Come Funziona una Pompa a Ingranaggi Tandem?
Le pompe a ingranaggi tandem erogano flusso indipendente da un unico albero. Scopri come le pompe a ingranaggi…
| Parameter | Specification |
|---|---|
| Catalogue References | 20/925341; 7029120007 |
| Pump Type | Two-section tandem gear pump, black finish |
| Application | JCB 3CX / 4CX main pump enquiries; PIN and drawing confirmation required |
| Drive Shaft | Splined, profile per approved drawing |
| Mounting | 2-hole oval flange |
| Ports | Four-bolt main port; two opposite ports |
| Fitment Check | PIN, shaft, flange, ports, rotation, drawing approval |
| Customization | Shafts, flanges, ports, labels, cartons |
| Trade Term | EXW Hebei, China |
| MOQ / Lead Time | Confirmed on quotation |
| Brand / quality | Olive Branch Hydraulics / original-equipment quality (原厂原装品质) |
Olive Branch Hydraulics offers the 20/925341 two-section tandem hydraulic gear pump with original-equipment quality (原厂原装品质). It is offered for JCB 3CX and 4CX backhoe loader main pump enquiries, and it is also listed in catalogues as 20925341, 20-925341 and 7029120007. We build each unit against drawings or samples, and we confirm the match before production starts.
We do not treat a catalogue number as proof that a pump will fit. A match is approved only after the machine PIN, shaft, flange, ports, rotation and drawing have all been checked.
Distributors and workshops also search for this pump as bomba hidráulica 20/925341, pompe hydraulique 20925341 and гидронасос 20/925341. All orders ship EXW Hebei, China.
Several JCB 3CX / 4CX tandem pumps look alike from the outside and differ at the interfaces. The four checks below decide whether a 20/925341 unit is right for your machine.
| Check Point | What We Verify | What to Send |
|---|---|---|
| Machine PIN | Model and build variant of the 3CX / 4CX | Full PIN from the machine plate |
| Drive shaft | Spline profile, tooth count, length | Drawing, photo with ruler, or old pump |
| Mounting flange | 2-hole oval pattern, pilot, bolt centres | Flange drawing or measured photos |
| Ports and rotation | Four-bolt main port, two opposite ports, direction of rotation | Port photos from both sides; rotation viewed from the shaft end |
We state displacement, pressure and flow only on the approved drawing for your order. We do not publish generic figures for this reference.
You send the PIN, the reference (20/925341 or 7029120007), photos or a drawing, and the quantity.
We compare your data with our drawing and flag any interface that differs.
You approve the drawing, and the quotation follows.
Two-section tandem layout: two gear sections run in one housing from a single input. This matches the twin-circuit main pump arrangement on the backhoe loader.
Splined drive shaft: the spline is machined to the approved drawing. Spline profile and engagement length must match the drive coupling.
2-hole oval mounting flange: the flange pattern and pilot diameter are checked against your drawing or sample before machining is released.
Four-bolt main port with two opposite ports: port positions and thread or flange types follow the confirmed layout. Connection requirements must be approved against your machine layout.
Black painted finish: the standard external finish for this reference. Labels and markings are applied to your specification.
Configurable interfaces: shafts, flanges and ports can be modified to a customer drawing for OEM/ODM projects. Each modified version gets its own approved drawing.
The required direction of rotation is confirmed for every order.
Every order runs through the same sequence: drawing or sample matching, an optional small-batch trial, then pre-shipment inspection against the approved drawing. Inspection documents are issued for the specific order, and we do not quote generic certificates.
| Buyer Type | What We Provide | Commercial Basis |
|---|---|---|
| Wholesalers / distributors | Standard 20/925341 build, quantity-break pricing | Price tiers, MOQ and lead time per quotation |
| OEM / ODM projects | Custom shafts, flanges and ports to your drawing | Sample cost and trial quantity per quotation |
| Private label | Your labels, markings and printed cartons | Artwork approved before packing |
| Fleet and project buyers | PIN-matched units, split shipments by batch | EXW Hebei; inspection per batch |
Give us your quantity breaks and we will price each tier on one quotation. Carton dimensions, gross weight and units per carton are confirmed on the packing list once the order quantity is fixed.
The sequence is: requirement and drawing, sample or small-batch trial, your approval, then batch production. Your drawings, logos and packaging artwork are used only for your orders.
A first order can start as a small-batch trial before volume production. Trial quantity and sample cost are stated on the quotation.
Both references are quoted for this tandem pump, but we confirm the match by PIN and drawing, not by part number alone.
Not automatically. Shaft, flange, port layout and rotation can vary by build, so we approve fitment for each PIN.
The PIN, the reference number, the quantity, and either a drawing or clear photos of the shaft, flange and ports.
Yes. Custom shafts, flanges and ports are produced to an approved customer drawing.
All three are stated on each quotation. They depend on the configuration and the quantity.
Yes. Custom labels and printed cartons are available, with artwork approved before packing.
Each order is inspected against the approved drawing before dispatch. Available order-specific inspection documents are confirmed on quotation.
EXW Hebei, China. Payment terms are written on the proforma invoice.
JCB, 20/925341 and 7029120007 are used for reference only. They identify application and fitment and do not indicate any affiliation.
To get a drawing check and an EXW Hebei quotation with MOQ, sample cost and lead time, send us the machine PIN, the reference (20/925341 or 7029120007), shaft, flange and port photos or a drawing, the quantity and the destination market. If you need custom packing, include your label or carton requirements.
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