Custom Large Part Machining Manufacturer in China
- Professionally trained operators
- Equipped with a variety of large-scale machining equipment
- Metal and plastic materials
- Accuracy and repeatability
- High production efficiency
- ISO9001 certification
Why Choose DSR?
DSR has 14 years of precision machining experience, and our factory is fully capable of undertaking your large part projects. From drawing review, material preparation, CNC machining, surface treatment to quality inspection, we provide you with complete large component machining support.
DSR’s production and quality inspection team is familiar with the machining difficulties of various large components. Relying on professional CNC equipment and stable clamping solutions, we can effectively help our customers control component dimensions and improve assembly reliability.
Your One-Stop Large Part CNC Machining Solution
Large machining parts are typically too heavy to be handled manually and difficult to accommodate on standard CNC machines. Usually, machining these parts requires specialized equipment and extensive knowledge. As a large CNC parts processing supplier in China, DSR supports the machining of a wide variety of large parts, including turbine parts, fixture plates, and heavy equipment components.
No matter what kind of customized CNC machining services you need, with our state-of-the-art gantry/compound machining centers, we can provide you with a wide range of components meeting precise tolerances. In addition, we are equipped with professional testing equipment (spectrometer, etc.) to test your customized large parts after all machining steps are completed to ensure that every detail meets design requirements.
Our expert engineers are ready to serve you. Contact us today to order large CNC machined services for your equipment or project.
DSR's Large-Scale Machining Equipment
DSR has comprehensive machining capabilities and can manufacture large diameter or extra-long parts according to your drawings. We are equipped with advanced machine tool equipment, so we can provide customized solutions based on your needs.
Large-scale milling machine. This machine is well-suited for high-precision machining of extra-large plates, molds, and structural components.
Used for machining heavy-duty, deep-cavity parts. This machine tool features high spindle torque and a wide machining range.
This machine tool supports multi-surface machining of large prismatic parts, with a rotating worktable and excellent chip removal functionality.
It can be used to machine extra-long or extra-heavy parts. This machine features a moving column structure.
It is capable of machining large flat parts and features vertical spindle feed and a long stroke.
This lathe can be used to turn large-diameter cylindrical parts, such as shafts and tubes.
Large CNC Machining Parts We Have Manufactured
So, what large parts have we actually manufactured? And during machining, we also devise special strategies for different large parts to prevent them from shifting or bending.
We use rough machining to release stress, and use semi-finishing to correct the component’s reference surfaces, and finally finish-mill the mounting surfaces and hole locations on the base plate.
We will plan the drilling sequence and control the dimensions of critical ports. In addition, we will remove burrs from through-holes and inspect threads and sealing surfaces.
We can machine the end face, bore, outer diameter, and sealing surface in a single setup, helping our customers obtain flange parts with reliable seals and stable connections.
We prioritize machining the reference surface, then complete the positioning holes, slots, and countersink holes to ensure that the fixture plate maintains stable positioning performance over the long term.
We will use a segmented machining process and strictly control clamping and support to ensure cutting stability. We will precisely turn the outer diameter, end faces, and steps to complete the shaping of the main contour.
We adopt a stable clamping scheme, precisely machining various features of the large ring by controlling the cutting allowance. This ensures that the ring components have good assembly accuracy and geometric stability.
We will focus on controlling bearing hole dimensions, coaxiality, mounting surface and other component characteristics to help our customers ensure smooth bearing installation and stable equipment operation.
We will precision-machine the internal bores, threaded connections, flange faces, and other features of pipe fittings, and select appropriate surface treatment solutions based on your application requirements.
Post-Processing Services DSR Deliver
For large parts, single processing may not be enough. If the strength and durability of the parts need to be improved, secondary processing is usually required. In addition to meeting the requirements for tolerances and surface accuracy, it can also ensure the accuracy of assembly with the equipment.
Modular AssemblyIf you need to manufacture valves, pump, or gear reducer assemblies, DSR can provide you with modular design services to ensure their smooth pre-assembly.
Structural WeldingAfter completing steel beams, frames, and support parts, we will weld them according to your requirements. Some parts can be precision-welded to ensure high accuracy.
AnnealingThis is typically performed on plastic or metal parts to effectively eliminate internal stress, preventing large components from encountering difficulties or deformation during installation.
Surface TreatmentOur surface treatment services typically include anodizing, electroplating, sandblasting, and polishing to ensure that large parts achieve higher precision, durability, and surface quality.
Advantages of Our Large Parts Machining Service
DSR provides one-stop services for large machined parts. When dealing with large, heavy parts, we help our customers achieve more reliable and easier-to-assemble finished parts through optimal machining solutions.
DSR is equipped with multiple advanced CNC machines capable of machining large parts, enabling us to manufacture a wide variety of custom large components for you.
We will design reasonable support and positioning methods based on your part structure to reduce vibration and misalignment during the machining process.
We will minimize the risks associated with stress release and cutting deformation by applying safety margins and using a step-by-step machining process.
Our small-batch production of large parts does not require tooling costs, making it more cost-effective than casting.
We will focus on inspecting the critical dimensions of parts during machining, such as flatness, hole positions, concentricity, etc., to ensure that the parts can meet subsequent assembly and usage requirements.
Our large-scale CNC machining allows us to complete large components in a single operation, thereby shortening production cycles. It eliminates the need for additional handling and processing steps.
Inspection and Quality Control for Large CNC Machined Parts
The challenges of machining large parts lie not only in their size but also in their post-machining stability and assembly accuracy.
During the manufacturing process, our factory strictly controls production quality. We focus on controlling part characteristics such as flatness, hole positioning, coaxiality, and perpendicularity, thereby reducing rework and minimizing risks during on-site assembly.
Before shipment, we also use professional instruments such as height gauge and micrometer to inspect critical dimensions and surface treatments of parts. If customers require, we can also provide inspection reports.
Industries Using Our Large-Part Machining
DSR can provide large parts CNC machining services for different industries. Whether it’s a single prototype, small-batch production, or high-volume manufacturing, DSR can develop excellent machining solutions based on your drawings and specifications.
Large Part CNC Machining Capacity at a Glance
DSR provides customized machining solutions for large parts to each customer. Our engineers will review your drawings and select the appropriate machining method based on your needs.
- Our Machining Specifications
| Capability Item | Machining Specification |
| Maximum Round Part Specification | Up to 350mm x 14000mm |
| Maximum Square Parts Specification | Up to 2000mm x 4000mm |
| General Machining Tolerance | Up to ±0.05 mm |
| Precision Finishing Tolerance | Project-based, tighter tolerance available after review |
| Materials | Aluminum, stainless steel, carbon steel, alloy steel, brass, copper, cast iron, engineering plastics |
| Main Machining Processes | CNC milling, CNC turning, drilling, tapping, boring, slotting, surface milling |
| Surface Treatment | Anodizing, plating, polishing, sandblasting, black oxide, anti-rust treatment |
| Inspection Support | Dimension inspection, thread check, flatness check, bore inspection, surface roughness check |
| File Support | STEP, STP, IGES, DWG, DXF, PDF drawings |
TESTIMONIALS
“We ordered a large filling machine frame and conveyor belt from DSR. The quality far exceeded our expectations, and they were very well packaged. Now our filling machine is up and running again.”
Like large-scale machining parts, there is no standard size for super-large CNC machining parts. Usually, they cannot be accommodated normally, and five-axis machining has limitations. Parts with a height of more than 5 meters can be called super-large parts.
The manufacturing process for extra-large and large parts is the same, but the manufacturing difficulty is higher. If you need a CNC manufacturing solution for extra-large parts, please contact us now.
First of all, our manufacturing equipment can achieve an accuracy of ±0.05 mm. Combined with our post-processing, such as polishing, we can achieve an accuracy of ±0.01 mm for large parts, but this will take longer.
DSR can be used to manufacture stainless steel, copper, aluminum, alloys, plastics, and other materials. Generally speaking, stainless steel and aluminum are used most frequently, followed by brass, titanium, plastics, etc.
The cost range for CNC machining a part varies greatly. This final price is mainly determined by four factors: material cost, geometric complexity of the part, tolerance precision requirements, and order quantity.
Yes.
Large-format machining refers to a CNC machining process specifically designed for parts that are exceptionally large, exceptionally long, or extremely heavy.
Yes, we can.
Large CNC machines (large-scale CNC machine tools) refer to industrial-grade, heavy-duty automated machining equipment specifically designed for machining oversized, heavy, or extra-long workpieces.These machine tools feature extensive machining travel, extremely high load-bearing capacity, and exceptional structural rigidity.
