Your PS Recycling Line Doesn't Have to Be a Gamble — Here's the Proof
We just ran our 500 kg/h PS Flakes Pelletizing Line end-to-end — dual-stage single-screw extrusion, water-ring pelletizing. 6 hours non-stop. Zero downtime. Pellets passed every quality check.
If you're sourcing recycling machinery from China, you know the drill:
● Quoted specs look great on paper.
● The trial video shows a different machine.
● You fly over, and the line can't run 2 hours without clogging.
● You spend months on-site fixing what should have worked from day one.

That's not how Sevenstars Machinery operates.
The Trial: Real Material. Real Results.
We didn't run virgin pellets for show. We fed post-consumer PS appliance housing flakes — the exact type of dirty, mixed, high-moisture feedstock your plant handles every day.
The entire line — feeding → dual-stage extrusion → hydraulic screen filtration → water-ring pelletizing → dewatering → packing — ran as a single integrated system.
No material bridging in the hopper. No screen blinding. No pellet tails. No moisture issues. No surprises.

Why This Matters If You're Buying
1. Dual-stage extruder: handles the mess your feedstock throws at it.
Most single-stage extruders struggle when moisture or contamination spikes. Ours doesn't. The first stage vents volatiles before the melt reaches the filtration zone. Result: stable melt quality regardless of input variation. No more praying your feedstock is dry enough today.
2. Water-ring pelletizing: better pellets, less fines.
Strand pelletizing on brittle PS is a headache — broken strands, tails, excessive powder. Our water-ring die-face hot-cutting system shapes pellets instantly and cools them in a controlled water ring. The result? Round, uniform pellets with drastically lower fines. Downstream processors notice the difference.
3. International components from end to end.
Schneider electrics. Omron controls. No no-name parts that fail in six months with no replacement available. Wherever your factory is located, you can source spares locally. This is not a cost-cutting choice — it's a reliability choice.
4. Turnkey means turnkey.
Electrical cabinet, dual-stage extruder, screen changer, water-ring pelletizer, centrifuge, vibrating screen — all pre-assembled and pre-tested at our factory. You connect utilities and start producing. No sourcing parts from six different suppliers. No finger-pointing when things don't integrate.

What Our Customers Actually Need
We've shipped pelletizing lines to 30+ countries. The #1 feedback isn't about a specific feature — it's about reliability.
A line that runs 24 hours without babysitting. Pellets that meet spec every single batch. Support that answers WhatsApp in minutes, not days.
That's the standard we hold every line to — including this one.
See the Line in Action
Full trial video, pellet samples, and detailed spec sheets are ready.
Interested in adding 500 kg/h of PS pelletizing capacity?
→ DM me or comment "LINE" below, and I'll send you the full trial report. → Visit our factory in China — bring your own material, watch it run live.


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