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CIRCLE SYSTEMS, INC.

Circle Systems has been developing and manufacturing magnetic inspection particles for over 40 years. Magnetic particles are our primary business.

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United States

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Overview

Circle Systems has been developing and manufacturing magnetic inspection particles for over 40 years. Magnetic particles are our primary business. Originally named Circle Chemical Co., we have been rooted in the chemistry of magnetic particle inspection since our early days. Our approach has led to products that utilize state of the art chemical technologies, best in class manufacturing methods, and a broad product line that is unmatched in our industry. Circle Systems has established our reputation as a trusted supplier to some of the most notable manufacturers and nondestructive testing companies around the world.

Circle Systems designs our products with worker safety and environmental protection in mind. Circle has led the way in developing products for use in water based carriers to replace petroleum based chemistry in many applications. We have eliminated harmful propellants from our CircleSafe® aerosol products. Our dry powders include a line of bonded products to reduce airborne dust from the inspection process. Our commitment to worker and environmental safety is not just a catch phrase, it is a genuine business model that is reflected in our products now and into the future.

We are ISO 9001:2015 certified for the manufacture, supply and research and development for the process of non-destructive testing.

Products & Services
CircleSafe® 800A

CircleSafe® 800a uses or latest generation Mi Glow® 800 particles which have exceptional sensitivity, uniform size, and ideal magnetic characteristics for fluorescent magnetic particle inspection.  CircleSafe® 800a is a fluorescent yellow/green powder premixed with our petroleum carrier fluid CircleSol M.  .  CircleSol M ensures excellent particle mobility and surface coverage to allow for a reliable inspection.  CircleSafe® 800a is designed to be used with UV-A light to detect disontinuities typically found in the NDT of forgings, castings, welds, and piping.

The carbon dioxide propellant reduces combustible hazard. It meets or exceeds all applicable industry specifications.

Mi Glow

Advantages

High flashpoint & low odor helps reduce safety concerns

Meets all – relevant industry standards

Economical

Circle Systems unique bonding method offers a very tightly bonded particle which

Provides total particle encapsulation, eliminating free unbonded pigment, resulting in a low background, high performing magnetic particle inspection powder

Sensitivity – The superior Mi Glow 800 particles have larger surface areas which mean smaller sized particles with increased sensitivity and brightness


SIR-CHEM® DRY METHOD

Sir-Chem® dry method magnetic particle inspection powders are highly refined nonfluorescent (visible) pure iron particles used for magnetic particle testing.  Sir-Chem® dry magnetic particle inspection powders offer the largest range of color options to help provide the best possible contrast during the dry magnetic particle inspection process.   Sir-Chem® dry method mag particles come in grey, red, yellow, blue, and black.  All the Sir-Chem® powders are consistently sized in accordance with NDT industry standards and specifications.  Sir-Chem dry method magnetic particle inspection powders provide excellent colored contrast on surfaces with good particle buildup. These dry powder magnetic particle inspection powders are designed to be used in visible light to reveal medium to coarse discontinuities on fabricated components or weldments located on bridges, pipes, large tanks, machinery, and equipment. These magnetic particle inspection dry powders are acceptable for use on high temperature surfaces up to 800°F (427°C) except for Sir-Chem® 63 Red being 600°F (315°C).  Although not recommended depending on the magnetic characteristics of the inspected component indications may form after the magnetization source has been removed. For a successful dry powder magnetic particle inspection apply Sir-Chem® dry powder to the inspection surface utilizing a magnetic particle dry powder spray bulb or powder blower. As the current is being applied, dust the magnetic powder over the part.  While magnetization is being applied gently blow off any extra powder revealing a clear and reliable dry method magnetic particle test.

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