FACTORY SAFETY

Polyethylene sheet proves a fire buster

A dramatic 30-minute test on an overhead flame resistant sheet 6mm thick contains the fire from a standard 50kg stack of wood and produces no burning or falling droplets.

Hostaglas, made from extruded PET polyethylene sheet, combines good thermal, mechanical and chemical properties, says developer Hoechst. It is suitable as a building material and for use in machine protection and other industrial systems as well as in transport.

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A chromium-free biodegradable rinse avoids the health hazards associated with chromium used in the phosphating process to protect metals before painting.

US developer Challenge describes Rinse 6107 as an organo-metallic polymer, a mildly alkaline liquid quickly soluble in water.

It has an intermediary role, bonding with the liquid or powder paint as well as forming a bond between the metal part and the iron or zinc phosphate protective.

Rinse 6107 eliminates the need for a post-rinse with water and conforms with industry salt spray, humidity resistance and adhesion requirements.

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Pollution control company BTR provides a dust control package aimed at customers looking for an integrated solution.

Based on the new Unicell Concept product from DCE, the first two filtration units have been installed at Norton Cast Products in Sheffield.

A 240m2 filter unit controls non-ferrous metal dust from grinders and welding benches while a 320m2 unit handles metal dust and welding fumes from three fettling benches and an oxy-arc burner.

The Concept machines, available in four sizes, handle dust loads up to 50g/m3.

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Hinge safety switches have a dual role on machinery guards, and cut the installation cost of the usual hinge and interlock arrangement.

As a hinge, they allow operators access to robot cells and other dangerous areas. When the guard is opened, an integral cam on the hinge breaks the electrical contact and stops the machine.

TES Series hinge safety switches are tamperproof for category 2 and 4 use.

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The Eye-Tech welder’s helmet developed by robotics company Esab automatically adjusts visibility for hands-free welding operation.

A light reactive solar-powered visor adjusts from light to dark in fractions of a second.

Made from light, non-flammable Zytel material, there is a switch inside the helmet for manual control of brightness. Filters protect against ultraviolet and infra red radiation. The flared front stops fumes.

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Protective products supplier Ansell has stepped up its Glove Alert campaign to stamp out poor quality products. Research shows that more than 70% of industrial gloves fail to meet claimed standards.

Hands and wrists are the most vulnerable with 58% of industrial injuries caused by cuts and burns. Ansell’s safety helpline is: 00 32 53 710505.

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Economically priced one, two and three station E-Pack emergency stops, comply with EN418, the standard controlling emergency stop buttons installed since January 1997.

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A foaming spray tests for gas leaks from joints, gaskets, welds or surfaces. The Fernox Leak Tester comes in 250ml and 25 litre containers, and produces a slow forming single bubble around a low-pressure leak of less than 2kPa and a stable foam at high pressure up to 7MPa.

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Guardmaster’s Spartan switch combines safety interlocking and guard locking in a single unit producing, at 1200N, what is claimed to be the highest locking force for its size.

Spartan can be fitted to hinged, sliding or lift-off guards. For machines with rundown cycles, Cerebus stopped-motion detectors can be used to operate the switch’s locking solenoid.

It has two safety and one auxiliary contact. A 180 rotatable head gives four actuator key entry points from two actuator slots for versatile installation.

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