High-precision SS316 Flanges / Sleeve-type Machined Parts

1. Product Introduction

Lionse is committed to providing High-precision ss316 annular flanges / sleeve-type machined parts that meets a wide range of  requirements. We leverage our state-of-the-art machining technology to manufacture parts with tight tolerances and exacting specifications. We also offer a range of surface treatments to enhance the durability and appearance of your parts,such as anodizing, painting, or powder coating etc..

2. Product Parameter (Specification)

Production Name	High-precision SS316 Flanges / Sleeve-type Machined Parts
Material Capabilities	Customized
Brand	LIONSE
Surface Treatment	As customer’s requirements
Origin	Qingdao, China
Diameter	All sizes

3. Product Details

Challenges in the processing of the High-precision ss316 annular flanges / sleeve-type machined parts:

1. Long thin-walled structure → prone to deformation and vibrationDifficulty: The cylinder is relatively long and the wall is thin, with a large length-to-diameter

ratio. During turning, it is easily affected by cutting forces and thermal stress, causing issues such as tool deflection, taper, ovality, and chatter, leading to out-of-tolerance cylindricity and straightness.

Impact: The dimensional accuracy of the inner hole/external round surface is difficult to ensure, the roughness of the sealing surface deteriorates, and jamming or leakage may occur during assembly.

2. Multiple External Circular Annular Sealing Grooves → Groove Consistency and Efficiency

Difficulty: The grooves are numerous, with small spacing and thin walls, making it easy during machining to encounter inconsistent groove width/depth, uneven groove bottoms, and vibration marks. During mass production, it is difficult to ensure uniform groove spacing.

Impact: Improper installation of the sealing rings, resulting in sealing failure; groove shape errors causing assembly interference.

3. Concentricity / Perpendicularity of Flange Threaded Hole and Inner Hole

Difficulty: The flange threaded hole must maintain high-precision concentricity with the inner hole, and the flange surface must be perpendicular to the inner hole. Multiple re-clamping can easily cause reference deviation.

Impact: Uneven force when bolts are connected can lead to leakage at the sealing surface or fatigue fracture of the part.

4. Cutting characteristics of SS316 material → Tool wear and machining efficiency

Difficulty: SS316 has high viscosity, poor thermal conductivity, and a strong tendency for work hardening. During cutting, it easily sticks to the tool, forms built-up edges, and causes rapid tool wear, resulting in poor surface roughness and dimensional variation.

Impact: Low machining efficiency, high costs, and difficulty in meeting surface quality standards.

5. Geometric Tolerances and Sealing Surface Accuracy

Difficulty: The inner hole, outer circle, flange surface, and sealing groove are all critical fits/sealing surfaces, requiring high-precision dimensional tolerances, geometric tolerances, and low surface roughness (Ra0.8~Ra1.6).

Impact: Directly determines sealing performance, assembly accuracy, and service life.

Why choose us?

LIONSE has established a well-deserved reputation in the CNC machining industry for quality, reliability, cost-effectiveness and timely delivery. To meet your expectations for your stainless steel projects, our team of mechanics and engineers will work closely together throughout all stages of product development, from prototype to production. We recognize that each project and its application are unique, so we offer each customer a distinctive yet practical solution, including precision machining services and custom surface treatments. Contact us today and let us start creating your stainless steel parts.

Q1: what products is your company producing?

For over 15 years, LIONSE is a worldwide supplier in the distribution of titanium products, metal working and bearings. The industries we serve is including surgical implants & tools, automotive parts, chemical devices, power generation, mine equipments, aircraft, pumps etc. LIONSE is your reliable supplier.

Q2:How does your company control the products' quality?

Well, as we all know that quality comes first during the business with our customers we always persist in the "Quality is the life of enterprise. we are using the first confirmed cases, production inspection, and packaging seized the entire combination to control product quality strictly.

Q3:What is a flange?

A flange is a common method for connecting pipes, valves, pumps and other equipment. They are usually circular in shape and are secured with bolts and nuts. Flanges are typically made of metal and have a flat surface to ensure a good seal. Flanges are widely used in various fields such as industrial equipment, automobiles and aviation.

Q4:How the flange works?

The flange connection achieves a tight connection by pressing the flange surfaces of two devices together and then securing them with bolts and nuts. During the connection process, gaskets or packing materials are usually used to ensure the sealing of the flange connection point and prevent leakage. This connection method is widely used in various industrial applications to ensure reliable connections between pipes, valves, pumps, and other equipment.