What Is Gear Pump Casting?
Gear pumps move fluids through rotating intermeshing gears inside a precision housing. Gear pump casting involves manufacturing metallic bodies, covers, and housings with accurate dimensional relationships required to support rotating gear shafts and fluid sealing faces.
Investment casting produces base components close to net shape, incorporating mounting features, bosses, and connection ports directly into the raw casting. Rainbow Technocast develops gear pump castings from customer drawings to optimize material usage and streamline final machining.
Our Gear Pump Casting Range / Types
- External Gear Pump Castings
- Internal Gear Pump Castings
- Rotary Gear Pump Castings
- Industrial Gear Pump Castings
- Gear Pump Body Castings
- Gear Pump Housing Castings
- Gear Pump Cover Castings
- Gear Pump End-Cover Castings
- Gear Pump Mounting Castings
- Gear Pump Adapter Castings
Industries We Serve with Gear Pump Castings











Why Investment Casting for Gear Pump Components?
Gear pump housings combine intricate external geometry with precision internal cavities. Investment casting forms these shapes close to final requirements, eliminating excessive machining stock and allowing mounting features and connection ports to be integrated directly into the component.
This near-net-shape approach improves material utilization when working with specialized or corrosion-resistant alloys. Precision machining then focuses strictly on critical bearing bores, shaft locations, and sealing interfaces to achieve final dimensional tolerances.
Our Gear Pump Casting
Manufacturing Process
- Engineering & Technical Review
- Tooling Design & Die Manufacturing
- Wax Pattern Production & Assembly
- Ceramic Shell Building & Drying
- Dewaxing & Shell Firing
- Induction Melting & Composition Analysis
- Metal Pouring & Solidification
- Shell Removal & Cut-Off
- Fettling & Grinding
- Heat Treatment & Surface Cleaning
- Precision Machining
- Dimensional, NDT & Material Testing
Why Choose Rainbow Technocast as Your Gear Pump Casting Manufacturer?
Single-System
Integration
Combines casting and machining to ensure precise alignment of critical bearing bores.
Complete In-House Infrastructure
Handles die design, pattern production, melting, heat treatment, and CNC finishing.
Strict Material
Testing
Spectrometry, hardness, and NDT facilities verify exact alloy specifications before delivery.
High Dimensional
Accuracy
Provides gear pump OEMs with highly repeatable components matching exact technical drawings.
Frequently Asked Questions
Does Rainbow Technocast manufacture complete gear pumps?
The company’s core capability is manufacturing investment cast and machined components. The precise supply scope is established from the customer’s component requirement.
Which gear-pump parts are suitable for investment casting?
Bodies, housings, covers, adapters and other geometrically detailed components may be suitable. The final decision depends on size, geometry, material and volume.
Can bearing and shaft locations be machined after casting?
Yes. Critical bores, datums, interfaces and sealing areas can be precision machined according to the supplied finished-component drawing.
Which materials can be used?
Material selection depends on fluid compatibility and mechanical requirements. Rainbow Technocast manufactures a range of steel, stainless-steel, duplex, nickel and selected copper-alloy grades.
What should we provide for a quotation?
Provide the component drawing, material grade, annual or batch volume, finished dimensions where applicable, machining scope and testing or inspection specification.
Request a Quote for Gear Pump Castings
Share your gear-pump component drawing and technical requirements with Rainbow Technocast.
Our team can assess casting feasibility, material requirements, machining scope and inspection needs before quotation.