SK-8 LD Foot Valve for Kobelco SK-8 Series Excavator spare parts

Short Description:

The SK-8 LD Foot Valve is an upgraded labor-saving and low-resistance enhanced version of the standard KLS foot valve, specially optimized for Kobelco SK-8 series excavators including SK200-8, SK210-8 and SK250-8.

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Product Detail

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description

Different from the conventional resistance single structure of ordinary KLS standard foot valves, the SK-8 LD upgraded foot valve adopts customized low-resistance hydraulic channel design, with internal flow resistance reduced by nearly 30% compared with standard models, realizing ultra-labor-saving pedaling operation. The internal valve core and valve sleeve adopt micron-level ultra-precision grinding and pairing technology, with tighter fitting tolerance, effectively eliminating hydraulic stagnation and pressure loss, and making travel and swing action linkage more synchronous and sensitive. Equipped with upgraded thickened high-toughness alloy double-strength return spring group, the reset speed and reset completeness are comprehensively improved, completely solving common faults such as slow reset, incomplete return and jitter of standard foot valves. The high-density reinforced integral cast iron valve body has stronger vibration resistance and structural stability, adapting to long-term chassis vibration of SK-8 series excavators. The surface adopts upgraded multi-layer anti-rust, anti-corrosion and anti-fouling coating, matched with thickened dust-proof structure to isolate mud, dust and moisture erosion.

product parameters

Product Model: SK-8 LD Foot Valve (Labor-saving Low-resistance Upgraded Version)

Product Type: 20-ton-class Medium Excavator LD Upgraded Hydraulic Foot Control Valve

Applicable Equipment: Kobelco SK200-8, SK210-8, SK250-8 Series Excavators

Structural Feature: Exclusive LD Low-resistance Oil Circuit, Double-strength Reinforced Reset Spring, Micron-level Precision Spool-sleeve Pair, Enhanced Anti-fouling & Anti-corrosion Structure

Core Material: Reinforced High-density Cast Iron, Ultra-wear-resistant Valve Core, Upgraded High-elasticity Alloy Spring, Thickened Nitrile Sealing Group

Working Characteristics: Ultra Labor-saving, Linear Hydraulic Output, Fast Full Reset, Zero Stagnation, Anti-fatigue & Anti-jitter

Core Function: Upgrade and replace KLS standard foot valve, solve hard pedaling and reset lag faults, improve long-term operation comfort and control precision

Applicable Working Conditions: Heavy-load earth-rock excavation, quarry operation, long-term high-frequency travel & swing continuous construction

Supporting Matching Parts: Foot valve pressure plate, fixing bolts, thickened dust-proof rubber sleeve, travel hydraulic pipeline

advantages

Exclusive LD Low-resistance Labor-saving Upgrade: Adopts custom optimized low-resistance oil circuit, reducing internal hydraulic resistance by nearly 30% compared with KLS standard version. The pedaling hand feel is ultra-light and smooth, completely solving the pain point of foot soreness and fatigue caused by hard pedaling of standard valves during all-day high-frequency operation.
Double-strength Fast Full Reset System: Upgraded high-toughness alloy reinforced spring group increases reset power and speed by 35%. It realizes instant and complete neutral return after foot release, thoroughly eliminating common defects of standard valves such as slow reset, residual displacement and operation jitter.
Micron-precision Matching & Linear Hydraulic Output: Ultra-fine grinding spool-sleeve pairing minimizes hydraulic stagnation and pressure loss. The pilot pressure output is stable and proportional, making travel speed conversion and swing braking action more smooth and precise without lag or stuttering.
Reinforced Anti-vibration & Anti-corrosion Performance: High-rigidity reinforced cast iron structure resists long-term chassis vibration without deformation. Upgraded multi-layer protective coating effectively isolates dust, sediment and muddy water erosion, adapting to harsh quarry and earth-rock working conditions.
100% OEM Zero-error Compatibility: All installation dimensions, hole positions and hydraulic parameters are consistent with SK-8 original factory standards. Direct plug-and-play replacement without any modification, keeping original machine hydraulic logic and operating habits unchanged.

FAQ

Q1: What is the core difference between LD upgraded version and KLS standard version?
A: The KLS standard version adopts standard resistance and ordinary reset speed, suitable for daily light and medium conventional working conditions. The LD version is upgraded with low-resistance labor-saving oil circuit and double-strength reset structure, featuring lighter pedaling, faster full reset, more linear hydraulic output and stronger anti-fouling performance, specially for long-term heavy-load high-frequency harsh working conditions.
Q2: Will the labor-saving design of LD foot valve affect original machine control accuracy?
A: No. The LD version only optimizes internal flow resistance and reset structure, all original hydraulic pressure, stroke and proportional parameters remain unchanged. The labor-saving design makes hydraulic feedback more delicate, effectively improving travel and swing fine control accuracy.
Q3: Which models is SK-8 LD foot valve suitable for?
A: It is fully compatible with all Kobelco SK-8 series mainstream models including SK200-8, SK210-8, SK250-8, with universal installation and hydraulic parameters for direct replacement of original standard foot valves.
Q4: Is hydraulic debugging required after installing LD upgraded foot valve?
A: No debugging is required. All parameters fully comply with SK-8 original factory specifications. Plug-and-play installation will not change original machine action logic, braking performance and operating hand feel.
Q5: Can SK-8 LD foot valve be used on SK-6/SK-7 series?
A: No. The installation hole positions, oil circuit layout and hydraulic parameters of SK-8 series foot valves are different from SK-6/SK-7, which cannot be interchanged and installed.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.