Hydraulic Pump Parts for Construction Machinery

Construction machines earn money by the hour. When a main pump loses pressure the machine stops, and the cost of waiting for a part quickly passes the cost of the part itself. Most of what we ship into this sector goes to rebuild shops and plant workshops that need a matched rotary group on the bench this week, not next quarter.

Construction Machinery hydraulic pump parts from SEIMT Hydraulics

Industry Pain Points

  • A main pump fails on site and the machine is on a contract with penalties for downtime
  • The original rotary group carries a long lead time for the size needed
  • Contaminated oil after a hose failure has taken out the pump and the travel motor together
  • Older machines still working hard are no longer supported by the original parts programme

What Customers In This Sector Need

  • A matched set rather than parts gathered from three suppliers
  • Sizes covering both the main pump and the travel and swing motors
  • Clear identification from a photograph of the nameplate
  • Stock availability confirmed before the machine is stripped

Products That Fit This Sector

  • A7VO and A8VO Series Rotary Groups manufactured by SEIMT Hydraulics

    A7VO and A8VO Series Rotary Groups

    A7V A7VO and A8VO bent axis rotary groups and spare parts in sizes 28 to 1000 for excavator and heavy mobile main pumps.

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  • A10VO Series Rotary Groups manufactured by SEIMT Hydraulics

    A10VO Series Rotary Groups

    A10VO and A10VD rotary groups and spare parts in sizes 16 to 140 for compact excavators skid steers and industrial power units.

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  • A11VO Series Rotary Groups manufactured by SEIMT Hydraulics

    A11VO Series Rotary Groups

    A11VO rotary groups and spare parts in sizes 35 to 500 for concrete pumps drill rigs and heavy mobile work functions.

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  • A4VG Series Rotary Groups manufactured by SEIMT Hydraulics

    A4VG Series Rotary Groups

    A4VG closed circuit rotary groups and spare parts in sizes 28 to 500 for self propelled machine drive circuits, supplied as matched sets.

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  • A6VM and A6V Series Rotary Groups manufactured by SEIMT Hydraulics

    A6VM and A6V Series Rotary Groups

    A6VM and A6V variable displacement motor rotary groups and spare parts in sizes 28 to 1000 for travel and drum drives.

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  • Cylinder Blocks manufactured by SEIMT Hydraulics

    Cylinder Blocks

    Cylinder blocks for axial and bent axis piston pumps with sintered bronze running faces bonded and machined after sintering then lapped flat.

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Typical Application Scenarios

  1. Excavator main pumpTwin A8VO units on machines from ten to fifty tonnes, rebuilt one section at a time or as a pair.
  2. Travel and swing motorsA6VM and A2FM units where loss of torque on a slope is the first symptom.
  3. Mini excavator and skid steerA10VO frames from size 16 to 140, the highest volume repair in the sector.
  4. Attachment and auxiliary circuitsVane pumps and gear driven auxiliary circuits on carriers and tool holders.

How the Solution Runs

Model CodeDrawing CheckMachiningHeat TreatmentInspectionPacking
  1. IdentifyPhotograph of the nameplate and the machine model sent on WhatsApp
  2. ConfirmWe read the code, confirm the frame and check stock the same day
  3. QuotePrice, lead time and packing confirmed by email
  4. ShipVacuum sealed set shipped by air or sea with photographs before dispatch

Delivery Capability

Common construction frames ship from stock. Air freight for a machine that is down, sea freight for planned overhauls and stocking orders. Every set is photographed before packing so the shop knows what is in the box.

1998Year the factory was founded
60+Countries and regions supplied
80%Share of output that is exported
1M+Spare parts held in stock
5,000Complete pumps held in stock
12 monthsWarranty on rebuilt pumps and parts

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Related Knowledge Articles

Frequently Asked Questions

Can you identify the pump from a photograph?
Yes. A clear photograph of the nameplate is usually enough. If the plate is gone, photograph the pump from several angles and give us the machine model.
Do you supply travel motor parts as well as main pump parts?
Yes. A6VM and A2FM motor parts are part of the same programme.
How fast can a rotary group reach a job site?
Stock items normally ship the same or next working day and reach most destinations by air within a week.
Can one section of a twin main pump be rebuilt alone?
Yes, although we recommend inspecting both sections while the pump is open.
Do you warranty parts used on rental machines?
The twelve month warranty applies the same way. Fluid cleanliness is the main thing that decides how long the repair lasts.

Tell Us the Machine and the Model Code

Tell us the model code stamped on the pump, the quantity and your delivery port. A quotation with lead time usually comes back within one working day.

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