The DILOYA Four Shaft Shredder prepares suitable metal turnings for briquetting using a four-shaft cutting arrangement and a sizing screen. It breaks up tangled steel and iron, copper and aluminium swarf into smaller pieces, with screen selection helping control the discharge for downstream conveying and press feeding. The configuration can be matched to different briquetting-machine models.
The DILOYA Four Shaft Shredder is an upstream accessory for metal-chip briquetting lines. It reduces suitable long, curled or tangled machining swarf into smaller pieces before transfer and hydraulic compaction. Typical materials include steel and iron turnings, copper turnings and aluminium turnings from machining workshops and centralised chip-collection systems.
The machine combines a four-shaft cutting design with a sizing screen. The cutting arrangement breaks up the incoming swarf, while the screen helps control which material can leave the cutting chamber. The aim is to produce useful feedstock for the selected conveyor, buffer hopper and briquetting machine rather than to shred every material to the smallest possible size.
| Model | PFS300 | PFS400 | PFS600 | PFS800 | PFS1000 | PFS1200 |
| Chamber Size | 300x280mm | 400x360mm | 600x480mm | 800x620mm | 1000x720mm | 1200x720mm |
| Rotor Diameter | 160mm | 200mm | 280mm | 360mm | 450mm | 450mm |
| Motor Power | 4kw | 2x4kw | 2x11kw | 2x22kw | 2x37kw | 2x45kw |
| Machine Weight | 450kg | 870kg | 2350kg | 4560kg | 6120kg | 9670kg |
The four-shaft arrangement provides multiple cutting interactions to reduce suitable machining turnings and break up tangled bundles. Rotor and cutter configuration must be selected for the actual metal, chip geometry and processing duty. The detailed shaft arrangement and drive configuration are confirmed for the selected machine model.
Long chip nests can be difficult to transfer and may cause inconsistent presentation to a press-feeding system. Shredding reduces this tangling and prepares more manageable pieces. However, four shafts alone do not establish a throughput figure or guarantee a particular discharge size: material characteristics, cutter configuration, screen selection and loading consistency remain important.
The sizing screen helps retain material that requires further processing and allows sufficiently reduced chips to discharge through its openings. Screen aperture is therefore an important selection parameter when matching the shredder to the downstream equipment.
A smaller opening generally produces a finer discharge but can require more cutting work and reduce processing capacity. A larger opening can allow coarser chips to leave the chamber and may support a higher rate where the feedstock and cutting configuration permit. The correct choice balances chip preparation with sustained production demand.
Screen aperture should not be interpreted as an identical length specification for every chip. Slender or elongated pieces can pass through openings in different orientations, and the resulting distribution depends on the screen geometry, cutter arrangement and feed material. Material trials help assess the actual discharge against the receiving system's requirements.
> Steel and iron turnings: suitable long or curled ferrous swarf that needs size reduction before pressing. Hardness, chip thickness and contamination must be assessed.
> Copper turnings: curled or tangled copper machining chips requiring preparation for downstream transfer and briquetting.
> Aluminium turnings: lightweight, bulky aluminium swarf that can form loose nests and benefit from controlled size reduction.
> Other machining chips: suitability is evaluated from representative samples, alloy details and the required process.
Keep metals and alloy grades separate where the recycling process requires grade control. Remove tools, bars, heavy solid offcuts and other unsuitable contaminants before loading. This accessory is selected for machining turnings; it should not be treated as a universal shredder for unrestricted mixed-metal scrap.
1> Collection and sorting: collect the turnings, identify the metal and remove unsuitable contaminants.
2> Controlled feeding: load suitable swarf into the hopper at a rate matched to the machine.
3> Four-shaft shredding: the cutting arrangement breaks up bundles and reduces the turnings.
4> Screening at discharge: the selected screen helps control material leaving the cutting chamber.
5> Transfer and buffering: prepared chips are collected or conveyed to a suitable buffer and feeding system.
6> Hydraulic briquetting: the matched press compresses the prepared chips into dense briquettes.
The Four Shaft Shredder can be configured around different briquetting-machine models. Engineering coordination covers chip-size requirements, discharge height, transfer equipment, buffer capacity, press inlet and operating controls. Existing presses can also be assessed for integration, subject to their actual feeding requirements and available interfaces.
A buffer hopper between shredding and pressing can accommodate differences in operating cycles and support coordinated feeding. The average capacities of the connected equipment must still be matched. A buffer cannot compensate indefinitely if shredder output is below the press demand.
The complete line may include additional material-handling or fluid-separation stages according to the feedstock. Shredding controls material size; it does not by itself establish a specified residual-oil or coolant level.
> More manageable swarf: size reduction breaks up bulky bundles before transfer and pressing.
> Screen-based process control: the selected aperture helps tailor the discharge to downstream feeding needs.
> Flexible press integration: the shredder can be evaluated with different press models and layouts.
> Coordinated material flow: shredding, buffering and feeding can be planned as connected production stages.
> Application-specific configuration: cutters, screen and handling arrangements are selected around actual metal-turnings conditions.
Consistent loading and suitable feedstock are important for reliable operation. Inspect cutters and screens according to the maintenance schedule: wear, damaged openings or material build-up may affect discharge behaviour and production performance. Stop and isolate the machine before inspection, cleaning or replacement in accordance with its operating instructions.
Changing the screen or processing a different metal requires reassessment of the production rate and downstream feeding behaviour. No fixed capacity, discharge-size distribution or energy figure should be assumed without a defined machine configuration and material assessment.
Send DILOYA photos or samples of the swarf, metal and alloy information, typical chip dimensions, loose bulk density, fluid condition and required hourly output. Provide the proposed briquetting-machine model, preferred discharge-size range, loading and conveying methods, available installation space and local power supply.
Our team will evaluate the four-shaft shredder, screen and downstream equipment together. The objective is a practical preparation stage that supplies the press reliably without unnecessary fine shredding or an avoidable production bottleneck.
Share your material, target hour capacity and other requirements. Our engineering team will reply with a suitable solutions.