Parameter and Performance Detailed Explanation of 350 Type Industrial Heavy-Duty Fine Spiral Crusher

The 350 type spiral crusher is a heavy-duty spiral fine crushing equipment specially designed for plastic recycling and industrial solid waste fine grinding. Adopting the spiral progressive crushing principle, matched with high-hardness cutters and heavy-duty transmission structure, it is different from traditional high-speed impact crushing equipment. It features uniform crushed materials, low dust, wear resistance and long-term continuous operation, serving as the core equipment for fine crushing and processing of waste plastics, profiles, pipes and plates.

In plastic regeneration processing, ordinary crushers suffer from uneven impact force, easy cutter chipping, large spindle vibration and inconsistent discharge particle size, making them difficult to adapt to the stable crushing of hard plastics, thick-walled pipes and whole plates. In contrast, the 350 type spiral crusher adopts a low-speed and high-torque spiral shear crushing mode. Supported by the high-end combination of ZSY280 hard tooth surface reducer, SKD11 precision cutters and 40Cr forged spindle, it realizes flexible shearing and progressive fine crushing, effectively eliminating material burrs, excessive powder and equipment stalling. Its mass production stability and finished product quality are far superior to ordinary crushing equipment.

1. Complete Equipment Parameters, Accessory Functions and Core Values
2. ZSY280 Hard Tooth Surface Reducer

As the core heavy-duty transmission component of the equipment, it adopts a three-stage hard tooth surface transmission structure. The gears are processed through carburizing, quenching and CNC precision grinding, with the tooth surface hardness reaching HRC58-62. It boasts strong bearing capacity, high transmission efficiency, low operating noise, impact resistance and fatigue resistance. Specially designed for the low-speed and high-torque working conditions of spiral crushers, it can stably output strong torque, buffer the instantaneous impact force generated by crushing hard materials, avoid spindle stalling, transmission slipping and gear wear, greatly extend the overall service life of the equipment, and support 24-hour continuous heavy-duty operation.

2. 800*800mm Large Feeding Port

The oversized square feeding caliber is suitable for direct feeding of large-volume plastic pipes, whole plate leftover materials, block plastics and stacked miscellaneous materials without pre-cutting pretreatment. It greatly simplifies the feeding process, saves labor costs, has a high feeding fault tolerance rate, and adapts to batch crushing of various large-size waste materials.

3. 300mm Cutter Disc

The customized thickened precision cutter disc features a stable structure and ultra-high rigidity without vibration during high-speed operation. Combined with spirally arranged cutters, it forms a progressive shear crushing structure with uniform crushing force, which can effectively disperse material impact force, avoid local overload damage, and ensure a stable and smooth crushing process.

4. 46r/min Cutter Disc Speed

Exclusive speed design for low speed and high torque. Different from ordinary high-speed crushers, low-speed shearing will not produce a large amount of dust and fine powder. The finished crushed materials have uniform particles and regular edges, while reducing equipment wear, noise pollution and energy consumption, meeting the needs of fine crushing production.

5. SKD11 Fixed and Movable Cutter Group (24 Movable Cutters + 17 Fixed Cutters)

The whole machine adopts SKD11 high-hardness alloy cutters, a high-end material for industrial crushing with high wear resistance, high toughness, crack resistance and high temperature resistance. 24 movable cutters and 17 fixed cutters are arranged in a staggered spiral with accurate meshing gaps and uniform shearing force. They can efficiently crush hard plastics and thick-walled materials, and are not prone to wear, edge curling or chipping during long-term use. The stable crushing precision greatly reduces cutter replacement frequency and operation and maintenance costs.

6. 40Cr Forged Spindle

The core transmission spindle adopts integral forging technology of 40Cr material and undergoes quenching and tempering heat treatment. It has high strength, sufficient toughness, torsion resistance and fatigue resistance, with a bearing capacity far exceeding that of ordinary round steel spindles. It is not easy to deform, break or vibrate during heavy-duty crushing, ensuring the concentricity of cutter disc operation, which is the core guarantee for long-term stable mass production of the equipment.

7. 800mm Discharge Height

The standard discharge height is designed to match conventional conveyor belts, material storage equipment and feeding equipment. The discharge is smooth without blockage or material accumulation, with high material discharge efficiency. It can perfectly connect upstream and downstream equipment of the production line and adapt to automated pipeline operation.

8. 2400*1250*1500mm Overall Dimension

The machine body has a compact structure and reasonable layout, occupying a small floor space without requiring large-scale factory buildings. It is easy to install and debug, balancing large production capacity and space utilization, and is suitable for small and medium-sized plastic regeneration processing plants.

1. Core Product Features of Spiral Crusher
2. Heavy-duty, Wear-resistant and Long Service Life: The triple high-end configuration of ZSY280 hard tooth surface reducer, 40Cr forged spindle and SKD11 alloy cutters delivers excellent impact resistance and wear resistance with an extremely low failure rate, supporting 24-hour uninterrupted heavy-duty production for a long time.
3. High-quality Crushed Material Appearance: Low-speed spiral shear crushing avoids excessive impact and a large amount of dust. The crushed particles are uniform, regular and burr-free, effectively improving the quality of subsequent granulation and purification.
4. Wide Feeding Adaptability: The 800*800mm large feeding port supports direct crushing of large plates, pipes, block plastics and stacked leftover materials without pretreatment, adapting to most waste plastic materials.
5. Energy-saving, Low-noise and Stable Production: 46r/min low-speed operation reduces energy consumption, noise and vibration. With high transmission efficiency, the equipment achieves stable mass production without blockage or stalling and extremely low production loss.
6. Production Line Adaptability: The standard 800mm discharge height can be flexibly connected with various conveying and material storage equipment with strong automation adaptability. It can be used independently or matched with a complete regeneration production line.

III. Working Process

Workers or conveyors send large-size waste plastics such as whole plates and pipes into the 800*800mm feeding port of the 350 type spiral crusher → The equipment starts, and the 40Cr forged spindle drives the 300mm cutter disc to operate stably at a low speed of 46r/min → 24 SKD11 movable cutters and 17 fixed cutters form a spiral progressive shear structure to finely crush materials step by step → Qualified particles are smoothly discharged from the 800mm discharge port under gravity → The discharged materials can be directly transported to cleaning, sorting and granulation equipment to complete the whole regeneration process. Throughout the process, the ZSY280 hard tooth surface reducer stably controls the speed and buffers the load to ensure smooth equipment operation.

1. Application Fields

This spiral crusher is widely used in plastic regeneration processing plants, industrial solid waste recycling enterprises, pipe and plate recycling workshops and waste material processing factories. It is mainly used for fine crushing of PVC pipes, PE pipes, plastic plates, injection leftover materials, block plastics and thick-walled waste plastics. The crushed materials can be directly used for deep processing such as cleaning, friction washing, sorting and granulation, adapting to various plastic resource recycling scenarios.

1. FAQ

spiral crusherQ1: Can the 350 type  crush hard thick-walled plastics?

A: Absolutely yes. Equipped with SKD11 high-hardness wear-resistant cutter group, 40Cr forged heavy-duty spindle and ZSY280 high-torque reducer, the equipment features strong impact resistance and shearing force. It is specially designed for hard, thick-walled and large-size plastics, realizing chipping-free, stall-free and uniform crushing for various high-hardness plastic materials.

Q2: Does the equipment produce a lot of dust during production? Is dust removal equipment required?

A: The spiral crusher produces very little dust. Adopting the 46r/min low-speed spiral shear crushing principle, different from high-speed impact crushing, it will not generate a large number of fine powders and flying dust. For conventional production, no forced dust removal is needed, keeping the workshop environment clean and effectively reducing raw material loss and environmental pressure.

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