Sauer 90R180 pump losing flow or case drain overheating on your heavy machinery? A worn 90R180 cylinder block allows piston bypass to grow until the pump can no longer maintain rated pressure at full displacement. RITO supplies this precision barrel to restore the 90R180 pump's volumetric efficiency and recover full displacement output.
Item NO.:
90R180Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock90R180 Cylinder Block for Sauer-Danfoss 90R180 / 90L180 axial piston pumps. The 90R180 series is a high-displacement pump used in heavy construction and industrial machinery. Precision-honed barrel bores and lapped valve-face surface restore the bore-to-piston clearance and sealing area that the 90R180 requires to sustain rated pressure at maximum displacement.
| Part Number | 90R180 / 90L180 |
|---|---|
| Part Name | Pump Cylinder Block (Sauer 90R/90L Series) |
| Compatible Brand | TONG MYUNG (Sauer-Danfoss 90R180 / 90L180) |
| Applicable Models | Heavy construction and industrial machinery with Sauer 90R180 / 90L180 pump |
| Application | Rotating group barrel of Sauer-Danfoss 90R180 / 90L180 high-displacement axial piston pump |
| Material | High-strength alloy steel |
| Product Color | Silver machined metal finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Houses the piston bores that generate hydraulic pressure and flow in the Sauer 90R180 pump |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Barrel bore geometry and wall thickness scaled for the 90R180 large-displacement piston load, maintaining structural integrity at full system pressure without bore distortion.
90R180 and 90L180 share the same barrel geometry; one part number covers both rotation directions, simplifying spare parts management for mixed-rotation pump applications.
Valve-plate mating surface lapped to Ra 0.2, maintaining the sealing clearance required for low case-drain flow at the high operating pressures typical of 90R-series applications.
Cylinder bores honed to Sauer 90R180 OEM clearance specification for correct volumetric efficiency at full displacement and rated pressure.
FAQ
Q: How do I confirm the 90R180 cylinder block is the source of pump flow loss?
A: Test case-drain flow at rated speed and pressure. Above OEM specification (typically 15-20 L/min for 90R180 class) confirms barrel or valve plate wear rather than a charge or relief circuit issue.
Q: Should I replace the valve plate when fitting a new 90R180 barrel?
A: Yes if the valve plate sealing face shows scoring, heat marks or surface steps. New barrel against a worn valve plate generates immediate sealing mismatch and re-scores the new surface within hours.
Q: What is the difference between 90R180 and 90L180?
A: 90R and 90L designate shaft rotation direction (clockwise and counter-clockwise viewed from the shaft end). The cylinder block part number is shared between both rotation variants; confirm your pump rotation direction when ordering the full pump, but the barrel itself covers both.
Q: How to confirm this barrel fits my 90R180 pump?
A: Match the existing pump model as 90R180 or 90L180 and confirm barrel bore count and diameter match. Provide the pump serial number to our team for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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