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    Current Position: Home Products Roots Vacuum Pump

    Roots Vacuum Pump

    Model:ZJ150B


    The pump consists of two figure “8” shaped rotors and two semicircular pump houses. The rotors rotate synchronously in opposite directions and high speeding. The pump cannot be used singly; it must be used as boosters combined with a backing pump such as a rotary piston or a rotary vane vacuum pump, or a liquid ring vacuum pump. These vacuum systems can get higher vacuum, a stable, fairly high pumping speed can be gained in effective pressure range. The backing pump decides the ultimate pressure of roots pump. The data of the list is lowest ultimate pressure with the standard equipment (equipped double stage oil machine vacuum pump). The Roots pumps are widely used in vacuum moulding, vacuum smelting, vacuum gas pumping, vacuum coating industry, vacuum distilling and vacuum drying of chemical and pharmaceutical industry etc. The pump is insensitive to a little dust.

    Merit:
    1. The lack of reciprocating parts allows a perfect dynamic balancing, because the rotors is processed by numerical control machine tool and balanced carefully. It has perfect geometry symmetry. There is certain clearance between the two rotors. The pump house and end-cover is processed by especial machine tool. It has high precision. So the pump own feature of stable operation, low noise, low vibration and high ultimate pressure.
    2. The robust drive of ump and operating parts balanced carefully permit that the pump be stably operated continuously under the condition of high different pressure.?
    3.They can be started quickly, and in short time ultimate pressure is reached
    4. Lubrication is unnecessary as there is no contact between rotors, rotor and house, that avoid oil vapor from polluting vacuum system.
    5. Good reliability characteristic. Their inherent overflow valve play auto-protective role.
    6. Compact structure, low footprint design. There are three gas outlet ports that are in left, right and under pump house. It is convenient for consumer installing.

    ZJ、ZJP pum main perfomance-parameter table
    型號 Ultimate pressure(Pa) pumping speed(L/S) maximum permissible
    Different pressure
    (HPa)
    lnlet & outlet dimensions
    (mm)
    Power
    (kw)
    Max Compression ratio with zero throughput Weight(Kg)
    配用雙級油封
    機械真空泵
    配用單級油封
    機械真空泵
    lnlet outlet
    ZJP-70 ≤2x10-2 ≤1x10-1 70 100 80 50 1.5 ≥35 100
    ZJP-150 150 80 100 100 2.2/3 ≥40 220
    ZJP-300 300 80 150 150 4 ≥40 300
    ZJP-600 600 50 200 200 5.5/7.5 ≥45 575
    ZJP-1200 1200 50 250 200 11/15 ≥50 860
    ZJP-2500 2500 30 320 250 18.5/22 ≥50 1480
    ZJ-30 30 100 50 40 0.75 ≥30 55
    ZJ-70 70 100 80 50 1.5 ≥35 90
    ZJ-150 150 80 100 100 2.2/3 ≥40 210
    ZJ-300 300 80 150 150 4 ≥40 285
    ZJ-600 600 50 200 200 5.5/7.5 ≥45 550
    ZJ-2500 2500 30 320 250 18.5/22 ≥50 1480
    ZJ-5000 5000 30 400 320 37/45 ≥55 3400

    Series ZJP roots vacuum pump own the structure of overflow valve.


    Model A A1 A2 A3 A4 B B1 B2 B3 H H1 H2 H3 D D1 D2 d d1 d2 d3 d4 d5 m n p e f g k
    ZJ70 330 120 370 584 829 219 247 324 226 122 18 90 125 145 50 90 110 4 4 8 8 18
    ZJ150B 115 57.5 154 675 950 320 360 380 448 345 205 35 95 100 145 170 100 145 170 80 125 145 4 4 4 10 10 10 18
    ZJ150BJ 440 118 480 675 950 320 370 380 448 380 240 70 130 100 145 170 100 145 170 80 125 145 4 4 4 10 10 10 18
    ZJ300B 225 112.5 314 775 1125 320 360 370 452 345 205 35 120 150 195 220 150 195 220 100 145 170 8 8 8 10 10 8 18
    ZJ300BJ 600 197 640 775 1125 320 360 370 452 380 240 70 155 150 195 220 150 195 220

    100

    145 170 8 8 8 10 10 8 18
    ZJ600B 170 85 250 896 1270 500 550 570 610 530 320 40 170 200 250 285 160 200 225 160 200 225 8 8 8 10 10 10 18
    ZJ5000 655 327.5 880 1915 2720 1020 1120 1150 1200 1050 600 40 250 400 480 510 320 395 425 320 395 425 16 12 12 12 12 12 32

    Series ZJP roots vacuum pump own the structure of overflow valve.

     

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