Value-Added CNC Machining
Every casting and forging we produce is precision-machined in-house — no separate machining vendor needed. From critical bores and threads to multi-axis profiles, we deliver finished, ready-to-assemble components.
Integrated Machining
Precision
Surface Finish Achievable
Cast + Machine + Finish
No outsourcing — machined where it’s cast
Machining what we cast & forge
Multi-axis precision machining
Full QC & traceability
Every critical dimension inspected
CNC Machining
Renyi in-house CNC machining center — precision finishing on aluminum, iron, and steel castings
“Not a standalone job shop — our CNC machining is an integrated secondary operation that finishes the castings and forgings we produce. One engineer owns both processes per project.”
At Renyi Castings, CNC machining is tightly integrated with our casting and forging lines. Keeping machining in-house eliminates vendor coordination, reduces lead time by 5–10 days per order, and maintains full dimensional control from mold to finished component.
Each project is managed by a single engineer who understands both the casting process and machining requirements — resulting in smarter fixture design, fewer setups, and tighter tolerances on critical features.
CNC Turning
CNC Milling
Drilling & Tapping
Aluminum · Iron · Steel
Surface Grinding
Stainless · Brass · Bronze
±0.01mm Tolerance
By combining casting and machining under one roof, we deliver faster turnaround, tighter tolerances, and better cost control — with a single point of accountability.
Cast and machine under one roof. No inter-vendor shipping, no split accountability — one team responsible from raw casting to finished part.
Achieve ±0.01mm on machined features. Our machining engineers understand each casting’s unique characteristics and design fixtures that account for as-cast geometry.
Save 5–10 days of transit time between separate vendors. Parts move directly from the foundry floor to the CNC shop — often the same day.
The machining engineer understands the casting’s metallurgy, porosity tendencies, and surface conditions — enabling smarter tool paths and fewer rejects.
Every casting and forging passes through a controlled, in-house chain — from raw metal to ready-to-assemble component. No middlemen, no surprises.
Die cast, gravity cast, sand cast, investment cast, or forged — the blank is produced in our own foundries
Turning, milling, drilling, tapping, and grinding to achieve final dimensions and tight tolerances
Impregnation, powder coating, anodizing, chrome plating, mirror polishing, or painting applied per customer specification
CMM measurement, visual inspection, and full dimensional report before packing and shipment
Precision-machined castings and forgings manufactured for global OEM and tier-1 clients. Click to view full project details.
Aluminum Die Casting — CNC Machined Mounting Holes + Precision Lathe Turned Flange
Brass Die Casting — CNC Drilled Holes + Precision Lathe Turned Internal Bore
| Equipment | Specification | Capability | Applications |
|---|---|---|---|
| CNC Turning Centers | Max ⌀600mm × 1000mm | Shafts, bores, OD/ID profiles | Rotational parts, sleeves, hubs |
| CNC Vertical Machining Centers | Travel 800×500×500mm | Milling, contouring, pocketing | Housings, brackets, covers |
| Drilling & Tapping | Multi-spindle, M3–M20 | Hole patterns, threaded features | Flanges, manifolds, plates |
| Surface Grinding | Flatness ≤0.005mm | Datum faces, sealing surfaces | Mating surfaces, valve seats |
Aluminum Alloys
Gray & Ductile Iron
Carbon Steel
Stainless Steel
Brass
Bronze
BronzeCopper
Alloy Steel
All Casting Alloys
Our CNC machining shop is equipped to handle a broad range of post-casting and post-forging precision operations:
Machined Tolerance
Max Milling Travel (X)
Surface Finish (μm)
Max Turning Dia.
Part Weight Range
Machined Tolerance
Inspection Equipment
Critical Dim. Verified
From DFM review to final inspection — every stage is managed in-house to ensure precision and traceability.
01
Engineering team reviews casting drawings and machining requirements to optimize for manufacturability and fixture design
02
Custom fixtures designed to securely hold as-cast geometry, minimizing setups and ensuring repeatable positioning
03
CAM programming with optimized tool paths for each casting alloy — balancing cycle time, tool life, and surface quality
04
Turning, milling, drilling, tapping, and grinding operations performed on CNC centers to achieve final dimensions
05
Coordinate Measuring Machine verification of all critical dimensions with full dimensional report for each batch
06
Impregnation, powder coating, anodizing, chrome plating, mirror polishing, or painting applied per spec — delivering a finished, ready-to-assemble part
From raw castings to fully machined and finished components — we handle the entire chain so you deal with one supplier.
Raw casting or forging to fully machined finished part
CNC turning (shafts, bores, OD/ID profiles, threads)
CNC milling (pockets, slots, contours, mounting faces)
Drilling and tapping (hole patterns, threaded features M3–M20)
Surface grinding (datum faces, sealing surfaces)
Surface treatment after machining (impregnation, coating, plating, anodizing)
Full dimensional inspection report with every shipment
Sub-assembly and kitting services
Consistent quality backed by ISO 9001 QMS
Single point of contact for casting + machining projects
Our engineers review your part design to optimize casting geometry for efficient machining — reducing setups, cycle time, and cost.
Dedicated fixtures designed for each part geometry, ensuring repeatable positioning and consistent machining quality across production runs.
Full CMM dimensional reports provided with every production batch. First article inspection (FAI) available per customer request.
We assemble inserts, bushings, O-rings and sub-components — shipping ready-to-install units to your production line.
CNC machined castings and forgings from Renyi are used in performance-critical applications across the globe.
– Engine brackets & mounts
– Transmission housings
– Machined valve bodies
– Turbocharger housings
– Brake system components
– Pneumatic valve bodies
– Pump covers & housings
– Gearbox casings
– Hydraulic manifolds
– Motor end caps
– Marine hardware fittings
– Propeller hubs
– Valve & pipe flanges
– Wind turbine components
– Generator housings
– EMI/RFI shielding housings
– Heat sink assemblies
– Connector bodies
– 5G base station parts
– Power supply enclosures
Yes, we can accept externally sourced castings and forgings for CNC machining. However, our primary focus and best value proposition is machining the castings and forgings we produce ourselves — this ensures seamless quality control and the fastest turnaround.
We routinely hold ±0.01mm on machined dimensions. For non-critical features, standard machining tolerances of ±0.05mm apply. All critical dimensions are verified on our CMM before shipment.
We work from your drawings. Send us your 2D/3D files (STEP, DXF, PDF) with machining requirements clearly indicated — tolerances, surface finish callouts, thread specs, and datum references. Our engineering team will review for manufacturability.
As-machined surface finish ranges from Ra 0.8 to Ra 3.2 μm depending on the operation. After machining, we offer impregnation treatment, powder coating, anodizing, chrome plating, mirror polishing, painting, and passivation to meet your final surface requirements.
By eliminating the need for a separate machining vendor, you save on logistics (no inter-vendor shipping), reduce lead time by 5–10 days, and avoid coordination overhead. One purchase order, one quality system, one point of contact.
Send your drawings (2D/3D), material grade, machining tolerances, surface finish requirements, and target quantity. Our engineering team will review manufacturability and return a full quotation within 12–48 hours.
DFM review — machining optimization included
Casting + machining cost itemized separately
Surface treatment options quoted
CMM inspection report included with every order
Send drawings (STEP / DXF / PDF) to us — response within 12 hours.