A7H180-FR09-11A4K-10 Yuken piston pump
YUKEN piston pump series: A series, AR series, ARL1 series, A3H series, A3HG series, A7H series.
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Parameter Specification for YUKEN Variable Displacement Piston Pump A7H180-FR09-11A4K-10
1. Model Explanation
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A7H: Series identifier, high-pressure variable displacement piston pump (extended series of A3H, designed for large-flow, high-pressure applications)
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180: Geometric displacement, 180 cm³/rev (precision value)
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FR: Mounting and connection type, flange-mounted with standard connection specifications
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09: Control type, external control compound regulation type (pressure and flow dual regulation)
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11A4K: Shaft end and seal combination type, keyed shaft with special seal (adapt to wider working conditions)
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10: Standard configuration code (petroleum-based hydraulic oil, no additional special configurations)
2. Key Technical Specifications
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Item
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Specification
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Geometric Displacement
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180 cm³/rev
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Rated Pressure
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350 kgf/cm² (35.0 MPa)
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Maximum Operating Pressure
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400 kgf/cm² (40.0 MPa) (intermittent operation, 1 minute)
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Shaft Speed Range
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1800 – 1900 r/min (when suction pressure is -0.01 MPa ~ 0.5 MPa)
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Suction Pressure (Gauge Pressure)
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-0.01 ~ 0.5 kgf/cm²
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Hydraulic Fluid
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Standard: Petroleum-based oils (equivalent to ISO VG 32 or 46); Optional: Flame-retardant oils (water-glycol hydraulic fluid, fatty acid ester fluid) under specific conditions
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Viscosity Range
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10 – 200 mm²/sec (200 ~ 1000 mm²/sec allowed for short-term operation after trial run)
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Operating Oil Temperature
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20 – 80°C (10 – 50°C for water-glycol hydraulic fluid; 10 – 70°C for fatty acid ester fluid)
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Seal Material
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NBR (Nitrile Butadiene Rubber) with special seal structure (matches 11A4K configuration, suitable for petroleum-based oils and wider working temperature range)
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Weight
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150 – 224 kg (varies by control type and mounting method)
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Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
