Graymills 795-90716 LKN - Manual (Page 2)

795-90716
06/08
Graymills Corporation – 3705 N. Lincoln Avenue – Chicago, IL 60613 – 773-248-6825 – Fax 773-477-8673 – www.graymills.com – 2
INTRODUCTION
The Graymills LKN Liftkleen is a heavy-duty, multi-function, commercial-type parts cleaner designed for both industrial and automotive
applications. It is available for use with either heated aqueous or unheated solvent cleaning solutions.
Standard LKN features include, but are not limited to:
• PLC
control
•
Automated pneumatic lift platform with oscillation feature
•
Automated pneumatic lid operation
•
Timed or untimed cycles
•
24/7 timer capability to turn on and off optional heaters to coincide with production demands
A number of optional features are available:
•
Superflo® Agitation Pumping Unit with an output of up to 10,000 gallons per hour
• Filtration
system
•
Turbo-Boost filtration system – Agitation and Filtration all in one package!
•
Roller conveyor platform (instead of standard grate)
•
Loading and unloading conveyors
•
Drop-in type immersion heaters
•
Skimmer for removing oil and grease-type contaminants
CONSTRUCTION FEATURES
TANK ASSEMBLY
The Liftkleen was designed to withstand the rugged demands of heavy-duty industrial and automotive parts cleaning. All tanks are
leak-tested for 24 hours after welding. The bottom of the tank utilizes double wall construction and is supported by four channels.
Openings are provided to facilitate moving the Liftkleen with a fork-lift truck. A drain is located in the bottom or rear of the tank to which
permanent drain connections can be attached. On all models, the tank sides and cover are insulated with 1” thick polystyrene foam
(equal to two-plus inches of fiberglass).
PLATFORM ASSEMBLY
The Platform is designed to handle loads specified for the particular model of Liftkleen. The platform consists of a welded steel frame
which supports an open composite grate. The platform assembly is made up of a steel weldment, platform support weldment, support
rollers with bearings, hardened steel roller axles, and one or two pneumatic cylinders (depending on the model). Rollers and bearings
on all Liftkleen units are located outside the tank and are never immersed in the cleaning solution. This helps keep moving parts
lubricated. The standard open composite grate of the platform assembly can be replaced with either a stainless steel grate or roller
conveyor platform, both optional.
AUTOMATIC LID ASSEMBLY
On all LKN models, opening and closing the lid is accomplished automatically via pneumatic cylinder(s). Lids, as well as tanks, are
insulated on all units. The internal face of the lid is made of stainless steel to eliminate corrosion caused by vapor condensation.
Unheated units contain a temperature sensitive automatic lid-closing feature. In the event of a fire in the tank, the platform assembly
lowers and the lid closes automatically.
PNEUMATIC CONTROL
The LKN is furnished with a pneumatic system that raises and lowers the platform, a master on/off valve and a filter/regulator/
lubricator. The agitating lift platform contains air controls that agitate the platform up and down through a range of five inches with a
variable frequency of strokes per minute. Stroke frequency depends on load and available air pressure and volume. When available,
adjustments to the system should be made under operating load conditions.
All pneumatic tubing connections are made with Instant Fittings. These make it possible to connect and disconnect the tubing to the
fittings without the use of a wrench. To disconnect a tube, simply push in the collet and pull the tube from the socket. To engage the
tube, push it into the fitting until it hits the stop. Sealing of the connection is achieved with an O-Ring in the fitting.
The air cylinder for raising, lowering and oscillating (agitating) the work platform has pneumatic lines connected to both its “up” and
“down” ports. This provides for smooth, positive, controlled motion in both travel directions with minimal dependence on the weight of
the work load.
The “down” portion of the air cylinder is controlled by flow control valves and/or speed control mufflers. The speed will vary with the
weight of the work load. However, the speed control muffler can be adjusted “in” to slow the downward movement and “out” to speed it
up. The advantage of this method is a reduction of air consumption.