ZL-PC700 Production Waste Shredder 22kW 900kg/h Industrial

ZL-PC700 Production Waste Shredder 22kW 900kg/h Industrial Overview

Production-line plastic scrap (sprues, runners, off-spec products, start-up waste) is the cleanest and most valuable scrap stream. The ZL-PC700 Production Waste Shredder integrates directly into injection molding, blow molding, and extrusion lines, processing scrap at 900 kg/h for closed-loop in-plant recycling.

Quick Specs

In-Line Integration with Injection Molding Lines

The ZL-PC700 Production Waste Shredder mounts directly adjacent to injection molding machines, with the feed opening accepting sprues and runners as they fall from the molding machine or robot arm. A takeaway conveyor (3-meter length, integrated with the feed opening) carries finished chips to a central collection bin or directly back into the molding machine hopper.

For a molding cell running 8 hours/day producing 60 kg/h of sprue and runner scrap, the ZL-PC700 processes all 60 kg/h continuously with 50% capacity in reserve. The integration cost (USD 1,800 for the takeaway conveyor assembly) is recovered in the first 6 hours of closed-loop operation.

Closed-Loop 4-6 Cycle Material Science

Production scrap processed through the ZL-PC700 retains its original material properties through 4-6 closed-loop cycles before molecular weight degradation requires blending with virgin resin. Each cycle of re-extrusion reduces the polymer molecular weight by 2-5% (measured as Melt Flow Index increase), affecting mechanical properties.

For plants running 100% closed-loop production scrap, the typical cycle count is 4-6 before the material must be blended with 30-50% virgin resin to maintain mechanical specifications. Plants running 50% scrap + 50% virgin blend maintain stable material properties indefinitely. The ZL-PC700 with 8 mm screen output produces chips suitable for direct re-extrusion without intermediate granulation.

Off-Spec Product Recycling: Quality Control Stream

Off-spec products (parts that fail quality inspection) are a production waste stream distinct from sprues and runners. The ZL-PC700 Production Waste Shredder processes off-spec parts at the same throughput (900 kg/h) but may require color sorting if the off-spec stream includes multiple colors or materials.

For plants running quality inspection, the typical off-spec rate is 2-5% of total production. For a molding line producing 1,000 kg/day of finished parts at 3% off-spec rate, the ZL-PC700 processes 30 kg/day of off-spec material. This is below the machine's capacity, so the ZL-PC700 can serve multiple molding lines (typically 3-5 lines per machine) from a central location.

Start-Up Scrap and Shutdown Waste

Injection molding line start-up produces 50-200 kg of off-spec material before production parameters stabilize. This start-up scrap is typically the same material as production (no color change) and processes at full ZL-PC700 throughput (900 kg/h). Shutdown waste (purging material, color changeover material) is more variable and may require material identification before shredding.

For plants running frequent color changeovers (typically 2-4 color changes per day in consumer products manufacturing), the ZL-PC700 with quick-change screen (USD 280 upgrade) reduces screen change time from 15 minutes to 3 minutes. This enables color-sorted processing of start-up and shutdown scrap without cross-contamination.

Production Line ROI: 3-6 Month Payback

The ZL-PC700 Production Waste Shredder typical ROI for in-line integration with injection molding lines: 900 kg/h throughput x 8 hours/day x 250 days/year = 1,800 tonnes/year of production scrap processed. At virgin resin cost of USD 1,200/tonne and recovered resin cost of USD 200/tonne (electricity + labor), the savings are USD 1,000/tonne x 1,800 tonnes = USD 1.8 million annually.

Capital cost of the ZL-PC700 with integration conveyor: USD 2,300 + USD 1,800 = USD 4,100. Payback period: 4,100 / 1,800,000 = 0.23% of annual savings, or approximately 2.7 months at continuous operation. This makes the ZL-PC700 Production Waste Shredder one of the fastest-payback capital investments in plastics manufacturing.

FAQ for Production Waste Shredder Buyers

Q: How is the ZL-PC700 integrated with injection molding machines?

Standard integration: takeaway conveyor (3-meter length) connects the shredder feed opening to the molding machine discharge chute. Optional integration: robotic arm picks sprues from the mold and places them in the shredder feed. Both methods process 60-100 kg/h per molding machine.

Q: What is the maximum throughput per molding machine?

Typically 80-100 kg/h per injection molding machine for sprue and runner scrap. For larger machines (500+ ton clamping force), throughput can reach 150-200 kg/h. The ZL-PC700 capacity (900 kg/h) supports 5-10 injection molding machines per shredder.

Q: Can the machine process different colors without cross-contamination?

Yes, with the optional quick-change screen (USD 280) and color-sorting conveyor (USD 1,200). For high-frequency color changeover operations, color sorting is recommended to maintain material value.

Q: What is the difference between in-line and batch processing?

In-line processing: shredder integrated with the molding machine, processing scrap as it is generated. Higher capital cost (conveyor integration) but lower labor cost and higher material value (less contamination). Batch processing: scrap collected and shredded periodically. Lower capital cost but requires labor for collection and loses some material value due to contamination during collection.

Q: How does the ZL-PC700 handle PVC vs PP vs ABS scrap differently?

PVC scrap generates more dust (requires dust collection). PP scrap is softer and may stick to chamber walls at high temperatures (the ZL-PC700 thermal management prevents this). ABS scrap is well-behaved across all operating conditions. Throughput varies by 10-15% across materials.