KeyWords: CNC Machining Parts, Custom Machining, Turning Parts, Turned Parts, Wire EDM, CNC Milling Parts, 5 Axis Machining Parts, Precision Machining, Machined Parts, Grinding...
ABOUT US
Rollyu Precision Machining Co., Ltd.
Rollyu Precision Machining Co., Ltd. is a provider of custom precision machining parts located in Shenzhen, China. Reliable Machining Service, Your Top Choice for Machining Parts.All of our staff with more than 10 years experiences in machining industry. We have established good relationship with our customers and been proud to say that ...
PRODUCTS CATEGORY
We mainly manufacture custom machining parts for the application Motion control, Instrumentation, Pneumatic, Hydraulic,Valves, Lasers, Robotics, opto-mechanical, Medical devices, Aerospace, Automation etc
Aluminum Machining Parts
Do you need even faster turnaround on your Motion control, Instrumentation, Pneumatic, Hydraulic Valves, Lasers, opto-mechanical , Medical devices, Aerospace, etc.
Steel Machining Parts
Steel shafts, valves, pins, fasteners, screws, adapters, connectors, needle tubes and brackets are just a sampling of the Machined Stainless Steel Parts we have produced.
Plastic Machining Parts
Engineering Plastic manufacturing: We have the capabilities to design and manufacture customers' plastic products in a variety of Engineering plastic materials. Plastic provides various general benefits such as being inert, weather resistant, non-toxic, non-sparking, and being mechanically stable.
Wire EDM Machining Service
We will also work with you to produce custom stainless steel parts for any kind of application. From prototype to production, we can be with you every step of the way!
CNC Machining Brass Parts
Rollyu has extensive experience precision machining brass & bronze; this knowledge helps us improve the production processes and reduce costs. Our expertise also aids in maintaining the close tolerances expected and required from a precision machine specialist.
Metal Grinding & Knurling
Aluminum precision parts manufacturing. Our production lines are capable of CNC turning and milling machining services. The raw material of aluminum alloy are range used in Rollyu, see below, material we are manufacturing.
Industries
Custom Precision Machining Parts for Motion Control/Instrumentation/Automation
Rollyu manufactures and supplies high precision machining components to customers in the Motion Control sector. Some of the components included are custom...
Precision Machining Parts for Hydraulic
Rollyu manufactures and supplies high precision machining components to customers in the hydraulic equipment sector. Some of the components included are custom valve spools, Pneumatic, manifold, cylinders,pump, pistons, sleeves, and valve bodies.
Precision Machining for Farming
Precision parts in farming and agriculture play a crucial role in enhancing productivity, efficiency, and sustainability. Modern farming operations utilize a wide range of sophisticated machinery and equipment, many of which incorporate highly engineered components designed for specific agricultural tasks.
Precision CNC Machining Parts for Food Equipment
Precision CNC (Computer Numerical Control) machining is integral to the food equipment industry, ensuring high-quality, durable, and hygienic components essential for various devices used in food processing and preparation. The application of precision machining in this sector is critical due to strict industry standards regarding cleanliness.
Precision Parts for Lighting
Precision CNC (Computer Numerical Control) machining is crucial in the lighting industry for the creation of intricate and customized components that meet specific design and functional standards. The lighting sector, ranging from commercial to residential, automotive to aerospace, relies heavily on precisely engineered parts.
Certificate
Shenzhen Rollyu Precision Machining Co., Ltd-QMS ISO13485 Certificate
Rollyu Precision Achieves NQA ISO 13485:2016 Certification: Raising the Bar for
Rollyu Precision Machining ISO9001 Certificate-Chinese Version
Rollyu Precision Machining ISO9001 Certificate-English Version
COMPANY NEWS
05
Feb . 2026
Surface finish standards
Surface finish in sheet metal fabrication affects far more than appearance. Controlled roughness, coating quality, and edge condition directly influence assembly accuracy, corrosion resistance, cleanliness, and regulatory compliance.
04
Weld integrity inspection
Weld integrity inspection ensures structural strength, dimensional stability, and cosmetic quality in sheet metal assemblies. This article explains common weld defects, inspection methods, HAZ control, and how Rollyu Precision integrates multi-stage weld inspection to meet ISO 9001 and ISO 13485 requirements.
03
Critical dimension checks
In precision sheet metal fabrication, not all dimensions carry equal importance. Critical dimensions—such as material thickness, hole location, flatness, bend angles, and fastener seating—directly affect assembly fit, functional performance, and regulatory compliance.
02
Tools used: CMMs, height gauges, pin gauges
Precision measurement is essential to stable sheet metal fabrication. This article explains how CMMs, height gauges, and pin gauges are applied throughout cutting, forming, fastening, and finishing to control dimensional accuracy, reduce variation, and support ISO 9001 and ISO 13485 compliance.
31
Jan . 2026
Quality Control & Inspection
Quality assurance in sheet metal is a multi-stage system, not a final checkpoint. This article covers inspection from material traceability to cutting, bending, welding, fastener installation, finishing, and final CMM verification—helping reduce scrap, rework, and risk while supporting ISO 9001/13485 compliance.
30
Fastener options: PEMs, rivet nuts, welding studs
Selecting the right fastener is critical for thin sheet metal assemblies. This article compares PEMs, rivet nuts, and welding studs, explaining when to use each based on thickness, load, access, and manufacturability, with real DFM guidance from Rollyu Precision.
CUSTOMER TESTIMONIALS
Founder David M.
I have been working with Rollyu for some time now, and I highly recommend their services, the team pay attention to the detail of every component and process was remarkable.
Randy B.
I have worked with Rollyu for over 3 years on many projects. The staff has always been knowledgeable and proficient. They are a machining partner helping me make my clients happy. I can always trust that the quality and delivery of the parts I receive will meet my expectations.
Kevin R.
We have bought a lot of machining parts from Rollyu over the years, and I can say unconditionally that no one stands behind their product better than Rollyu.
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