Specifications
| Item | Value |
|---|---|
| Material | Aluminium A356 / AlSi7Mg, A380, carbon steel 45 / AISI 1045, ductile iron QT500-7 |
| Process | Silica sol investment casting, CNC milling and boring, port drilling and threading |
| Tolerance | Casting ISO 8062 CT5 to CT7; bore diameter +/- 0.02 mm, flatness 0.05 mm on sealing faces |
| Surface finish | As-cast Ra 6.3 um; machined sealing faces Ra 1.6 um; anodised, phosphated or painted to order |
| Weight range | 0.8 kg to 7.5 kg per piece |
| Heat treatment | T6 solution and artificial ageing for aluminium; normalising or quench and temper for steel grades |
| Inspection | CMM, bore gauge and surface roughness check, 100 percent pressure or leak test, dye penetrant, spectrometer, optional X-ray on critical zones |
Key features
- Machined sealing faces and port threads hold hydraulic pressure without gasket extrusion or weeping.
- Bearing and gear bores finish bored for correct shaft alignment and pump efficiency over the duty cycle.
- Cast-in mounting feet and port bosses remove brazed or welded assemblies and potential leak paths.
- Controlled wall thickness in the pressure cavity supports the required burst and fatigue margins.
- Aluminium construction cuts weight in the cab tilt assembly and improves service handling.
- Every housing is leak or pressure tested before release, with test pressure recorded per serial number.
- Optional anodising or phosphate coating protects against hydraulic fluid and road spray corrosion.
Applications
- Truck cab tilt hydraulic pump bodies for medium and heavy commercial vehicles.
- Hand and electric cab tilt pump assemblies on long haul tractor units.
- Hydraulic lift pump housings for refuse truck and mixer truck bodies.
- Tilt and lift pump bodies for agricultural and forestry machine cabs.
- Auxiliary hydraulic pump housings on special purpose commercial vehicle chassis.
Quality and compliance
Ningbo Ruican produces cab tilt pump housings within an IATF 16949 certified process, supplying PPAP and FAIR documentation to hydraulic system manufacturers and truck OEMs. EN 10204 3.1 material certificates are issued for each heat, and pressure test records are retained and traceable by serial number. Cleanliness checks and contamination control are applied for hydraulic service parts.
FAQ
Q1: What pressure testing do you perform on the housing?
We run 100 percent pressure or leak testing to the pressure and hold time on your drawing, typically well above working pressure, and record the result for each part.
Q2: Do you recommend aluminium or steel for a cab tilt pump body?
Aluminium A356-T6 is common where weight matters and working pressure is moderate. Steel or ductile iron is chosen for higher pressure or where the housing is structural in the assembly.
Q3: Can you hold the flatness needed for a face seal?
Yes. Sealing faces are finish machined and verified for flatness and roughness, and we machine the housing and cover in matched sets where specified.
Q4: How do you control cleanliness for hydraulic components?
Parts are deburred, washed and dried, then sealed before packing. We follow the cleanliness specification on your drawing and can provide particle count or gravimetric results.
Q5: Can you help redesign a welded housing as a single casting?
Yes. Send the assembly drawing and we will propose a one piece cast design, review wall sections and port layout, and quote tooling and piece price.
Q6: What volumes do you support for this part?
We handle pilot runs of a few hundred pieces up to series production of tens of thousands per year, with the casting process staying the same across the ramp.
