Double Shaft Shredder Machine

No. A primary double shaft shredder should not be expected to guarantee that every irregular piece is below 30 mm. Cutter geometry influences the discharged fraction, but flexible and mixed waste produces a size distribution. If 30 mm is a strict downstream maximum, screening and secondary size reduction should be included in the process evaluation.

Select around the normal waste mix plus the most difficult material that appears regularly—not the easiest or average material alone. Give us approximate percentages of plastic, paper, textiles, wood and other fractions, together with maximum piece size, bulk density, contamination and required t/h.

A properly configured double shaft shredder machine can improve the handling of film and other flexible waste, but the cutter configuration matters. Loose film, compressed film bales, woven bags and mixed rigid/flexible plastics do not create the same shredding duty. Send the material form and bale condition before selecting cutters.

Yes. HDPE drums and crates can potentially share one appropriately selected shredding section when their maximum dimensions and required output are compatible. Tell us the largest drum, crate dimensions, approximate material ratio and whether metal fittings or contaminants are present.

Possibly, but only if the bale dimensions, density and binding condition fit the selected feeding opening and shredding duty. A 500–700 kg densely compressed bale should not be assumed equivalent to loose plastic. Send bale L × W × H, weight, material composition and binding method before the feed system is designed.

Occasional nails and screws in pallet waste can be considered during system design, but heavy metal contamination should not be treated as normal feedstock. A downstream magnetic separator can remove liberated ferrous metal, while larger metal pieces should be controlled before they create unnecessary cutter loading or damage elsewhere in the line.

Not reliably from those two numbers alone. For a 3 t/h pallet project, we would also check pallet thickness and construction, nails or fittings, stacking/feed method and the size required after shredding. Those conditions determine whether the selected cutting chamber and drive are appropriate.

Yes, a double shaft shredder machine can be used for coarse opening and size reduction in suitable mixed-waste systems, but wet MSW requires the entire feeding and separation route to be considered. Provide moisture range, bagged fraction, composition and hard contaminants so the machine is not selected as though it were processing dry industrial waste.

Mattresses require specific evaluation before whole-unit feeding because they can combine foam, textile, long fibers and steel springs in one item. Send mattress dimensions and construction. Do not treat them as ordinary textile waste simply because most of the visible surface is fabric.

Steel reinforcement is inherent to normal tire construction, so the shredder must be selected with that structure in mind. Give us the largest tire diameter and width, tire types, required t/h and desired output. Coarse tire pre-shredding and producing a small rubber fraction are different processes and usually require different downstream stages.

Start from operating hours. 20 t/day requires an average of 2.5 t/h over 8 operating hours, 1.67 t/h over 12 hours, or 1.25 t/h over 16 hours. Then add suitable operating margin and evaluate the material's bulk density, maximum feed size and cutting difficulty before choosing the SSJ model.

Because volumetric loading can become the limit before weight does. A tonne of loose film, textile or bulky packaging occupies far more feeding volume than a tonne of dense material. For low-bulk-density waste, chamber opening, feeding continuity and m³/h can be just as important as nominal t/h.

No. Do not design the primary shredder permanently at its theoretical limit when the downstream RDF line requires a stable 5 t/h supply. Waste composition, feeding interruptions, contaminants and separation losses affect real operation. Model selection should start from the incoming waste mix and required continuous downstream flow.

Probably not if the objective is bag opening and coarse liberation rather than producing a controlled particle size. Screening becomes more relevant when downstream equipment needs a defined fraction or when oversized material must be recirculated for further size reduction.

For a large reduction from bulky mixed waste to a much smaller controlled fraction, two-stage size reduction is usually the more practical route to evaluate. Primary shredding handles bulky feed; separation can remove metal or unsuitable contaminants before secondary reduction. Do not force the entire size reduction duty onto the first machine merely by choosing thinner cutters.

The recurring abrasive stream cannot be ignored just because it represents fewer operating hours. Tell us both duties, their annual tonnage and switching frequency. Cutter selection should provide an acceptable compromise across the actual production schedule rather than being optimized only for clean plastic.

Not necessarily. First check whether the waste stream has changed. More sand, glass, metal contamination or other abrasive material can shorten cutter life even when machine settings are unchanged. Compare processed tonnage and incoming composition before assuming cutter material itself is the problem.

The SSJ double shaft shredder machine control system can stop and reverse the shafts under abnormal overload to help release a temporary blockage. This is a protection function, not permission to feed unrestricted steel, stones or other unsuitable objects. Persistent contaminants should be controlled upstream.

Yes. Existing conveyors and separators can be retained when their capacity, geometry and controls are compatible with the new SSJ section. Send conveyor width, speed, elevation, motor data, discharge height and separator arrangement so we can design the interfaces instead of automatically replacing usable equipment.

The shredder itself may fit within a 6 × 8 m area, but the complete answer depends on feeding, discharge and maintenance clearance. The SSJ machine footprints range approximately from 2.5 × 1.25 m to 5.45 × 2.4 m across the six models; conveyors, hoppers and safe service access require additional room.

Send the clear platform height, available L × W, column positions, feeding elevation and required discharge direction. This is different from a normal floor-space question: the limiting dimension may be the hopper, inclined conveyor or maintenance access rather than the shredder body itself.

The SSJ600 is still an industrial double shaft shredder machine, although it is the smallest model in the current RICHI SSJ range. It uses 2 × 15 kW drive power and a 220 mm cutter-disc diameter. It should be selected for an actual production duty rather than compared with tabletop or light-duty workshop shredders.

Not automatically. Timber offcuts, upholstery foam, textiles, metal furniture fittings and packaging have very different cutting behavior. If the streams are mixed before shredding, provide their proportions and largest items; separating some fractions upstream may give a more stable process than forcing every factory waste into one machine.

Suitable dismantled fractions may be pre-shredded, but batteries and hazardous components should be removed before mechanical shredding according to the applicable process and local requirements. E-waste preparation should be designed around controlled dismantling and separation, not unrestricted feeding of complete discarded electronics.

This is a realistic double shaft shredding application to evaluate because paper-mill rejects can contain mixed flexible and fibrous fractions. The key information is moisture, rope/string content, plastic fraction, metal contamination, maximum lump size and required downstream fraction. Wet rejects should be evaluated differently from dry paper/cardboard waste.

As a practical global market reference, an industrial double shaft shredder machine typically costs about USD 15,000–150,000 for the main machine, while a complete shredding or RDF preparation system can cost substantially more. Machine size, drive power, cutter configuration, feeding equipment, conveyors, separation, controls and secondary size reduction determine where a project falls within that range.

Not before identifying why output fell by roughly 37.5%. Check cutter wear, cutter clearance, feeding stability, waste composition, contamination and discharge conditions first. If the machine originally achieved 4 t/h on comparable material, restoring the cutting or feeding condition may cost much less than replacing the entire shredder.

Choose a bale breaker first for normal hay, alfalfa or straw bale opening in a conventional feed or biomass pellet process. A double shaft shredder machine is more appropriate when the material is difficult, contaminated, mixed or requires heavier coarse size reduction. Buying a shredder simply because it looks more powerful can add unnecessary investment and energy use.

Usually no. Primary shredded waste may still require sorting, magnetic separation, secondary size reduction, moisture adjustment and homogenization before pelletizing. The pellet mill needs a controlled feedstock; it should not be expected to correct inconsistent material coming directly from coarse shredding.

Not necessarily—the primary shredding and separation stages may be the real problem. Check the oversized fraction leaving the double shaft shredder machine, screen/recirculation arrangement and whether unsuitable contaminants are reaching the secondary machine. Increasing downstream power without controlling the incoming fraction can simply move the bottleneck.