Four Shaft Shredder Machine for Metal Recycling

An industrial shredder is a heavy-duty machine that uses rotating shafts fitted with hardened steel knives to tear, cut and size-reduce bulky waste — including scrap metal, end-of-life vehicles, plastics, wood, tires, e-waste and MSW — into uniform fragments ready for downstream sorting, recycling or energy recovery.

Material is fed into the cutting chamber, gripped by the slow-speed, high-torque rotors and shredded between fixed and moving knives at 15–35 rpm. A bottom screen (on single-shaft and granulator models) controls final output size from 20 mm to 300 mm, while four-shaft shredders deliver a precise, pre-set particle size without a screen.

ARZIR shredders handle virtually every recyclable and bulky waste stream, including:

• Scrap metal — steel drums, light gauge sheet, aluminium profiles, copper cable, UBC cans
• End-of-life vehicles (ELVs), car bodies, white goods and e-waste
• Tires — passenger, truck and OTR tires (whole or pre-cut)
• Plastics — HDPE drums, PP lump, plastic film, PET bottles, big bags
• Wood waste — pallets, branches, stumps, demolition wood and MDF
• MSW, RDF/SRF, paper, textiles, mattresses, hazardous medical waste and confidential documents.

Capacity depends on shredder type, material density and target output size. Typical throughput is:

• Compact dual-shaft shredders (D-600 / D-800): 0.5–3 t/h, ideal for small recyclers, e-waste and documents
• Mid-size dual / four-shaft shredders (D-1200 / Q-1500): 3–10 t/h for plastics, tires, wood and light metal
• Heavy-duty single-shaft & metal shredders (S-2000 / M-3000): 10–60 t/h for ELVs, white goods, HMS and large MRFs
• Auto / scrap mega-shredders (M-6000 / M-8000): 60–200 t/h for shredding plants and steel mills.

All models support continuous 24/7 operation with PLC control, auto-reverse and intelligent load management.

Every ARZIR shredder complies with CE / ISO safety standards and is equipped with:

• Reinforced steel guarding around the cutting chamber and feeding hopper
• Emergency stop buttons at the operator panel, ground level and feeding side
• Automatic load-sensing, reverse and re-feed logic to prevent jamming and motor burnout
• Hydraulic / electric overload protection on rotor shafts and gearbox
• Interlocked maintenance doors and lockout-tagout (LOTO) provisions
• Optional fire & explosion suppression system (N₂ / CO₂) for tires, plastics, lithium batteries and ELV applications
• Bearing-temperature, oil-level and motor-overload monitoring with audible alarms.

Standard lead time is 60–90 days for compact dual-shaft shredders, 90–150 days for mid-size four-shaft and single-shaft shredders, and 6–9 months for heavy-duty metal / auto shredders with feeding conveyors, magnetic separators, eddy-current separators and de-dusting systems.

All ARZIR shredders come with a 2-year warranty on the main frame, gearbox and rotor shafts, plus lifetime technical support and a free supply of critical wear parts (knives, screens, hammers, side cutters) during the first year.

ARZIR offers a complete range of industrial shredders to match every throughput and application:

• Dual-shaft shredders (D-600 to D-2000) — versatile, for plastics, wood, e-waste, light metal and MSW
• Four-shaft shredders (Q-1000 to Q-1500) — precise output size for tires, cables, hazardous and confidential waste
• Single-shaft shredders (S-1000 to S-2500) — screen-controlled, for RDF/SRF, plastics, paper and post-shred refinement
• Heavy-duty metal / auto shredders (M-3000 to M-8000) — hammer-mill type, for ELVs, white goods and HMS
• Tire / cable / wood pre-shredders and granulators for specific recycling lines
• Mobile / track-mounted shredders for on-site demolition, C&D waste and forestry.

ARZIR shredders are powered by 2 × 22 kW up to 2 × 800 kW electric or diesel-hydraulic drives, with rotor diameters from Ø300 mm to Ø1,200 mm and cutting chamber widths from 600 mm to 3,000 mm.

Output particle size is fully adjustable: 50–300 mm for dual-shaft, 20–80 mm for four-shaft with screen, 10–50 mm for single-shaft with replaceable screen, and 100–250 mm fist-size fragments for heavy-duty metal shredders — matching the requirements of downstream pelletizers, washing lines, EAF furnaces and RDF/SRF plants.

Shredding turns bulky, irregular waste into clean, uniform and free-flowing fragments ready for separation and resale. Key benefits include:

• Up to 80% volume reduction — far lower storage and transport cost
• Liberation of mixed materials (metal / plastic / rubber) for downstream magnetic, eddy-current and density sorting
• Higher resale value — shredded auto scrap commands premium "shredded HMS" prices vs. unprocessed ELVs
• Uniform particle size for safe and efficient EAF / induction furnace and RDF/SRF feeding
• Secure destruction of confidential documents, hard drives and branded products
• Short payback period — typically 12–30 months.

ARZIR shredders are controlled by Siemens S7-1200 / S7-1500 PLC with a 10"–15" industrial HMI touchscreen, supporting fully automatic, semi-automatic and manual modes with multi-language interface (EN / ES / FR / RU / AR).

Standard intelligent features include auto-forward / reverse / re-feed logic, motor current and torque monitoring, and adaptive feeding control. Optional upgrades include remote IoT diagnostics, production data logging, knife-wear monitoring, OEE / energy dashboards and integration with upstream grapple loaders, conveyors, metal detectors and downstream magnetic, eddy-current and air separators.

Yes. ARZIR offers full turnkey service including site evaluation, plant layout design, foundation drawings, on-site installation, commissioning, operator training and production tuning by senior engineers.

Our after-sales network covers 100+ countries, with multilingual technical support, 24/7 remote diagnostics, fast spare-parts delivery worldwide (knives, screens, hammers, bearings, seals) and an optional on-site service contract for heavy-duty metal shredders and complete shredding lines.