Hammer Crusher Machine

Secondary crushing after metal-turnings shredding

The DILOYA Hammer Crusher Machine is a secondary size-reduction accessory for metal-chip briquetting systems. It processes suitable metal turnings that have already passed through a primary shredder, reducing the prepared chips further before conveying and hydraulic compaction. Typical applications include suitable steel and iron, copper and aluminium machining chips, with the configuration selected for the actual material.

Primary shredding breaks up long curls and tangled swarf bundles. Hammer crushing adds a finer preparation stage where the downstream process benefits from smaller feedstock. The machine is not intended to replace the primary shredder when incoming material is still long, heavily tangled or outside its specified feed conditions.

Parameter:

Hammer-impact crushing with a sizing screen

The crushing rotor uses hammer impacts to further reduce the pre-shredded chips. Material is processed within the crushing chamber, and a sizing screen helps control discharge. Chips that cannot pass through the selected openings remain for further processing, while sufficiently reduced material leaves the chamber for collection or transfer.

The crushing arrangement and screen must be evaluated for the metal, chip thickness, hardness, ductility and incoming size. Different alloys can respond differently to impact, so the same machine setting should not be assumed to deliver identical particle shape or output for steel, copper and aluminium.

Finer feedstock for downstream briquetting

A suitable hammer-crushing stage can provide finer material than the preceding shredding stage and reduce the amount of coarse chip material entering the press-feeding system. Where the selected briquetting process requires this preparation, it can help make the feedstock more manageable and support more consistent conveying and chamber filling.

Finer material is not automatically better for every press. The required size must be established from the receiving hopper, screw feeder, press inlet and briquette requirements. Unnecessary fine crushing can add energy demand, generate additional fines or restrict line capacity without a corresponding downstream benefit.

Selecting the screen aperture

The screen opening is a key parameter for controlling the crusher discharge. A smaller aperture generally retains material for more processing and produces a finer discharge. A larger aperture permits coarser material to leave and may support a higher processing rate when the feedstock and crusher configuration are suitable.

Screen size does not guarantee that every discharged particle has an identical length or shape. Actual size distribution depends on chip geometry, metal properties, hammer condition, screen geometry and operating conditions. Representative material trials can establish whether the resulting feedstock meets the selected briquetting machine's requirements.

Suitable feed materials and preparation

> Pre-shredded steel and iron turnings: suitable ferrous machining chips requiring further reduction before briquetting, subject to hardness and thickness assessment.

> Pre-shredded copper turnings: prepared copper chips where a finer discharge is useful for the downstream process.

3> Pre-shredded aluminium turnings: suitably prepared aluminium swarf evaluated for crushing behaviour, fines generation and press compatibility.

4> Other prepared metal chips: suitability is confirmed from representative samples and the required operating duty.

Remove tools, heavy solid offcuts, bars and other unsuitable contaminants before feeding. Keep different metals and alloy grades separated where required for recycling. Incoming chip size and fluid condition must remain within the limits agreed for the selected crusher.

Typical process arrangement

1> Collect and sort: identify the metal and remove unsuitable contaminants.

2> Primary shredding: break up long or tangled turnings into feedstock suitable for the hammer crusher.

3> Controlled crusher feeding: transfer prepared chips at a rate matched to the crushing stage.

4> Hammer crushing and screening: reduce the chips further and discharge through the selected screen openings.

5> Transfer and buffering: collect or convey the material to the matched press-feeding arrangement.

6> Briquetting: compress the prepared material in the selected hydraulic briquetting machine.

Matched to different briquetting-machine models

The Hammer Crusher Machine can be evaluated with different briquetting-machine models rather than treated as a universal attachment. The required discharge size, transfer method, collection or buffer capacity, feeding arrangement and operating controls are coordinated with the selected press.

Engineering the line as a connected system is important. A fine discharge alone does not establish higher total production: the primary shredder, crusher, conveying equipment and press must have compatible sustained capacities. A buffer can accommodate differences in operating cycles, but cannot compensate indefinitely for a bottleneck.

Supporting efficient line operation

When coarse chips are limiting the downstream feeding process, an appropriately selected secondary crusher can improve preparation and help the press receive material more consistently. This can support better overall operating efficiency in a correctly matched line.

However, an additional crushing stage also consumes energy and requires maintenance. Any improvement should be assessed against sustained output, feeding interruptions, briquette quality, fines generation and the energy use of the complete line. No fixed production increase or energy-saving percentage is specified without defined equipment and operating data.

Wear, fines and operating considerations

Inspect hammers, screens and wear components according to the maintenance schedule. Wear or damaged openings can affect particle size and crushing performance. Stop and isolate the machine before inspection, cleaning or replacement in accordance with its operating instructions.

Fine metal material can require additional dust, ignition and fluid-management precautions. These must be evaluated for the actual alloy, particle distribution and installation. Suitable guarding, extraction or collection arrangements and other protective measures are determined for the application; they should not be assumed to be included without a confirmed specification.

Crushing is not a substitute for a dedicated oil or coolant separation stage. If a specified residual-fluid condition is required, assess an appropriate separation arrangement as part of the complete production line.

Information needed for a recommendation

Provide samples or photos of the material before and after primary shredding, metal and alloy details, incoming chip dimensions, bulk density, fluid condition, required hourly output and desired discharge-size range. Include the proposed briquetting-machine model, transfer method, available space and local power supply.

DILOYA will assess whether secondary hammer crushing is useful for the project and select the crusher, screen and downstream interface accordingly. The objective is a practical balance between finer preparation, reliable briquetting feed and efficient overall production.