Dual Shaft Shredder Machine

A dual shaft shredder machine is a heavy-duty tool that reduces large waste items into smaller pieces. It uses two counter-rotating shafts with cutting blades to tear and shear materials. This machine works well for tough materials like plastic drums, tires, metal scraps, wood pallets, and electronic waste.

The machine runs at low speed but with high torque. This design gives it strong tearing force while keeping noise and dust low. Unlike single shaft shredders, a dual shaft shredder does not use a screen or hydraulic pusher. It relies on the pulling and shearing action between the two shafts to break materials down.

Many recycling facilities use this equipment as the first step in their processing lines. The shredded output can go directly to further crushing, sorting, or briquetting systems.

YG Dual Shaft Shredder Parameters-Customized Support

Model	YG-600	YG-1000	YG-1200	YG-1500	YG-1800
Knife size(mm)	Φ200*20	Φ300*30	Φ300*40	Φ500*50	Φ600*60
Power (kW)	11*2	37*2	45*2	75*2	90*2
Capacity(t/h)	0.3-0.5	1-1.2	2.5-3	3.8-4.5	6-7
Knife quantity(pcs)	30	26	30	38	45
Machine size(m)	2.6*1*2.1	3.4*1.25*2.2	3.8*1.25*2.2	4.4*1.5*2.5	5.3*2

How Does a Dual Shaft Shredder Work?

The dual shaft shredder machine uses two parallel shafts that rotate in opposite directions. Blades mounted on each shaft interlock with each other. When material enters the hopper, the blades grab and pull it downward. The cutting action combines shearing and tearing to break the material apart.

Key components include:

• Blades: Made from alloy steel like 9CrSi, D2, or SKD-11 for wear resistance.
• Motor: Dual motors provide power, ranging from 7.5kW to over 220kW depending on model.
• Reducer: Gear reducers convert motor speed to low RPM with high torque.
• PLC control: Monitors current, protects against overload, and can reverse rotation if jamming occurs.
• Hopper: Large opening for easy feeding of bulky items.

The PLC system plays an important role. When the machine detects an overload, it automatically reverses the shafts to clear the jam. This feature reduces downtime and protects the blades and motor from damage.

Applications: What Materials Can It Process?

A dual shaft shredder for sale can handle many types of waste. This versatility makes it a smart choice for recyclers and waste managers.

Common materials include:

• Plastics: HDPE drums, PP pipes, plastic lumps, films, and packaging waste.
• Tires: Whole car and truck tires, rubber products.
• Metal: Light scrap metal, aluminum profiles, copper wire, steel turnings.
• Wood: Pallets, construction waste, branches, furniture.
• Electronic waste: Circuit boards, cables, small appliances.
• Municipal solid waste: Bulky household items, mattresses, mixed recyclables.

The machine works best for bulky or irregularly shaped materials. For example, a small dual shaft shredder can process plastic drums that would be difficult to handle with a single shaft unit.

4 Features of Dual Shaft Shredder Machine

When you are looking for a small dual shaft shredder or a large industrial unit, pay attention to these features. They affect performance, maintenance costs, and service life.

1. Blade Material and Design
High-quality blades are made from alloy steel such as 42CrMo or D2. These materials resist wear and impact. Some blades can be repaired multiple times after they wear down, which saves operating costs. Blade thickness options range from 25mm to 100mm to match different feedstock.

2. Shaft and Bearing Construction
Strong shafts prevent bending under heavy loads. Self-aligning roller bearings with multi-layer sealing protect internal parts from dust and moisture. This is critical when processing wet materials or operating in outdoor environments.

3. Drive System
Dual motors with a gear reducer give the machine its high torque at low speed. This combination handles shock loading better than high-speed systems. Power ranges from small 10HP units up to 300HP for large plants.

4. Control System
A PLC control panel with overload protection is essential. It monitors current draw and can reverse the shafts when needed. This feature prevents major damage and reduces downtime.

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Why Choose a Dual Shaft Shredder?

Many buyers compare a dual shaft shredder for sale with single shaft options. Here is why a dual shaft design often wins.

• Higher throughput: Dual shafts pull material in continuously. They can process more material per hour than single shaft units of similar power.
• Handles mixed waste: The shearing action works well with mixed materials. You do not need to sort as carefully.
• Lower maintenance: Without a screen and hydraulic pusher, there are fewer parts to wear out.
• Less dust and noise: Low-speed operation produces less dust and lower noise levels than high-speed shredders.

How to Choose the Right Model

Selecting the right dual shaft shredder machine depends on your specific needs. Consider these factors:

• Feed material: What do you plan to shred? Hard plastics need stronger blades than soft films.
• Throughput requirement: How many kilograms per hour do you need to process? Models range from 300 kg/h to over 20,000 kg/h.
• Power supply: Check if you have 380V/50Hz or other specifications. Motors can be customized.
• Space: Large models can weigh over 10 tons. Make sure your site can accommodate the machine.
• Budget: A small dual shaft shredder may cost around $25,000, while large industrial models can exceed $80,000.

5 Maintenance Tips of Dual Shaft Shredder Machine

Keeping your dual shaft shredder machine in good condition extends its life and reduces costs.

Regular checks should include:

1. Inspect blades for wear. Replace or rotate blades as needed.
2. Check bearings and seals for damage or leaks.
3. Monitor motor current and temperature.
4. Keep the PLC control system updated.
5. Lubricate moving parts according to the schedule.

Most manufacturers design their machines for easy maintenance. Look for features like removable cutting chambers and detachable bearing seats. These allow quick access to blades and bearings.

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Why Buy from a Reliable Manufacturer

Choosing the right supplier matters. A good manufacturer offers:

• Quality materials: Blades made from German or high-alloy steel for longer life.
• Customization: Ability to adjust blade thickness, motor power, and hopper size.
• Warranty: Typically 12 months on the machine.
• After-sales support: Engineers available for installation and training.
• Certification: CE certification for export to many countries.

Experienced manufacturers have served clients in many countries. They understand the requirements for different markets. Whether you need a standard machine or a custom solution, they can deliver.