Mn Steel Spring Band Hose Clamps

Spring Band Hose Clamps work by the elastic recovery force of spring steel. Different from screw type hose clamps, this spring type hose clamp does not rely on manual tightening torque. The clamp automatically applies constant pressure on the hose, even when the hose expands or shrinks due to temperature changes. This is why constant tension spring band hose clamps are widely used in cooling systems, fuel lines, and vibration-sensitive hose connections.

YDCT uses high-quality 65Mn spring steel as standard material. This material has high elasticity and hardness, allowing the clamp to keep stable clamping force after repeated heat cycles. During production, special attention is given to heat treatment temperature. We control the balance between elasticity and brittleness, so the spring hose clamp is not too soft and not easy to crack.

Spring band hose clamps have no adjustment range. The size refers to the natural inner diameter before installation. For example, a nominal size 12.5 mm clamp is controlled within a tight tolerance range, usually between 12.3 mm and 12.45 mm. This accuracy ensures correct fitting during assembly. Standard sizes range from Ø7 mm to Ø30 mm, band thickness from 0.6 mm to 1.5 mm, and band width from 6 mm to 15 mm.

Technical Notice for Professional Selection:

• No Adjustment Range: This clamp has no screw and cannot adjust its size. You must choose the size based on the Natural ID (D). The correct size should be slightly smaller than the outer diameter of your hose after it is connected to the pipe to ensure enough clamping force.

• Measurement Standard: The specification refers to the ID before installation. For example, a standard 12.5mm clamp has an actual measurement around 12.3mm to 12.45mm due to factory tolerance.

• Installation Space: If your work area is very tight, please check the D2 column. This is the minimum space needed when the "ears" of the spring clamp are fully opened during installation.

• Material Strength: Made from high-quality 65Mn manganese steel with professional heat treatment. This ensures the clamp will not lose its tension or become brittle even after many expansion cycles.

• Surface Treatment: We offer various coatings like Dacromet (1000 hours salt spray test), Color Zinc, and Electrophoresis to meet different anti-rust requirements.