Wuhan Junewey SPU Series Secondary Polyurethane Cleaner is designed for fine cleaning of conveyor return belts. Installed below the head pulley and after the primary cleaner, it acts as a secondary precision cleaning device to efficiently remove fine materials, dust and sticky residues left by the primary cleaner, completely solving problems such as material carryback, belt slippage, pulley buildup and dust pollution.
The product features an **integral pull-out high-wear modified polyurethane blade** embedded with aviation-grade AL6063 aluminum alloy reinforcement frame, paired with a rail-type bolt-free installation structure. Single blade replacement takes ≤30 seconds without any tools. Combined with multiple optional tensioning systems (spring/pneumatic/weight/manual), it adapts to different belt widths, speeds and material conditions, providing constant pressure conforming, automatic compensation and minimal adjustment.
It can form a complete multi-stage cleaning system with primary cleaners, return cleaners and air purge cleaners, especially suitable for wet, sticky and adhesive material conveying scenarios, as well as production lines with high cleaning and environmental protection requirements, significantly reducing on-site maintenance costs and environmental pollution.
High Wear Polyurethane Blade
Bolt-Free Quick Change
Multiple Tensioning Options
Full Customization
Core Structure
Working PrincipleThe SPU Series Secondary Cleaner is installed on the return belt below the conveyor head pulley, after the primary cleaner. The tensioning system presses the high-wear modified polyurethane blade against the belt surface with constant pressure.
As the belt runs, the blade scrapes off fine materials, dust and sticky residues left by the primary cleaner through linear uniform contact, achieving secondary precision cleaning. The scraped materials fall directly back into the hopper without secondary pollution, completely solving problems such as return carryback, idler buildup and pulley lagging wear.
Core Technical AdvantagesThe blade is integrally cast and embedded with aviation-grade AL6063 aluminum alloy reinforcement frame, which greatly improves the overall rigidity and deformation resistance of the blade. It does not bend or warp during long-term operation, ensuring linear uniform contact between the blade edge and the belt, and stable cleaning effect. It also effectively extends the service life of the blade and reduces replacement frequency.
The original rail-type pull-out bolt-free installation structure allows blade replacement without removing any bolts or using any tools. Single blade replacement takes ≤30 seconds, significantly reducing downtime for maintenance. It is equipped with a stainless steel anti-lost rope to prevent accidental blade falling off and fully ensure on-site operation safety.
Made of high-resilience, tear-resistant, oil and water-resistant modified polyurethane with moderate hardness, it contacts the belt surface linearly and uniformly, does not scratch the belt or damage belt joints, and is friendly to patterned belts, rubber belts and steel cord belts. It has excellent wear resistance and long service life, greatly reducing operation and maintenance costs.
Four tensioning systems are available: spring, pneumatic, weight and manual bolt. Customers can choose freely according to on-site conditions: spring type is simple and automatic constant pressure; pneumatic type can be remotely controlled for automated production lines; weight type has constant tension and is reliable for harsh conditions; manual type is intuitive and cost-effective.
Optional Tensioning SystemsAutomatic blade wear compensation, constant pressure
Simple structure, extremely low failure rate
Cost-effective, suitable for most general conditions
Easy installation, no additional air or power supply
Constant pressure, unaffected by blade wear
Can be connected to on-site air supply for remote control
Suitable for automated and continuous production lines
Adjustable pressure for different material conditions
Constant tension, unaffected by temperature and dust
Extremely high reliability, almost maintenance-free
Suitable for mines and harsh outdoor environments
No air or power supply required, pure mechanical structure
Lowest cost, intuitive adjustment
Suitable for frequent maintenance and manned scenarios
Simplest structure, no maintenance threshold
Flexible tension adjustment according to working conditions
Technical Specifications| Parameter | Specification |
|---|---|
| Applicable Belt Width | 500mm ~ 2400mm (customizable for larger sizes) |
| Maximum Belt Speed | 4.5 m/s |
| Blade Material | High-Wear Modified PU (AL6063 Frame Embedded) |
| Blade Installation | Rail-Type Pull-Out · Bolt-Free Design |
| Safety Feature | Standard Stainless Steel Anti-Lost Rope |
| Main Shaft Material | Carbon Steel Powder Coated / 304 Stainless Steel (Optional) |
| Installation Position | Below Head Pulley, Secondary Cleaning Position |
| Tensioning Method | Spring / Pneumatic / Weight / Manual Bolt (Optional) |
| Operating Temperature | -30℃ ~ +80℃ |
Installation & Maintenance GuideSelect the corresponding cleaner model according to the conveyor belt width;
Select the appropriate PU blade hardness according to material characteristics (stickiness, humidity, particle size);
Select the suitable tensioning system according to on-site conditions (automation level, air/power supply, dust/humidity);
Prefer stainless steel bracket for wet and corrosive environments;
Can form a multi-stage cleaning system with primary, return and air purge cleaners for optimal effect;
Explosion-proof versions are available for underground coal mines and other hazardous areas.
Shut down the conveyor and ensure it is completely stopped;
Untie the stainless steel anti-lost rope, grasp the blade end and pull it out along the rail;
Insert the new blade into the blade holder along the rail until fully seated;
Re-fasten the stainless steel anti-lost rope;
Check the blade contact status and start the conveyor after confirmation.
✅ No tools required, no bolts to remove, single blade replacement ≤30 seconds
Typical Applications
Wuhan Junewey SPU Series Secondary Polyurethane Cleaner is designed for fine cleaning of conveyor return belts. Installed below the head pulley and after the primary cleaner, it acts as a secondary precision cleaning device to efficiently remove fine materials, dust and sticky residues left by the primary cleaner, completely solving problems such as material carryback, belt slippage, pulley buildup and dust pollution.
The product features an **integral pull-out high-wear modified polyurethane blade** embedded with aviation-grade AL6063 aluminum alloy reinforcement frame, paired with a rail-type bolt-free installation structure. Single blade replacement takes ≤30 seconds without any tools. Combined with multiple optional tensioning systems (spring/pneumatic/weight/manual), it adapts to different belt widths, speeds and material conditions, providing constant pressure conforming, automatic compensation and minimal adjustment.
It can form a complete multi-stage cleaning system with primary cleaners, return cleaners and air purge cleaners, especially suitable for wet, sticky and adhesive material conveying scenarios, as well as production lines with high cleaning and environmental protection requirements, significantly reducing on-site maintenance costs and environmental pollution.
High Wear Polyurethane BladeBolt-Free Quick ChangeMultiple Tensioning OptionsFull CustomizationCore StructureWorking PrincipleThe SPU Series Secondary Cleaner is installed on the return belt below the conveyor head pulley, after the primary cleaner. The tensioning system presses the high-wear modified polyurethane blade against the belt surface with constant pressure.
As the belt runs, the blade scrapes off fine materials, dust and sticky residues left by the primary cleaner through linear uniform contact, achieving secondary precision cleaning. The scraped materials fall directly back into the hopper without secondary pollution, completely solving problems such as return carryback, idler buildup and pulley lagging wear.
Core Technical AdvantagesThe blade is integrally cast and embedded with aviation-grade AL6063 aluminum alloy reinforcement frame, which greatly improves the overall rigidity and deformation resistance of the blade. It does not bend or warp during long-term operation, ensuring linear uniform contact between the blade edge and the belt, and stable cleaning effect. It also effectively extends the service life of the blade and reduces replacement frequency.
The original rail-type pull-out bolt-free installation structure allows blade replacement without removing any bolts or using any tools. Single blade replacement takes ≤30 seconds, significantly reducing downtime for maintenance. It is equipped with a stainless steel anti-lost rope to prevent accidental blade falling off and fully ensure on-site operation safety.
Made of high-resilience, tear-resistant, oil and water-resistant modified polyurethane with moderate hardness, it contacts the belt surface linearly and uniformly, does not scratch the belt or damage belt joints, and is friendly to patterned belts, rubber belts and steel cord belts. It has excellent wear resistance and long service life, greatly reducing operation and maintenance costs.
Four tensioning systems are available: spring, pneumatic, weight and manual bolt. Customers can choose freely according to on-site conditions: spring type is simple and automatic constant pressure; pneumatic type can be remotely controlled for automated production lines; weight type has constant tension and is reliable for harsh conditions; manual type is intuitive and cost-effective.
Optional Tensioning SystemsAutomatic blade wear compensation, constant pressure
Simple structure, extremely low failure rate
Cost-effective, suitable for most general conditions
Easy installation, no additional air or power supply
Constant pressure, unaffected by blade wear
Can be connected to on-site air supply for remote control
Suitable for automated and continuous production lines
Adjustable pressure for different material conditions
Constant tension, unaffected by temperature and dust
Extremely high reliability, almost maintenance-free
Suitable for mines and harsh outdoor environments
No air or power supply required, pure mechanical structure
Lowest cost, intuitive adjustment
Suitable for frequent maintenance and manned scenarios
Simplest structure, no maintenance threshold
Flexible tension adjustment according to working conditions
Technical Specifications| Parameter | Specification |
|---|---|
| Applicable Belt Width | 500mm ~ 2400mm (customizable for larger sizes) |
| Maximum Belt Speed | 4.5 m/s |
| Blade Material | High-Wear Modified PU (AL6063 Frame Embedded) |
| Blade Installation | Rail-Type Pull-Out · Bolt-Free Design |
| Safety Feature | Standard Stainless Steel Anti-Lost Rope |
| Main Shaft Material | Carbon Steel Powder Coated / 304 Stainless Steel (Optional) |
| Installation Position | Below Head Pulley, Secondary Cleaning Position |
| Tensioning Method | Spring / Pneumatic / Weight / Manual Bolt (Optional) |
| Operating Temperature | -30℃ ~ +80℃ |
Installation & Maintenance GuideSelect the corresponding cleaner model according to the conveyor belt width;
Select the appropriate PU blade hardness according to material characteristics (stickiness, humidity, particle size);
Select the suitable tensioning system according to on-site conditions (automation level, air/power supply, dust/humidity);
Prefer stainless steel bracket for wet and corrosive environments;
Can form a multi-stage cleaning system with primary, return and air purge cleaners for optimal effect;
Explosion-proof versions are available for underground coal mines and other hazardous areas.
Shut down the conveyor and ensure it is completely stopped;
Untie the stainless steel anti-lost rope, grasp the blade end and pull it out along the rail;
Insert the new blade into the blade holder along the rail until fully seated;
Re-fasten the stainless steel anti-lost rope;
Check the blade contact status and start the conveyor after confirmation.
✅ No tools required, no bolts to remove, single blade replacement ≤30 seconds
Typical Applications在线客服