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2118-01

Product catalog summary

Product Overview

This document details specifications and performance data for the 2118 series screw-on torque hinges, including material composition, torque values, and durability testing.

Materials

Moving and static hinges: Zinc alloy
Pin: Carbon steel (mild steel)
Door and frame parts: Zinc die-cast

Cycle Life and Durability Testing

The hinges undergo a life test of 20,000 cycles at a frequency of 15 cycles per minute. After testing, the torque degradation must not exceed ±20% of the original torque specification, ensuring consistent performance over time.

Torque Specifications

Torque values are provided for both forward and reverse directions, with distinctions between symmetric and asymmetric torque types. The torque is measured in Newton-meters (N·m).

Forward Torque (N·m)

Ranges from 1.4 to 4.5 N·m depending on model and finish

Reverse Torque (N·m)

Ranges from 1.4 to 4.5 N·m depending on model and finish

Symmetric vs. Asymmetric Torque

Symmetric torque values are equal in forward and reverse directions.
Asymmetric torque values differ between forward and reverse directions.

Product Finishes

Natural (uncoated zinc alloy)
Black textured powder-coated finish

Model Numbering

Models are identified by codes such as 2118-100-20, 2118-123F-11, etc., indicating specific torque ratings, finishes, and torque symmetry.

Key Performance Parameters

Cycle life: 20,000 cycles
Test frequency: 15 cycles per minute
Torque retention: within ±20% after life test
Torque range: 1.4 to 4.5 N·m

Summary

The 2118 series torque hinges are designed for durability and consistent torque performance over extensive use. Material selection and finishes provide corrosion resistance and mechanical strength. Torque values and cycle life testing ensure reliability for door and frame applications requiring precise torque control.

Catalog excerpts

jmmmjBm&rnScrew-on Torque Hinger^nMM: 2118 S;i: CYCLE LIFE: Within 20, 000 cycies static torque stay Within±20% of torque specification 50.8 Door Part/Frame Part: Zinc Die Pin: Mild Steel

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