| Model 1264 Powder Feeder The Praxair® Model 1264 Powder Feeder is an electronically controlled, pressurized unit that produces accurate, repeatable feed rates.
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Model 1264i and 1264WL Powder Feeders
The 1264i powder feeder is a major, thoughtful 3year redesign of the world renowned model 1264 feeder. The redesign includes the latest generation electronics, improved ergonomics, and enhanced features that current 1264 feeder users desired to help boost productivity, reduce costs, and improve
consistency. The 1264i includes a sophisticated Operator Interface Terminal (OIT) pendant with touch-screen that can be remotely located, a
Programmable Logic Controller (PLC) for powder feeder control, state-of-the-art electronics, and a removable, 50% larger powder hopper. Features
such as Plasma/HVOF mode selection, total run time, and a resettable run time are accessed from the user-friendly OIT. A set-temperature heater
blanket keeps the powder warm and helps prevent the absorption of moisture. The Model 1264WL version has these same features and includes closed-loop feed rate control.
Increased spray time Importantly, the 1264i incorporates a 50% larger by volume, quickchange hopper. This removable design allows hoppers to be used for storage of excess powder or dedicated for specific powders to prevent crosscontimination. This allows for rapid hopper
replacement for increased uptime when switching between powders.
"Quick-change hopper design allows faster, easier powder changes, better purity control and increased uptime"
The Model 1264i Powder Feeder is a closed-loop pressurized unit specifically designed for Thermal Spray powdersapplications. Based on the proven volumetric-feed
technology, the 1264i is high quality yet economical powder feeder for all powder-based Thermal Spray powdersprocesses. Its proven design has become a standard in
the Thermal Spray powdersindustry and offers unparalleled powder feeding accuracy and repeatability.
" A superior feeder using highly advanced technology and design, backed by over 3 decades of production use "
How it operates The 1264i feeder operates on a volumetric principle that directly controls the powder feedrate by the speed of the powder wheel.During
operation, the slots in the powder wheel fill with powder. Gravity, carrier gas, and rotation of the variable-speed powder wheel deliver the powder to the
powder hose. An inert carrier gas that provides hopper pressurization transports the powder through the hose to the Thermal Spray powdersgun.A user-settable
High/Low RPM warning informs the operator when the wheel RPM is beyond set tolerances. The feeder is not back-pressure sensitive and is rated for pressures
of up to 125 PSI(862 kPa).
Control of powder feedrate by weight The Model 1264WL offers a new level of reliability
and weight-loss control capability. Through rapid
weight-loss over time calculations, the 1264WL
automatically brings the powder feeder to the preprogrammed
powder feedrate and maintains that
feedrate for the duration of the spray run. Closedloop
feedrate control eliminates the apparent
powder density variations and powder flow
characteristics by adjusting the feeder wheel speed
(RPM) to maintain the desired feedrate. The
uncertainties associated with wheel speed feedrate
control are thus eliminated.
Due to the 1264WL's sophisticated PLC control
program, the time to reach the desired feedrate is
minimal. The program uses an algorithm based on
the powder's apparent density to rapidly bring the
feedrate to the desired set-point and
simultaneously, the feeder RPM is adjusted to
maintain the desired set point. The 1264WL allows
the operator to save the set-points and powder
apparent density data in its memory, allowing for
quick powder feeding parameter changes.
The 1264WL has additional features such as usersettable
Low Powder and High/Low Feedrate
warnings which inform the operator when the
hopper is almost empty of powder and out of
feedrate set point respectivly.
The 1264i and 1264WL can function as standalone
units or be incorporated as an integral part of
the sophisticated JP-8000 HP/HVOF and 7700 UPC Plasma and other systems requiring a better,
more accurate powder feeder.
Features
- Removable, high capacity powder hopper
- Variable powder wheel speed
- Different wheels extend / optimize feedable
powder choice
- Touch-screen controller (Remote Mountable)
- PLC control
- High/Low wheel RPM warning
- Powder hopper pressure display
- Powder hopper pressure-relief valve
- Plasma/HVOF mode selector
- Heater blanket with on/off control
- Low powder warning (1264WL only)
- High/Low feedrate warning (1264WL only)
- The 1264i and 1264WL Powder Feeders
meet the stringent CE requirements.
Options
- Model 1264WL Weight-Loss powder feed
control
- Extra hoppers
- Powder Feeder cart
- Multi-hopper storage cart with heater blanket
plug-in
For unparralled closed-loop control of powder
feedrate, either the 1264i or 1264WL are
excellent choices that offer outstanding
reliability, repeatability and accuracy.
Please contact our sales or customer service
representatives to find out more about the 1264i
and 1264WL options.
The information contained herein is offered for
use by technically qualified personnel at their
discretion and risk without warranty of any kind.
Praxair Surface Technologies is constantly
improving its products, and specifications are
subject to change without notice.
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