60357904 Logic Valve for Bucket 1 Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

60357904 Logic Valve for Bucket 1 Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

As a core, dedicated control component of the excavator’s boom hydraulic system, the 60357904 boom 1 logic valve boasts four major advantages: precise logic, fast response, tight sealing, and strong adaptability. It is widely used in excavators such as the 920D(Ⅱ) and 922D(Ⅱ) series, responsible for the on/off, reversing, and logical linkage control of the boom 1 valve core’s oil circuit. Driven by a pilot signal, it can work with the boom 2 logic valve to achieve confluence and regeneration functions, preventing abnormal boom movements, ensuring stable circuit operation, adapting to specific machine models, and offering convenient installation.
Compared to ordinary logic valves, this product uses high-quality materials and is precision-machined, strictly adhering to relevant industrial standards. The main body is made of 45# forged steel (stainless steel can be customized), with a conical valve core seal and FKM sealing elements. Manufactured through multiple processes, it boasts a dense, defect-free structure, high pressure resistance, wear resistance, and corrosion resistance, effectively solving problems such as logic disorder and seal failure, and reducing maintenance costs. Its cartridge design allows for valve core installation on the boom, saving space and adapting to medium- and high-pressure conditions. It balances precision and flexibility, improving the energy efficiency and operability of boom operations.

Core technical parameters:

-Product Model: 60357904
-Product Name: Stick 1 Logic Valve (Exclusive for Excavator Sticks, Used for Hydraulic Logic Control)
– Compatible models/scenarios: 920D(Ⅱ), 922D(Ⅱ) and other series excavators, boom 1 valve core control and confluence circuit (specifications available for verification)
–  Structure type: Two-way plug-in type, consisting of plug-in, cover plate, and pilot element, supporting modular combination, realizing boom hydraulic circuit control, and adapting to regeneration and merging functions.
– Material Specifications: Body made of 45# forged steel (304/316L stainless steel can be customized), valve core hardened conical, seals FKM, surface anti-corrosion, conforming to GB/T 2877 cartridge standard.
– Dimensions: Compatible with DN16 pipes, nominal diameter 16mm, valve body length 68mm, inlet/outlet diameter 16mm, cartridge mounting hole conforms to standard, tolerance GB/T 1804-m, flatness ≤0.005mm
– Pressure parameters: Rated working pressure PN31.5MPa, maximum burst pressure 94.5MPa, leakage ≤0.01ml/h, response time ≤4ms
-Mechanical parameters: Rockwell hardness HRC42-47, tensile strength ≥550MPa, impact toughness ≥85J/cm², flexible valve core without jamming, precise logic switching.
-Environmental parameters: Operating temperature -40℃ to 120℃, suitable for excavator working conditions with high dust, oil, and strong vibration; rust-resistant and anti-aging; meets GB/T 14039 pollution level requirements.
– Machining process: Precision forging + CNC turning + precision grinding + corrosion protection + logic debugging, burr-free surface, precise dimensions, and fits snugly to the valve core of the boom.
-Installation method: Plug-in installation, fixed with boom hydraulic block, adjust according to circuit requirements, keep the installation surface clean, and avoid violent installation and overloading.
-Quality Standards: Compliant with standards such as GB/T 7934-1987, fully tested, and accompanied by a certificate of conformity; compatible with excavator stick control standards.
-Service life: ≥5000 hours under normal operating conditions, ≥3000 hours under high pressure and heavy load, far exceeding that of ordinary aftermarket products.

Our 60357904 stick 1 logic valve undergoes rigorous testing and debugging, ensuring traceable quality and reliable after-sales service. We support bulk purchasing and customization, precisely matching the excavator stick 1 hydraulic circuit to resolve abnormal stick movement issues. It is the preferred core component of the stick hydraulic system.

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22 60100467 Blocked
26 60075542 (Traffic jam)
27 60202293 O-ring
31 60075591 Spring
32 60075548 Check valve
38 60357901 Flange
39 60357906 Logic control valve
40 60357904 Boom 1 Logic Valve
41 60281369 Square circle
42 150602080013A007 Bolt
43 60075549 Check valve
44 150602080013A028 Spring
45 60075540 (Traffic jam)
47 60075552 Valve cover
48 60100512 Socket headstock screw
51 60319532 O-ring
60 60221657 O-ring

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