CNC Milling Machined Parts
- High Geometric Accuracy: Outstanding symmetry, straightness, verticality, and flatness for accurate assembly.
- Functional Feature Machining: Able to produce key grooves, T-type grooves, dovetail grooves and other slot forms.
- Toothed Component Production: Processes slip-tooth parts such as gears, spline shafts and sprocket wheels.
- Spiral Surface Processing: Capable of threads and thread grooves, including special spiral profiles.
- Multi-Operation Efficiency: Milling, lead plugging and boring operations can be combined to reduce cycle time.
Technical Specifications
| Item | Specification |
| Product Name | CNC Milling Machined Parts |
| Main Processes | CNC milling, lead plugging, boring |
| Machined Surfaces | Flat surfaces (horizontal, vertical), steps, shoulders, profiles |
| Groove Types | Key groove, T-type groove, dovetail groove, custom slots |
| Toothed / Slip-Tooth Parts | Gear, spline shaft, sprocket wheel, chain wheel |
| Spiral Features | Threads and thread grooves |
| Typical Part Types | Gears, chain wheel, grooved plates/blocks, turbine components, custom profiles |
| Geometric Characteristics | Excellent verticality, flatness, straightness, symmetry and smooth finish |
| Regular Materials – Carbon Steel | Q235, Q345, 16Mn, 50Mn, 60Mn, A105, 20#, 25#, 30#, 35#, 45#, 55# |
| Regular Materials – Alloy Construction Steel | 20CrMnMo, 40CrMnMo, 20CrMnTi, 40CrNiMoA (4340), 30Cr2Ni2Mo, 34CrNi3Mo, 24Cr2Ni2Mo,40Cr, 25CrMo, 30CrMo (4130), 35CrMo, 42CrMo (4140), 38CrMoAl, etc. |
| Regular Materials – Stainless Steel | 2205, 410, 1Cr17Ni2, 1Cr13, 304, 304L, 316, 316L, etc. |
| Regular Materials – Alloy Tool Steel | H13 (4Cr5MoSiV1), Cr12MoV (D2), 5CrMnMo, etc. |
| Production Basis | Manufactured completely according to customer drawings and specifications |
Customization Options
- Custom dimensions for length, width, thickness, steps, and shoulders according to drawings.
- Special groove forms: keyways, T-slots, dovetail grooves, spiral grooves, and pockets.
- Toothed features: gear profiles, splines, sprocket teeth, and custom slip-tooth designs.
- Material selection from carbon steel, alloy construction steel, stainless steel, and alloy tool steel.
- Defined tolerances and surface roughness levels to meet functional and sealing requirements.
- Combined machining operations (milling + drilling/boring/tapping/chamfering) in one setup.
- Prototype, small-batch, and mass-production service with flexible lead times.
- Inspection reports, material certificates, and hardness/NDT testing on request.
- Anti-rust protection and export-grade packaging per customer or project specification.
Applications
- Aerospace structural parts, brackets and precision housings
- Military and defense components requiring high accuracy and reliability
- Shipbuilding parts such as brackets, bases, flanges and transmission components
- Petroleum/chemical industry pump bases, valve bodies, gear housings and supports
- Energy industry turbine parts, generator bases and cooling-system components
- Transportation components for automotive, rail and heavy equipment
- Pressure vessel and general machinery parts with flat faces, grooves and complex contours
Raw Materials
We produce and purchase raw materials strictly according to customer requirements, ensuring full compliance with project specifications, mechanical properties, and international standards.
Main steel grades we produce:
Steel Grade | Standards | Classification | Products |
1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4871 | EN 10222-5 | L | Forged flanges and Forged parts |
F304, F304L, F316, F316L, F321, F316T, F310, F904L | ASTM A182 | L | Forged flanges and Forged parts |
F51, F53, F55, F60 | ASTM A182 | L | Forged flanges and Forged parts |
LF2 | ASTM A350 | V | Forged flanges and Forged parts |
F11, F22 | ASTM A182 | V | Forged flanges and Forged parts |
A105 | ASTM A105 | N | Forged flanges and Forged parts |
CNC Machining Capabilities
We operate multiple machining lines and CNC centers engineered to deliver tight tolerances, superior surface finishes, and consistent quality for complex forged components.
Equipments and Quantities | ||
Item No. | Equipments | Quantities |
1 | Ramp CNC lathe | 6 |
2 | Normal lathe | 8 |
3 | Machining center | 4 |
4 | CNC lathe | 10 |
Inspection & Quality Control
To ensure the high quality of non-standard flanges, we are equipped with professional testing and inspection systems:
- 3D Measurement Equipment
- Ultrasonic Cleaning Machine
- Physical & Chemical Testing
- Dimensional Inspection
Packaging for Non-Standard Flanges
We provide protective packaging options according to customer needs:
- Anti-rust treatment
- Plastic film wrapping
- Wooden cases
- Wooden pallets
- Custom packaging available
Why Choose Boberry

Complete In-House Manufacturing
Integrated forging, heat treatment, machining, and inspection ensure stable quality, faster lead times, and full control over every production stage.

European-Market Proven Quality
Long-term supply to Germany, Austria, Switzerland, and Nordic countries demonstrates our ability to meet strict technical standards and customer expectations.

Custom Engineering Support
Tailor-made stainless-steel parts based on your drawings, with trial samples available to validate design, performance, and fit before full-scale production.
