Renyi Castings
RFQ@renyicastings.com
Fast Response Email Support
Mon - Fri: 9:00-17:30
GMT+8
Ningbo city
China 315137
Fast Response Email Support
GMT+8
China 315137
ISO 9001 CERTIFIED CASTING MANUFACTURER SINCE 2005
From high-volume die casting to precision investment casting — we match the right process to your product requirements.
High-pressure cold-chamber die casting in ADC12, A380 and AlSi10Mg alloys. Machines from 160T to 800T for complex, thin-walled parts at high volume. Tolerance ±0.05 mm.
Permanent mould casting for aluminum and zinc alloys. Hand mould and machine mould options, max 30 kg, with in-house tooling at ~30% the cost of die casting tooling.
Green sand, resin sand and shell mold processes for cast iron, aluminum, brass and steel. Auto and manual lines, parts up to 10 tons. T1 samples in 20 days.
Stainless steel, alloy steel, carbon steel, brass and bronze. Robotic shell coating for consistent quality. Tolerance ±0.18 mm standard, ±0.08 mm premium.
Silicon sol process with CNC wax injection and robotic shell coating. Surface finish Ra 1.6–3.2 µm as-cast — the smoothest in our process lineup.
Open-die forging with 350T–1,250T hammers in steel, copper and brass. Zero porosity, up to 20% higher tensile strength than castings. Parts 0.5–200 kg.
Five clear steps from RFQ to delivery — with full transparency and quality ownership at every stage.
Send your drawings (2D/3D), material specs, and target quantity to RFQ@renyicastings.com
Our engineers review design for manufacturability and suggest process optimizations
We produce tooling and first-article samples for your approval before mass production
Full-scale production with in-process QC inspections at every critical stage
On-time delivery with full dimensional reports, material certs, and after-sales support
Renyi Castings delivers a complete supply chain — from mold design and casting to CNC machining, surface treatment and final assembly. No need to coordinate multiple vendors; we handle everything in-house.
With six production processes, joint-venture foundries for die casting and sand casting, and a dedicated quality lab, we serve OEM and ODM clients across automotive, aerospace, marine and industrial sectors worldwide.
Every casting leaves our facility with full traceability — from incoming material verification to outgoing dimensional sign-off. Quality is built into the process, not inspected in after the fact.
Our quality management system is independently audited and certified to ISO 9001, ensuring consistent processes from order entry through final shipment.
Verified & CurrentEvery heat charge is verified by OES spectrometer analysis before pouring. Mill certificates are cross-checked against customer specifications.
CNC coordinate measuring machines check 3D geometry and GD&T callouts. Vision Measuring System handles micro-features and 2D profiles.
X-ray inspection detects internal porosity, shrinkage and inclusions. Applied to 100% of structurally critical castings on request.
Material test report, dimensional inspection record, and NDT results provided as standard with every delivery. No extra charge.
Trusted by manufacturers across ten major industries worldwide.
Send us your drawings and requirements — our engineering team will respond within 12 hours with a detailed quotation and DFM feedback.
