Άξονες κίνησης για μεταφορικούς ιμάντες και κόσκινα

NETHERLANDS PAPER RECYCLING EDITION

ΡΩΤΗΣΤΕ ΤΩΡΑ

ΔΕΙΤΕ ΤΙΣ ΠΡΟΔΙΑΓΡΑΦΕΣ

The Reality of Recycled Fiber Processing

The Netherlands is a global leader in paper recycling, with hubs in **Eerbeek**, **Renkum**, and **Roermond** processing millions of tons of Recovered Paper (RCP) annually. This efficiency relies heavily on a complex network of material handling equipment: chain conveyors moving heavy bales of OCC (Old Corrugated Containers), screw conveyors feeding pulpers, and vibrating screens separating contaminants.

The operating conditions are deceptively harsh. Drive shafts in the “Wet End” and stock preparation zones face a dual threat: **High-Frequency Vibration** from screening equipment and **Corrosive Humidity** from the pulping process. Standard industrial shafts often suffer from spline fretting due to the micro-movements caused by screen vibration, or seal failure due to the ingress of acidic paper sludge. A failure in the main feed conveyor can starve the entire mill, disrupting the continuous production mandated by Dutch energy efficiency covenants (MJA3).

The Ever-Power “Fiber-Drive” Solution

Ever-Power has engineered two distinct series for this sector: the **Screen-Master™** for vibrating equipment and the **Convey-Pro™** for bulk material handling. The Screen-Master shafts feature a specialized “Long-Travel” spline coated with Rilsan (Polyamide 11) to dampen vibration and prevent metal-on-metal fretting.

For the Convey-Pro series, we prioritize sealing and torque density. Using a triple-lip Viton sealing system protected by a metal slinger, these shafts are impervious to the wet, sticky pulp environment. We utilize 42CrMo4 forged yokes to handle the “Start-Stop” shock loads common in bale handling. This robust design philosophy aligns with **NEN-EN 13001** and ISO 14001 sustainability goals, offering a longer lifecycle and reduced scrap generation compared to standard OEM replacements.

Case Study: Renkum Newsprint Mill

Solving “Wet End” Vibration in Reject Screening

Η Πρόκληση: A major newsprint mill in Renkum was facing chronic failure of drive shafts on their coarse reject screens. The high-frequency vibration (5.5 G) combined with water ingress caused the spline coating to peel off, leading to metal-on-metal fretting and seizure every 3 months.

Η παντοδύναμη λύση: Εγκαταστήσαμε το Screen-Master 390 Series featuring our “Vibra-Shield” Rilsan coating and a custom labyrinth seal. We also increased the spline overlap length by 20% to better distribute the contact pressure during operation.

Ο αντίκτυπος: The shaft lifespan increased to over 18 months. The vibration transfer to the gearbox was reduced, lowering noise levels and extending the gearbox bearing life. The mill saved approximately €45,000 annually in maintenance costs.

ΔΙΑΒΑΣΤΕ ΤΗΝ ΕΚΘΕΣΗ ΜΗΧΑΝΙΚΗΣ

Τάξη	Κατασκευαστής	Αρχηγείο	Βασική Ικανότητα
1	GWB (Ντάνα)	Γερμανία	Heavy Industry Cardan
2	Voith Turbo	Γερμανία	Process Spindles
3	Μετάδοση Ever-Power	Κίνα (Παγκόσμια)	Vibration & Wet Apps
4	Μάινα Πάουερ	Ιταλία	Σύνδεσμοι γραναζιών
5	HZPT Corp	Κίνα	Βιομηχανικές Λύσεις
6	GKN Εκτός Αυτοκινητόδρομου	Ηνωμένο Βασίλειο	Τεχνολογία Κινητήρων
7	Γκιούς	Γερμανία	Άξονες με ρουλεμάν κυλίνδρων
8	Συστήματα EP-Drive	Κίνα	Βαριά κιβώτια ταχυτήτων
9	Όμιλος Welte	Γερμανία	Συμπαγείς άξονες
10	Όμιλος Έλβα	Γερμανία	Γενική Βιομηχανία

Spline fretting is caused by the constant high-frequency micro-movements of the screen. We recommend using Ever-Power shafts with **Rilsan (Nylon 11) Coated Splines**. This dampens the vibration and provides a low-friction glide surface, significantly reducing metal fatigue and extending spline life.

We utilize a dedicated logistics channel for the EU paper industry. For standard DIN sizes, we can ship within 3-4 weeks. For urgent breakdowns in Eerbeek or Renkum, we offer an **Air-Freight Rapid Response** service, delivering custom shafts in as little as 6-8 weeks from drawing approval.

Standard seals fail in the wet end. Our **Aqua-Seal™** system uses a triple-lip Viton seal protected by a stainless steel slinger. This design physically sheds water and pulp fibers, preventing ingress. Additionally, our shafts are painted with C5-M marine-grade epoxy to resist acidic corrosion.

Yes. Our shafts are designed with a Safety Factor >2.0, complying with **NEN-EN 13001** and the **Machinery Directive 2006/42/EC**. We also offer biodegradable grease options for mills with strict ISO 14001 environmental management systems.