Trust Center
Everything on this page is either a photograph from our own plant or a figure the company publishes about itself. Where we cannot evidence something, we say so rather than filling the gap with a claim.
Company Record
The Plant
Guli Industry Zone, Jiangning District, Nanjing. Every photograph below is our own.



What We Commit To
- Rebuilt Pumps Are Tested Before PackingEvery rebuilt pump is run on the test bench and checked for volumetric efficiency, external leakage and sound level before it is boxed.
- Replacement Parts Are Inspected IndividuallyMachined parts pass dimensional and hardness inspection. Anything outside the drawing is scrapped rather than sorted into a second grade.
- Heat Treatment Follows the Original ProcessCase hardening, carburising and nitriding follow the same route as the original part so surface hardness and core toughness match.
- Hard To Find Parts Stay AvailableWe carry parts that the original equipment maker has moved off its price list, which keeps older machines earning.
- Twelve Month WarrantyRebuilt pumps and machined parts carry a twelve month warranty on the same terms as new original parts.
- Stock Ships the Same DayMore than one million spare parts and around five thousand complete pumps sit on the shelf, so most orders ship from stock.
Production Route
- Turning and millingBlanks are turned and milled from certified bar and forging stock on CNC machines.
- Heat treatmentCarburising, quenching, tempering or nitriding to the route the original part uses.
- GrindingBores, spline seats and running faces are ground after heat treatment so distortion is removed.
- Lapping and superfinishingValve plates, shoe faces and block faces are lapped so the pair seals under pressure.
- InspectionDimensions, hardness and surface finish are recorded against the drawing on a sampling plan.
- Assembly and testComplete pumps are built, run in and tested for efficiency, leakage and noise before packing.
Inspection and Test
- Incoming material certificates are checked against the grade called for on the drawing.
- Hardness is measured after heat treatment on every batch and recorded on the batch card.
- Critical bores and running faces are gauged against the drawing tolerance, not against a sample part.
- Mating parts are matched as a set so the block, shoes and valve plate run in together.
- Rebuilt pumps are bench tested for volumetric efficiency, external leakage and sound level.
- Parts are cleaned, oiled and vacuum sealed so they arrive without surface rust.
Documentation Supplied With An Order
| Material certificate | Mill certificate for the steel grade used in the batch |
|---|---|
| Hardness report | Surface and core hardness readings after heat treatment |
| Dimensional report | Measured values for the critical features named on the drawing |
| Test bench report | Flow, efficiency, leakage and sound readings for a rebuilt pump |
| Packing list and photographs | Carton contents and photographs of the packed goods before shipment |
Where a customer needs an approval or certification not listed here, we will say plainly whether we hold it rather than implying that we do.
Customer Feedback
Conversations reproduced with permission and with names removed.
Project Cases
Excavator Travel Motor Rebuild Programme in Turkey
Read the CaseStocking Cartridge Kit Programme for a German Distributor
Read the CaseMarine Winch Pump Refit for a Canadian Repair Yard
Read the Case
Frequently Asked Questions
Which certifications do you hold?
Can we visit the factory?
Can we audit your process?
How do I verify the numbers on this page?
Do you have export experience with our country?
Ask Us To Verify Anything On This Page
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.