The HuaZhi 2000 Type Twin-Shaft Metal Shredder is our flagship ultra-heavy industrial twin-shaft metal shredding machine — engineered without compromise for the most demanding large-scale metal recycling operations on Earth. This machine represents the pinnacle of HuaZhi’s twin-shaft engineering: maximum chamber volume, maximum motor power, maximum throughput, and maximum durability for ²⁴⁄₇ continuous production in the harshest industrial environments.

With twin 75–100 kW motors delivering a combined 150–200 kW of power, an expansive 2,000 × 1,400 mm cutting chamber, and a 35–50 ton hydraulic pusher, the 2000 Type processes a commanding 4,000–10,000 kg/h — handling 80–200 metric tons of metal per day from the most challenging industrial sources including steel mills, shipbreaking yards, major infrastructure demolition, and large-scale manufacturing plants.

This is not a scaled-up version of smaller machines — the 2000 Type is a purpose-designed platform with oversized shafts (Φ 160–200 mm), extra-heavy main bearings (Φ 200–240 mm split cartridge), reinforced chamber walls (20–25 mm Q345B + Hardox 500 wear lining), and a frame engineered for decades of peak-load industrial operation.

Key Features

Ultra-Heavy Twin-Shaft Counter-Rotating Shearing Technology

Two oversized counter-rotating shafts at 8–20 rpm generate extraordinary interlocking shearing and tearing force. The ultra-low-RPM, maximum-torque design chews through the thickest structural steel, the largest ship sections, and the densest industrial scrap — with significantly lower noise, vibration, and dust than any hammer mill in the same capacity class.

Extra-Heavy Hexagonal Knife Carrier System (18–24 Carriers per Shaft)

Each shaft is equipped with 18–24 oversized hexagonal knife carriers — a heavier, larger-format carrier design than our standard industrial range. Each carrier accepts 4–6 heavy-duty tool steel blades with 4 indexed cutting edges — providing up to 432 total cutting edges on the machine. The sealed bearing design prevents contaminant ingress, and individual carrier removal for blade replacement takes approximately 60–90 minutes.

Extra-Robust Frame — Designed for Decades of ²⁴⁄₇ Operation

The main frame and cutting chamber are fabricated from extra-thick Q345B high-strength structural steel (20–25 mm) with full CNC-machined bearing housings and precision-aligned shaft mounts. All critical chamber wear surfaces are lined with Hardox 500 bolted wear plates — the standard for mining and quarrying equipment. The entire machine is engineered for a 20+ year operational lifespan under continuous peak-load industrial use.

Dual 75–100 kW Motor Drive (Total 150–200 kW)

Two industrial-grade 75–100 kW motors drive the shafts through heavy-duty planetary gearboxes with fully synchronized output. The dual-motor configuration delivers maximum starting torque for the densest material loads. Operational redundancy ensures the machine continues at reduced capacity if one motor requires service — critical for steel mills and continuous-process operations where unplanned stoppages cost thousands per hour.

Ultra-Heavy Hydraulic Pusher Ram (35–50 Tons Thrust)

A heavy-duty dual-cylinder hydraulic system drives the material feed ram with 35–50 tons of continuous thrust force — feeding the largest and heaviest scrap pieces, including whole vehicle bodies, large structural sections, and dense industrial pressings, without manual intervention. Proportional hydraulic valves adjust thrust force in real-time based on material resistance.

Oversized Magnetic Separation System (Standard)

An 1,200 mm wide high-gauss magnetic drum separator is standard on the 2000 Type — extracting ferrous metal from the shredded output stream at > 99.5% separation efficiency, even at the highest throughput rates. Produces clean, furnace-ready metal chips at up to 10,000 kg/h, suitable for direct electric arc furnace (EAF) or induction furnace charging.

Advanced Siemens S7 PLC + 12” HMI Touchscreen Control

Siemens S7 series PLC with 12” industrial HMI touchscreen. Features include: real-time motor current monitoring with adaptive overload protection, jam detection with multi-stage auto-reverse protocol, integrated production counter with shift/day/total registers, fault event logging with timestamp, optional 4G/WiFi remote monitoring for real-time production dashboards, predictive maintenance alerts, and OEM remote diagnostic support.

Heavy-Duty Acoustic Enclosure with Maximum Insulation (Standard)

The complete machine ships with a heavy-duty acoustic enclosure as standard equipment. The 75 mm mineral wool insulated panels reduce operational noise to ≤ 83 dB — the practical maximum for a machine of this capacity. All enclosure panels are hinged with rapid-release fasteners for maintenance access. Optional double-layer 100 mm acoustic panels reduce noise to ≤ 76 dB for operations in noise-regulated zones.

Oversized Split Cartridge Bearing System — Built for 20+ Year Lifespan

Extra-large split cartridge main bearings (SKF/TIMKEN equivalent, Φ 200–240 mm) are sized for the operational demands of a machine running 8,000+ hours per year. Bearing replacement is possible without shaft removal — reducing what would be a 5-day major service on compe*****s’ machines to a 6–10 hour operation on the 2000 Type.

Applicable Materials