Liaocheng mini excavator

  • US20110061755A1 - Hydraulic circuit system for …

    In the present embodiment, the pressure of the relief valve 38B included in the first over-load relief valve unit 38 and the pressure of the relief valve 39B included in the second over-load relief

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  • HYDRAULIC PARTS,CMP Technology Co., Limited

    0816204 Hitachi ZAXIS330 ZX350 ZX370 Excavator Pressure Relief Valve. 0719116 Hitachi Excavator ZX330 ZX370 EX300-5 Pressure Relief Valve. Komatsu PC220LC-6 PC230-6 PC250-6 Relief Valve Assembly 708-2L-04531. Hyundai Boom Seal Kits 31y1-15880 for R210LC-7.

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  • Hitachi Excavator Valves | Main Control Relief Valves

    Finotek offers Hitachi excavator valves for pressure relief, used for EX and ZAXIS Excavator series, Hitachi excavator valve in excavator suffers rigorous working condition for construction industry, therefore, finding a reliable supplier is a good backup for your normal mechanical maintenance, saving your cost in your market.

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  • US5642616A - Fluid pressure control system for hydraulic

    The pilot relief pressure can be changed by way of increasing or decreasing the electric current fed to the electronic relief valve 108, since the pilot relief pressure varies in a reverse proportion to the intensity of the electric current, as shown in FIG. Apparatus for controlling the …

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  • Why Komatsu PC200-6 Hydraulic Pump System Work Powerlessly

    Mar 01, 2019 · Low Pressure for The Main Pump. PC200-6 excavator uses a double swash plate type axial variable displacement piston pump. normally the main pump output oil pressure over 30mpa. if the wear circumstance between the piston and the cylinder block of main pump or the wear circumstance between the top surface of the cylinder block and the valve

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  • PC2000-11 surface mining hydraulic excavator | Komatsu

    Relief valve setting: Attachment circuits: Backhoe: 29.4 MPa 300 kgf/cm 2 Travel circuit: 32.9 MPa 335 kgf/cm 2 Swing circuit: 29.4 MPa 300 kgf/cm 2 Pilot circuit: 3.2 MPa 33 kgf/cm 2: Hydraulic cylinders: (Number of cylinders – bore x stroke) Backhoe Boom / 2: 300 x 2 647 mm

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  • 095420-0260 Limiter Pressure Relief Valve 095420-0281

    High quality 095420-0260 Limiter Pressure Relief Valve 095420-0281 095420-0140 High Quality Popular from China, China's leading Excavator Spare Parts product market, With strict quality control Excavator Spare Parts factories, Producing high quality 095420-0260 Limiter Pressure Relief Valve 095420-0281 095420-0140 High Quality Popular products.

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  • US20110061755A1 - Hydraulic circuit system for hydraulic

    A hydraulic circuit system for a hydraulic excavator, which has a hydraulic circuit for an attachment, includes: a directional control valve 16 that supplies a hydraulic fluid to an attachment connected to the hydraulic circuit for an attachment; a first over-load relief valve unit 38 that is provided in one of lines of the hydraulic circuit for an attachment; a second over-load relief valve

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  • Chapter 4 Excavator Computational Model - Virginia Tech

    Figure 4.2 Excavator Hydraulic System (Nichols 1976) Figure 4.1 and Figure 4.2 show some major upper-body mechanical parts and hydraulic circuits. The upper-body mainly consists of a bucket, a stick, a boom and a swing device. The hydraulic system has parts such as oil tanks, pumps, pipelines, relief

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  • 095420-0260 Limiter Pressure Relief Valve 095420-0281

    High quality 095420-0260 Limiter Pressure Relief Valve 095420-0281 095420-0140 High Quality Popular from China, China's leading Excavator Spare Parts product market, With strict quality control Excavator Spare Parts factories, Producing high quality 095420-0260 Limiter Pressure Relief Valve 095420-0281 095420-0140 High Quality Popular products.

    Learn More
  • US5642616A - Fluid pressure control system for hydraulic

    The pilot relief pressure can be changed by way of increasing or decreasing the electric current fed to the electronic relief valve 108, since the pilot relief pressure varies in a reverse proportion to the intensity of the electric current, as shown in FIG. Apparatus for controlling the …

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  • Excavator Relief Valve Pressure Relief Valve Available

    Excavator Relief Valve is available for popular makes and models of Excavators Hyundai, L&T-Komatsu, JCB, Kobelco, TATA Hitachi, Volvo, Sany, Caterpillar, XCMG, Kubota and all other Excavator are also ready in stock to offer the following attributes. Send Enquiry. Category Excavator Spares Tags Best Excavator Relief Valve, Best Pressure Relief

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  • Excavator Valving - Hyspecs

    Pressure reducer, 2 & 3 position solenoid valves, 5-port cross line relief valve HS9509P4FPS**D* Quickhitch & Tilt bucket (S/A or equal area ram/s) Pressure reducer, 2 & 3 position solenoid valves, 4-port cross line relief valve HS9510P4A**D* Low pressure Quickhitch 2 position solenoid valve with all ports on one face (Continued on next page)

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  • Home » Empire CAT » Your Source For Used CAT Equipment in

    Empire CAT is a full-service provider of heavy equipment solutions for clients in construction, mining, agriculture, and other demanding industries. We have an extensive inventory of used equipment for sale worldwide from leading manufacturers like Caterpillar, Kenworth, Toshiba, and more.

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  • TB260 | Huppenkothen Baumaschinen

    Automatic pressure relief of control circuits when quick change plate is actuated: Pressure accumulator for pressure relief of hydraulic circuits and emergency boom lowering: Hydraulic tank venting: Pilot controlled load holding valve on boom cylinder and arm cylinder: End position damping in boom and arm cylinder, TB2150 in swing cylinder too

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  • PC490LC-11 large hydraulic excavator | Komatsu

    Built for high production jobs, the PC490LC-11 is a large but portable excavator with a heavy-duty reinforced undercarriage for high lift capacity, lateral stability and added durability. Large high-strength steel castings on the boom, arm and bucket link. Closed …

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  • US20110061755A1 - Hydraulic circuit system for hydraulic

    A hydraulic circuit system for a hydraulic excavator, which has a hydraulic circuit for an attachment, includes: a directional control valve 16 that supplies a hydraulic fluid to an attachment connected to the hydraulic circuit for an attachment; a first over-load relief valve unit 38 that is provided in one of lines of the hydraulic circuit for an attachment; a second over-load relief valve

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  • 308C CR Excavator Hydraulic System – Relief Valve (Line

    To adjust the line relief valve pressure setting of the boom cylinder head end, move the joystick for the boom until the boom is at the full BOOM RAISE position (full extension of boom cylinders). Hold the joystick for the boom in this position. Check the pressure in the boom cylinder head end on the pressure gauge at pressure tap (2) .

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  • HYDRAULIC EXCAVATOR TB290-2 - Takeuchi Global

    Multi-Informational Display Hydraulic Joystick Controls Auxiliary Hydraulic Lines Optional 2-Piece Boom HYDRAULIC SYSTEM P1 Variable Displacement Pump Flow Rate 224.0 L/min Relief Pressure 27.5 MPa P2 Gear Pump Flow Rate 60.6 L/min Hydraulic Pressure 24.0 MPa Service Port 1 Flow Rate 100.0 L/min Hydraulic Pressure 20.6 MPa Service Port 2 Flow

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  • TECHNICIAN TOOL REIMBURSEMENT - Empire Cat

    AL-AL-0613 2/1/2020 Page 2 of 4 EMPIRE ¶V reimbursement is limited to tools that can used on the job. EMPIRE reserves the right to not reimburse tool purchases that …

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