NSH50 Series Gear Pump
Wechat: +86 13728707767
Whats app: +86 13728707767
E-mail: hyd-sales2009@outlook.com
Product Overview
Model Specifications & Nomenclature
Model Nomenclature (Per OST 23.1.92-88)
-
NSH: Basic code for gear pump.
-
50: Displacement per revolution, 50 cm³/rev.
-
M/A: Design version (M for standard type, A for “Antey” upgraded type).
-
3/4: Nominal pressure rating (3 for 16 MPa/160 bar, 4 for 20 MPa/200 bar).
-
Additional Symbols: L (left rotation, counterclockwise from the drive end; right rotation is not marked); Climatic version (U/T/HL per GOST 15150-69 for export, omitted for domestic use).
Main Executions
-
NSH50M Series: Designed for hydraulic systems with maximum continuous pressure of 160 bar. The pump body is made of special aluminum alloy, offering a lightweight and cost-effective solution. Maximum intermittent pressure reaches 210 bar, and peak pressure is 250 bar, with a maximum speed of 3000 min⁻¹.
-
NSH50A Series (“Antey” Series): Available in two pressure grades – 160 bar and 200 bar. For the 200 bar version, the housing is made of high-strength cast iron, enhancing reliability and durability. It can withstand maximum intermittent pressure of 250 bar and peak pressure of 280 bar, with a maximum speed of 3000 min⁻¹ (2400 min⁻¹ for 200 bar grade).
Technical Parameters
|
Parameter
|
NSH50M
|
NSH50A (160 bar)
|
NSH50A (200 bar)
|
|---|---|---|---|
|
Displacement
|
50 cm³/rev
|
50 cm³/rev
|
50 cm³/rev
|
|
Maximum Continuous Pressure (p₁)
|
160 bar
|
160 bar
|
200 bar
|
|
Maximum Intermittent Pressure (p₂)
|
210 bar
|
210 bar
|
250 bar
|
|
Maximum Peak Pressure (p₃)
|
250 bar
|
250 bar
|
280 bar
|
|
Maximum Speed (nₘₐₓ)
|
3000 min⁻¹
|
3000 min⁻¹
|
2400 min⁻¹
|
|
Minimum Speed (nₘᵢₙ)
|
500 min⁻¹
|
500 min⁻¹
|
500 min⁻¹
|
|
Housing Material
|
Special Aluminum Alloy
|
Aluminum Alloy/Cast Iron
|
High-Strength Cast Iron
|
NSH50 Series Gear Pump
Structural Features & Advantages
-
Efficient & Stable Performance: Adopts advanced design, precision-machined components, and high-precision manufacturing equipment, ensuring consistent efficiency throughout the service life. The integrated gear and housing design minimizes hydraulic load on components.
-
Low Maintenance Requirement: Simplified structure with mechanical seals made of multi-layer materials, eliminating the need for barrier fluid supply. Sleeve bearings are mounted in a robust assembly unit to improve operating conditions and durability.
-
Compact & Versatile Installation: Small volume allows installation in confined spaces. Available in both left and right rotation directions, compatible with splined shaft connections for power transmission.
-
High Reliability: The “MЧ” and 200 bar A-series adopt cast iron housings to resist high pressure and shock, suitable for harsh working environments. Complies with GSTU and GOST standards, ensuring interchangeability with original parts.
Application Scope
-
Construction & engineering machinery: Excavators, loaders, road construction machinery, and municipal engineering equipment.
-
Mining machinery: Hydraulic systems for mining equipment and bulk material handling machinery.
-
Other fields: Industrial hydraulic systems, special-purpose vehicles, and mechanical equipment requiring stable oil delivery under pressure.
Quality & Warranty
gear pump
Process steps：
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.
