Arc sieves

Arc sieves in mining industry are applied for dewatering products after enrichment process in suspensions or in sedimentation processes. They can also be used for fine coal desludging or in sludge control against flotation. Excluding mining industry, arc sieves can be applied for different products dewatering or removing solids from water or other liquids. 

Advantages of the sieves:

  • Low level of vibration and noise,
  • Reliability,
  • Low costs of purchase and exploitation.


Moreover the sieves do not need a drive.

Arc sieves are produced in two different sizes of sieve insert radius, depending on capacity, kind of feed, size of solids and slots: R = 1018 mm or R = 2036 mm.







Width, B[mm] 1100 1300 1500 1700 1900 2100
Inlet screws spacing , a 5×208 8×155 6×164 10×184 10×184 10×204
Inlet width, b 960 1160 1360 1560 1760 1960
Active surface 0,78 0,93 1,09 1,25 1,4 1,56
Clearance Surface at the slot S[mm] in m2 0,5 0,129 0,154 1,181 0,208 0,233 0,258
0,75 0,179 0,214 0,251 0,287 0,322 0,356
1,0 0,22 0,263 0,308 0,354 0,396 0,438
Weight [kg] 580 650 690 745 800 880



Width, B[mm] 1100 1300 1500 1700 1900 2100 3000
Inlet screws spacing, a 5×208 8×155 9×160 10×164 10×184 10×204 15×196
Inlet width, b 960 1160 1360 1560 1760 1960 2860
Active surface 1,58 1,88 2,2 2,51 2,83 3,15 4,8
Clearance Surface at the slot S[mm] in m2 0,5 0,262 0,262 0,366 0,417 0,47 0,52 0,8
0,75 0,364 0,364 0,506 0,577 0,65 0,72 1,1
1,0 0,447 0,447 0,622 0,71 0,80 0,88 1,36
Weight [kg] 740 740 865 960 800 1120 1700


For each radius size the sieve insert can be made as standard in the following sizes: “B”: 1100, 1300, 1500, 1700, 1900, 2100, 3000. Besides of devices we also produce different arc sieve inserts, both acc. to our documentation and delivered by the customer. Depending on needs we offer slotted sieves in welded or loop variety in full range of slots sizes