Plastic shredders

Recycling secondary polymer materials today is not merely an eco-friendly trend, but one of the most profitable sectors in modern manufacturing and waste processing. Any enterprise working with plastics — from compact injection moulding workshops to high-capacity production lines for packaging, containers, pipes, and profiles — regularly faces accumulation of technological scrap. Defective parts, thick sprues and runners, start-up purges, trim offcuts, and worn plastic containers clutter floor space and freeze operating capital. Implementing robust granulating machinery allows companies to return up to 100% of internal plastic scrap directly back into the production cycle or sell it profitably as clean, reusable regrind.

Professional plastic shredders and polymer granulators of the GRINDEX series from the leading Ukrainian equipment manufacturer TechnoMashStroy are engineered for rapid, energy-efficient, and dependable reduction of diverse plastics into a uniform granulate. Our heavy-duty machines turn bulky plastic waste into premium regrind ready for pelletizing, extrusion, or direct feeding into injection moulding machines (IMM).

GRINDEX Plastic Granulator Model Range: Reliable Solutions for Any Production Scale

The design and engineering division of TechnoMashStroy developed the GRINDEX series of rotary granulators specifically adapted to demanding industrial waste-processing requirements. Depending on polymer types, wall thickness, and targeted hourly capacity, the lineup offers tailored solutions for specific production requirements:

GRINDEX-4 Plastic Shredder: Compact Efficiency for Small Workshops

The compact GRINDEX-4 granulator is driven by a 4 kW electric motor and optimized for crushing thin-walled products, lightweight scrap, bottles, flasks, sprues, and small molded parts. Its space-saving footprint enables beside-the-press placement directly next to injection moulding or blow moulding machinery, establishing a closed-loop recycling cycle without internal factory logistics expenses.

GRINDEX-7 Polymer Crusher: Versatile Medium-Capacity Machine

The GRINDEX-7 modification with a 7.5 kW motor is an all-around workhorse for facilities with medium processing throughput. The machine processes plastic crates, canisters, bottles, medium-diameter pipes, profiles, and thin sheets. A precision-balanced rotor minimizes dynamic stress on heavy-duty bearing assemblies, guaranteeing smooth operation and low operational noise levels.

High-Performance GRINDEX-11 and GRINDEX-15 Granulators: Tough & Thick-Walled Plastic Processing

Flagship industrial shredders GRINDEX-11 and GRINDEX-15 are engineered for intensive 24/7 duty cycles at secondary recycling facilities and major manufacturing plants. Powered by 11 kW and 15 kW motors, featuring solid welded rotors and heavy-duty knife seats, these granulators easily crush thick solid purges, heavy-wall pipes, plastic pallets, dense blocks, and engineering polymers.

Engineering Design and Operating Principles of GRINDEX Granulators

Rotary plastic crushers manufactured by TechnoMashStroy are built with extended structural margins to withstand long-term shock impacts. Technological efficiency is driven by the following components:

• Wear-Resistant Cutting Blades: Rotor (rotary) and bed (stationary) blades are crafted from high-grade alloyed tool steel subjected to multistage heat treatment to reach 55–58 HRC hardness. The cutting geometry creates a progressive scissor-cut action that lowers power consumption, prevents plastic overheating, and prevents rotor stall.
• Interchangeable Sizing Screens: Output fraction size is determined by the hole diameter of the installed perforated screen (standard apertures from 6 to 12 mm). Fast-clamping modular screen fixtures allow swift screen swaps when changing raw material batches or adjusting regrind specs for pelletizing lines.
• Safety Infeed Hopper with Anti-Flyback Curtains: The feed hopper geometry features internal protective deflectors and curtains that eliminate material ejection and flying fragments during operation, ensuring operator safety.
• Rigid Vibration-Dampened Frame: The heavy welded structural base stabilizes the machine, absorbs dynamic vibrations during hard scrap processing, and maintains precise clearance between rotary and stationary knives.
• Integrated Electrical Drive Protection: The control cabinet incorporates thermal overload relays, circuit breakers, and mechanical safety limit switches that inhibit motor operation while the cutting chamber is open for maintenance or knife sharpening.

Which Polymers Can TechnoMashStroy Granulators Process?

Adjustable knife gaps and interchangeable sizing screens allow GRINDEX machines to crush all mainstream commercial thermoplastic polymers:

• PET (PET / PETE): Beverage bottles, chemical packaging containers, blister packs, and injection preforms.
• HDPE & LDPE: Fuel and lube canisters, plastic drums, bottle caps, shrink films, agricultural stretch wraps, plastic bags, and PE pipe cutoffs.
• Polypropylene (PP): Crates for vegetables, meat, and beverages, storage boxes, disposable dinnerware, big bags, woven sacks, and automotive interior panels.
• PVC (Polyvinyl Chloride): Window profiles, siding panels, floor skirting, cable trunking, pressure pipes, and medical plastic scrap.
• Polystyrene (PS / HIPS): Packaging trays, thermal insulation boards, decorative trims, panels, and advertising sheets.
• ABS & Polyamides (PA): Casings of power tools, home appliances, computer housings, and automotive exterior parts (bumpers, radiator grilles).
• Production Waste: Extrusion start-up lumps, injection moulding runners, film roll edge trims, and thermoforming skeletal waste.

Economic Benefits of Installing a Plastic Granulator in Your Plant

Investing in an industrial polymer granulator from TechnoMashStroy provides measurable economic returns for plastics processors:

1. Substantial Savings on Virgin Resin Purchases: Homogeneous in-house regrind can be blended into virgin material at ratios from 10% to 50% without compromising physical and mechanical specs, slashing finished product cost by 25–40%.
2. 6 to 10-Fold Reduction in Waste Volume: Bulky plastic containers possess low bulk density and take up substantial storage space. Milled regrind minimizes storage footprint, streamlines internal plant logistics, and cuts waste haulage costs.
3. Fast Return on Investment (ROI): Thanks to factory-direct Ukrainian pricing and high virgin resin prices, capital investment payback for GRINDEX units ranges between 2 to 6 months.
4. High Market Value of Processed Flakes: Clean, evenly sorted plastic regrind is widely traded in recycling markets and commands a substantially higher price than loose, uncrushed plastic scrap.

Why Choose a Plastic Shredder from TechnoMashStroy?

TechnoMashStroy is a leading machinery manufacturer with primary production facilities in Cherkasy, Ukraine, successfully supplying processing machinery since 2011. When purchasing polymer shredders directly from our factory, you gain complete commercial and technical backing:

• Factory-Direct Prices: Direct supply eliminates dealer commissions, middlemen markups, and unneeded commercial fees.
• Permanent Stock of Knives and Screens: Replacement knives, sharpening sets, calibrated screens, and bearing spares are maintained in factory inventory for immediate dispatch.
• Official 12-Month Factory Warranty: Full manufacturer warranty coverage, expert engineering support, and dependable post-warranty technical assistance.
• Certified Quality Standards: Every unit complies with strict national DSTU technical regulations and ISO 9001 certified quality control systems.
• Prompt Delivery Options: Reliable freight transport throughout Ukraine, as well as export clearance and delivery across the European Union.

Equip your manufacturing plant with dependable machinery for zero-waste polymer production! To purchase a GRINDEX plastic shredder, calculate custom hourly output for your specific scrap materials, or consult with chief engineers at TechnoMashStroy, submit an inquiry on our official website or contact our sales specialists directly.