Applications
MetalKeen manufactures custom rotors for:
Low Consistency Pulpers (LC Pulper)
High Consistency Pulpers (HC Pulper)
Pressure Screens
Fine Screening Systems
Coarse Screening Systems
Recycled Fiber Processing
Mechanical Pulp Lines
TMP / CTMP Systems
Paper Machine Stock Preparation
Pulp & Paper Mills
Quick Specifications
| Item | Specification |
|---|
| Product Name | Custom Pulper Rotor |
| Product Type | Pulper Rotor / Pressure Screen Rotor |
| Materials | Stainless Steel, Duplex Stainless Steel, Wear-Resistant Alloy Steel |
| Manufacturing | CNC Machining, Dynamic Balancing, Welding |
| Surface Treatment | Polishing, Hard Facing, Wear-Resistant Coating |
| Balancing Grade | ISO Dynamic Balancing (Custom Available) |
| OEM / ODM | Available |
| Inspection | CMM, Dynamic Balance, Material Certification |
Key Advantages
High pulping efficiency
Reduced energy consumption
Optimized hydraulic performance
Excellent wear resistance
Long service life
Precision dynamic balancing
Smooth high-speed operation
Compatible with OEM equipment
Material Options
MetalKeen manufactures rotors using:
Stainless Steel 304
Stainless Steel 316L
Duplex Stainless Steel 2205
Wear-Resistant Alloy Steel
Hard-Faced Stainless Steel
Customer-Specified Materials
Material selection depends on pulp type, abrasive contaminants, operating consistency, and expected service life.
Manufacturing Process
Engineering Review
↓
Material Certification
↓
CNC Turning
↓
5-Axis CNC Machining
↓
Blade Profile Machining
↓
Welding (If Required)
↓
Dynamic Balancing
↓
Surface Treatment
↓
Quality Inspection
↓
Packaging
Surface Finish Options
Available finishes include:
Precision Machined Surface
Mirror Polishing
Hard Facing
Tungsten Carbide Wear Protection
Corrosion-Resistant Passivation
Custom Wear Coatings
Typical Applications
Our pulp machine rotors are used in:
Paper Mills
Tissue Production
Packaging Paper Plants
Recycled Fiber Processing
Mechanical Pulp Production
Kraft Pulp Mills
Stock Preparation Systems
Fine Screening Equipment
Pressure Screening Systems
Industrial Pulp Processing
Pulper Rotor vs Pressure Screen Rotor
| Pulper Rotor | Pressure Screen Rotor |
|---|
| Defibers pulp and creates circulation | Generates screening pulses and improves fiber passage |
| Used in pulpers | Used in pressure screens |
| Focus on pulping efficiency | Focus on screening efficiency |
| Handles higher consistency stock | Operates with screened pulp suspension |
Quality Inspection
Every rotor undergoes strict quality control:
Material Certification (EN 10204 3.1 available)
Chemical Composition Verification
CMM Dimensional Inspection
Blade Profile Inspection
Dynamic Balancing Test
Hardness Testing
Surface Finish Inspection
Final Visual Inspection
Inspection reports and complete material traceability are available upon request.
Frequently Asked Questions
What is a pulper rotor?
A pulper rotor is the rotating element inside a pulper that circulates pulp, breaks down fiber bundles, and promotes efficient defibering while minimizing energy consumption.
Can MetalKeen manufacture OEM replacement rotors?
Yes. We manufacture replacement rotors according to customer drawings, OEM samples, or reverse-engineered dimensions. We also support wear-resistant upgrades and performance optimization.
Which materials are recommended?
Wear-resistant stainless steels and duplex stainless steels are commonly selected for their combination of corrosion resistance, strength, and long service life in pulp processing environments.
Do you provide dynamic balancing?
Yes. Every high-speed rotor can be dynamically balanced to customer requirements, helping reduce vibration, improve operating stability, and extend bearing life.
Which industries use these rotors?
Our rotors are widely used in paper mills, recycled fiber plants, mechanical pulp production, tissue manufacturing, packaging paper production, and stock preparation systems.
