Specialized Machine Double Twin Shaft Shredder Recycling Lump

• After-sales Service: Long Life Time Service
• Warranty: 1 Year
• Type: Powerful Plastic shredders
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: RM300/500/1000/1500/2000/2500/3000
• Raw Material: HDPE
• Structure: Top Feed
• Knife Classification: Piece Knife Crusher
• Knife Roll: Solid Knife Roller
• Automation: Automatic
• Computerized: Computerized
• Certification: CE, ISO9001:2008
• Capacity: 300~3000kg/H
• Color: Could Be Customized
• Electric Grid: 3p 220~440V 50 or 60Hz
• After-Sale Service: Eers Available to Service Machinery Overseas
• Application: Plastic HDPE PP PS ABS PPR Pet PC PA EVA
• Transport Package: Wrap Film
• Specification: TSS600~2000 TDS600~2000 TFS600~2000
• Trademark: RETECH machinery
• Origin: China
• HS Code: 8479820090
• Production Capacity: 300~3000kg/H
• Package Size: 300.00cm * 250.00cm * 220.00cm
• Package Gross Weight: 6000.000kg

Product Description

Specialized Machine Double Twin shaft shredder Recycling Lump 

 

Product Description

 

A double shaft shredder is a powerful machine designed for the size reduction of various materials, such as metals, plastics, wood, and waste products. It is widely used in industrial applications for recycling and waste management due to its ability to process a variety of materials efficiently. Here's a detailed description of a double shaft shredder:

Key Components:

1. Two Rotating Shafts:

   • The core feature of a double shaft shredder is its two parallel rotating shafts. These shafts are equipped with cutting blades or knives that rotate in opposite directions.
   • The design ensures that materials are effectively pulled into the shredding chamber and cut between the blades of the two shafts.

2. Cutting Blades/Knives:

   • The blades are typically made of hardened steel to withstand the wear and tear from shredding tough materials.
   • They come in various shapes and configurations, depending on the specific application and material being processed.

3. Motor and Gearbox:

   • The shredder is powered by electric motors connected to the shafts via gearboxes. The motors provide the necessary torque to the shafts for shredding operations.
   • The gearboxes reduce the motor speed and increase torque, enabling the machine to handle heavy-duty shredding.

4. Shredding Chamber:

   • The chamber houses the rotating shafts and cutting blades. It is designed to contain the material being shredded and direct it towards the cutting action.
   • The size of the chamber varies based on the shredder's capacity and intended application.

5. Frame and Housing:

   • The machine is built on a robust frame that provides stability during operation.
   • The housing protects the internal components and ensures safe operation.

Operating Principle:

1. Feeding:

   • Material is fed into the shredder either manually or through an automated feeding system. It enters the shredding chamber from the top.

2. Shredding Action:

   • As the material contacts the rotating blades, it is grabbed and pulled between the shafts.
   • The counter-rotating action of the shafts creates a shearing and tearing effect, reducing the material size.

3. Discharge:

   • Shredded material is discharged through the bottom of the chamber.
   • The size of the shredded output can be controlled by changing the configuration of the cutting blades or using screens with different sized openings.

Applications:

• Recycling:

  • Double shaft shredders are extensively used in recycling operations for materials such as plastics, rubber, metals, and e-waste.

• Waste Management:

  • They are used to reduce the volume of waste, making it easier to handle, transport, and process.

• Industrial Applications:

  • In manufacturing, these shredders help in reducing production waste and recycling offcuts and defective products.

Advantages:

• Versatility:

  • Capable of processing a wide range of materials.

• High Efficiency:

  • Can handle large volumes of material continuously.

• Durability:

  • Robust construction with hardened blades ensures long-term operation with minimal downtime.

• Safety:

  • Designed with safety features to protect operators and prevent accidents.

Maintenance and Considerations:

• Regular Inspection:

  • Routine checks of the blades, motors, and gearboxes are necessary to ensure optimal performance.

• Blade Replacement:

  • Blades will wear over time and need replacement to maintain shredding efficiency.

• Lubrication:

  • Proper lubrication of moving parts is crucial to prevent wear and tear.

• Control Systems:

  • Modern double shaft shredders are often equipped with advanced control systems for monitoring and automating the shredding process, improving efficiency and safety.
  • 

    • The core feature of a double shaft shredder is its two parallel rotating shafts. These shafts are equipped with cutting blades or knives that rotate in opposite directions.
    • The design ensures that materials are effectively pulled into the shredding chamber and cut between the blades of the two shafts.

     

    
     

The continuous cutting action reduces the material into smaller pieces.  The size of the output pieces can be controlled by adjusting the blade configuration and the spacing between the blades.

 

Function

 

Function of a Double Shaft Shredder

1. Material Feeding:

   • Material to be shredded is fed into the machine through a hopper. This can be done manually or via automated feeding systems like conveyor belts.

2. Grabbing and Pulling:

   • Once the material enters the shredding chamber, it comes into contact with the rotating blades on the two shafts.
   • The counter-rotating action of the shafts grabs and pulls the material into the center of the chamber.

3. Cutting and Shredding:

   • The cutting blades or knives on each shaft are positioned in such a way that they overlap with the blades on the opposing shaft.
   • As the material is pulled into the chamber, the blades shear, cut, and tear the material. This action is enhanced by the torque provided by the motor and gearbox.

4. Material Size Reduction:

   • The continuous cutting action reduces the material into smaller pieces. The size of the output pieces can be controlled by adjusting the blade configuration and the spacing between the blades.
   • Some shredders use screens or grates at the bottom of the shredding chamber to ensure that the material is shredded to a consistent size before it exits the machine.

5. Discharge:

   • The shredded material is discharged from the bottom of the shredding chamber.
   • This material can then be collected in a container, or further processed, sorted, or transported for recycling or disposal.

Detailed Mechanical Process:

1. Motor Activation:

   • When the shredder is turned on, the electric motors drive the gearboxes.
   • The gearboxes reduce the speed of the motor but increase the torque, providing the necessary power for heavy-duty shredding.

2. Shaft Rotation:

   • The two shafts rotate in opposite directions. This counter-rotation is key to the effective grabbing and shredding of the material.
   • The rotational speed and direction are typically controlled by the shredder's control system.

3. Blade Action:

   • The blades are mounted on the shafts at specific intervals and angles. As the shafts rotate, the blades cut against each other.
   • This shearing action is particularly effective for cutting through tough materials like metal and dense plastics.

4. Torque Application:

   • High torque is applied to the shafts to handle tough materials and prevent jamming.
   • Modern double shaft shredders often have overload protection mechanisms to prevent damage to the machine in case of excessive load or jamming.

5. Automation and Monitoring:

   • Advanced shredders may be equipped with sensors and control systems to monitor the shredding process.
   • These systems can adjust the speed and torque of the motors, detect jams, and even reverse the rotation of the shafts to clear blockages.

Maintenance and Safety Features:

• Blade Maintenance:

  • Regular inspection and maintenance of the blades are necessary to keep them sharp and effective.
  • Blades can be replaced or sharpened as needed to maintain performance.

• Lubrication:

  • The moving parts, including the shafts and gearboxes, require regular lubrication to reduce friction and wear.

• Safety Mechanisms:

  • Modern shredders are equipped with safety features such as emergency stop buttons, protective guards, and automatic shutdown systems in case of overload or other issues.
  • Operator training and safety protocols are essential to ensure safe operation.

Applications and Uses:

• Recycling:

  • Double shaft shredders are used in recycling plants to process materials like plastic, rubber, metal, and electronic waste.

• Waste Management:

  • They help reduce the volume of waste, making it easier to handle and process for disposal or recycling.

• Industrial Use:

  • In manufacturing, they are used to shred offcuts, defective products, and production waste.

Product Parameters

 

Item/Model	YMD2130	YMD2140	YMD2160	YMD2180
A(mm)	1750	1720	2590	2930
B(mm)	1060	1260	1260	1260
C(mm)	304	404	604	804
D(mm)	380	510	510	510
F(mm)	1180	600	650	850
H(mm)	1090	1900	2000	2020
Rotor diameter(mm)	φ270	φ284	φ284	φ284
Spindle speed(r/min)	11	17	15	14
Qty of rotating blades(PCS)	15	20	30	40
Thickness of blade(mm)	20	20	20	20
Main engine power(KW)	7.5	7.5	5.5+5.5	7.5+7.5
Equipment weight(KG)	1250	1400	2200	2400
Output(KG/H)	about150	about200	about300	about400

Packaging & Shipping

 

Certifications