Scrap Metal Shredder for Sale: Industrial Double Shaft & Single Shaft Shredding Machines
Direct Factory Prices from China’s Leading Scrap Metal Shredder Manufacturer
As a professional scrap metal shredder manufacturer with over 30 years of experience, HUAXIN provides a full range of heavy-duty industrial metal shredders designed to process car bodies, white goods, steel drums, e-waste, aluminum scrap, copper wire, and mixed industrial scrap. Our machines deliver 1 to 50+ tons per hour of shredding capacity, with motor power from 30kW to 600kW, meeting the needs of scrap yards and metal recyclers worldwide.
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Our Scrap Metal Shredder Products
What is a Scrap Metal Shredder?
A scrap metal shredder is a heavy-duty industrial machine that uses high-torque rotating shafts fitted with hardened alloy steel blades to tear, shear, and reduce bulky scrap metal into smaller, uniform fragments. Unlike shears that cut in a single stroke, a shredder continuously processes material through counter-rotating cutters, producing consistently sized output pieces ideal for downstream separation, transportation, and remelting in steel mills and foundries.
Scrap metal shredders are the core equipment in modern metal recycling lines. They are widely deployed in scrap yards, auto dismantling facilities, e-waste recycling plants, white goods (appliance) recycling centers, steel mills, and municipal solid waste (MSW) processing facilities. By reducing oversized, irregular scrap into compact, uniform fragments, a metal shredder dramatically increases material density, lowers transport costs, and improves the efficiency of magnetic and eddy current separation downstream.
As a professional scrap metal shredder manufacturer, HUAXIN designs and builds industrial shredding systems engineered for 24/7 continuous operation, maximum blade life, and minimum maintenance downtime — delivering the highest possible return on your recycling investment.
Types of Scrap Metal Shredder Machines
2.1. Double Shaft Shredder (Dual Shaft Shredder)
The double shaft shredder is the most widely used scrap metal shredder type worldwide. It features two parallel counter-rotating shafts fitted with interlocking high-alloy steel cutting blades. Material is pulled inward between the two shafts and continuously torn, sheared, and reduced in a low-speed, high-torque cutting action. An automatic overload detection and shaft reverse function prevents jamming without operator intervention.
- ✓ Best for: Car bodies, white goods (appliances), steel drums, aluminum cans, copper wire bundles, e-waste, mixed light-to-medium scrap
- ✓ Motor power: 30kW – 400kW (twin motors)
- ✓ Throughput capacity: 1 – 20 tons/hour
- ✓ Output size: 50 – 300mm (adjustable by blade configuration)
- ✓ Shaft speed: 15 – 80 RPM (low-speed, high-torque)
- ✓ Advantages: Handles mixed and irregular materials, auto anti-jam reverse, low dust and noise, minimal fire risk, easy blade replacement
2.2. Single Shaft Shredder
The single shaft shredder uses one high-torque rotor shaft with multiple cutting knives that work against a fixed counter-knife bed. A hydraulic push ram feeds material into the cutting chamber, and a bottom screen controls the output fragment size. This design excels when uniform, precisely sized output is required — making it the preferred choice for downstream granulation, separation, or RDF production lines.
- ✓ Best for: Aluminum profiles, copper radiators, light ferrous scrap, e-waste (WEEE), metal turnings, plastic-metal composite waste
- ✓ Motor power: 22kW – 200kW
- ✓ Throughput capacity: 0.5 – 10 tons/hour
- ✓ Output size: 30 – 150mm (screen-controlled)
- ✓ Advantages: Uniform output size, precise particle control, lower cost for lighter-duty applications, easy maintenance with fewer moving parts
2.3. Four Shaft Shredder
The four shaft shredder uses two pairs of counter-rotating shafts arranged in upper and lower rows. The upper pair performs primary size reduction while the lower pair further refines the output, delivering a more uniform and finer fragment size in a single pass. This design is ideal for operations requiring tight output size control without a secondary shredding stage.
- ✓ Best for: E-waste (WEEE), mixed metal and plastic composites, confidential material destruction, cable and wire recycling
- ✓ Motor power: 30kW – 400kW (quad motors / planetary gearboxes)
- ✓ Throughput capacity: 0.5 – 6 tons/hour
- ✓ Output size: 20 – 80mm (tighter than double shaft)
- ✓ Advantages: Finest output consistency, minimal over-size pieces, ideal for integrated separation lines, very low noise and vibration
2.4. Pre Shredder (Primary Shredder)
The pre shredder (also called a primary shredder or coarse shredder) is designed as the first-stage size reduction machine in a multi-step recycling line. It accepts large, bulky, and highly irregular scrap input — such as whole car bodies, large appliances, industrial scrap bundles, and oversized metal waste — and reduces them to a manageable intermediate size (200–600mm) for feeding into downstream secondary shredders, granulators, or separation systems. Pre shredders are engineered for maximum infeed opening size, ultra-high torque at very low shaft speeds, and exceptional resistance to unshredable tramp metal without machine damage.
- ✓ Best for: Whole car bodies (ELV), large white goods, industrial scrap bundles, oversized HMS, steel structures, bulky mixed municipal scrap — any large input that cannot be directly fed into a fine shredder or granulator
- ✓ Motor power: 500kW – 900kW (twin hydraulic or electric drive)
- ✓ Throughput capacity: 5 – 40 tons/hour
- ✓ Infeed opening: 1500×1000mm – 3000×2000mm (accepts whole car bodies and large appliances directly)
- ✓ Output size: 200 – 600mm (coarse, for downstream secondary shredder or baler shear)
- ✓ Shaft speed: 5 – 25 RPM (ultra-low speed, ultra-high torque — maximum resistance to jamming and tramp metal)
- ✓ Advantages: Accepts the largest and most irregular input of all shredder types, extreme tramp metal tolerance with automatic hydraulic overload protection, ideal first-stage machine in complete automotive or appliance recycling lines, significantly reduces wear on downstream secondary shredders by pre-sizing material
Scrap Metal Shredder Technical Parameters
HUAXIN scrap metal shredders are available in a wide range of configurations. The following table covers our standard double shaft shredder model series as a reference:
| Model | Motor Power (kW) | Chamber Length (mm) | Throughput (t/h) |
|---|---|---|---|
| HX-DS800 | 2×37, or 45, or 55 | 800 | 2–6 |
| HX-DS1000 | 2×55, or 75, or 90 | 1000 | 3–10 |
| HX-DS1200 | 2×90, or 110, or 132 | 1200 | 5–15 |
| HX-DS1500 | 22× 110, or 132, or 160 | 1500 | 8–20 |
| HX-DS1800 | 2×132, or 160, or 185 | 1800 | 10–22 |
| HX-DS2000 | 2×160, or 185, or 200, or 250 | 2000 | 15–30 |
| HX-DS2200 | 2×160, or 185, or 200, or 250 | 2200 | 20-35 |
| HX-DS2600 | 2×160, or 185, or 200, or 250, or 290 | 2600 | 25-40 |
* All parameters are for light-to-medium scrap metal as reference. Actual capacity varies by material type, density, and input size. Custom configurations available. Contact us for a model recommendation based on your specific material profile.
Applications of Scrap Metal Shredders
HUAXIN scrap metal shredders are deployed across a wide range of industrial recycling and processing applications:
Scrap Yards & Metal Recycling Centers
Process incoming mixed ferrous and non-ferrous scrap — car bodies, steel drums, structural steel offcuts, wire bundles, and light HMS — into uniform fragments ready for magnetic separation and direct sale to steel mills. Shredding increases scrap density by 3–5x, dramatically reducing transport cost per ton.
Automotive Recycling (ELV Processing)
Shred end-of-life vehicles (ELV) into fist-sized metal fragments after depollution. Pre shredders and double shaft shredders are the core machines in automotive shredder lines, processing large volumes of car bodies and liberating steel, aluminum, copper, and zinc for downstream magnetic and eddy current separation.
White Goods (Appliance) Recycling
Process refrigerators, washing machines, dryers, air conditioners, and other household appliances after removal of hazardous components (compressors, CFC gas, PCBs). Pre shredders handle oversized whole units as first-stage input, while double shaft shredders reduce appliances to 100–200mm fragments for magnetic ferrous recovery and non-ferrous separation.
E-Waste (WEEE) Recycling
Pre-shred printed circuit boards, hard drives, server racks, cables, and mixed electronic waste. Four shaft shredders produce finely controlled 25–50mm output particles that maximize precious metal (gold, silver, copper, palladium) liberation for downstream granulation and separation systems.
Steel Mills & Foundries
Prepare scrap charge material for electric arc furnaces (EAF) and induction furnaces. Shredded scrap with uniform fragment size (80–150mm) loads more efficiently into furnace charging buckets, reducing melting time and energy consumption per ton of steel produced.
Manufacturing Facility Scrap Recovery
Process production scrap from stamping, machining, and fabrication operations — including metal turnings, punching offcuts, rejected parts, and packaging waste. On-site shredding eliminates the cost of bulky scrap transport and increases the resale value of internally generated scrap material.
Cable & Wire Recycling
Pre-shred scrap cables, copper wire bundles, and aluminum wiring to expose the metal core for granulation and air separation. Single shaft and double shaft shredders with specialized cutting configurations effectively process tangled wire without jamming.
Oil Drum & Steel Barrel Recycling
Safely shred empty oil drums, paint buckets, and steel barrels (including closed-top containers) into flat fragments for compaction and resale. HUAXIN double shaft shredders include special low-speed shredding configurations to prevent sparks and reduce fire risk during drum processing.
How to Choose the Right Scrap Metal Shredder
Selecting the correct scrap metal shredder requires a careful evaluation of your material profile, volume targets, and output requirements:
5.1. Identify Your Input Material
- Light mixed scrap (cans, thin sheet, wire, small appliances): Double shaft or single shaft shredder, 30–90kW
- Medium scrap (drums, radiators, aluminum profiles, light ELV parts): Double shaft shredder, 90–200kW
- Heavy scrap (full car bodies, thick-walled drums, heavy appliances): Double shaft 200–400kW or pre shredder as first stage
- E-waste / WEEE: Four shaft shredder for tight output size control
- Oversized bulky input (whole vehicles, large industrial structures, oversized HMS bundles): Pre shredder (500kW – 900kW) as mandatory first stage before any secondary shredder
5.2. Processing Volume Requirements
- Low volume (2–5 tons/hour): HX-DS800 / HX-DS1000 double shaft shredder
- Medium volume (4–10 tons/hour): HX-DS1000 / HX-DS1200 / HX-DS1400 / HX-DS1500 double shaft shredder
- High volume (10–20 tons/hour): HX-DS1500 / HX-DS1800 double shaft shredder
- Very high volume (20–40+ tons/hour): HX-DS2000 / HX-DS2200 / HX-DS2600 double shaft or pre shredder system
5.3. Drive System Selection
- Electric motor + gearbox drive: Most energy-efficient for sustained high throughput, standard on most HUAXIN models. Lower operating cost per ton.
- Hydraulic drive: Superior overload tolerance and infinite speed control. Preferred for very hard, high-density scrap and pre shredder applications. Easier to protect against jamming damage caused by tramp metal.
Why Choose HUAXIN Scrap Metal Shredders?
🏭 30+ Years Manufacturing Expertise
Since 1989, HUAXIN has specialized in scrap metal recycling equipment, delivering industrial shredding systems to recycling facilities across more than 30 countries. Our R&D team continuously innovates blade geometry, shaft design, and drive systems to maximize shredder performance and blade service life.
💰 Factory-Direct Pricing
As a direct manufacturer with our own casting, machining, and assembly facilities, we eliminate all middleman markups. You receive industrial-grade shredding equipment at 20–35% below equivalent market pricing. Volume orders and complete recycling line packages receive additional discounts.
✅ CE & ISO Certified Quality
Every HUAXIN shredder undergoes rigorous quality control before shipment:
- ✓ 100% full-load test run before shipment
- ✓ Forged alloy steel shafts (not welded) with minimum Ø300mm diameter
- ✓ High-alloy tool steel blades — Raw Materials: M6V, H13 and Hardox 500 with 50-62HRC hardnexx
- ✓ Split-type bearing housings for fast, tool-free blade removal
- ✓ Q345/Q355 high-strength structural steel frame construction
- ✓ PLC intelligent control with automatic overload reverse protection
🌍 Global Service Network
HUAXIN shredders operate in 30+ countries across North America, Europe, Middle East, Southeast Asia, Africa, and South America. We maintain established spare parts distribution networks with 48-hour delivery guarantees on standard wear parts including blades, spacers, counter-knives, and bearing assemblies.
🔧 Complete Recycling Line Integration
HUAXIN designs and supplies complete turnkey metal recycling line systems, integrating our shredders with:
- Feeding conveyors and hydraulic push-ram feeders
- Magnetic drum and overband magnetic separators (ferrous recovery)
- Eddy current separators (non-ferrous metal recovery)
- Air classification systems (light fraction / fluff separation)
- Dust collection and suppression systems
- Downstream shear balers or granulators for further processing
- SCADA / remote monitoring systems for full line control
📞 Comprehensive Support
- Free material assessment and shredder model recommendation
- 3D facility layout and complete line design service
- Video-recorded full-load testing before shipment
- Remote PLC diagnostics and real-time troubleshooting
- Operator training (on-site or video conference)
- 12-month warranty with lifetime technical support
Scrap Metal Shredder FAQ
Q1: What is a scrap metal shredder and how does it work?
A scrap metal shredder is a heavy-duty industrial machine that uses counter-rotating shafts fitted with high-alloy steel cutting blades to tear, shear, and reduce bulky scrap metal into smaller, uniform fragments. Material is fed into the cutting chamber via a hopper or conveyor. The rotating blades pull material inward, continuously cutting and tearing it until it reaches the desired output size. An automatic overload protection system detects resistance spikes and reverses the shaft rotation to clear jams without operator intervention.
Q2: What is the difference between a shredder and a shear for scrap metal?
A scrap metal shear makes a single straight cut through material in one hydraulic stroke — ideal for cutting long bars, rebar, beams, and profiles to a specific length. A scrap metal shredder uses rotating blades in continuous operation to reduce bulky, irregular scrap (car bodies, appliances, drums) into small fragments. Shears are best for precise length cutting; shredders are best for volume reduction and fragment size reduction of mixed, irregular scrap.
Q3: What materials can a scrap metal shredder process?
HUAXIN scrap metal shredders can process: ferrous metals (car bodies, steel drums, LMS, structural steel offcuts, metal turnings), non-ferrous metals (aluminum cans, aluminum profiles, copper wire bundles, copper radiators, brass fittings), e-waste and WEEE (circuit boards, hard drives, cables, server racks), white goods (refrigerators, washing machines, dryers, air conditioners), and mixed industrial scrap. Material suitability depends on shredder type, motor power, and blade configuration.
Q4: How much does a scrap metal shredder cost?
Prices range from $23,0500–$100,000 for small/meddium double shaft shredders (30–110kW) to $100,000–$700,000+ for large shredder and pre shredder systems (400–600kW). Cost depends on shredder type (double shaft, single shaft, four shaft, pre shredder), motor power, chamber size, blade material, automation level, and downstream integration. Contact us for an exact quote based on your material profile and throughput target.
Q5: How long do shredder blades last?
The raw materials of our blades are Mv6, H13 or Hardox 500 depend on customer’s choice. Blade life depends heavily on the material being processed. For light mixed scrap (aluminum cans, thin sheet), blades typically last 5,000–30,000 operating hours. For medium-density ferrous scrap, expect 5,000–35,000 hours. For hard, abrasive materials (manganese steel, castings), blade life may be reduced.
Q6: What is the throughput capacity of a double shaft scrap metal shredder?
HUAXIN double shaft shredders process between 2.0 tons/hour (small HX-DS800 model) and 30 tons/hour (large HX-DS2000 model) for light-to-medium scrap metal. Actual capacity depends on material type and density, input piece size, target output size, motor power, and blade configuration. Always specify your exact material when requesting a capacity estimate.
Q7: What is a pre shredder and when do I need one?
A pre shredder (primary shredder) is the first-stage size reduction machine in a multi-step recycling line. It is needed when your input material is too large, too bulky, or too irregular to feed directly into a fine shredder or granulator — such as whole car bodies, large white goods, oversized HMS bundles, or industrial scrap structures. The pre shredder reduces this oversized input to a manageable intermediate size (200–600mm), protecting downstream equipment from overload and dramatically extending secondary shredder blade life. If your operation processes whole vehicles, large appliances, or bulk industrial scrap at significant volume, a pre shredder is an essential first stage in your recycling line.
Q8: What safety features are included as standard?
Standard safety features on all HUAXIN shredders include: PLC automatic overload detection and shaft auto-reverse, emergency stop buttons at all operator positions, electrical cabinet overload and short-circuit protection, heavy-duty safety grating over the cutting chamber, access interlock switches on inspection doors, thermal protection sensors on motors and gearboxes, and CE-certified electrical systems compliant with international safety standards.
Q9: What is the typical delivery and installation time?
Standard double shaft shredder models (HX-DS800 to HX-DS2000): 30–45 days production + 20–40 days shipping. Large custom models and complete shredder lines: 40–50 days production. We provide complete installation manuals, wiring diagrams, commissioning guides, and video support. On-site commissioning engineers are available for large turnkey line orders.
Q10: Can a scrap metal shredder be integrated into a complete recycling line?
Yes — and this is how most industrial facilities deploy shredders. A typical complete metal recycling line includes: infeed conveyor → pre shredder (if oversized input) → secondary double shaft shredder or crusher → discharge conveyor → overband magnetic separator (ferrous recovery) → eddy current separator (non-ferrous recovery) → air classifier (light fraction removal) → product stockpile conveyors. HUAXIN designs and supplies complete turnkey recycling lines with full PLC automation and SCADA monitoring.
Maintenance & Safety Tips for Scrap Metal Shredders
Daily Maintenance Checklist
- ✓ Check gearbox oil level and inspect for oil leaks at shaft seals
- ✓ Inspect cutting chamber for material buildup, wedged pieces, or foreign objects
- ✓ Test emergency stop buttons and PLC auto-reverse function
- ✓ Check blade condition — visually inspect all blade edges for chipping or excessive wear
- ✓ Verify conveyor belts and feeding system operation before startup
- ✓ Monitor motor and gearbox temperature during the first 30 minutes of operation
Weekly / Monthly Maintenance
- Inspect and re-grease all bearing lubrication points
- Check blade gap clearance between moving and fixed blades — adjust if worn beyond tolerance
- Inspect all bolts on blade mounting, frame, and bearing housings — retorque to specification
- Check V-belt or coupling tension and alignment on motor-to-gearbox drive
- Inspect and clean PLC control panel filters and ventilation
Annual Maintenance
- Complete gearbox oil change (both drive gearboxes)
- Full blade set inspection — replace all blades that cannot be further rotated
- Inspect shaft wear rings and spacers — replace if wear exceeds 15% of original thickness
- Full bearing inspection — check for play, noise, and seal integrity; replace as needed
- Inspect cutting chamber liner plates and counter-knives — replace worn liners
- Full electrical inspection: motor insulation resistance test, PLC battery backup check
- Full-load test and capacity calibration after major maintenance
Safety Best Practices
- ⚠ Never reach into the cutting chamber while the machine is powered — always lock out / tag out (LOTO) before any maintenance
- ⚠ Always inspect incoming material for explosive or pressurized items (gas cylinders, aerosol cans, sealed containers) before feeding
- ⚠ Never feed material harder or thicker than the machine’s rated maximum input size or material hardness
- ⚠ Ensure all personnel stand clear of the discharge chute area during operation
- ⚠ Always wear appropriate PPE: safety glasses, steel-toe boots, cut-resistant gloves, and hearing protection
- ⚠ Ensure adequate ventilation and, if processing painted or coated metals, install appropriate dust collection and fume extraction
- ⚠ Never bypass or disable the auto-reverse, overload protection, or any safety interlock system
Troubleshooting Common Issues
| Problem | Likely Cause | Solution |
|---|---|---|
| Machine jams and does not auto-reverse | Auto-reverse sensor fault or PLC setting error | Remove the accumulated/scrap material that has caused the jam. Do not overload the machine with excessive material. Check PLC program and torque sensor calibration; inspect sensor wiring |
| Blades not cutting cleanly / tearing instead of shearing | Blade gap too wide or blades are severely worn | Adjust blade gap to specification; rotate or replace blade set |
| Throughput significantly reduced | Worn blades, or gearbox oil contamination | Rotate blades; check and change gearbox oil |
| Gearbox overheating | Low oil level, wrong oil grade, or overloaded operation | Check oil level and grade; reduce feed rate; inspect cooling system |
| Excessive vibration during operation | Blade mounting bolt loose or blade set imbalanced | Stop machine immediately; retorque all blade bolts; rebalance blade set |
| Motor trips on overload | Material too hard/thick, or motor issue | Reduce feed rate; check material against rated capacity; inspect motor windings |
Customer Success Stories
Case 1: Double Shaft Shredder Line in Anhui,China
- Machine: HX-DS1500 Double Shaft Shredder (2×132kW)
- Material: Mixed white goods, steel drums, light ferrous scrap
- Throughput: 12–15 tons/hour
- Output size: 150–250mm
- Commissioned: 2019
Case 2: Twin Shaft Shredder for E-Waste in Japan
- Machine: HX-FS800 Four Shaft Shredder (4×22kW)
- Material: Mixed e-waste (WEEE): PCBs, hard drives, cables
- Throughput: 1.0–2.5 tons/hour
- Output size: 30–50mm for downstream granulation
- Commissioned: 2015
Case 3: Pre Shredder + Crusher Line in Korea
- Machines: HX-PS2200 Pre Shredder (2×250kW) + 630kw Crusher
- Material: Whole car bodies (ELV), large white goods, oversized industrial scrap
- Throughput: 20–30 tons/hour (complete line)
- Integration: Complete line with magnetic separator + eddy current + air classifier
- Commissioned: 2016
More customer cases available upon request.
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