Recycling and Waste Processing
Rotor and blade repair for shredders, bag openers and recycling crushers, refurbished with hardfacing and carbide PTA overlays.
In short: In recycling and waste processing plants, shredder shafts, blades and screw conveyors handle mixed, uncontrolled material, so wear and impact occur together. UMEK offers refurbishment solutions for these parts through hardfacing and weld restoration.
Application Areas
Our Solutions for Recycling
- Shredder rotor repair
- Hardfacing of crusher blades
- Refurbishment of bag opener shafts and blades
- Restoration of blade seating faces
- Repair of shaft and bearing areas
- Carbide PTA overlays
- Hardfacing welds
- Wear plates
- Screw conveyors
- Wear solutions for waste and battery recycling crushers
Typical Causes of Wear in Recycling and Waste Processing
Impact and abrasive wear
A mix of metal, glass and plastic both abrades blade edges and subjects them to impact.
Uncontrolled loading
Unexpected hard objects increase the risk of cracking in hard but brittle overlays.
Loss of geometry
As blade and shaft profiles wear, cutting efficiency drops and energy consumption rises.
Which Part, Which Problem, Which Process?
| Part / equipment | Typical damage | Process considered |
|---|---|---|
| Shredder shafts and blades | Edge wear, loss of profile | Hardfacing and geometry restoration |
| Bag opener shafts and blades | Wear, loss of dimensions | Refurbishment by weld overlay and hardfacing |
| Granulator blades | Cutting edge wear | Hardfacing, resharpening |
| Screw conveyors and screens | Abrasive wear | PTA or hardfacing |
The process for each part is finalised through engineering assessment of its operating conditions, base material and damage condition. At our Ankara facility, application and final grinding are carried out in a single workflow.
Read Before You Decide
About Recycling and Waste Processing
Can shredder blades be refurbished by hardfacing?
If the blade base material and wear condition allow, the cutting edge profile is rebuilt by hardfacing. The overlay alloy is selected according to the impact level.
Which alloy is preferred under impact conditions?
Where impact and wear occur together, high-toughness cobalt- or iron-based alloys are considered; Stellite grades are compared in our guide.
Can long shafts be processed?
Robotic coating is possible up to 7 metres, and machining up to 4 metres in length and 1,250 mm in diameter; part dimensions are assessed at the quotation stage.
Have a Project in the Recycling Industry?
Send us the technical details of your part and we will prepare a quote with an engineering assessment within 24–48 hours.