High‑Torque Rigid Plastic Shredding

Single‑Shaft Shredder for Rigid Plastics

RUMTOO‘s single‑shaft shredder turns bulky rigid plastics—lumps, purges, pipes, pallets, sheet rolls—into uniform flakes with controlled size. Hydraulic pusher, wear‑resistant knives, and selectable screens deliver stable throughput and low running costs.

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From Bulky Scrap to Uniform Flakes

Rigid plastic waste is heavy, bulky, and often inconsistent. A controlled single‑shaft shredding system keeps size, throughput and cost predictable.

Common Challenges

Irregular feed (lumps, purges, long pipes) causes jams and unstable output.
Excessive fines and heat when using improper tooling or dull knives.
High energy consumption and frequent downtime increase overall costs.

RUMTOO’s Solution

Hydraulic pusher + torque‑optimized rotor maintain steady feed with fewer jams.
Wear‑resistant knives and adjustable screens ensure precise, consistent particle size.
Intelligent protection and easy access reduce maintenance time and energy cost.

Key Features & Benefits

Built for demanding rigid plastics. Reliable, efficient, and easy to service.

High‑Torque Rotor

Optimized cutting chamber and rotor geometry deliver strong bite on thick sections and purges.

Hydraulic Pusher

Automatically feeds material to the rotor, preventing bridging and stabilizing throughput.

Wear‑Resistant Knives

Reversible cutting tools and hardened counter‑knives extend service life and lower OPEX.

Selectable Screens

Swap screens to control discharge size for pelletizing, washing, or direct reuse.

Safety & Protection

Overload/over‑torque protection with automatic reverse to protect the drivetrain.

Maintenance‑Friendly

Large inspection door and easy access to knives, screens and bearings simplify service.

How It Works: Controlled Shearing

RUMTOO’s single‑shaft shredder uses a pusher‑assisted feed and rotor‑against‑anvil cutting to produce consistent flakes.

1Infeed

Bulky rigid plastic scrap enters the hopper.

2Hydraulic Push

A pusher slides material against the rotating rotor.

3Cutting

Rotor knives shear against fixed counter‑knives for efficient size reduction.

4Sizing

Material passes through a screen to achieve uniform output size.

Technical Specifications

Choose the model that matches your throughput and sizing needs.

Model	Shaft Dia. (mm)	Moving Knives (pcs)	Fixed Knives (pcs)	Max Capacity (kg/h)	Main Power (kW)	Dimensions (mm)
RTM-2455	275	24	1	400	22	3250×1500×2350
RTM-3063	275	30	1	500	30	3250×1750×2350
RTM-3980	275	39	1	700	37	4150×1900×2450
RTM-48100	315	48	1	900	45	4700×2550×2650
RTM-57120	315	57	1	1200	55	5350×2850×2760
RTM-75160	350	75	2	1300	75	5900×3050×2960

Product In Action

See how the shredder handles rigid plastics with steady throughput and clean cuts.

Applications

Versatile performance across common rigid plastic streams.

Pipes & Profiles

Large diameter pipes and thick profiles reduced without clogging.

PP/PC/ABS Lumps

Ideal for purges, blocks, and thick injection scrap.

Pallets & Crates

Quickly downsizes logistics plastics for recycling.

Wire & Cable Sheathing

Removes polymer jackets prior to separation processes.

Composites

Glass fiber and CFRP parts pre‑size for downstream processing.

Sheet Rolls & Purges

Continuous feed on line scrap to recover value.

Frequently Asked Questions

What discharge sizes can I get?

Typical screen sizes range from 20–80 mm depending on downstream needs. Swap screens to change size in minutes.

How does it compare to a double‑shaft shredder?

Single‑shaft provides tighter sizing via the screen and suits clean rigid plastics. Double‑shaft excels at bulky mixed waste without sizing control.

Can it integrate with my washing or pelletizing line?

Yes. RUMTOO engineers match the infeed, conveyors, magnets, and screen size to your washing or pelletizing system for stable throughput.

What maintenance is required?

Routine knife rotation/replacement, screen inspection, and bearing lubrication. The chamber provides wide access to speed up service.

Get Your Custom Solution

Tell us your materials, target size, and capacity. RUMTOO‘s team will return a tailored proposal within 24 hours.