Deep Gauge Accurately Measure Disc Spring Free Height | Disc Spring National Standard and Technical Interpretation

In the production and quality control of disc springs, dimensional inspection is a critical step to ensure products meet design specifications. Particularly, free height measurement directly impacts the load characteristics and service reliability of disc springs. Jiangsu Sanzhong Elastic consistently adheres to national and international standards, leveraging its mature disc spring technology to deliver high-precision, premium-quality products to customers.

Main items of disc spring size inspection

The dimensional inspection of disc springs primarily involves four key parameters: outer diameter, inner diameter, free height, and thickness. The inspection criteria include product drawings (for finished products), process cards (for semi-finished products), and technical specifications (for standard components). Generally, unless otherwise specified, standard disc spring products are inspected according to Grade II precision. If Grade I precision is indicated, strict compliance with Grade I standards must be maintained. For export applications, DIN2093 "Disc Spring Dimensions" serves as the primary standard, which aligns with China's GB/T 1972 "Disc Springs" requiring Grade I precision. This demonstrates our company's rigorous commitment to international quality standards.

Key technical points of free height measurement

When measuring the free height of a leaf spring, use a depth vernier caliper with a 0.02mm resolution. During operation, ensure the caliper jaws lightly contact the top surface of the spring to avoid excessive pressure that could cause deformation and measurement inaccuracies. The technical specifications explicitly require using the spring's highest point as the reference for determining free height.

For mass production, our company has introduced an automatic spring height sorting machine to achieve efficient and accurate classification. The equipment can automatically classify products into three categories: "qualified", "over-height" and "under-height", which facilitates subsequent adjustment or rework, greatly improving quality inspection efficiency and product consistency.

Process standards and enterprise quality control

The dimensional tolerances specified in process cards are established through the expertise of design engineers and typically exceed general industry standards. Leveraging our internal quality control protocols and decades of technical expertise, we implement rigorous manufacturing standards that ensure complete quality control throughout the production cycle—from raw materials to finished products—ensuring every disc spring meets or even surpasses customer expectations.

Choose crowd flexibility, choose professional and reliable

As a leading disc spring manufacturer in China, Jiangsu Sanzhong Elastic consistently upholds rigorous production standards. By integrating national specifications with cutting-edge technologies, we deliver safe, reliable, and high-performance elastic component solutions. Whether for standard applications or specialized operations, we provide professional technical support and premium product services tailored to your needs.