Round-Link Chains , Iran

DIN 764 elevator chains are manufactured from high-tensile carbon steel grade M30 or equivalent 630 N/mm². Standard chain sizes are defined by bar diameter d, ranging from 10 to 30 mm. The nominal pitch length is typically 5 times the bar diameter with a ±2.5% tolerance. Minimum breaking force varies from 80 to 520 kN depending on size. Working Load Limit is calculated with a 7:1 safety factor for heavy-duty applications. These chains undergo controlled heat treatment to enhance strength and wear resistance.

The construction features resistance welding with uniform weld seams at the link joints. The link attachment angle is 90 degrees with a rectangular internal cross-section design. Surface hardness after heat treatment ranges from 32 to 38 HRC Rockwell C. Surface coating is typically hot-dip galvanized 70 microns or epoxy paint applied. Suitable operating temperature ranges from -40°C to 200°C. They are produced and tested according to the stringent DIN 764 standard for elevator and lifting chains Class T.You can order and buy Round-Link Chains from Iran by contacting us through whatsaap and email.
WEBSITE: Round-Link Chains Iran