Electropolished Stainless Steel Precision Components

We specialize in the production of electropolished stainless steel turning parts, supported by integrated CNC machining processes. These components are widely used in industrial equipment, precision instruments, and transmission systems.

With high precision, excellent corrosion resistance, and strong adaptability as core advantages, we provide full customization to meet diverse global small-batch requirements. From raw material inspection to 100% final inspection, every process is strictly controlled to ensure all machined stainless steel parts meet precision assembly standards.

Flexible Customization

We offer comprehensive customization with fast response based on your drawings:

• Outer diameter / inner diameter

• Length and step dimensions

• Thread specifications (imperial, unified, metric, and custom)

• Chamfers, radii, and structural features

We provide fast quotations and flexible production schedules:

• 7–10 days for small batches

• 15–30 days for mass production

Our solutions are designed to match the assembly requirements of various equipment with high accuracy.

Material & Electropolishing Advantages

After electropolishing, stainless steel components are commonly used in applications involving frequent human contact, such as public handrails and consumer products.

Sweat contains salts that can cause untreated stainless steel to darken or corrode over time. Electropolishing improves corrosion resistance and provides a bright, smooth surface finish without affecting dimensional accuracy. It is also environmentally friendly.

This treatment is widely used in products such as stainless steel vacuum flask liners and other hygiene-sensitive components.

Manufacturing Process | Precision CNC Machining

Processing parameters are optimized based on the characteristics of electropolished stainless steel. One-piece machining ensures a seamless structure with no joints, achieving proper assembly clearance and reducing issues such as jamming or loosening during operation. These processes are ideal for a wide range of precision machined stainless steel parts.

Precision Control

• Dimensional tolerance: ±0.02 mm

• Hole/shaft accuracy: ≤0.01 mm

• Step and chamfer position accuracy: ≤0.03 mm

• Thread precision: customized to requirements

These ensure accurate fit and stable performance in assembly.

Surface Treatment Options

Electropolishing serves as the base treatment, with additional options available:

• Passivation

• Zinc-nickel alloy plating

• Zinc plating

• Chrome plating

These processes further enhance wear resistance and corrosion resistance while maintaining a smooth, defect-free surface.

Full Inspection Process

• Material composition verification

• Electropolishing quality inspection

• CMM dimensional inspection

• Geometric tolerance inspection

• Surface finish inspection

• Assembly fit testing

Each stage is strictly controlled to ensure consistent product quality and eliminate defective parts.

Order Support

We support both neutral packaging and custom branded packaging. Packaging includes internal anti-scratch protection and cushioning to prevent impact during transportation, fully compliant with international shipping standards.

Lead times are flexible and reliable, supporting global procurement needs for multi-variety, small-batch machined stainless steel parts, with dedicated one-to-one service from drawing optimization to final delivery.

Core Performance

Dimensional Accuracy

• Diameter / hole tolerance: ±0.02 mm

• Length tolerance: ±0.03 mm

• Wall thickness tolerance: ±0.01 mm

Suitable for compact assembly spaces and complex geometries such as thin shafts and irregular structures.

Geometric Accuracy

• Concentricity ≤0.02 mm

• Roundness ≤0.01 mm

• Perpendicularity ≤0.03 mm

Ensures stable operation without wobble or jamming.

Corrosion Resistance

After electropolishing combined with additional surface treatments, parts can withstand moisture, mild acids and alkalis, and industrial dust, significantly reducing corrosion and oxidation over time. Suitable for both indoor and outdoor environments.

Service Life

Under normal operating conditions, components maintain stable performance for over 5 years, with minimal deformation, corrosion, or wear.

Design Flexibility

Custom features such as precision drilling, dedicated thread interfaces, chamfers, and stepped structures can be produced according to specific equipment designs. Engineering support for drawing optimization is also available.

Core Specifications

Category	Specification
Machining Accuracy	Dimensional tolerance ±0.02 mm, geometric tolerance ≤0.03 mm, hole/shaft accuracy ≤0.01 mm
Lead Time	7–10 days (small batch), 15–30 days (mass production)
Packaging Standard	Neutral packaging / custom branded packaging (individual anti-scratch protection + outer cushioning for safe transport)

Typical Applications

Transmission components

Precision shafts, eccentric shafts, connection shafts, power output shafts.

Fixing components

Sleeves, locking rings, connector sleeves, bearing shafts.

Functional components

Precision bushings, threaded shafts, locating pins, snap-fit shafts.

Instrumentation components

Precision parts for instruments, positioning elements, sensor components.

Our Commitment

With years of experience in electropolished stainless steel precision components, we have developed dedicated machining processes and quality control standards tailored to this material.

From electropolishing treatment to CNC turning, every stage is strictly controlled. We provide end-to-end service - from drawing evaluation and process design to production, delivery, and after-sales support.

With high precision, strong corrosion resistance, and excellent adaptability, our solutions help global customers develop competitive products and establish long-term partnerships in machined stainless steel parts manufacturing.