lw series horizontal spiral discharging sedimentation centrifuge

 Structures and properties

Model LW centrifuge is the mechanical equipment used for continuously separation the materials in the suspension with density difference, by the principle of centrifugal settling. The basic principle is the drum and the spiral feeder rotate in the same direction but with a certain speed difference; The material is led into the feeding spiral inner cylinder via the feeding pipe and after speeding up, enters the drum; Under the action of the centrifuge force field, the relatively heavier solid-phase material deposits on the drum wall forming the residue layer; The solid-phase residue is continuously pushed by the spiral feeder to the conic end of the drum and after dehydration in the drying area, is discharged under full-speed running. It enjoys such features as compact structure, continuous operation, smooth running, strong adaptability to the separation material, large handling capacity, convenient maintenance, etc.

Order Notice

  • Material: The parts contacting the processing material can be made of carbon steel, special stainless steel, titanium alloy, etc.
  • Antifriction treatment: spiral feeder coated with abrasion resistance material, or inlaid with hard alloy slice, or corundum ceramic plate, the sludge outlet can be inlaid with hard alloy bush or corundum ceramic bush.
  • Structure type: counter flow type, concurrent flow type and three phase separating type. Speed adjustment: stepless speed regulation of the drum rotation; spiral differential speed adjustable at will.
  • Bearing lubrication: with grease lubrication, oil lubrication or forced oil circulation lubrication for option.
  • Safe protection: with over-vibration protection, bearing temperature on-line checking, display & overheating protection or motor overheating protection for option.
  • It can be designed and manufactured as per GMP specifications.


The centrifuge is applicable to the separating of the suspension containing solid-phase granules with the diameter greater than 0.005mm and with the concentration being 2-40%. It has found wide applications in such trades as chemical, light industry, pharmacy, food, environmental protection, etc. for example: adipic acid, alum, aluminum hydroxide, ammonium hydrogen carbonate, ammonium chloride, ammonium nitrate, ammonia sulfate, anthracene, antibiotics, barium chloride, barium carbonate, barium sulfate, benzene, benzene carbonic acid, blood products, blue vitriol, borax, boric acid, pot ale, calcium carbonate, calcium citrate, calcium hydroxide, calcium nitrate, calcium oxalate, casein, fiber, chrome pillow, clay, methylcellulose, coal flotation waste, corundum, velveteen, corn embryo, starch, coconut milk, food oil, fish processing, salt cake, mirabilite, hops, pesticide, diatomite, herbicide, tartaric acid, sodium sulfate, sodium phosphate, sodium nitrate, charcoal black, etc.

main tachnical parameters

型号 Model 转鼓形式 Structure  type 转鼓 Rotating  drum 转鼓最 高转速 Rotating  speed (r/min) 最高分 离因素 Separation  factor 混合液 处理量 Processing  capacity  of  admixtures  (m3/h) 电机功率 Motor  power(kw) 主机重量 Total  weight
长度 Dia.(mm) 长径比 Length-to -diameter  ratio
LW230 逆流式 Counter  flow  type 700-920 3-4 4800 3400 0.5-1 7.5 800-1150
LW355 逆流式 Counter  flow  type 860-1460 2.42-4.11 3500 2500 2-8 18.5+5.5 1800-2130
LW450 Counter  flow  type 1350-1800 3-4 3000 2300 6-20 30+11 2360-2730
LW630 逆流式 Counter  flow  type 1900-2500 3-4 2200 1700 10-30 30+15 4800-5140
LW710 逆流式 Counter  flow type 1800-2500 2.5-3.5 1800 1300 15-45 37+18.5 5750-6350

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