Single Shaft Shredder

1. Applications
Application of single shaft shredder for soft materials:
PE, PP, BOPP, PU, PET film, woven bag, packing bags, fishing net, PET fiber, PS bundling sheets, industrial waste cloth, waste books, papers, wires & cables, and daily rubbish.
Application of single shaft shredder for hard materials:
Pipes, plates, headstock, pallets, wire and cable, metal, glass fiber, carbon fiber and so on.

2. Characteristics:
Single shaft shredder for soft materials:
①. High shredding speed, with dynamic recycling working chamber, which realizes continuous feeding and stuck-proofing.
②. The spindle is specially customized with large rotation diameter to ensure the blade contact area and improve the production capacity.
③. The transmission parts are connected by coupling to reduce vibration and protect the main shaft and reducer from force loss.
④. Fixed knives are equipped on the upper and lower part of the main shaft, to effectively cut off materials without entangling, the size is small after crushing.
⑤. PLC control system has functions of start, stop, forward rotation and overload automatic protection. The whole shredder is automatic to ensure stability, safety, and save labor costs.
Single shaft shredder for hard materials:
①. High shredding speed, with dynamic recycling working chamber, unlimited feeding, and no jamming; unique external motor, stable and zero maintenance needed.
②. The main shaft is an integral fastener, which is automatically manufactured by high-tech equipment, high precision and never breaks.
③. The transmission parts are connected by coupling to reduce vibration and protect the main shaft and reducer from force loss.
④. Vertical hopper is equipped with pneumatic cover plate and safe feeding platform to keep convenient feeding and safety.
⑤. PLC control system has functions of start, stop, forward rotation and overload automatic protection. The whole shredder is automatic to ensure stability, safety, and save labor costs.

3. Gearbox of single shaft shredder
We adopt Guomao Brand high torque hardened gearbox. The international standard service factor of reducer is 2.2 times, while ours is 3-5 times. In short, our reducer is larger than domestic suppliers. And all our gearbox are equipped with water cooling system, to tremendously improve gearbox's service life.
Using tight fitted coupling to connect the reducer and main shaft, can efficiently relieve the recoil of the main shaft in the shredding process and protect the gear of the reducer. Mean time, shaft pin structure is selected in the middle of the coupling, and the recoil force is mostly carried by the pin. During later use, operator simply needs to replace the pin, which greatly reduces the cost. While traditional single shaft shredder chooses the inserting connection, that is, the main shaft of the shredder is directly inserted into the gearbox. This is loose fitting method, and the gearbox will shake during the shredding process. At the same time, the recoil of the main shaft directly acts on the gear of the gearbox, which greatly reduces the reducer's service life.

4. Shredder bearing
The bearing block is processed by machining center as a whole unit, and the center height tolerance with the main shaft is within 0.01 mm, which improves the installation accuracy. Because of the solid structure and high load of the main shaft, we choose to enlarge the bearing twice the size of the traditional shredder.
The shredder bearing is installed by gentle heat under strict requirements. However, in order to install fast, many companies choose to install directly under high heat, so the bearing bore is easily damaged.

5. safety protection
The safety is the priority when we design the single shaft shredder series. Vertical safety hopper and protection cover is added on hard material shredders. In addition, the machine is equipped with a complete set of stairs, handrails and safety maintenance platform, to achieve convenient operation and maintenance, which also can reduce the potential safety risk during using.
However, the traditional shredder is limited by its structure (pushing type plates, small frame). In order to save cost, their hopper is also simply designed, leaving high risk to users.

6. Electronic control system
Siemens and Schneider electronic control components are widely adopted in single shaft shredders, stable and reliable quality guaranteed. PLC control system can effectively control the forward and backward of the hopper, also it has perfect overload and high heat protection. The operation panel is also Siemens brand. After debugging, operators only need to control F1 to start and F2 to stop. According to the material feeding amount, the system will automatically cooperate with the mobile hopper by adjusting current, the running is totally automatic and stable. Higher automation, more stable performance and longer service life.
The traditional shredder only has a button to control, which can not effectively coordinate hopper load by adjusting current. The machine will frequently reverse, which greatly limits the stability and service life of the machine.

7. Overall structure
We enhances the main frame and plate thickness, considering there will be massive direct and high strength impacts from materials, so the machine is 1.5 times heavier than traditional shredders, thus it can achieve long-term running.

8. Hydraulic system
Our single axle shredder applies high strength hydraulic system and large diameter multi-length oil pump. The hydraulic station has high capacity and high pressure oil pipes used on forklift. In the shredding process, the hydraulic system is in middle loading state. In other words, we use stronger hydraulic system to ensure that the hydraulic pressure is always in low loading state. The hydraulic system is also equipped with water cooling to ensure stable and long-term operation.
While the traditional shredders have smaller hydraulic system that just enough to drive the pushing plate. Comparing traditional shredder's 3t pushing power, our smallest hydraulic system can reach 10t.