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ROTARY PARTS WASHER RINSES AND DRIES

Published by Guyson on April 18, 2008

Guyson Corporation has upgraded its Orbit 800 rotary table parts washer to incorporate expanded cleaning process capabilities and a convenient touch-screen control panel.

Orbit 800 Rotary Parts Washer

Orbit 800 Rotary Parts Washer

The Orbit 800 washer has a standard 750-pound-capacity stainless steel wire mesh basket that is 5 inches deep and 31.5 inches in diameter at a loading height of 31 inches. Surrounding the gearmotor-driven rotary table on three sides are spray bars, each with an array of V-spray jets to ensure strong impingement of cleaning solution on the top, bottom and sides of components loaded in the slowly revolving basket.

A thermostat-controlled 12 KW electric immersion heater maintains the aqueous cleaning solution at the desired temperature up to a maximum of approximately 180 degrees Fahrenheit (80° C). The standard 2 HP vertical seal-less pump delivers up to 50 gallons of solution per minute at a line pressure of 40 PSI. Single or dual in-line cartridge or bag-type filters remove particulates from the recirculating wash solution before it enters the spray bars. Solid contaminants such as chips and debris are removed from the fluid as it returns to the wash tank by a strainer basket located below the process chamber.

When an individual customer’s cleaning requirements include rinsing, pneumatically operated valves are installed to block the return of liquid to the wash tank and allow rinse water to be diverted to drain, to a heated recirculated rinse tank or to a centralized water recycling system. After a brief draining period at the end of the wash cycle, which may be promoted by air blow-off, the diverter valves are actuated and the timed spray rinse cycle starts. Drying of components at the end of the cycle can be accelerated by air knife delivery of compressed air at ambient temperature, turbo-blown air or heated air, as the table continues to rotate.

A compact touch-screen panel replaces numerous separate buttons, dials and lights with a streamlined and simplified interface. Numeric data such as solution temperature or remaining cycle time, as well as text information and prompts are graphically shown in a logically organized hierarchy of customized display screens.

The overall footprint of the parts washer is 54 inches wide by 66 inches deep (137 x 168 cm). Opening and closing of the double-skinned and insulated stainless steel clamshell hood of the Orbit 800 is assisted by gas springs. A safety interlock on the cover of the process chamber prevents operation of the solution pump unless the hood is fully closed and instantly stops pumping if someone attempts to open the cover during the spray wash cycle.

Prospective users of aqueous spray cleaning systems are encouraged to submit sample components for free laboratory test cleaning and application engineering evaluation at the Guyson factory in northeastern New York State.

Orbit 800 Rotary Parts Washer
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GRIT BLASTING MACHINE PREPARES SURFACES CONSISTENTLY

Published by Guyson on February 15, 2008

Guyson Corporation has designed and built an automated abrasive blast system to process circular components up to 40 inches in diameter. The Model SP-10 is capable of producing a specified profile and uniform roughness over the entire target surface with a high degree of repeatability.

Model SP-10The 60 x 60 x 60-inch blast chamber of the SP-10 has an automatic sliding door and is equipped with rails and a transfer cart that rolls in and out of the finishing enclosure under power. A 36-inch diameter turntable on the cart is motor-driven to rotate at controlled and adjustable speed during the programmed automatic blasting cycle.

Eight suction-feed blast guns are mounted on a swing-arm actuator that provides accurate horizontal traversing motion that is synchronized with the rotation of the component. Each gun is secured on a telescoping bracket that enables nozzle angles and offsets to be adjusted. Programmed blasting and blow-off process routines for numerous different components, including table RPM, nozzle traverse stroke and speed, blast cycle and blow-off cycle duration and other parameters can be stored and recalled by the SP-10′s powerful programmable logic controller (PLC).

Designed for use with harsh mineral grit abrasives, the SP-10 blast system is supplied with a cyclone separator and media reclaimer that is lined with abrasion-resistant urethane rubber. The reclaimer also has an in-line magnetic separator to remove any burrs or metal particles from the blast media. Electronic media level sensors linked to the PLC detect when the supply of grit is low, and the system automatically replenishes the media from a hopper dispenser without interruption of the blasting operations.

The interior of the blast cabinet and the rotary table have a bonded rubber lining to provide abrasion protection. A side-benefit of the lining is quieter operation. Catch-trays under the track extension collect blasting grit carried out from the finishing chamber, and it is pneumatically conveyed back to the media reclaimer by thick cast urethane ducting.

Prospective users of automated blasting systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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DUST COLLECTOR FOR PRESSURE-BLAST CABINETS

Published by Guyson on January 14, 2008

Guyson Corporation has introduced a cartridge-type dust collector that has sufficient capacity for large manual blast cabinets with direct pressure media delivery. The Model D1000 is also suitable for the dust collection requirements of moderate-sized automated blasting systems with multiple blast guns.

Guyson D1000 Cartridge Dust Collector

Guyson D1000 Cartridge Dust Collector

With its 3 horsepower (2.2 KW) blower and non-ferrous 3,450 RPM impeller, the D1000 dust collector extracts an adjustable 1,000 cubic feet of air per minute. Fabricated in continuously welded 12-gauge steel plate, the overall dimensions of the unit are 112″ H x 40″ W x 50″ D (2845 x 1016 x 1270 mm). Reinforcement of the body panels and doors dampens vibration and helps reduce the dust collector’s operating noise level below 80 dBA. The unit is supplied with a 22-gallon rolling dust drum.

Each of the dust collector’s two pleated paper cartridges has a filter area of 226 square feet. The filters are treated with flame retardant and pre-coated to provide an average efficiency of 99.99 percent for particles of 0.5 micron or larger. Guyson offers an optional HEPA filter for the Model D1000 to meet the most stringent particulate emissions standards.

Automatic pulse jet cleaning of the filter cartridges is microprocessor-controlled in the D1000. When dust accumulates on the surface of the filter, a brief and measured burst of dry compressed air is automatically directed into each cartridge to purge dust from the filter and maintain filtration at full efficiency, without interruption of the air flow and dust collection. A color-coded manometer gauge is installed to continuously indicate the pressure differential across the filters and to clearly show when cartridge replacement is necessary.

Changing of the filters in the Model D1000 dust collector is simplified by a convenient slide-in cartridge carrier and a smooth lever-action clamping mechanism that positively seals and locks the filters in position.

Specifically designed for cabinet-blast dust collection, the D1000 has a butterfly-type blast gate with a clearly indexed dial face and a positive-set locking screw, features that facilitate adjustment and fine-tuning of the cyclone separator and the blast media reclamation system. Guyson customers claim this helps take the guesswork out of balancing the reclaim air flow.

Optional features offered for the Model D1000 include a separate pressure differential gauge to monitor the condition of a HEPA filter, as well as an electronic sensor and fault indicator to alert an attendant when the collector’s dust drum is full.

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PRECISION FINISHING PRESSURE-BLAST SYSTEM

Published by Guyson on January 8, 2008

Guyson Corporation has introduced an expanded rotary indexing spindle-blast machine with direct pressure media delivery and special media reclamation features to precisely control the surface roughness of components. The Model RXS-1400 blast system is adapted for production use in preparation of surfaces prior to application of advanced functional coatings.

RXS-1400 Pressure-blast Finishing System

RXS-1400 Pressure-blast Finishing System

The blast cabinet, with its wrap-around work table and vacuum return media catch-tray at the front loading station, stands 78 inches high, 94 inches wide and 102 inches deep (1.98 x 2.44 x 2.59 meters). Extra wide vertically sliding doors allow processing of components up to approximately 20 inches (500 mm) in diameter.

Six sealed and double-shielded ball bearing spindles are equally spaced around the circumference of the RXS-1400′s rotary table. The standard weight capacity of each spindle is 55 pounds (25 kg). A high quality cam indexer provides extremely accurate positioning of the spindles as they move from the loading station to blast and blow-off locations in the finishing enclosure, then return to the front unload station. The radial indexer is so exact that it is fully compatible with any type of automated loading facility, including machine-tending robots or pick-and-place devices.

A 20 cubic foot capacity pressure vessel with abrasion-resistant boron carbide grit valves meters blasting media to 7 pressure-blast nozzles clustered around two blasting stations in the blast chamber. Adjustably mounted at the optimum angles and distances from the components, three nozzles programmably traverse vertically at one blast station, while four nozzles traverse horizontally at the second blast station. Nozzle motion is synchronized with controlled, adjustable and programmable rotation of the fixtured component to ensure thorough and repeatable coverage.

Media reclamation in the precision finishing system is enhanced with the addition of a vibrating screen classifier in the cyclone separator and pressure vessel stack-up. Media classification enables the tightest control over blast particle sizing, delivering only screened grit to the nozzles and yielding the most consistent surface roughness and uniformity of the specified texture.

The specially configured controls system includes a touch-screen interface for simplified machine programming and monitoring, as well as software to permit data logging and documentation of all blasting parameters to ensure a high level of process integrity.

Prospective users of automated blasting systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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BLAST SYSTEM FOR COMPOSITE STRUCTURES

Published by Guyson on December 20, 2007

Guyson Corporation has designed a pass-through blasting system for processing structural materials of fiber glass reinforced composites. Nondestructive dry blast surface preparation facilitates subsequent bonding and coating operations.

Through-Feed Blast System

Through-Feed Blast System

The 66-inch wide by 60-inch deep (1676 x 1524 mm) cabinet is fitted with eight suction-blast guns securely mounted on adjustable telescoping brackets. Each gun can be locked in a fixed position at the correct offset and angle to direct its blast stream at a portion of the target surface, with the blast patterns of multiple guns overlapped to provide uniform 360-degree coverage of the work. The feed rate of the continuous work through the driveless in-line blast system is determined by the user’s in-plant material handling system.

Both the entry and exit side of the finishing enclosure have a rubber-flapped vestibule to isolate the blasting process. The exit vestibule houses air knives to blow off media and dust. The machine manufacturer claims that this three-chamber design reduces the potential for carry-out of blasting media from the cabinet and lowers the operating noise level of the surface preparation system. A full-width side-hinged door at the front of the blast cabinet provides access for gun adjustment, inspection and maintenance.

To support its use in pass-through surface preparation of continuous structural material, the blast system is optionally equipped with a storage hopper that automatically adds media whenever electronic sensors detect a low media level, well in advance of the point when the condition could interrupt the flow of media to the guns and compromise the finishing process. Electronic sensors at the entry and exit port of the blast enclosure are linked to the system’s programmable logic controller (PLC), which automatically turns off the blast guns when no work is present and turns them back on when feeding of material resumes. Sensors and fault indicators are also provided to signal if there is a drop in the plant air supply pressure, when the dust collector drum is full or if media should be added to the dispensing storage hopper.

The interior of the blast machine is fully lined with abrasion-resistant rubber that is bonded to the continuously welded steel plate walls and cabinet hopper. Likewise, the inlet elbow, body and cone of the cyclone media reclaimer are rubber lined. Thick cast urethane rubber ducting pneumatically conveys reclaimable abrasive from the blast cabinet to the cyclone separator. These features, along with bronze blast guns, boron carbide blast nozzles and urethane media delivery hoses, are designed for extended service in production blasting with harsh abrasive grit media.

Prospective users of automated blasting systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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ROTARY PARTS WASHER CLEANS HALF-TON LOAD

Published by Guyson on December 3, 2007

Guyson Corporation now offers its Orbit 1000 Model rotary cleaning system with touch-screen controls, a 1,000-pound capacity turntable and powered opening and closing of the wash chamber cover.

Orbit 1000 Rotary Parts Washer

Orbit 1000 Rotary Parts Washer

The upgraded parts washer has a 65 x 77 inch footprint and stands 55 inches tall with the lid closed (1651 W x 1956 D x 1397 H mm). The gearmotor-driven turntable holds a 42-inch (1,066 mm) diameter stainless steel round wire mesh basket that has a convenient loading height of 31.4 inches (798 mm).

The slowly rotating table loaded with components is surrounded on three sides by spray bars fitted with high-impact V-pattern jets to assure strong impingement of the spray and effective flushing action to remove surface contaminants during the timed cleaning cycle. Rinsing and air knife blow-off cycles are provided optionally.

High quality stainless steel is used to fabricate the 132-gallon (500 liter) solution tank and the spray washing enclosure of the Orbit 1000 in order to resist corrosion from potentially aggressive aqueous cleaning solutions. The tank, wash cabinet and double-skinned hood are heavily insulated to retain heat and reduce the energy demand of the system’s 12 KW thermostatically controlled electric immersion heater.

Numerous buttons, switches, lights, dials and other separate electrical or electronic components have been replaced by a sleek and easy-to-use touchscreen control panel. This streamlining of the human-machine interface (HMI) eliminates many wearable parts, reduces ongoing maintenance expense and simplifies operation of the machine. The HMI displays text or numeric information, such as solution temperature or remaining cycle time within an intelligently organized graphic layout that helps the user quickly determine the status of key system functions and identify faults.

The option of an electrically powered opener for the clamshell hood of the Orbit 1000 allows a person of any height or build to conveniently load and unload the parts washer. Other optional equipment includes a vapor extractor with mist filter, a belt-type oil skimmer, dual inline filtration of the spray solution and a fluid level control that automatically adds water or blended detergent to the tank to compensate for evaporation.

Prospective users of work cell parts washing systems are encouraged to submit sample components for free laboratory test cleaning and application engineering evaluation at the Guyson factory in northeastern New York State.

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ABRASIVE BLASTER ADAPTED FOR CRANE LOADING

Published by Guyson on November 21, 2007

Guyson Corporation offers its Model 10 and other large blast cabinets with the option of a slotted roof that enables safe and convenient loading and unloading of heavy work pieces.

Model 10 Blast Cabinet slotted for crane loading

Model 10 Blast Cabinet slotted for crane loading

The standard Model 10 cabinet has a roomy blast finishing chamber that is 60 x 60 x 60 inches (1.5 x 1.5 x 1.5 meters). Cabinet-blast machines of this size are frequently used for blast cleaning or surface preparation of large, heavy components or bulky fabrications that are handled by an overhead crane or hoist.

One alternative is to design the blast cabinet with a track extension and a roll-out transfer cart on one or both sides. However, in work spaces with a tight floor plan layout, the external track may occupy more square footage than is desirable. The crane slot allows direct loading of work through the full-depth, side-hinged swinging door, without the sacrifice of extra floor space. Rubber flaps seal the slot, and it has a hinged dust cover.

The Model 10 blast cabinet is typically equipped with a powered turntable in the blasting enclosure to help the operator position heavy work for improved access to all surfaces. Two sets of armholes allow coverage of taller components.

While large-cube blast cabinets are normally supplied with direct pressure media delivery to enable faster processing of components that have a lot of surface area, the Model 10 is also available as a more economical suction-blast system. In either case, a cyclone media reclaimer is included in the system to separate dust and fine particles from the reusable shot or grit, maintaining the effectiveness of the media mix. The third element of the complete abrasive blasting system is a cartridge-type dust collector that filters 1,000 cubic feet of air extracted from the blast enclosure each minute of operation.

For blasting with harsh abrasive media, the cabinet is protected from induced wear by the bonding of quarter-inch thick rubber sheet to the turntable, interior walls, doors and the media hopper at the bottom of the machine, as well as the inlet elbow, body and cone of the cyclone reclaimer. The glazed-in safety glass view windows are protected from frosting by a sacrificial inner window that is square-cut from common glass and gasketed in a removable frame that facilitates quick changing when visibility conditions dictate.

Prospective users of custom manual blast systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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BLAST CABINET AUTOMATES SURFACE PREP

Published by Guyson on November 13, 2007

Guyson Corporation offers a small-footprint rotary blast machine with a single spindle, multiple blast guns and programmable process routines for repeated surface preparation in work cell manufacturing environments.

Guyson RSSA-6 Rotary Automatic Blast System

Guyson RSSA-6 Rotary Automatic Blast System

A vertically sliding front loading door is automatically opened by a pneumatic cylinder at the completion of the timed blasting and blow-off cycle. The door is provided with a vacuum return catch-tray to retain blast media in the cabinet. When the machine is to be loaded by a human operator, closing of the door and automatic initiation of the process cycle requires holding of two pressureless photosensitive thumb switches. For unmanned automatic operation, the blast cabinet is designed with automation-compatible controls, so it can readily be interfaced for loading by a machine-tending robot or pick-and-place device.

Inside the work chamber, up to six suction-blast guns are mounted on telescoping adjustable brackets at the proper angles and offsets to ensure uniform coverage of target surfaces. In many cases, selective or overall treatment can be accomplished with the guns locked in fixed position as the component is rotated at controlled and adjustable speed. Guyson also offers programmable motion systems for the blast guns to provide oscillating, linear, multiple-axis or robotic nozzle movement that is synchronized with component rotation.

A touch-screen panel simplifies entry and monitoring of process control parameters such as spindle rotation speed or blast cycle duration. It clearly gives text and graphic indications when faults, such as insufficient air supply pressure or low media level, are detected by electronic sensors.

The automated cabinet-blast system is designed to use fast-etching mineral grit abrasives, such as aluminum oxide and silicon carbide, to quickly and consistently produce a specified texture or roughness on target surfaces. Thus, numerous abrasion protection features are incorporated in the system to resist the erosive effects of such harsh blasting materials.

All interior surfaces of the blast cabinet, as well as the cyclone media reclaimer’s body, cone and inlet elbow have a bonded abrasion-resistant rubber lining. In addition to its role in protection of the machine, the bonded liners serve as an acoustic insulator to deaden the sound of the air-blast process. Extra thick cast urethane rubber ducting carries exhaust air with entrained abrasive from the blast cabinet to the cyclone reclaimer. This material outlasts standard-duty flexible ducting many times over. Urethane rubber hoses deliver abrasive to the cast bronze blast guns, which are fitted with super-hard boron carbide nozzles.

Prospective users of automated gritblasting systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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BEAD BLAST SYSTEM CLEANS BRAZED PARTS

Published by Guyson on October 15, 2007

Guyson Corporation has designed and built an automated rotary blast system to remove scale and flux residues from brazed components. The bead blasting process facilitates quality inspection and ensures that no surface deposits are later released into the final assembled product.

Guyson RXS-900 Rotary Spindle Beadblast System

Guyson RXS-900 Rotary Spindle Beadblast System

One of a family of multiple-gun rotary models made by Guyson, the RXS-900 beadblast system has six ball bearing spindles around the perimeter of its 42-inch diameter indexing turntable. Custom designed fixtures securely cradle the parts without obscuring areas to be blasted. A precision cam indexer conveys the fixtured component from the front load/unload stations through blasting at two stations within the finishing enclosure and air wash blow-off at a separate station inside the cabinet. The table indexer is sufficiently accurate to permit automated loading by a robot or pick-and-place device.

At each blasting station, four or more blast guns are bracketed in fixed position at the correct angles and distances for concentrated impact treatment of target surfaces. During the timed blast cycle, the component is rotated at controlled speed, enabling uniform 360-degree coverage. The spindle rotation speed is adjustable, and each blast gun has its own pressure regulator to enable fine-tuning of the beadblast process.

The control console of the rotary blast system features a touch screen human-machine interface (HMI) that displays essential process data, such as spindle RPM or remaining cycle time, graphically and in text, quickly and accurately indicating the status of key system functions. When linked to electronic sensors via the machine’s programmable logic controller, the HMI expedites recognition of fault indications such as low media level or insufficient pressure in the plant air supply. A beacon light on top of the console shows workers and supervisors when special attention is needed.

To withstand the effects of production beadblasting, the system has numerous abrasion resistance features, including rubber lining of the blast chamber and the cyclone media reclaimer, boron carbide-lined blast nozzles and urethane rubber media hoses and ducting. The safety glass view windows on both sides of the cabinet are protected from frosting by a disposable inner window gasketed in a quick-change frame.

Prospective users of automated bead blasting systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.

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ABRASIVE BLAST CABINET PREPS LARGE PARTS

Published by Guyson on August 15, 2007

Guyson Corporation has designed and custom built a spacious automatic blast system for gritblast surface preparation of large aircraft engine components prior to thermal spray coating. The Model SP-12 also has an extra blast gun for hand-held operation at its interlocked manual touch-up station.

72 x 72 x 72 inch Blast Cabinet

72 x 72 x 72 inch Blast Cabinet

The SP-12 offers a work envelope with more than 200 cubic feet of space (6.1 cubic meters), with interior dimensions of 72 x 72 x 72 inches (1828 mm cube). A full depth access door with an abrasion resistant and replaceable gum rubber curtain is provided on both sides of the cabinet. Safety interlocks prevent operation of the blast machine when a door is opened.

Urethane rubber lines the cabinet’s 48-inch (1219 mm) diameter, 1,000 pound (450 kg) capacity powered turntable. The table can be rotated clockwise or counterclockwise, both in the automatic mode of operation and when jogged in the manual blasting mode. The speed of reversible table rotation is adjustable to enable processing of different components.

The blast cabinet is fabricated with forklift channels in its rigidly welded steel frame to facilitate relocation of the system. The cyclone media reclaimer and cartridge-type dust collector are similarly equipped for portability.

Three suction-blast guns are adjustably bracketed in position on a vertically traversing boom inside the blasting enclosure. This arrangement allows the nozzles to be pre-set at the correct angles and distances for coverage of many different components. The programmable motion of the blast guns is accurately controlled by a ball screw linear actuator with a stroke of 36 inches. Once the operator has set the start position, the number of traverse strokes, the duration of blast and airwash blow-off, table RPM and other blasting parameters, the surface preparation process can be repeated on a run of parts with a high degree of consistency.

To resist the effects of harsh abrasive grit blasting, the SP-12 system incorporates abrasion protection features such as cast urethane rubber ducting between the blast cabinet and the cyclone separator, bonded rubber lining of the blast chamber as well as the cyclone body, cone and inlet elbow, urethane media feed hoses and bronze blast guns with boron carbide lined nozzles. The view window at the manual blasting station is protected from frosting by a square-cut inner window gasketed in a quick-change frame.

Prospective users of automated surface preparation systems are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson design and manufacturing center in northeastern New York State.

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