03 — Die / Mold System
Precision Wastepaper Baling Die Mold Fixture Engineering
This heavy-duty wastepaper baling chamber features wear-resistant alloy steel liner plates, multi-channel wire strap tying slots, and integrated hydraulic bale ejection mechanisms. Engineered for 630-ton hydraulic compaction, it provides extreme volume reduction, suppresses paper springback, and enables rapid manual or automated bale binding.
Use Case
The wastepaper baling chamber and fixture system integrates into 630-ton four-column hydraulic presses to compact loose OCC, newsprint, and paper mill residues into high-density bales. Integrated strap tying channels allow operators to bind bales under full hydraulic hold, facilitating efficient storage, transport, and repulping.
Technical Specifications (Tooling)
Die Type
- Heavy duty compaction chamber mold frame assembly with integrated wire and strap tying slots
- Rigid rectangular baling box structure with hydraulic door locks and automatic bale ejection pins
Die Materials
- High strength NM400 wear resistant alloy steel inner chamber liner plates for maximum abrasion protection
- Heavy duty Hardox 450 steel compaction platen face plates engineered to resist constant paper friction
Tool Configuration & Construction
- Precision CNC machined heavy steel plate welded chamber construction designed for high density volume reduction
- Reinforced structural steel outer framework engineered to withstand lateral paper expansion pressures up to 630 tons
Key Tooling Features
- Precision aligned horizontal and vertical strap tying channels enabling rapid manual or automatic wire binding
- High capacity rear hydraulic ejector ram unit pushing completed paper bales smoothly out of the chamber
Alignment Accuracy
- Moving upper platen slide to inner chamber wall guide clearance deviation kept strictly under a limit of 0.015 mm
- Compaction platen parallelism variance across active chamber area restricted within a tolerance of 0.015 mm
Process Materials
- Old Corrugated Containers OCC double lined kraft box cuttings ONP newsprint and sorted office paper SOP
- Paper mill pulper residues rejects cardboards and wet or dry industrial paper stock scrap
Surface Finish
- Inner chamber wear liner surfaces fine ground and anti rust coated down to a surface roughness of Ra 0.80 microns
- Friction reducing polished platen face plates ensuring smooth paper compression and easy bale extraction
Tool Life
- Expected operational span of 150000 baling compression cycles before requiring inner liner plate replacement
- Total structural steel chamber frame and base assembly lifespan capacity reaching 500000 production cycles before major rebuilds
