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VG22D Hydraulic Gear Pump - Quality Replacement from China Suppliers & Factory for Injection Molding Machines

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Introducing Our Double Pump Solutions

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Our double pump system features a sophisticated design, integrating two single pumps in series for optimal performance. This configuration provides a single oil inlet and independent oil outlets, allowing for flexible displacement options across multiple series, including VG10D, VG11D, VG21D, and VG22D.

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As a leading factory and supplier in China, we specialize in delivering high-quality double pumps tailored to meet diverse industrial needs. Our products are engineered to offer reliability and efficiency, making them an ideal choice for various applications. Discover the advantages of our double pump systems and how they can enhance your operations.

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    Product Features

    The front and rear oil pumps adopt floating flower-splined coupling structure, with a unique grease formula to ensure stable performance, long life and low noise of the oil pump;
    The maximum displacement can be extended to 320CC, which provides enough choice space for motor and driver selection and model selection;
    The direction of oil outlet and suction outlet of oil pump is flexible and easy to install;
    Any displacement combination, to meet the needs of different working conditions.
    Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines VG11D (1)
    VG11D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines
    VG21D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines
    VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

    Model Designation

    VG11D -63 -40 R E W -A1
    Series ml/r
    Flow code of shaft
    end pump
    ml/r
    Flow code of cover
    end pump
    Rotation
    direction
    Shaft type Sealing material Design number
    VG10D 25、32、40、50、63 8、10、13、16、
    20、25
    Viewed from
    shaft end of
    pump

    R=Right hand for
    clockwise

    L-Left hand for
    counter-
    clockwise
    E=Straight key
    shaft

    R=SAE Spline shaft
    W=(Buna)
    NBR

    V=FKM
    A1
    VG11D 25、32、40、50、63 25、32、40、50、63
    VG21D 80、100、125、
    145、160
    25、32、40、50、63
    VG22D 80、100、125、
    145、160
    80、100、125、
    145、160
    Installation-Dimensions
    Front
    pump
    L1 L2 Rear pump
    80 100 125 145 160
    L3 L4 L3 L4 L3 L4 L3 L4 L3 L4
    80 109.5 238.5 233 437                
    100 114 247.5 237.5 446 242 455            
    125 120 259.5 243.5 458 248 467 254 479        
    145 124.8 269 248.3 467.5 252.8 476.5 258.8 488.5 263.5 498    
    160 129 277.5 252.5 476 257 485 263 497 267.8 506.5 272 515
    Installation-Dimensions
    Front
    pump
    L1 L2 Rear pump
    25 32 40 50 63
    L3 L4 L3 L4 L3 L4 L3 L4 L3 L4
    80 110 231 205 380 208 387 211.5 394 216.5 404 223.5 418
    100 114.0 240 209.0 389 213 396 216 403 221 413 228 427
    125 120 252 215 401 218.5 408 222 415 227 425 234 439
    145 125 262 220 411 223.3 418 227 425 232 435 238.8 448.5
    160 129 270 224 419 227.5 426 231 433 236 443 243 457
    Installation-Dimensions
    Front
    pump
    L1 L2 Rear pump
    25 32 40 50 63
    L3 L4 L3 L4 L3 L4 L3 L4 L3 L4
    25 73 161 161 300                
    32 76.5 168 164.5 307 168 314            
    40 80 175 168 314 171.5 321 175 328        
    50 85 185 173 324 176.5 331 180 338 185 348    
    63 92 199 180 338 183.5 345 187 352 192 362 199 376
    Installation-Dimensions
    Front
    pump
    L1 L2 Rear pump
    08 10 13 16 20 25
    L3 L4 L3 L4 L3 L4 L3 L4 L3 L4 L3 L4
    25 73 153.5 138.5 264.5 140.5 268.5 143.8 275 146.5 280.5 150.5 288.5 154.5 296.5
    32 76.5 160.5 142 271.5 144 275.5 147.3 282 150 287.5 154 295.5 158 303.5
    40 80 167.5 145.5 278.5 147.5 282.5 150.8 289 153.5 294.5 157.5 302.5 161.5 310.5
    50 85 177.5 150.5 288.5 152.5 292.5 155.8 299 158.5 304.5 162.5 312.5 166.5 320.5
    63 92 191.5 157.5 302.5 159.5 306.5 162.8 313 165.5 318.5 169.5 326.5 173.5 334.5

    FAQ

    Q Can the two pump sections of the VG double pump have different displacements (flow rates)?

    Yes, absolutely. A key feature of our VG double pump series is the ability to combine two cartridge assemblies (pump sections) with different displacements. This flexibility allows you to create a compact, custom flow solution perfect for applications like:

    • Plastic Injection Molding Machines: High flow for fast mold closing, lower flow for high-pressure injection.
    • Machine Tools: High flow for rapid traverse, lower flow for precise feed motion.
    Q How is the pressure rating handled for each section of the double pump?

    Each pump section within the VG double pump has its own independent outlet port and is rated for its own maximum operating pressure (as listed in the technical specifications). This means:

    • Circuit A can operate at its maximum rated pressure (e.g., 250 bar).
    • Circuit B simultaneously operates at a different pressure (e.g., 150 bar), as determined by the load in each circuit and their respective pressure relief valves.
    • The common shaft and bearings are designed to handle the combined loads from both sections.
    Q If one pump section fails, does the entire double pump unit need to be replaced?

    No, in most cases, the entire unit does not need to be replaced. The modular design of the VG double pump allows for individual repair or replacement of the faulty cartridge assembly (pump section). This serviceability feature:

    • Reduces Downtime: You can service only the failed section.
    • Lowers Lifecycle Cost: It is more economical than replacing the complete pump assembly.

    We provide comprehensive support, including detailed documentation and availability of repair kits and individual cartridges to minimize your maintenance overhead.

    Q What are the key benefits of the floating flower-splined coupling structure?

    The floating flower-splined coupling structure, combined with our unique grease formula, ensures exceptionally stable performance, a long service life, and low noise levels for the front and rear oil pumps during operation.

    Q What is the maximum displacement capacity for the VG series pump?

    The maximum displacement of the VG series can be extended up to 320CC. This wide range provides ample selection space for motor and driver pairing as well as model selection.

    Q Is it easy to adjust the installation direction of the oil outlets?

    Yes. The direction of both the oil outlet and the suction outlet of the oil pump is highly flexible, which simplifies the installation process and accommodates various pipeline layouts.

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