Equipment
Heavy-duty low-speed high-torque industrial plastic shredders (single-shaft with hydraulic ram and screen, or twin-shaft counter-rotating shear) for oversized purgings, hollow drums, pipes, and baled films.
Reference values for the model or models named above. The confirmed configuration, the capacity basis and the scope of supply are stated in the quotation and the drawings.
Overview
Performs heavy-duty low-speed primary shredding of thick polymer purgings, hollow drums, pipes, and baled films into uniform coarse fragments (single-shaft) or torn strips (twin-shaft).
The Plastic Shredder series delivers heavy-duty, low-speed, high-torque primary size reduction for oversized, dense, and bulky polymer waste that cannot be processed directly by conventional high-speed granulators. Operating at controlled rotational speeds (typically 60 to 100 rpm on single-shaft units, and 15 to 35 rpm on twin-shaft units) with tremendous cutting torque, our shredders cleanly shear through solid extruder purgings, thick-walled pipes, 200-liter drums, and tightly baled films without blade stalling, high-speed impact noise, or excessive dust generation.
To address diverse physical scrap geometries and processing requirements, the series is engineered around two distinct mechanical architectures:
Designed primarily for dense solids, solid lumps, and thick-walled scrap. Features a solid alloy steel rotor fitted with 4-way indexable concave cutter knives, an intelligent proportional hydraulic pusher ram, and a hardened-tooth-surface helical gear reducer. The horizontal hydraulic ram continuously advances bulky scrap into the cutting rotor under load-sensing control. Discharged scrap passes through an interchangeable bottom sizing screen (typically 30 mm to 60 mm), guaranteeing uniform fragment sizing ideal for direct infeed into secondary granulators or wash lines.
Engineered for high-volume hollow containers, voluminous moldings, and bulky flexible scrap. Utilizes two counter-rotating hexagonal shafts equipped with interleaved multi-claw alloy cutter discs. Powered by independent dual motors and heavy-duty gearboxes, the twin shafts grab large hollow bodies—such as 200L chemical drums, 1,000L IBC totes, automotive bumpers, and film bales—pulling them into the cutting chamber and tearing them into coarse strips (40 mm to 100 mm) without requiring a hydraulic ram or discharge screen, completely eliminating screen binding and clogging.
Both single-shaft and twin-shaft models integrate smart Siemens PLC automation with continuous current and pressure monitoring. Upon encountering unyielding foreign obstructions or sudden torque surges, the drive automatically reverses rotation and modulates material feed to clear the cutting zone, ensuring safe, continuous, and jam-free industrial operation.
Single-shaft machines
Heavy-duty double-row spherical roller bearings housed in split cast-steel pillow blocks positioned entirely outside the cutting chamber. Multi-channel labyrinth grease seals prevent polymer dust, moisture, and fine debris from migrating into the bearing cavities.
Siemens PLC architecture paired with an industrial touchscreen HMI. Monitors drive motor current, hydraulic pressure, and thermal thresholds in real time, automatically triggering rotor reversal and ram modulation upon foreign obstruction or torque overload.
Equipped with a solid CNC-machined alloy steel rotor carrying indexable concave square blades (DC53 / D2 tool steel) mounted in recessed knife holders. Each blade features four usable cutting edges that can be indexed 90° upon wear, slashing tooling replacement costs and maintenance downtime.
Precision-machined bed blades bolted along the lower ledge of the cutting chamber, forming the fixed edge that the rotor's indexable cutters shear against, so single-shaft material is cut between a moving and a fixed edge instead of being torn loose in an open chamber. Each counter-knife's cutting edge is reversible and can be re-ground, and the setting that matters in service is the shear gap to the rotor knives: once that gap opens past 1.5–2.0 mm the edge is inverted or re-ground and the gap reset. Inspect them together with the rotor knives, at about 1,500 operating hours.
The single-shaft machine is driven through a hardened-tooth-surface helical gear reducer, the standard drive for a screen-controlled rotor that turns slowly at high torque. It mounts on a torque arm with integrated shock absorption rather than a rigid foot, and the shrink-disc connection carries the rotor shaft, so the shock of an unyielding purging is damped before it reaches the gear teeth.
The pusher carriage travels on horizontal guides and advances the charge into the rotor under hydraulic pressure, with the oil supply held in a self-contained power station on the machine rather than a separate hydraulic room. The pack carries its own tank, pump, filtration and pressure monitoring, and the PLC reads that pressure next to the main drive current, so the ram responds to what the material is doing. On site the only work is filling the tank with ISO VG 46/68 hydraulic oil.
A sizing screen mounted below the rotor sets the largest fragment that leaves the machine: Ø30 mm holes as standard, with 60 mm and 80 mm screens available on request. Working against the rotor's cutting arc, it holds oversize pieces in the chamber until they pass through, so the discharge size stays consistent for the granulator, wash line or conveying stage that follows, and a coarser or finer output is set simply by changing the screen. Fitted on single-shaft units; twin-shaft machines run without a screen.
The single-shaft machine carries its own power station on the frame — tank, high-pressure pump, filtration, proportional valve manifold and pressure sensors — so the shredder needs no separate hydraulic room or plant-wide oil supply. The ram is driven proportionally rather than switched on and off, which keeps material moving into the rotor without shock-loading the cylinder. The pusher motor is sized with the model, from 3 kW to 11 kW, and the tank takes anti-wear ISO VG 46 or VG 68 oil.
Twin-shaft machines
Dual counter-rotating shafts equipped with interleaved multi-claw hook blades fabricated from high-strength alloy tool steel. Operates without a screen to deliver exceptional grabbing torque and continuous tear shearing of high-volume hollow containers, drums, and baled materials.
Where the feed runs to oversized, heavy purgings, the twin-shaft drive can be specified with a planetary reduction gearbox in place of the standard helical unit: a planetary stage carries the high-inertia, high-shock loads of large rotor diameters without the frequent motor stalls a lighter drive suffers. The gearbox mounts on a torque arm with integrated shock absorption, and the shrink-disc connection ties it to the shaft, so the jolt of pulling in a full 200 L drum or a film bale is damped before it reaches the reducer.
Material and process
Read the conditions together: a machine is selected for the material and the output, not from its name alone.
Engineered for low-speed, high-torque primary size reduction across plastics recycling plants, compounding operations, blow molding facilities, and industrial manufacturing sites.
Specifically configured to handle challenging rigid and flexible scrap formats through two distinct rotor architectures:
Engineered strictly for primary coarse size reduction; operational boundaries include:
Accepts uncrushed, bulky, and heavy thermoplastic and elastomer industrial scrap, including:
Feed materials may be loaded via forklift batch tip, overhead crane grab, or inclined belt conveyor. Feedstock must be pre-screened to exclude uncrushable tramp metal items (railway spikes, solid steel blocks, hardened machine bolts) exceeding cutter shear ratings.
Discharges uniform, coarse shredded plastic fragments (typically 30 mm to 60 mm) through the bottom sizing screen.
Fragments drop onto an inclined transfer conveyor or secondary granulator infeed chute for fine size reduction.
Throughput
Read a figure together with the basis below it: the same machine reaches different numbers on different materials.
800–5000 kg/H
Throughput capacity ranges from 300 kg/h up to 4,000+ kg/h depending on rotor diameter (400 mm to 800 mm), rotor length (600 mm to 2,000 mm), drive motor power (22 kW to 160 kW), and discharge screen hole diameter (20 mm to 80 mm).
Throughput is determined by feedstock bulk density, wall thickness, and material hardness. Thin-walled hollow containers shred rapidly, whereas solid heavy purgings (50–200 kg solid polymer lumps) require sustained hydraulic pusher cycles and heavy-duty low-speed drive motors.
Models
The figures are the reference values entered for each model. The model for your line is confirmed against your material and output before it is quoted.
Scroll the table sideways to read every column →
| Model | Rango de capacidad | Potencia nominal | Dimensiones | Stationary Cutter | Rotary Cutter | Rotation Diameter | Shredder chamber |
|---|---|---|---|---|---|---|---|
| NC-D600 | ≥600 Kg/Hour | 30 kW | 2150×1420×1800 | 4pcs | 40pcs | 300mm | 915×600mm |
| NC-D800 | ≤800 Kg/Hour | 45 kW | 3050×1620×2150 | 4pcs | 56pcs | 355mm | 1350×800mm |
| NC-D1000 | ≤1000 Kg/Hour | 75 kW | 3350×1950×2800 | 4pcs | 72pcs | 400mm | 1450×1000mm |
| NC-D1200 | ≤1500 Kg/Hour | 90 kW | 3350×1950×2800 | 4pcs | 96pcs | 415mm | 1450×1200mm |
Scope of supply
The quotation states the scope for the confirmed configuration; the groups below describe how a supply is normally split.
Installation planning
These are the connections the machine and the line around it have to agree on before the layout is fixed.
Mechanical: Rigid base frame mounted on anti-vibration foundation pads or anchored to reinforced concrete; bottom discharge flange or drop hood aligned with downstream incline conveyor or secondary crusher chute.
Electrical & Automation: Three-phase industrial power supply terminated at the main isolation breaker; auxiliary digital interlocking contacts for coordinated sequence start/stop with upstream infeed conveyors, magnetic separators, and downstream granulators.
Hydraulic & Pneumatic: Self-contained hydraulic power station on single-shaft units; optional compressed air drop (0.5–0.7 MPa) if pneumatic dust extraction or air-actuated safety gates are installed.
The buyer provides a reinforced level concrete foundation capable of handling dynamic shock and vibration loads, main electrical supply cabling routed to the primary isolator switch in the control cabinet, initial anti-wear hydraulic oil filling (ISO VG 46/68) for the power pack (on single-shaft models), and perimeter safety guarding/fencing surrounding the infeed conveyor and shredder hopper.
Spare parts
The parts that wear in normal service, and the spares worth keeping on site. How often a part is replaced depends on the material and the duty the machine runs, so the basis is confirmed for each machine.
Rotate cutter face 90° every 800–1,500 operating hours; replace complete set once all four cutting edges are fully worn or chipped.
Square concave cutting knives mounted on the single-shaft rotor. Direct shear wear component. Keep one complete replacement set (typically 40 to 140 pieces) in plant inventory.
Inspect every 1,500 operating hours; invert cutting edge or grind resharpen when gap to rotor knives exceeds 1.5–2.0 mm.
Precision-machined counter-knives mounted along the lower cutting chamber ledge. Counter-acts rotor cutters.
Inspect every 2,000 hours; replace when screen hole walls elongate or bridge sections show impact cracking.
Alloy steel curved screen basket (30 mm to 60 mm round/hexagonal perforations) defining discharge fragment size.
Replace every 2 to 3 years or immediately if hydraulic oil weeping is observed along the cylinder rod.
High-pressure piston and rod seal assembly for the horizontal material pusher cylinder.
Blades, screens and other normal consumables are outside the standard warranty. How a spare part is identified and ordered is set out under Warranty & Spare Parts.
Selection
Work through what you already know. The rest is settled in the conversation, not before the first message.
Selecting the optimal industrial plastic shredder requires evaluating scrap geometry, wall thickness, target particle sizing, and production logistics:
Request a Quote A model name, a material or a drawing is enough to start.
Photos and videos
Indíquenos el material, el proceso y el resultado que necesita lograr. Los detalles técnicos se pueden completar más adelante junto con nuestro equipo de ventas.
