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High-precision robotic cells and multi-axis automated grinding units configured for construction machinery hydraulic manifolds, structural pins, and drivetrain parts.
Why modern construction equipment manufacturers are shifting from labor-intensive deburring to closed-loop robotic automated polishing lines.
Construction machinery—including hydraulic excavators, wheel loaders, heavy crawlers, and mega-ton mobile cranes—operates under grueling environmental and mechanical conditions. Vital assemblies such as planetary gear reducers, hydraulic cylinder piston rods, slew ring bearings, transmission clutch housings, and drive axle pinions are constantly subjected to peak torsional loads, abrasive particle ingress, and multi-axial cyclical fatigue. In these critical components, micro-burrs, parting-line flashes from casting, weld seams, or micro-cracks from forging represent catastrophic stress-concentration risers.
A single subsurface micro-defect or irregular surface roughness profile ($Ra > 0.4\,\mu\text{m}$) on an excavator hydraulic pump control spool or rod can cause accelerated hydraulic oil contamination, high-pressure seal blowout, and unexpected field downtime. Therefore, the grinding and polishing of power components is no longer merely a cosmetic finishing step; it has evolved into a key manufacturing discipline directly determining fatigue life, tribological behavior, and high-pressure fluid retention.
Manual Inconsistency: Manual angle grinding and hand polishing rely entirely on operator experience, leading to unacceptable geometric variations, edge over-rounding, and uneven material removal rates across shifts.
Severe EHS Compliance Risks: Grinding alloyed cast steels, ductile iron, and heat-treated alloy steels generates hazardous airborne particulate matter and excessive vibration-related occupational hazards.
Robotic Line Transformation: Automated robotic grinding lines integrate 6-axis articulated arms, multi-station indexing turntables, active constant-force control units, and continuous dust extraction to deliver repeatable $C_{pk} \ge 1.67$ surface quality at high cycle speeds.
High-frequency force-torque sensor feedback loops dynamically maintain contact pressure within ±1N, preventing surface burning and wall thinning on complex geometry components.
Integrated blue-light laser scanners capture cast parting lines and weld contours in milliseconds, generating real-time robot toolpath compensations to adapt to casting variations.
Seamless workflow from coarse abrasive belt casting gate cutoff ($P60$) down to non-woven scotch-brite fine blending and diamond paste buffing ($Ra
Targeted automation protocols engineered to overcome severe metallurgy, complex contours, and strict dimensional tolerances.
Excavator boom, arm, and bucket cylinders operate under constant pressures exceeding 35 MPa. Piston rods manufactured from 40Cr or 42CrMo steel require strict surface roundness and mirror-like finishes ($Ra \le 0.1\,\mu\text{m}$) prior to hard chrome plating or HVOF thermal spraying. Our automatic centerless polishing lines utilize progressive multi-head abrasive planetary belts and micro-finishing buffing stations that eliminate spiral feed marks, creating a flawless cross-hatch micro-texture that sustains lubrication film while preserving high-pressure polyurethane seals.
Planetary carriers, differential spiders, and input pinion shafts endure brutal torque shocks. During the machining phase, gear root fillets and lubrication oil cross-holes produce burrs that easily cause gear mesh pitting. Multi-axis CNC robotic deburring cells equipped with flexible rotary diamond deburring tools and nylon abrasive brushes automatically follow 3D helical contours, ensuring burr-free chamfers with a consistent 0.3mm corner radius without degrading tooth profiles.
Heavy structural casting power housings made of ductile iron (QT500/QT600) or cast alloy steels feature heavy risers, casting gates, and uneven parting lines. Our heavy-duty robotic grinding stations utilize high-power (30kW+) diamond grinding wheels with dynamic vibration damping. The robotic system rapidly cuts casting gates and buffs parting lines within a fully enclosed sound-dampened cabin, slashing cycle times by over 70% compared to conventional hand methods.
Modern Tier 4 / Stage V emission-compliant off-highway diesel engines utilize high-pressure common rail fuel systems and high-nickel ductile iron turbocharger turbine casings. Automatic interior-bore deburring and exterior contour polishing prevent thermal stress concentration micro-fractures under exhaust gas temperatures reaching 850°C.
A Global Leader in Casting, Grinding, and Polishing Solutions
We are a comprehensive enterprise intelligent equipment manufacturing, processing, sales, maintenance and technology research and development. Leading in design and manufacture of automatically equipment for faucet production equipment,sanitary ware, bathroom fixtures and metal steel products industries,hardware accessories auto parts industry, door lock industry parts,new energy industry and other products casting, deburring, grinding, machining and polishing automation equipment.
We provide automatic Low Pressure Die Casting Machine (LPDC), Robotic Cell Grinding And Polishing machines, Robotic Deburring Solution, CNC Polishing Machine, Sand Core Shooting Machine, Gravity Die Casting Machine, Industry Furnace, Automatic CNC Sprue Cutting Machine.
Dingzhu serves the manufacturing industries with total solutions of intelligent production management system, innovative production technologies and the eco-friendly renovation plan. We know how to transfer the technology to end users.
Dingzhu’s young and professional engineers focus on innovative technology research and development, strive to create the Dingzhu be a famous brand in worldwide. We have obtained patents of innovation and practical application in products for the Low Pressure Die Casting Machine, Auto Grinding and Polishing Equipment.The company’s strong scientific and technological strength and rich professional experience, from design to installation operations, are constantly improving , with good reputation and quality service by the majority of users and well-know enterprises.
Delivering unmatched technical excellence, customized turnkey engineering, and full lifecycle automation support.
Core members possess 20 years of experience in faucet production equipment R&D, having served over 100 global manufacturing enterprises;
50 patents in self-developed technologies such as dynamic pressure control for low-pressure casting and multi-axis robotic flexible deburring algorithms;
Comprehensive technical support, from mold design (CAE simulation supported), factory layout planning (lean production layout), to personnel training, ensuring rapid production startup.
Global Service Network: 24/7 Rapid Response
Localized Support: Direct service centers in India, Turkey, Egypt, and Iran, staffed with 10+ professional engineers;
2-hour response to equipment failures, on-site support within 48 hours; global spare parts inventory for key components to ensure zero production downtime;
Provide equipment intelligent upgrades and process iteration solutions to continuously enhance customer competitiveness.
We are trying to open foreign markets for our range of products. We have exported machines to Southeast Asia, Middle East, Africa, South Asia, Europe etc. Dingzhu is looking forward to working with you, let’s be part of you in the path of development.
China (HQ)
Xiamen Dingzhu Intelligent Equipment Co., Ltd. specializes in the research and development, production, sales and service of automatic low pressure casting machine (LPDC), robotic cell grinding and polishing machine, furnace, gravity die casting machine, automatic sand core shooting machine, cnc polishing machine ect. A number of national patents have been obtained. The range of equipment covers a wide range of fields and applications including: sanitary ware industry, hardware industry, auto parts industry, new energy industry, electronics industry and many other industries.
Looking to the future, Dingzhu intelligent equipment will adhere to the industry breakthrough as the leading development strategy, and constantly strengthen technological innovation, management innovation and marketing innovation as the core of the innovation system, and strive to become the leader in the field of intelligent, automated equipment application solutions.
Founded in 2016 | Driven by continuous technological breakthroughs, lean craftsmanship, and customer-first values.
Xiamen Dingzhu Intelligent Equipment Co., Ltd, since its establishment in 2016, our R & D team has developed into 60 + numbers, the plant's floor space has been expanded to 2,525 square meters, the turnover in 2022 is a one-off to reach 100 million U.S. dollars, and now we have become a company with a certain scale of business, which is closely related to our company's corporate culture.
Company Vision: Be an industry leader to create a world famous brand
Company Mission: Free the hands of workers and make production safer, greener, and more efficient
Core Values:
People Oriented
Customer First
Continuous Innovation
Pursuit for Excellence
Dare to innovate Continuous optimization Emphasis on technology and service.
People-oriented is the core feature of Dingzhu intelligent equipment.
We invest in staff training every year and provide free lunch to our staff.
We have a great vision, demand high standard of work, and pursue “let all the work become a fine product”.
Explore our full line of multi-axis robotic grinding cells, CNC deburring units, and custom automatic polishing systems engineered for metal fabrication excellence.
