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Leading pump manufacturer since 2009, specializing in industrial pumping solutions.

Ailored for Scale, Engineered to Last - Your OEM/ODM Pump Specialist

We are your dedicated manufacturing partner for large-scale, custom-engineered pumping solutions. Our comprehensive OEM (Original Equipment Manufacturing) and ODM (Original Design Manufacturing) services empower you to bring your precise vision to life. Whether you need to integrate specific materials for harsh environments, achieve unique performance benchmarks, or match existing system architecture, we handle the entire process from conceptual design to precision fabrication. 

For projects demanding reliability, scalability, and a perfect technical fit, our custom manufacturing capability transforms your requirements into robust, high-performance industrial assets.

Beyond the Pump: Data-Driven Efficiency for Your Unique Site

The true cost of a pump is measured in its operation. That's why our service begins with expert technical consultation. Our engineering team conducts a thorough analysis of your specific site conditions, fluid properties, system curves, and operational parameters. We move beyond standard catalog selections to recommend the optimally configured pump that aligns precisely with your real-world application. 

This proactive, consultative approach minimizes energy waste, reduces wear and tear, and maximizes overall system efficiency and lifespan. We don't just supply equipment; we deliver verified performance and long-term operational savings.

Our End-to-End Custom Pump Solution Process
We transform your specific requirements into reliable, high-performance pumping assets through a rigorous, collaborative, and transparent five-stage process.
Stage 1: In-Depth Needs Discovery & Specification
We begin by building a complete understanding of your unique challenge.
Client Consultation: We engage in detailed discussions to capture all operational conditions (media, pressure, flow, installation environment), industry standards (explosion-proof, corrosion resistance), and custom requirements (dimensional fit, system integration).
On-Site Survey (When Required): Our technical team can conduct a field visit to verify parameters, inspect interfacing equipment, and gather critical on-site data.
Formal Requirement Definition: We consolidate all findings into a (Custom Pump Technical Specification Document), clearly defining performance metrics, material specifications, and delivery timelines for mutual alignment.
Stage 2: Collaborative Design & Engineering Review
Precision planning ensures the solution matches your expectations.
Technical Solution Design: Our engineering team develops a tailored design covering pump hydraulics, mechanical structure, and auxiliary systems, supported by 3D models and simulation data for performance validation.
Transparent Costing & Scheduling: A detailed quotation and a realistic project timeline are provided concurrently with the design.
Joint Review & Approval: We present the solution for your review, confirming feasibility, cost, and schedule before finalizing the custom project contract.
Stage 3: Precision Manufacturing & Quality Assurance
Your pump is built with excellence and verified at every step.
Dedicated Material Procurement: We source approved materials (e.g., special alloys, engineered plastics) and certified core components specified in the design.
Controlled Manufacturing & Testing: Components undergo precision CNC machining, assembly, and rigorous industrial-grade testing (pressure, seal, performance) with full data traceability.
Final Quality Certification: Each pump undergoes comprehensive performance testing against standards (e.g., ISO, API), culminating in a formal  prior to release.
Stage 4: Seamless Delivery, Installation & Commissioning
We ensure a smooth transition to operational readiness at your site.
Secure Packaging & Logistics: The pump is prepared with custom protective packaging and managed to your site via reliable transport.
Expert Installation Support: Our technicians assist or supervise the on-site installation and integration with your existing systems.
Performance Commissioning & Training: We conduct start-up, calibrate to agreed parameters, and provide hands-on operational and maintenance training for your personnel.
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Water Pump Production Process Route

Mold Manufacturing → Precision Casting → Rough Machining → Product Assembly → Performance Testing

This stage involves pattern making-fabricating precision molds for critical parts like pump bodies and impellers-to prepare for the casting process.
Based on the hydraulic model and structural drawings of the water pump, 3D digital design of the mold is carried out using CAD software (e.g., SolidWorks, UG). CAM software is then used to generate machining path code for CNC machine tools.
Premium mold steel (e.g., P20, H13) is chosen as the base material. It then undergoes rough machining operations, leaving a precise material allowance for subsequent finishing.
High-precision milling and turning of core components such as mold cavities, runners, and sliders are performed using 5-axis CNC machine tools to ensure surface finish and dimensional accuracy.
The mold undergoes heat treatment processes such as quenching and tempering, and nitriding to enhance its hardness, wear resistance, and service life. The cavity receives polishing and electroplating treatments to achieve a mirror finish and ensure the surface quality of castings.
The processed components are assembled into a complete mold and installed on the casting machine. Trial casting is then conducted to inspect the dimensions and appearance of the blank castings, with fine adjustments made to the mold until all specifications are met.
This stage produces near-net-shape cast blanks for complex components like pump bodies and impellers, achieving both intricate geometry and fine surface quality.
In the investment casting process, liquid wax is injected into a die to create a precise positive replica of the part, known as a wax pattern
Multiple wax patterns are welded onto a shared wax gating system, forming an assembly known as a "wax tree" or "cluster".
The "wax tree" undergoes repeated cycles of coating with a ceramic slurry (silica sol + zircon sand), followed by the application of coarse refractory grains (stuccoing) and drying, to form a multi-layered, rigid ceramic mold.
In the lost-wax process, the shell-coated cluster is dewaxed using high-pressure steam or hot water to melt out the wax, creating a hollow cavity for metal casting.
Stainless steel charge is melted in a furnace and its chemical composition is adjusted. The molten metal is then poured into the ceramic shell, which has been pre-fired at high temperature.
After cooling, the shell is shaken off and removed, and individual castings are cut off from the tree. The gating system is then removed. Sandblasting or shot blasting is performed to clean surface residues from the castings.
The cast blanks are machined to achieve precise assembly dimensions and geometric tolerances.
Initial machining is performed on reference surfaces, spigots, and flange end faces of the blank using equipment such as gantry milling machines and vertical lathes to remove the majority of the stock allowance.
Stress relief annealing is performed as required (e.g., to eliminate internal stresses).
CNC Machining Center: Precisely mills mounting surfaces and drills/taps connecting bolt holes.
CNC Lathe: Finely turns critical rotating components such as bearing seats and shaft seal areas to ensure concentricity and surface finish.
Deep Hole Drilling: Processes balancing holes or cooling water channels.
Benchwork: Deburrs and chamfers components in preparation for assembly.
Qualified components and standard parts (e.g., bearings, mechanical seals, bolts) are assembled into a complete water pump according to the process specifications.
Rotor Assembly: The pump shaft, impeller, shaft sleeve, and balancing drum are press-fitted together. The assembly then undergoes dynamic balancing testing and correction to ensure smooth high-speed operation.
Mechanical Seal Installation: The stationary ring and rotating ring components are press-fitted into the pump cover and pump shaft, respectively.
Mount the pump casing onto the assembly fixture.
Install the rotor assembly and fit the pump cover, ensuring the impeller-to-casing clearance meets design specifications.
Mount the bearing housing and bearings, then inject lubricating grease.
Install drive components such as the coupling or pulley.
Tighten all connection bolts according to the specified torque and sequence.
The finished pump undergoes testing to verify that its performance and quality meet both design standards and customer requirements.
Inspection of coating, nameplates, and overall appearance is carried out to identify any damage.
Jog the motor to verify the correct rotation direction and check for any binding or abnormal friction noise.
Pressure Integrity Test: The pump casing is pressurized to check for leaks.
Hydraulic Performance Test: Conducted on a closed or open test loop, this test measures the pump's flow, head, power, and efficiency across various operating points to generate its performance curve.
NPSH Test: Determines the pump's cavitation resistance characteristics.
All test data is reviewed and verified. A certificate of conformity is issued upon passing.
The pump undergoes anti-corrosion and waterproof packaging before being placed into a sturdy wooden or steel crate for shipment.
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Machinery and equipment
Our diverse product portfolio encompasses clear water pumps, oil pumps , and impurity pumps. Committed to innovation and quality, we provide reliable pumping solutions for various industrial applications, serving as a key partner for both domestic and international markets.
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Your Success Through Unwavering service Support
When you need us, we have a highly capable and confident team ready to provide you with comprehensive support. We can offer you efficient and forward-thinking solutions.
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Guangzhou Xinheng Pump Manufacturing Co., Ltd., established in 2009, specializing in energy-efficient and large-scale pump systems.
Contact Us
Add: No.5, Yunkai Road, Giuangzhou Economic & Technologtal Development Zone, Guangdong, China 
Contact person: jiang xinhang 
WhatsApp: +86 19898241968
Tel:020-36158168/020-36158166
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