Cooler castings, tighter tolerances
November 2007
Pneumatics & Hydraulics
Application
A steel casting company is using an Exair Model 5215 Cold Gun to remove heat from steel alloy casting gates on a grinding application. The more heat they can keep from the grinding wheel and from the casting gate, the closer they are to tolerance on the secondary polishing and blending application.
An Exair Cold Gun in operation
This is an alternative to expensive mist systems. It eliminates the costs associated with the purchase and disposal of cutting fluids and coolants and the worker related health problems from breathing airborne coolant or slipping on wet floors.
The Model 5215 system includes Cold Gun, single point hose kit, 10 mm cone nozzle, 32 mm fan nozzle and filter separator.
Principle of operation
The Cold Gun incorporates a vortex tube to convert an ordinary supply of compressed air into two low pressure streams, one hot and one cold. The hot airstream is muffled and discharged through the hot air exhaust. The cold air is muffled and discharged through the flexible hose, which directs it to the point of use. The magnetic base provides easy mounting and portability.
Compressed air supply
The gun is designed to use full line pressure of 5,5-6,9 bar. Temperature drop and flow are reduced when lower input pressures are applied. The use of clean, filtered air is essential to correct operation. A manual drain filter that removes moisture, dirt and other particulates from the compressed air is included with each system.
Control options
The Exair Cold Gun gives instant cold air when filtered compressed air is supplied to it. The gun is non-adjustable to prevent freeze-up during use. Cold air flow and temperature drop are factory set to optimise the gun's cooling capacity. Cycling on and off is a good way to save air. The Model 9012 manual shutoff valve can be used for on and off control. To automate turning the gun on and off with the associated grinding machine, the Model 9020 solenoid valve may be used.
For more information contact Rodney Bradley, ETEST, +27 (0)31 702 8302, [email protected], www.etest.co.za
Further reading:
It’s full steam ahead for SKF’s sustainable leak detection solution
SKF South Africa
Pneumatics & Hydraulics
One of SKF’s key customers based in Cape Town, which depends on steam systems for its production processes, was facing costly challenges related to high energy consumption and excessive maintenance hours. SKF recommended the TKSU 10 ultrasonic leak detector as a more streamlined, user-friendly alternative.
Read more...
The smart way to protect hydraulic and pneumatic cylinder rods
Pneumatics & Hydraulics
Many industries replace hydraulic cylinders instead of preventing their premature wear. Seal Saver presents a smarter solution by protecting hydraulic and pneumatic cylinder rods from the start.
Read more...
Industrial acoustic imaging tool
Comtest
Pneumatics & Hydraulics
Comtest offers the Fluke ii Industrial Acoustic Imager series, a hand-held, easy-to-use tool that visualises sounds coming from small leaks in compressed air, gas and vacuum systems.
Read more...
Servo motor series for explosive environments with expanded certification
Pneumatics & Hydraulics
Parker Hannifin’s ongoing commitment to safety and performance in hazardous environments is evident in the new certifications and product improvements for its EY and EX servo motor series.
Read more...
Precision matters: Unravelling the intricacies of hydraulic cylinder honing
Pneumatics & Hydraulics
This article dives into the intricacies of hydraulic cylinder honing, shedding light on its significance, process and the technology behind achieving unparalleled precision.
Read more...
The six pillars of hydraulic system health
Hydrasales
Pneumatics & Hydraulics
Hydrasales, a leader in hydraulic and lube oil industry solutions, offers an extensive range of condition monitoring products designed to safeguard your systems. Here are six essential checks for hydraulic system health to keep your systems in optimal shape.
Read more...
Compressed air preparation
Artic Driers International
Pneumatics & Hydraulics
The choice of compressed air dryers is driven by the air quality demands of your plant.
Read more...
Compressed air treatment do’s and don’ts
Artic Driers International
Pneumatics & Hydraulics
As a long-established importer and manufacturer of air dryers, Artic Dryers often sees the results of poor installation and issues with aftercoolers that create serious problems in air drying systems.
Read more...
Next-gen air compressors for plastics manufacturer
Pneumatics & Hydraulics
Integrated Air Solutions has reinforced its partnership with global compressor manufacturer, ABC Compressors by facilitating the installation and commissioning of two next-generation direct-drive ABC machines for a prominent plastic manufacturer in South Africa.
Read more...
Electrohydraulic shredding of galvanic waste
Pneumatics & Hydraulics
Galvanised parts are among the last big challenges for recycling. ImpulsTec is implementing shockwave or electrohydraulic shredding technology, for the separation of complex material compounds in industrial processes.
Read more...
printer friendly version