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1.6-2T/H Paper Mill Extruder in Germany

Paper Mill Extruder in Germany: two MZLH420 presses for traceable paper fibre, 10 mm bedding pellets, controlled feeding and product testing.

1.6-2T/H Paper Mill Extruder in Germany

OVERVIEW

The paper mill’s proposed bedding business needs its own material supply and production schedule. The layout keeps the main fibre-recycling operation running while a separate dry-paper stream passes through preparation, a buffer bin and two independently fed pellet presses.

This illustrative application of a paper mill extruder in Germany concerns a paper and board producer in North Rhine-Westphalia. It wants to evaluate bagged paper bedding for stable operators and distributors. The purchase centres on two MZLH420 ring die presses, with existing dry shredding and handling equipment assessed for reuse.

  • Name:

    Paper Pellet Extruder

  • Country:

    Germany

  • Date:

    2026

  • Capacity:

    1,600–2,000 kg/hour

  • Model:

    MZLH420

  • Main Motor Power:

    90 kW

  • Pellet diameter:

    10 mm

  • Pellet length:

    10–20 mm

Give the bedding project a defined paper stream

The candidate material is segregated, unprinted and uncoated manufacturing trim with a known source and composition. Each lot needs traceability and assessment for the intended bedding use. These controls apply before size reduction, when unwanted material remains easier to identify.

Mixed sorting rejects containing tape, plastic films, unidentified coatings or other contamination stay outside the bedding specification. Wet pulper rejects and sludge are separate material streams. Pressing cannot turn an unsuitable mixture into an acceptable animal-contact product.

The mill’s quality team establishes chemical, hygiene and foreign-material acceptance criteria with the product buyer. Paper colour or an apparently clean surface provides insufficient evidence. The commercial assessment also considers the material’s existing recycling value and the cost of preparing it for bedding.

Make the prepared fibre flow through the feeder

The dry shredder machine opens the accepted paper. Trials determine whether secondary milling is needed to remove long strips and reach a provisional fragment size below 5 mm. Fluffy paper can bridge a hopper, so the trial includes the buffer bin and feeder.

The initial moisture window is 12–14% on a wet basis. Operators check moisture across the lot and record any controlled water addition before pressing. Feed preparation must distribute moisture evenly; alternating dry fluff and damp lumps makes machine settings difficult to repeat.

In the MZLH420 paper pellet machine, rollers force prepared fibre through ring die channels to form pellets. The equipment performs mechanical densification. Die geometry, moisture and feed rate are selected together using representative paper.

Weighed feeder trials establish mass flow over a defined period. With fluffy paper, hopper level provides a volume indication; the actual weight delivered can vary between lots. Feed settings are therefore checked against measured delivery and press load. Any water-dosing and mixing equipment needed for moisture distribution is identified separately in the scope.

Two MZLH420 presses with individual feeding

The proposed arrangement allows the operator to commission one press before bringing both into production. Each unit has its own feeding controls. Their combined output still depends on shared cooling, screening and packing capacity.

Parameter Specification or application basis
Equipment quantity Two MZLH420 ring die pellet presses
Main motor 90 kW per press
Arch-breaking feeder 3 kW per press
Forced feeder 1.5 kW per press
Combined listed motor power 94.5 kW per press; 189 kW for both, excluding auxiliaries
Ring die inner diameter 420 mm
Published biomass output reference 1,000–1,200 kg/hour per press; not a paper performance guarantee
Paper application target 800–1,000 kg/hour per press of accepted cooled pellets, subject to trials
Combined application target 1,600–2,000 kg/hour
Finished pellet dimensions 10 mm diameter; target length 10–20 mm
Electrical design basis 400 V, three-phase, 50 Hz; verify mill connection

The 10 mm die determines diameter, while the cutter sets length. A diameter change requires another die. Compression is established from bedding tests, with no fixed ratio assumed from a fuel-pellet application.

Two units provide separate operating and trial schedules. A larger single press would require a different assessment of feed preparation, starting demand and maintenance arrangements. The decision rests on usable capacity and the mill’s operating plan.

Approve the bedding after delivery and wetting

The proposed sales format is a 15 kg bag. Product approval follows cooling, screening and a representative transport test. The buyer examines pellet breakage, loose fines and dust released during bag emptying.

Absorbency testing records water uptake per unit of dry material, wetting time and the structure formed as pellets break down. A handling assessment checks whether the wetted material can form a manageable bedding layer and be removed during routine cleaning.

Pellet durability and wet breakdown are assessed together. A pellet that survives delivery still needs to wet and separate as the product instructions require. Diameter alone cannot establish absorbency, comfort or suitability for horses.

The development programme includes controlled user evaluation with appropriate equine expertise. Hygiene, material suitability and dust performance require evidence before commercial claims are made. Frictional heat is not treated as a validated sterilisation process.

User evaluation also records the quantity needed to establish the bed and the material removed during cleaning. These observations support product instructions and a realistic cost comparison with the stable’s current bedding, without assuming that equal bag weights give equal service.

Budget 2,800 tonnes on the daily production schedule

The planning basis uses 800 kg/hour of accepted finished pellets from each press. Together, that is 1,600 kg/hour. Seven productive hours on 250 operating days give 2,800 tonnes annually, with startup, cleaning and maintenance outside those productive hours.

This is the bedding product budget. Required incoming paper is established from measured trial yield, including preparation losses, removed fines and moisture changes. The mill must confirm enough qualifying paper and buyer demand to support the schedule.

Commissioning records saleable tonnes and measured electricity per tonne alongside pellet dimensions and bedding-test results. The 189 kW motor total describes installed motor ratings, not actual energy consumption or the full department load.

Connect the presses to the mill’s working systems

The layout review covers feed distribution, discharge heights, cooler loading, screen return and bagging access. Equipment drawings establish foundation loads, lifting points and die-removal space before installation work starts.

The electrical review checks transformer capacity, simultaneous loads, motor starting and interlocks. Paper-dust extraction and fire and explosion protection follow the site’s material and process risk assessment. The quotation identifies the required documentation and responsibilities.

Staff planning allows one press operator and two positions across packing and pallet handling, with mechanical handling aids and shared mill maintenance support. Training covers feed changes, blocked-flow response, safe isolation and restart.

Transport planning can assess Qingdao to Hamburg, followed by inland delivery to North Rhine-Westphalia. Packing dimensions, unloading arrangements, spare dies and roller shells, and commissioning assistance are defined in the supply scope.

An enquiry for a paper mill extruder in Germany should include the paper specification and representative samples, available dry tonnes, preparation equipment and required bedding tests. RICHI Machinery can then assess the die and feeding arrangement against the buyer’s product requirements and the mill’s available utilities.

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