High-grade metal spiral binding filament, suitable for coil books of different colors

Company Profile.pdf

Specification Of Compression Coil Spring

In custom compression spring design, the space allotted governs the dimensional limits of a spring with regard to allowable solid height and outside and inside diameters. These dimensional limits, together with the load and deflection requirements, determine the stress level and mechanical property requirements of the material. It is extremely important to consider carefully the space allotted to ensure that the spring will function properly, thereby avoiding costly design changes.

The illustration of spring dimensions below is recommended as a guide in specifying heavy duty compression springs. The functional characteristics of spring design should be given as mandatory specifications. Secondary characteristics, which may well be useful for reference, should be identified as advisory data. This practice controls the essential requirements while providing as much design flexibility as possible to the spring manufacturer in meeting these requirements.

Quick details:

A. Metal spiral binding coil (any color can be customized), used for notebooks, weekly calendars, calendars, picture albums, etc.. Textbook binding;

C. This product has complete specifications, 2:1 3:1 4:1 pitch, and inner diameter up to 16-50MM.

d. The thickness of the wire diameter can be thickened on a conventional basis.

e. Packaging can be made according to requirements.

Specifications :

Advantage :

1. Factory supply with competive price ;

2. Wide range of color choice ;

3. Pre-cutting service for free ;

4. Widely used in various kinds of booking binding ;

5. Fast delivery .

Physical shooting:

Environmental certificate:

Factory exterior：

HongKong Sudi Stationery Limited, established on 20 13, is a professional manufacturer of nylon double-coated wires, PVC plastic spirals, metal single spirals, calendar hangers, binding machines, punching machines and various spiral forming machines.

We have well-equipped testing facilities and strong technical force. Our double wire adopts imported nylon covered wire. All our binding materials have passed strict SGS testing and CE certified binding machines, which meet the standards of the European and American markets. At the same time, we are the supplier of LEO PAPER GROUP, the largest printing company in Asia. After years of sales, our products have won a high reputation and wide recognition at home and abroad.

Our products have a wide variety, high quality, reasonable price, beautiful design, and are widely used in printing and other industries.

Our products are widely recognized and trusted by users, and can meet the ever-changing economic and social needs.

We welcome new and old customers from all walks of life to contact us for future business relations and mutual success!

GSG Environmental Certificate：

HLMTS Test Report:

Workshop interior：

Quality inspection departments：

Cut strip warehouse：