Need to crush plastic drums, hollow containers, toy shells, bottles or blow-molded plastic scrap without constant bouncing, jamming or manual pre-cutting?

The Wensui WSGT Hollow Plastic Crusher is designed for lightweight and bulky plastic products that are difficult to process with conventional plastic crushers.

With a V-type cutting system, optimized feeding structure and processing capacity of approximately 300–680 kg/h, the WSGT series helps manufacturers and recyclers reduce manual handling and improve continuous crushing efficiency.

It is suitable for processing materials such as:

· PP plastic drums;

· PE containers;

· ABS toy shells;

· blind-box plastic housings;

· blow-molded bottles;

· plastic cans and barrels;

· hollow packaging;

· rejected plastic products;

· factory plastic scrap.

For customers unsure which crusher model is suitable, Wensui can evaluate the machine configuration based on the actual material size, resin, wall thickness and required output.

Why Conventional Plastic Crushers Struggle With Hollow Products

Hollow plastics behave very differently from solid runners, lumps and small injection-molded parts.

Because they have a large volume but relatively low weight, hollow products may bounce inside the feeding hopper when contacted by the rotor.

This can cause several production problems.

Material Bouncing

The rotating knives may push lightweight products upward before establishing a stable cutting bite.

Operators often see drums, bottles or hollow toy shells repeatedly moving inside the hopper instead of entering the cutting chamber.

Low Effective Output

A crusher can have a powerful motor and still produce poor results if the rotor cannot feed the material efficiently.

For hollow plastic applications, stable material engagement often matters more than motor power alone.

Frequent Jamming

Large hollow parts can overlap near the rotor and create material bridging.

This may result in:

· unstable motor current;

· rotor overload;

· repeated shutdowns;

· manual material clearing;

· lower production efficiency.

Extra Labor for Pre-Cutting

With a general-purpose crusher, operators may need to manually cut or flatten plastic containers before feeding them into the machine.

For factories handling large volumes of scrap every day, this adds unnecessary labor and slows the recycling process.

The WSGT series is designed to address these issues at the crushing stage.

Why Choose the WSGT Hollow Plastic Crusher?

V-Type Alloy Knife System for Better Material Bite

The WSGT uses a high-strength V-type alloy knife arrangement.

Instead of applying cutting force across the full knife width at the same time, the V-shaped geometry creates a progressive cutting action.

This helps the rotor bite hollow and irregular materials more effectively.

Benefits include:

· more stable material feeding;

· reduced bouncing;

· smoother cutting load;

· improved crushing continuity;

· more consistent regrind size.

This knife configuration is particularly useful for bulky plastic products that tend to slide or move away from conventional straight knives.

Adjustable Rotating Knives

The rotating knives can be adjusted to maintain suitable cutting clearance during long-term operation.

Correct knife clearance is important because excessive clearance can increase tearing and fines, while insufficient clearance can create unnecessary mechanical load.

The knives can also be resharpened when appropriate, helping reduce long-term replacement costs.

300–680 kg/h Processing Capacity

Depending on model selection and actual material conditions, the WSGT series can provide processing capacity of approximately:

300–680 kg/h

Actual output depends on:

· material type;

· product dimensions;

· wall thickness;

· bulk density;

· screen opening;

· feeding method;

· contamination;

· required flake size.

For this reason, buyers should not select a crusher based only on catalog capacity.

Wensui recommends matching the crusher to the actual plastic product.

Reduced Need for Manual Pre-Cutting

For suitable hollow products, the WSGT can reduce the amount of cutting, flattening or breaking required before feeding.

This can help manufacturers reduce manual preparation and improve the continuity of the recycling process.

In production environments where scrap is generated continuously, removing unnecessary manual steps can have a significant impact on operating cost.

Consistent Plastic Regrind

The objective of industrial plastic crushing is not simply to make material as small as possible.

A properly configured crusher should produce a consistent regrind size suitable for downstream processes such as:

· conveying;

· washing;

· drying;

· sorting;

· blending;

· extrusion;

· pelletizing;

· in-house material reuse.

For clean and properly sorted production scrap, more consistent regrind can make subsequent recycling operations easier to control.

Five-Sided Sound-Insulated Feeding Hopper

Hollow plastic products can create considerable impact noise because they repeatedly contact the hopper before entering the rotor.

The WSGT uses a five-sided sound-insulated hopper structure with reinforced internal construction to help reduce unnecessary operating noise.

This is especially useful for crushers installed near molding or production areas.

Durable Bearing Protection

Plastic crushing generates flakes, dust and vibration.

The WSGT is designed with protected bearing structures to support long-term industrial use and reduce the risk of contaminants affecting critical components.

Routine maintenance remains important for stable crusher performance.