriate material series according to the characteristics of the conveyed material, belt speed, and working environment;
Select the anti-overflow skirt with the corresponding angle according to the belt groove angle;
Determine the single length and total quantity of the skirt according to the length of the guide groove, and give priority to selecting continuous long size to reduce joints;
Equipped with a corresponding number of grippers, and routinely configure 1 set of grippers every 500 mm;
Under heavy impact conditions at the material dropping point, it is recommended to provide a buffer bed simultaneously; it is recommended to provide a support plate assembly for the conventional material guide groove section to ensure the sealing effect;
For special scenes such as underground coal mines, special specifications for flame retardant and antistatic need to be selected.
Prioritize the installation of the buffer bed/pallet assembly to ensure that the belt support is flat, without sinking, and without shaking;
The anti-overflow skirt is installed on both sides of the material guide groove, and the sealing surface of the skirt is closely attached to the belt surface without excessive extrusion;
Use a clamper to fix the skirt on the side wall of the material guide groove to ensure that the clamping is firm and there is no looseness during operation;
During long-distance installation, the butt joints of multiple skirt sections must be closely fitted without gaps or dislocation;
After the installation is completed, manually wind the belt and confirm that there is no jam or excessive friction before starting the machine;
Regularly check the fitting condition and wear status of the skirt, and adjust or replace it in time to ensure the sealing effect.
Typical application scenario





Wuhan Junwei anti-overflow skirt series is specially developed for the sealing and protection of belt conveyor guide grooves. It is a core special component to solve the problem of material spillage and dust spillage. The products cover three core categories: double-layer composite type, dual-material EPDM type, and high-wear-resistant natural rubber type. They can be adapted to various grooved angle belts from 0° to 45°, providing long-term sealing protection for high-belt speed, heavy-load, and multi-working conditions. Transportation scenarios provide long-term sealing protection, effectively reducing material loss and dust pollution.
The product adopts a double-layer sealing structure design. The inner layer blocks material and the outer layer is dustproof. It has an automatic follow-up compensation function. It closely fits the belt throughout the entire life cycle, and efficient sealing can be achieved without frequent maintenance; the flexible material design is friendly to the belt and will not cause wear and scratch on the belt surface, and a special gripper can be provided.The use of support plate components forms a one-stop complete solution for "support + sealing" of the guide trough. It is convenient to disassemble and assemble, flexible to adjust, and is widely suitable for transportation scenarios in all industries such as mining, ports, metallurgy, building materials, and chemical industries.
The entire range of products supports customized size production. The maximum continuous length of a single piece can reach 100 meters. No joints are needed for long-distance installation. It can provide a one-stop supporting solution of "skirt + holder + buffer support", effectively reducing on-site installation and maintenance costs.
Double sealing protection
High wear-resistant belt
Material adaptation under all working conditions
One-stop supporting plan
Product series and core structure
core material: Polyurethane wear-resistant layer + high-elastic rubber layer composite integrated molding
structure design: Integrated double-layer sealing structure, the inner polyurethane barrier layer faces the impact of the material, which is highly wear-resistant and scratch resistant; the outer high-elastic rubber sealing layer closely adheres to the belt, automatically follows and compensates to prevent fine materials and dust from escaping.
Adapt scenarios: High belt speed, heavy load, large-particulate material transportation scenarios, strong wear conditions such as mines, sand and gravel aggregate, and port bulk cargo terminals.
core material: Double hardness 70 degrees ethylene propylene diene monomer (EPDM) composite structure
structure design: Single-sided double sealing system, high-hardness supporting layer ensures structural stability, and low-hardness sealing layer flexibly adheres to the belt. It has excellent chemical corrosion resistance, high and low temperature resistance, weather resistance and aging resistance. It can achieve double sealing on the single-sided structure. Effect, easy installation.
Adapt scenarios: Chemical industry, metallurgy, outdoor open-air transportation and other scenarios that require chemical and weather resistance, and high belt speed conventional material transportation conditions.
core material: High-quality high-wear resistant natural rubber (Premium NR)
structure design: Highly elastic single skirt structure, with ultra-high tensile strength and tear strength, excellent wear resistance, soft texture and strong fit, can effectively adapt to belt fluctuations, continuously maintain the sealing effect, and prevent material spillage and dust spillage.
Adapt scenarios: Grain, building materials, conventional mines and other medium to heavy load transportation scenarios, general working conditions that require high elasticity and high wear resistance.
The double-layered skirt adopts a composite structure of "inner barrier layer + outer sealing layer". When used with the buffer bed/support plate assembly, stable sealing of the entire section of the guide groove can be achieved.
The entire series of products support the customization of various grooved angle belts of 0°, 20°, 35°, and 45°. The maximum continuous length of a single piece can be up to 100 meters. No joints are needed for long-distance installation. The size specifications can be customized according to on-site working conditions.
core technology advantages
The dual sealing design of "inner layer blocking + outer layer dustproof" is adopted. The main sealing device is fixed on the side wall of the chute, and the secondary sealing device is attached to the outside of the belt, which can effectively prevent large particulate materials from falling and fine dust from escaping, and solve the problem of material overflow and dust pollution on both sides of the guide chute. Efficient sealing effect can still be maintained under high belt speed conditions.
It is designed with highly elastic and flexible materials, and there is no hard structure at the contact part with the belt. Effective sealing can be achieved without applying downward pressure. It will not cause wear or scratches on the belt surface, effectively extending the service life of the belt; The service life of the polyurethane wear-resistant layer is more than three times that of ordinary rubber baffles, and the operation and maintenance costs throughout the life cycle are lower.
The outer sealing layer adopts a special self-compensating structure, which can automatically adjust the fit in real time following the belt fluctuations and deviations. It can maintain close fit without frequent adjustment or additional maintenance throughout the entire life cycle, achieving maintenance-free and efficient sealing; Installation and replacement can be completed without dismantling the guide groove, which greatly reduces on-site maintenance difficulty and downtime.
Covering three major material systems: polyurethane composite, ethylene propylene diene monomer, and natural rubber, it can meet the needs of various working conditions such as wear resistance, chemical resistance, high and low temperature resistance, flame retardant and antistatic, etc., and adapt to special scenes such as coal mining, chemical industry, and outdoor; It can provide special clamps, buffer beds, and pallet components to provide customers with a one-stop solution for "support + sealing" for the guide trough.
Automatic fitting belt long-term and stable sealing
Flexible material zero-damage protective belt
The three major material series cover all industry scenarios
Complete solution for holder + buffer bed + pallet
Core technical parameter list
| performance items | Double-layer composite type (polyurethane + rubber) | Dual-material EPDM type | High wear-resistant natural rubber type (NR) |
|---|---|---|---|
| material hardness | Polyurethane 90±5Sh A /Rubber 65±5Sh A | 70±5Sh A (double hardness composite) | 45±5Sh A |
| tensile strength | ≥25MPa | ≥18MPa | ≥22MPa |
| elongation at break | ≥400% | ≥500% | ≥700% |
| tear strength | ≥40N/mm | ≥25N/mm | ≥30N/mm |
| DIN abrasion | ≤80mm³ | ≤150mm³ | ≤130mm³ |
| Operating temperature | -20℃ ~ +80℃ | -40℃ ~ +120℃ | -30℃ ~ +70℃ |
| adapter groove angle | 0°, 20°, 35°, 45° (customizable) | ||
| Maximum length of single piece | 100 meters | ||
Matching special holder
Wuhan Junwei is a special holder for anti-spill skirts. It is designed with galvanized/stainless steel anti-corrosion material. It has a compact structure and firm clamping. It can quickly fix the skirt position. It also supports convenient adjustment and disassembly, and can be completed without professional tools. Installation, maintenance and replacement.
Adapts to a full range of anti-spill skirt specifications, and can customize the length and installation hole spacing
Anti-corrosion material design, suitable for harsh working conditions such as humidity, high dust, and corrosion
Modular design makes installation, adjustment and disassembly convenient, greatly reducing the difficulty of on-site operations
Strong clamping force, no loosening or deviation during operation, ensuring long-term stability of the sealing effect
One-stop supporting solution: anti-spill skirt + buffer bed/pallet assembly
Efficient sealing of the material guide groove not only requires high-quality anti-overflow skirt, but also requires a stable belt support system. Wuhan Junwei can provide a one-stop material guide groove sealing protection solution of "anti-spill skirt + pallet assembly/buffer bed". Through the pallet/buffer bed, it provides continuous and stable support for the entire section of the belt at the blanking point to avoid the impact of the belt due to material impact,The gap is shaken, deformed, and undulating, which ensures the continuous close fit between the anti-spill skirt and the belt from the root cause, achieves a long-term sealing effect of preventing material spillage and dust suppression, and completely solves the problem of "sealing failure, material overflow, dust pollution" in traditional material guide grooves.
It is arranged at intervals between the two supporting rollers to provide continuous and uniform support for the belt, effectively prevent the belt from shaking and sinking, greatly improve the fit and sealing between the belt and the skirt, and prevent dust leakage from the root cause.
Adopt ultra-high molecular weight polyethylene rectangular support plate, which can be used on both sides, with low friction coefficient, excellent wear resistance, and service life far longer than ordinary materials
Special fixing method is adopted, and there are no connecting bolts and raised structures on the working surface, which completely prevents bolts from scratching the belt and protects the conveyor belt in all aspects.
It can provide flame-retardant and antistatic material supporting plates to meet the safe use requirements under special working conditions such as underground coal mines
When used together with the anti-overflow skirt, it can achieve gap-free support and sealing of the entire section of the material guide groove, greatly reducing the frequency of on-site maintenance.
Specially designed for heavy-load impact conditions at the blanking point. The surface is made of UHMW ultra-high molecular weight polyethylene material, with extremely low friction coefficient and excellent wear resistance; the bottom layer is a highly elastic special rubber layer, which can efficiently absorb the impact energy of falling materials and greatly reduce the impact of materials on the conveyor belt, improve the stress condition of the belt at the blanking point from the root cause, and protect the belt from damage
Both ends of the contact surface of the buffer strip are arc-shaped, which effectively ensures smooth operation of the conveyor belt and avoids scratching the belt.
The unique formula and vulcanization process ensure the high bond strength between the UHMW surface layer and the rubber layer of the buffer strip, which is firm, reliable and never separated.
Buffer strips of different lengths and thicknesses can be provided to meet the customization needs of different impact conditions
Effectively eliminate wave deformation caused by uneven stress on the conveyor belt, greatly improve the fit and sealing between the belt and the anti-overflow skirt, and completely solve the problem of splashing and scattering of materials.
The overall steel structure design is stable and reliable, simple to install, convenient to maintain, and durable. It is matched with the anti-overflow skirt to achieve dual protection of "cushioning and anti-impact + fully sealed anti-overflow" at the blanking point.
Installation and Selection Guide
Select the appropriate material series according to the characteristics of the conveyed material, belt speed, and working environment;
Select the anti-overflow skirt with the corresponding angle according to the belt groove angle;
Determine the single length and total quantity of the skirt according to the length of the guide groove, and give priority to selecting continuous long size to reduce joints;
Equipped with a corresponding number of grippers, and routinely configure 1 set of grippers every 500 mm;
Under heavy impact conditions at the material dropping point, it is recommended to provide a buffer bed simultaneously; it is recommended to provide a support plate assembly for the conventional material guide groove section to ensure the sealing effect;
For special scenes such as underground coal mines, special specifications for flame retardant and antistatic need to be selected.
Prioritize the installation of the buffer bed/pallet assembly to ensure that the belt support is flat, without sinking, and without shaking;
The anti-overflow skirt is installed on both sides of the material guide groove, and the sealing surface of the skirt is closely attached to the belt surface without excessive extrusion;
Use a clamper to fix the skirt on the side wall of the material guide groove to ensure that the clamping is firm and there is no looseness during operation;
During long-distance installation, the butt joints of multiple skirt sections must be closely fitted without gaps or dislocation;
After the installation is completed, manually wind the belt and confirm that there is no jam or excessive friction before starting the machine;
Regularly check the fitting condition and wear status of the skirt, and adjust or replace it in time to ensure the sealing effect.
Typical application scenario




