60221647 Valve disc Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

60221647 Valve disc Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The Sany 60221647 valve disc is a core sealing and opening/closing component in the hydraulic system of Sany construction machinery. It is specially designed for various valve bodies such as relief valves, anti-reverse valves, and gate valves. Its core function is to achieve a tight seal with the valve seat, control the flow and shut-off of the medium, and undertake the key roles of sealing, pressure bearing, and opening/closing control. It is compatible with Sany and various mainstream construction machinery and is widely used in excavators, crawler cranes, loaders, and other models. It is suitable for harsh working conditions such as mining and infrastructure construction and is the preferred component for aftermarket maintenance, parts wholesale, and foreign trade export.
This valve disc relies on professional valve component manufacturing technology and strict quality control, and is made of high-quality alloy material. The sealing surface is precision welded and mirror-polished, and then precision cast, CNC machined, polished and anti-corrosion treated. It is dimensionally accurate and burr-free, with a surface hardness of HRC55-60. It has excellent wear resistance, corrosion resistance and pressure resistance. The sealing surface roughness reaches mirror level, which can effectively prevent media leakage and solve the pain points of valve disc wear, deformation, sealing failure and jamming. It extends the overall service life of valve and hydraulic system and is suitable for long-term harsh working conditions.

Core technical parameters:

– Product Model: 60221647
-Product Name: Valve Disc
– Compatible Brands/Models: Sany, excavators, crawler cranes, loaders, etc. (can accurately match specific models)
– Material: High-quality alloy (body), hard alloy overlay on sealing surfaces, surface anti-corrosion treatment, corrosion resistant and aging resistant.
– Structure type: Conical seal structure with self-grinding sealing surface, sensitive opening and closing, and prevention of media accumulation.
– Surface hardness: HRC55-60, sealing surface hardness ≥ HRC62, wear-resistant and impact-resistant.
– Machining process: Precision casting, CNC machining, sealing surface welding, mirror grinding, anti-corrosion treatment, dimensional accuracy and burr-free.
– Accuracy class: GB/T 10095.1-2008 Class 7
– Core dimensions: Diameter 75mm, thickness 12mm, sealing surface width 8mm
– Sealing method: Metal hard seal, sealing surface roughness ≤0.04μm, extremely low leakage.
– Maximum working pressure: 25MPa, capable of withstanding high-pressure hydraulic conditions.
– Operating temperature: -40℃~180℃, suitable for harsh high and low temperature environments, with excellent high temperature resistance.
– Service life: ≥10,000 hours (under normal operating conditions), with an opening and closing test capability of over 500,000 cycles.
– Implementation standards: GB/T 22652-2019, ISO international certification, conforming to valve industry standards.
– Weight: 0.52kg, compact structure, adaptable to equipment installation load.

The Sany 60221647 valve disc, made with high-quality materials, precision manufacturing, and accurate parameters, is suitable for the repair and replacement of hydraulic valves in various engineering machinery, meeting the needs of foreign trade, wholesale, and modification. The product undergoes rigorous testing and is free of defects such as porosity, sand holes, and leaks. It is easy to install, wear-resistant, and durable, and is compatible with valve bodies, seats, stems, and other components, enhancing sealing and opening/closing control performance, reducing downtime losses, improving operational continuity, and balancing cost-effectiveness and reliability.

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21 60221640 Pin
22 60221660 O-ring
23 60221647 Valve disc
24 60221643 Cylinder Block
26 60221659 Brake piston
27 60221644 Spring plate
28 60221663 Partition
29 60221645 Pressure Plate
30 60221646 Base Plate
31 60221655 O-ring
32 60221636 Piston
33 60221641 Drive shaft
34 60210759 Motor oil seal
35 60221652 Locking sleeve
36 60221630 Support ring
37 60221642 Pad
38 60221653 Rolling bearing
39 60221648 Protective Plate B
40 B220401000688 Rotary motor delay valve
41 150201010091A002 Sealed Package

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