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ZG Series Drum Pulper


Description of Drum Pulper

Drum type hydrapulper is mainly used in the paper making industry to breaking continuously and coarse screening of the waste paper material under the high consistency. It can maximum keep the physical property of the fiber.


  • Mainly used for continuous gentle pulping and coarse screening of waste paper under high consistency. Drum pulper can continuous pulp and preliminary screen, simple process.
  • It can gently pulp under 14%-18% high consistency to uttermost maintain the physical property of fiber.
  • Low damage to impurities and high efficiency of deslagging, which reduce the following equipment burden.
  • Low energy consumption, reduce running cost, improve the competitiveness for per ton pulp.
  • Long pulping residence time, sufficient fiber relief, low rate fine fiber loss.
  • Few quick-wear parts, continuous pulping, low maintenance cost.


Technical Data of Drum Pulper

Type ZG2500 ZG2750 ZG3000 ZG3250 ZG3500 ZG3750 ZG4000 ZG4250
Drum Diameter (mm) Φ2500 Φ2750 Φ3000 Φ3250 Φ3500 Φ3750 Φ4000 Φ4250
Processing Capacity(t/d) 70-120 140-200 200-300 240-400 400-600 550-800 750-1000 1000-1400
Work capacity(%) 14-18
Motor  power(Kw) 132-160 160-200 280-315 315-400 560-630 630-800 800-1000 1000-1400

Work Principle

Drum pulper set pulping and coarse screening with a body, used for continuous pulping all kinds of waste paper( newspaper, industrial board paper, mixed waste paper, etc.), and coarse screening the paper pulp after pulping, reject treatment equipment.

Drum pulper interior division pre-soaking area, high consistency pulping area and screen area three industrial areas, waste paper raw material will from the conveyor into pre-soaking area first, after soaking ,the waste paper then into the high consistency pulping area, under the consistency of 14% to 20%, with the rotation of the drum, the waste paper is took up by the lifting board on the inner wall, fall after rise to a certain height, and impact with the hard  inner surface, so the waste paper in pulping area after repeated falls and strikes, under the mild  pulping action of shear force and friction, was dissociated into single fiber, and the thin film,plastic, cloth and other impurities in the waste paper are not broken.

Waste paper pulp after breaking will go along the dip Angle under the drum drive, from pulping area into the screening area; on the above of screening area equipped with a flush water pipe , the pulp will washed and diluted once entered the screening area, the pulp consistency will down to 3-4%. Now,the acceptable fiber through screen holes into the pulp chest, rough impurity is blocked by screen plate , stay in screening area and constantly elutriated, finally discharge from discharge mouth at the end of drum .


Zhengzhou Leizhan Technology Paper Machinery Co., LTD., founded in the year 1980, is a professional manufacturer in researching and developing complete sets of waste paper pulp equipment. Our waste paper recycling plants and pulp equipment are highly praised by customers in paper making industries around the world.

Leizhan paper pulp machine are mainly about pressure screen( M.C. pressure screen, Inflow pressure screen ), Drum Pulper VS D type Hydrapulper, Bale Opener, waste paper Chain Conveyor, Pulp Pump, Vertical Hydrapulper, Light Impurity Separator, Auto-cleaning Vibrating Screen, Reject Separator, refiner equipment, etc.

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Zhengzhou Leizhan Technology
Paper Machinery Co., LTD.

Tel : +86-371-5512-9198
WhatsApp: +86-13783579051