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AUXILIARY HYDRAULIC KITS for
EXCAVATORS & BACKHOES

HYDRAULIC KITS FOR EXCAVATORS FEATURES

SINCE 1996 You need a kit rated for severe-duty that will hold up to the harshest
job-site conditions and applications.
HydrauliCircuit Technology, Inc. (HCT) is your #1 source for custom
built, high-quality and durable hydraulic kits that are easy to install. HCT kits are the toughest in the industry!
With our strong engineering capabilities, we design and produce
kits to reliably operate nearly any combination of attachments on TUBING
virtually all excavators and backhoes. Heavy walled, custom fabricated and pressure
tested tubing with Pulse MIG welded ends
Case Construction Vendor Direct Program recognizes ensure long life. Tubing has heavier wall
HCT Kits as an authorized vendor. thickness than most competitors and OEMs.

Ordering your preferred HCT Hydraulic Kits will help CLAMPS
add to your yearly Commitment Equity Program. Heavy duty, steel clamps are custom designed
to match our tubing and ensure a tight fit.
Most kit designs are based on These are tougher than most clamps used on
actual in-house installations your carrier.
performed at our 35,000 sq. ft.
research, manufacturing, and CONNECTION
installation facility, so they fit Our kits use manufacturer approved SAE
properly and perform optimally. ORFS or Code 62 Flange weld ends that match
the host machine. Our designs meet and
HCT program offers a large selection of excavator kits to usually exceed the SAE specifications.
meet your machinery and customer needs.
• Single Acting, Double Acting, & Multifunction kits
• Secondary circuits (Rotation/Tilt )
• Upgrade and Conversion kits
• Monitor control to select/set:

Flow - Pressure -Oil Direction - Two-Pump Flow

Excavator Kits designed for: • Tubes, hoses, and brackets are identified with labels
• D series (current production) • Most kits are bolt-on, requiring minimal to no welding. Design
• C, B, and older series (out-of-production)
• Trade-in’s (all makes & models) provides low profile mounting and fast installation times, with
factory look
www.hctkits.com • Hoses are protected with spring guard and hose wrap
• Large inventory of components for shorter lead time
• Specialized valve designs to meet your application needs

888.603.0080

BOOM / STICK VALVE COMPARTMENT

HCT tubes connect directly to the hose assembly and do not require FUNCTION SELECT - selecting between “single acting” or “double
a male-to-male union to achieve this. acting” attachments (Multi Function Kits). Choose manual or electric
• OEM style ORFS or CD62 4-bolt Flange connections (optional monitor control)
• Higher safety standards

• Efficient designs with fewer connections

HCT connections minimize the chance for leaks. Our method
eliminates over 50% of the O-ring connections on the stick
and boom lines, when compared to other hydraulic kit suppliers.

Tube assemblies are pre-bent for proper fit, and powder coated for
durability. Tubing and bolt-on clamps stand up to harsh environments.

BOLT-ON Shown above: Optional Monitor Function Control

TWO-PUMP FLOW (non-priority) - through OEM spare valve on
machine (optional monitor control)

PRIORITY FLOW - priority flow dividers in pump lines
(for brush cutters, pile drivers, magnets)

ROTATE SYSTEM - priority flow divider for reliable oil supply,
directional valve for attachment control

Includes high pressure ball valves with positive lock. Shown above:
Heavy bracket / Flange & ORFS fittings / Hose protection
“Thumb Tee’s” use a second set
of ball valves that enables hoses (all standard)
to stay connected and lock the
888.603.0080
thumb in place.
(Includes manual flow control valve)

www.hctkits.com

ADD ON KITS: Accumulator packages, Breaker Autolube,
Case Drain Filter, Front Window Guard,
HCT kit configuration can be as basic or advanced as Universal Pattern Changer
desired. Most kits can also be upgraded at a later
time. Second Function Rotate Kits are available as
upgrade to factory installed primary kits.

OIL FLOW PRESSURE VALVE RELIEF ACTUATION OPTIONS
DIRECTION

KIT TYPES

Typical Single Acting / 1-Way
Configurations Double Acting / 2-Way
Flow Direction Change Valve
Call for custom applications Manually Adjusted
OEM Monitor Control
High
Medium
OEM Spare Valve
HCT Add On valve
Inline HCT Relief Valve
OEM Port Relief (qty 2)
Foot switch
Joystick (momentary)
Proportional Joystick OR Foot Pedal
Filter
Thumb Tee

BREAKER / COMPACTOR af
THUMB / TILT
SHEAR / AUGER / GRAPPLE b
BREAKER - THUMB (DUAL PURPOSE)
BREAKER - SHEAR (DUAL PURPOSE) a
ROTATION (Secondary Circuit)
ROTARY BRUSHCUTTER / MOWER a

= Included in Kit ac
= Required for Application
= Optional d
= Upgrade
e

a - For attachment requiring less than 1 pump flow
b - Knob style flow control valve
c - For Breaker Circuit
d - Newer CAT and Komatsu machines need OEM 2nd service valve
e - Maintained function: Click ON - Click OFF
f - Foot Pedal only

www.hctkits.com 888.603.0080

KIT CONTROL OPTIONS INSTRUCTIONS / PACKAGING

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Tube [2] Hose [204]
SVhaultv-Oe f[f16B]all
Tube [3] Clamp [24]

Clamp [23]

Tube [1] 6 Figure 2: Boom Tube [3] (Left Side)
Clamp [20]

Figure 1: Stick Tubing – Left Side

5 M12x1.75x75H Bolt
M12SW

M12x1.75x45H Bolt 24
M12SW

Kits can integrate seamlessly with factory joystick and onboard 24
OEM Monitor for Flow setting, Function Select, and 2-pump flow.
Additional pressure select options are available. 250 Fluid Drive Detail G This is the property of HydrauliCircuit Technology, Inc
McDonough and shall not be altered, copied, used for manufacturing
GA 30253 or duplicated by any other person or company without
Fax: 770-474-6165
our written permission.

Not Drawn to Scale

Units: Milimeters Dwg No: CX-000490 Date: 10/28/2014 Drawing By: LM Approved By: BMB

JOYSTICKS • Installation manuals come with detailed instructions that include
Super tough, lightweight joystick handgrip photos, CAD drawings and step-by-step instructions.
replaces your existing handgrip. Light touch
HORIZONTAL VERTICAL buttons reduce operator fatigue. Non-pro- • Item numbers on drawings correlate with the Bill of Materials and
STANDARD OPTION portional and Proportional Joystick controls labels on primary components (e,g, tubes, hoses, brackets) for
are available for right and left side. accurate part identification during installation and replacement.

SINGLE CRATE

PEDAL VALVES • Heavy duty crate
ensures the product
This valve bolts right into the existing holes reaches you
in many excavator cab floors. It is extremely safely and securely.
durable, and features a mechanical safety
lock that converts it to a foot rest when not • Foam sleeve and tie
in use. downs are used to
protect the powder
PILOT VALVES coated tubes during
shipment.
Narrow profile manifold for ease in
installation. SAE ports. Durable High UPPER SECTION LOWER SECTION
Wattage coils for longevity.
• Most kits ship in one crate to minimize chance of lost or damaged
www.hctkits.com packages during shipment. This prevents missing boxes prior to
install, saving valuable time and reducing additional charges.

888.603.0080

HYDRAULIC KITS FOR BACKHOES HCT CONTACT INFO

SINCE 1996 EMAIL:
HCT BACKHOE KITS are available for current & out of production [email protected]
models. They are built machine specific to meet your application [email protected]
needs. [email protected]

Kits are customized to fit Standard-stick or Extend-a-hoe stick PHONE/FAX:
MAIN: 888.603.0080
KIT SELECTION PH: 770.474.2657
SINGLE ACTING KITS: Operate Breakers, Compactors, and
other single direction attachments. FX: 770.474.6165
* Choose between: Standard or Low Backpressure design
DOUBLE ACTING KITS: Operate Tilts,Thumbs, Augers, Grapples, WEBSITE:
Shears, and other attachments www.hctkits.com
* Choose between: Medium or high pressure & flow design www.hctkits.com/quote
• Kits include add-on control valves to match application
USEFUL FORMULAS
requirements.
• Kits terminate with Flat-Face Quick disconnects. Attachment Convert from Into Multiply by

side Q. D. set also included. Gallons (U.S.) Liters 3.7854
• Actuated with an electric single or double rocker footswitch Liters 0.2642
• Kits come with intuitive step by step instructions for trouble PSI Gallons (U.S.) 0.07031
Kg/Cm2 14.223
free installation PSI Kg/Cm2 0.06895
BARS 14.5038
www.hctkits.com Inches PSI 25.4
Millimeters 0.03937
Ft/lbs (Torque) BARS 0.13826
Kg/meter (Torque) 7.233
PSI

Millimeters

Inches

Kg/meter

Ft/lbs

Temperature Conversions

ºF = (9/5 ºC) + 32

ºC = 5/9 (ºF-32)

888.603.0080

HCT

KITS

YOUR NEXT BEST CHOICE
TO FACTORY KITS

• CUSTOMIZABLE KITS
• EXTREME DURABILITY
• GREATER RELIABILITY
• FASTER INSTALLATIONS
• MAXIMIZE YOUR ROI

Choice | Flexibility | Reliability
Best In Class

888.603.0080 • [email protected]
www.hctkits.com