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950md mill-duty housing – AMETEK 1986XPJ Explosion Proof Resolver User Manual

Page 15

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1080 N. Crooks Road • Clawson, MI 48017 • 800.635.0289 • 248.435.0700 • Fax 248.435.8120 • www.ametekapt.com

AUTOMATION & PROCESS

TECHNOLOGIES

950MD

Applications

The 950MD was originally designed for use in steel

mill applications but has proven to be reliable in many

applications where ruggedness, environmental protection

and ease of mounting are required. Some of these

applications include:

Steel Mills

-

Tundish car (Tundish height), turret

height (Caster), hydraulic coil cars, torch cutoff machine

(torchhead monitoring), furnace tilt, electrode positioning,

side guide positioning, ladle slide gate positioning, louver

or roof position, etc.

Foundries, Forging and Casting

– Linear transducers

with 950MD housings have been used on sand mold

compactors, furnace or oven doors and material transfer

systems.

Injection Molding and Die Casting

– Proven effective

in monitoring/controlling the position of the clamp and/

or shot cylinder. The two point connection of the 950MD

housing allows for a simple retrofit by replacing limit

switches with an LDT for position feedback over the

entire range movement. Linear potentiometers can also

be replaced, thus eliminating their problems with drift,

temperature, and short life span.

Hydraulic Servo Applications

- Ideal for installing

parallel to hydraulic cylinders including new applications

and retrofits. The major advantage to using the 950MD

housing versus gun drilling the cylinder for an LDT is that

the cylinder fluid flow is not compromised. If an LDT fails

within a cylinder it cannot be removed without having to

deal with the hydraulic fluid lines, pressure etc. Some

cylinders may be difficult to remove once installed, thus

inhibiting the removal of the LDT. The 950MD housing is

typically mounted parallel to the cylinder, the same as a

slave cylinder would be, so removal is greatly simplified

under these conditions.

Lock and Dam Sites

- Miter gate and Tainter valve

position feedback systems have both benefited from the

950MD and LDT combination.

Gate Position Feedback

- For hydro-electric plants,

water control structures, water and wastewater treatment

and managing, wickett gate position feedback for Turbine

speed control.

Optional Items

The standard Mill-Duty Housing includes the complete

housing assembly with provisions to accept an LDT

and all bolts, nuts and mounting hardware required for

a complete installation. There are also several optional

items available.

Vortex Air Cooler

- The standard 950MD is equipped

with air purge ports. In many cases, running clean shop

air through the head is sufficient to cool the electronics.

For severe temperature applications a Vortex Air Cooler

may be desired. A Vortex Air Cooler accepts standard

shop air (80 - 100 PSIG). The air is ejected through a

generator in a Vortex spin chamber where the air stream

revolves in a tube at up to 1,000,000 RPM. In simplest

terms the inner stream gives off energy in the form of

heat to the outer stream and the inner stream exits the

opposite end as hot air. The Vortex Cooler is capable of

generating air flows as cold as -40° F.

Protective Boots

- To give added protection to the

actuator rod, protective boots are available. These

boots attach between the end of the Mill-Duty guide tube

and the end of the actuator rod assembly. The boots

are offered in neoprene coated nylon for most standard

applications. They offer -60° F to 250° F operating range

with resistance to water and oil. Also, silicone coated

fiberglass offers high temperature resistance from -100°

F to 550° F; Teflon-coated fiberglass offers -100° F to

500° F operating range with a high degree of corrosion

resistance and optional stainless steel boots for rugged

applications.

Water-Cooled Head Assemblies

- In applications where

extreme temperatures are present and air cooling is not

appropriate, water-cooled head assemblies are available.

Cooling jackets within the head assembly allow water to

flow around the electronics.

Front and Rear Mount Spherical Rod Ends

- In

applications where two spherical rod ends are required,

rear mount spherical rod ends are available. The 3/4”

rear rod end attaches to a threaded bolt extending from

the rear of the head. The 3/4” front rod end is threaded

into the piston rod. An optional stainless steel version is

available. Mounting bolts are supplied with both versions.

Delrin Liner

- Used in longer horizontal applications,

typically 60” or longer to prevent wear on the LDT’s

guide tube as the 950MD housing is stroked. The Delrin

liner is installed inside of the 950MD barrel and prevents

sag of the LDT’s guide tube.

950MD Mill-Duty Housing