Electric Over Hydraulic Actuators in both linear and rotary designs, custom engineered to move your equipment

1. The Kerry Company
Manufacturing Unique
Linear and Rotary
Actuators to keep you
moving

2. Our Story
 The KERRY ACTUATOR is a unique concept
designed to join together the advantages of
conventional electrical rams (compactness and easy
installation) and the advantages of hydraulics
(smooth linear motion, adjustability, safety, and
reliability).
 It incorporates, in one compact component, an
electric motor (any type), a hydraulic pump enclosed
in a sealed reservoir, flow, pressure and functional
control valves, and a double acting heavy duty
hydraulic cylinder or rotary actuator.

3. TECHNOLOGICAL FEATURES
 1. Single unit self-powered construction:
The whole hydraulic circuit (electric motor, pump, flow and pressure
controls and cylinder) is contained in a single assembly which
eliminates expensive engineering, installation, start-up and
maintenance costs. Operating costs are also reduced since the unit
motor operates only when rod motion is required.
 2. Modular stacked construction:
The design of most Kerry Actuators is such that all modular control
components are assembled directly to the pump.
 3. Sealed hydraulic circuit:
The entire unit is sealed from the atmosphere. The design of our
reservoir allows for changing hydraulic fluid volume on extension and
retraction of the cylinder rod and for temperature changes. This
important feature eliminates the entry of dirt and moisture into the
system and renders a long maintenance free unit service life.

4. TECHNOLOGICAL FEATURES
 4. Internal feeds to the cylinder:
In the B, E, K, and M series units, the fluid feed to both the rod and piston sides of the cylinder
are effected internally, eliminating potential leakage points. In the JB, JE, JK, JM, Q, S (special)
and KR series units there are one or two external fluid feed lines to the rod and piston sides of
the cylinder, depending upon whether the unit is built with an in-line or laterally mounted power
unit.
 5. Electrical Control:
An important feature of the Kerry Actuator design is the reverse rotation of the pumping unit. The
obvious advantages are:
5.1 - There is no need for a directional control valve with its associated actuating solenoids. A
simple electrical reversing motor starter allows for "3 wire" control of the actuator, eliminating
expensive electrical engineering, relays, switches and numerous cables.
 5.2 - The electric motor is normally stopped after each stroke. When the motor is signaled to
stop, the cylinder rod is immediately and automatically locked in position by hydraulic locking
valves. This can take place at any position in the unit stroke in both directions.
 5.3 - With the Kerry Actuator system there is an obvious electrical power savings and a decrease
in component wear as compared with a standard typical hydraulic system where the electric
motor is continuously running, generating heat and wear in the system.

5. TECHNOLOGICAL FEATURES
 6. Eliminate the need for hydraulic expertise by the user:
This new concept of self-contained electro-hydraulic actuator allows the
potential user to select from a standard range of Kerry Actuators without the
necessity of complex calculations for power, oil flow, pressure, etc. The only
requirements for selecting the correct Kerry Actuator would be to know the
force, speed, stroke or
rotation mounting and motor construction required.
 7. Optional Accessories:
• Mounting Fixtures: Trunion, Flange, Foot, Base, or Eye to Eye
• Adjustable Limit Switches
• Position Indication: Potentiometer or Transducer
• Rod Ends: Threaded, Male or Female Clevis, Plain or Spherical Eye
• Alarm Warning System: High Temperature, High Pressure, Low Pressure,
etc.
• Explosion Proof, Dirty Duty or Submersible Electrical Construction
• Fail Safe Construction
• Stainless Steel Rod
• Manual Override Options
• Steel Rod Cover

6. Markets Served
 Steel
 Power Generation
 Mining
 Nuclear Power
 Utilities & Related Industries

7. Steel Applications
Hot Mill Areas
 Heat Retention Hoods
 Width Gauge & X-Ray
 Transverse Slab and
Cobble Push-Offs
 Reheat Furnace Doors &
Dampers
 Primary Water Valves
 Cooling Valves
 Entry Guides
 Side Guides
Q - Series actuators on heat retention hoods

8. Steel Applications
Boiler House - Utilities - Misc.
 Bottom Ash Gates
 Stack Cap Valve
Operators
 Damper Operators
 Scrubber Valve
Operations
 Lance Manipulators
 Roll Lathe Tail Stock
Traverse
M - Series actuator on stack caps

9. Steel Applications
Coke Plant
 Smoke Seals
 Charge Car Gates
 Wharf Gates
 Barge Unloaders
 Larry Car
 Coal Handling Gates
 Coke Bin Gates
 Door Machines
Series M-48 on coke pusher
machine smoke seal

10. Steel Applications
Blast Furnace Area
•Hot Blast Valves
•Skip Hoist Gates
•Iron & Additive Bin Gates
•Equalizer & Relief Valves
•Mixer Valves
•Blow-Off Valves
•Gas Safety Shut - Off Valves
•Back Draft Valves
•Chimney Valves
•Movable Throat Armor
•Venturi Scrubbers
E - Series actuator on blast furnace equalizer
and relief valves

11. Steel
Cold Mills - Galvanizing and
Pickling Lines
 Steering Rolls
 Billy Rolls
 Tensioning Rolls
 Bride Roll Units
 Conveyor Traverse
 X-Ray & Width Gauge
Traverse
 Low Boy Roll Units
 Shear Positioning
 Side Trimmer Positioning
 Pelletizing Skids Transfer
Cars
 Electrostatic Spray Header
Series JE-12 on galvanizing line steering roll

12. Power Generation Applications
 Scrubber Controls
 Conveyor Tensioners
 Fan Damper Controls
 Ash Slurry Valves
 Coal Samplers
 Steam Control Valves
 Trash Rakes
 Flop Gates Series E - Operating Stacker Tube
 Hydro-Bin Slide Gates Flop Gates
 Diverter Gates
 Undercut Gates
 Bottom Ash Gates
 Plows
Series JM with Manual Pump on
Scrubber Exit Damper

13. Power Generation Applications
Series JB Proportional Drive on
Boiler Fuel Control Series KRQ Rotary Proportional
Drive on
Scrubber Damper

14. Mining Applications
 Conveyor Tensioners
 Fan Damper Controls
 Coal Samplers
 Hoist Brakes-Fail Safe
 Flop Gates
 Dryer Gates
 Refuse Bin Gates
 Diverter Gates
 Load-out Gates
 Mass Flow Gates
 Undercut Gates
 Plows
 Valves Series JE-36 on Slide Gate

15. Mining Applications
Series Q-36 High Speed Unit Series Q-36 on Flop Gate
on Coal Sampler

16. Nuclear Applications
 Steam Control Valves
 Dampers
Series JE-4-FS Linear Actuator
Series KR90-FS Rotary
modulating and fail-safe
Actuator, modulating and fail-
to replace ITT Barton Unit.
safe
for use on an air damper.

17. Nuclear Applications
Series JE-6 linear actuator Series JE6-FS linear actuator,
modulating, fail-in-place, with modulating, spring fail-safe, with
built-in manual pump over-ride on a built-in manual pump over-ride on a
steam control valve steam control valve.

18. Utilities Applications
 Lock Valving Operators
 Sewage Plant Valving /Slide
Gates
 Water Plant Valving /Slide Gates
 Damper Operators
 Taintor Gates
 Penstock Valves
 Cone Jet Valve Operators
 Lock Mitre Gates
 Flood Control Slide Gates
 Coal Handling Gates
 Trash Rakes
 Turbine By-Pass Valves
 Wicket Gates
 Steam Valve Operators
Kerry Actuator Operating Dam Gate

19. Utilities Applications
Kerry Actuator Operating Lock Gate
Kerry Actuator Operating Sewage Plant
Sluice Gate

20. Contact Us
 Kerry Company Inc
 3003 Wildwood-Sample Road
 PO Box 51 Allison Park, PA 15101
 412-486-3388 412-486-7449
 Represented in Ontario by
 RGW Sales Canada
 Phone 905-296-2039 Cell 289-339-3644
 www.rgwsalescanada.com