home Home / / SUS304 CNC Turned Stepped Shaft
left
right

SUS304 CNC Turned Stepped Shaft

As a versatile core component, the SUS304 stepped shaft is widely used in transmission, positioning, and structural applications across automation and industrial machinery. Leveraging the corrosion resistance of SUS304 and precise CNC machining technology, we deliver products with stable dimensional accuracy, reliable performance, and strong adaptability, fully meeting the diverse needs of automated equipment, tooling fixtures, motors, and general mechanical systems.
Quick Info:
  • Material: SUS304 Stainless Steel (SUS316 optional)
  • Main Process: CNC Turning, Centering, Facing, Grooving, Chamfering
  • Key Features: Corrosion resistance, high precision, stable transmission, reliable positioning
  • Typical Applications: Automation, Industrial Equipment, Robotics
  • Key Tolerance: ±0.01 mm
Quote Get Free Quote

At KT, we specialize in precision CNC turning of stainless steel components, focusing on the R&D, production, and quality control of stepped shafts, transmission shafts, and locating shafts. With rich experience in SUS304/SUS316 stainless steel machining, we integrate advanced CNC equipment, strict process control, and full-dimensional inspection to provide one-stop customized solutions for global customers in automation, industrial machinery, and precision equipment industries. Our commitment to high precision, stable performance, and batch consistency ensures that every product meets customer specifications and industry application requirements.

Product & Process Overview

The SUS304 CNC turned stepped shaft, also known as step shaft, transmission shaft, or locating shaft, is a multi-diameter precision component designed for transmission, positioning, and structural support. Its multi-step structure is tailored to assemble bearings, gears, seals, or fixtures, realizing integrated functions of torque transmission, workpiece positioning, and mechanical support.

SUS304 stainless steel is selected as the core material for its excellent corrosion resistance, good machinability, and moderate mechanical strength, making it suitable for both general industrial environments and slightly corrosive working conditions. The production process adheres to strict standards, including:

  • Blank selection and pre-processing: Ensure material uniformity and eliminate internal stress;
  • Precision CNC turning: Achieve multi-stage diameter forming, with strict control of step size and concentricity;
  • Auxiliary processing: Grooving, chamfering, and deburring to ensure assembly compatibility;
  • Surface finishing: Maintain the inherent corrosion resistance of SUS304 while ensuring surface smoothness;
  • Full inspection: Use precision measuring tools to verify dimensions, concentricity, and surface roughness, ensuring product qualification.
ItemSpecification
MaterialSUS304 Stainless Steel (SUS316 optional)
Main ProcessCNC Turning, Centering, Facing, Grooving, Chamfering
Dimensional Tolerance±0.01 mm
Concentricity≤0.01 mm
Surface RoughnessRa ≤ 1.6 μm
Material FeaturesCorrosion-resistant, wear-resistant, good machinability
Working ConditionAutomation transmission, workpiece positioning, mechanical support

Advantages

  • Excellent Corrosion Resistance: SUS304 stainless steel effectively resists corrosion from moisture, ordinary industrial media, and mild chemicals, extending service life in complex environments.
  • High Precision Machining: CNC turning technology ensures accurate step dimensions, high concentricity, and smooth surface, avoiding assembly jamming and ensuring stable transmission and positioning accuracy.
  • Versatile Application: Adapt to multiple scenarios such as automation transmission, workpiece positioning, motor power transmission, and general mechanical support, with strong compatibility.
  • Stable Mechanical Performance: SUS304 material has moderate strength and toughness, withstanding torque and load during long-term operation, ensuring reliable performance.
  • Easy Assembly: Reasonable step design matches bearings, gears, seals, and fixtures, simplifying assembly processes and improving production efficiency.
  • Cost-Effective & Mass-Producible: Balances high performance and production cost, supports large-scale batch production, meeting the high-volume demand of industrial customers.

Applications

  • Automation Equipment Transmission Components: Used as drive shafts and driven shafts in conveyor lines, module equipment, and automated production lines, responsible for transmitting torque and driving rollers or belts to realize continuous and stable operation of equipment.
  • Tooling Fixtures & Locating Components: Served as locating mandrels in fixtures, used to fix the position of workpieces, such as support shafts and guide shafts in precision fixtures, ensuring the accuracy of workpiece processing and assembly.
  • Motor & Reducer Accessories: Applied as motor output shafts and coupling connecting shafts, used to transmit power; different steps are designed to install bearings, gears, and seals, ensuring the stability and efficiency of power transmission.
  • General Mechanical Structural Components: Used as support shafts and rotating shafts in general machinery, such as valve stems and piston rods in valves and cylinders, undertaking structural support and motion transmission functions.

Contact Us

    👍 Sharing Your 2D Drawings & 3D Models Will Help Our Engineers to Quote Faster

    NDA available upon request.