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HYDAC "CA" Series compact power units are highly efficient in both performance and size. The units are specially constructed with oil-immersed pump-motor assemblies. In addition, modular valve packages are available to suit your needs.

These short-term or intermittent duty-rated units offer practical solutions for a wide variety of unique applications.

Short term/Intermittent duty.
Unit of Measure

Model Code/Ordering Information

Series

 N/A CA8R

Filling Volume for 0.9 to 1.75 hp Motor (05 Code)

 N/A 1.09 gal

Filling Volume for 0.9 to 1.75 hp Motor (07 Code)

 N/A 1.76 gal

Filling Volume for 0.9 to 1.75 hp Motor (09 Code)

 N/A 2.34 gal

Filling Volume for 2.15 to 4.80 hp Motor (07 Code)

 N/A 1.63 gal

Filling Volume for 2.15 to 4.80 hp Motor (09 Code)

 N/A 2.23 gal

Usable Volume for 0.9 to 1.75 hp Motor (05 Code)

 N/A 0.78 gal

Usable Volume for 0.9 to 1.75 hp Motor (07 Code)

 N/A 1.40 gal

Usable Volume for 0.9 to 1.75 hp Motor (09 Code)

 N/A 1.87 gal

Usable Volume for 2.15 to 4.80 hp Motor (07 Code)

 N/A 1.17 gal

Usable Volume for 2.15 to 4.80 hp Motor (09 Code)

 N/A 1.63 gal

Note for Filling Volume and Usable Volume

 N/A Tank 05 is not available with the 2.15, 2.40, 2.95, 3.50, or the 4.80 HP motors.

Pumps

 N/A With 1-Phase AC Motor With 3-Phase AC Motor

Dual Voltage Motor

 N/A 40 - 3 Phase 220-240 V/440-480 V 60 Hz 85 - 1 Phase 110-115 V/220-230 V 60 Hz

Breather

 N/A 1 - BF4 -10 micron Omit - Standard

Thermal Switch

 N/A Omit - None TS - 175 ºF Set Point

Flange Type

 N/A 10 - Standard - Horizontal Mounting Flange. 12 - Vertical Mounting Flange. 20 - Flange for use with "L" series manifolds. Horizontal mounting only.

Design Code

 N/A Determined at factory
Start Up Condition1 N/A Omit - Use when control circuit allows pump to start under no load. P - Unit includes internal valve to allow pump to start under load.

General Specifications/Engineering Data

Construction

 N/A Balanced gear pump driven by oil-immersed AC motor, deep-drawn steel tank, aluminum flange

Pressure

 N/A Up to 3045 psi210 bar

Flow Rate

 N/A 0.41 to 3.9 gpm1.5 to 14.7 L/min

Mounting Type

 N/A Four threaded mounting holes (3/8" - 16) on unit's flange

Weight at 0.90 hp Motor

 N/A 26.5 lb

Weight at 1.75 to 2.40 hp Motor

 N/A 29 to 32 lb

Weight at 3.50 to 4.80 hp Motor

 N/A 34 to 42 lb

Note for Weight

 N/A Specified weights apply to dry units with no control valves.

Ambient Temperature

 N/A -4 to 104 ºF-20 to 40 ºC

Mounting Position

 N/A Horizontal Vertical

Fluid Specifications

Operating Fluid

 N/A Antiwear type industrial hydraulic oils

Minimum Viscosity Range

 N/A 50 SSU

Maximum Viscosity Range

 N/A 1800 SSU

Optimum Viscosity Range

 N/A 60 to 400 SSU

Maximum Permissable Contamination Filtration

 N/A International Organization for Standardization (ISO) 19/16

Oil Temperature

 N/A -4 to 176 ºF-20 to 80 ºC

Electrical Specifications

Motor Voltage

 N/A 220 to 240 V440 to 480 V

Motor Phase

 N/A 3

Motor Frequency

 N/A 60 Hz

Motor Connection Type

 N/A Terminal strip in terminal box

Motor Terminal Box

 N/A DIN 40050-IP54

Motor Rotation

 N/A Clockwise rotation only

Thermal Switch Actuating Temperature

 N/A 175 ºF80 ºC

Thermal Switch Switchback Hysterisis

 N/A 20 to 50 ºF

Maximum Thermal Switch Alternating Current (AC) Voltage

 N/A 250 V

Maximum Thermal Switch Direct Current (DC) Voltage

 N/A 60 V

Thermal Switch Contact

 N/A Normally closed

Thermal Switch Connection

 N/A In terminal box

Note for Electrical Specifications

 N/A Single phase motors can not be started under load. In control circuits where loading can not be avoided, it must be clearly stated when ordering. Please see Model Code page for details on ordering this feature.

Duty Ratings

S2 - Short Term Operation

 N/A The unit operates for a short period of time, reaching its maximum thermal limit. During time at rest, the unit is allowed time to cool to ambient temperature. This type of operation is usually random, not cyclical.

S2= approximately 5 minutes at full load.

S3 - Intermittent Operation

 N/A The unit operates in a continuous cycle of run time and idle time. During time at rest, it is not allowed to cool to ambient temperature. However, the unit has cooled sufficiently to allow for the next load cycle without exceeding the thermal limit.

S3= approximately 10% on-time per total cycle.

Model Code Example

Pressure Range

 N/A 100 V - Up to 1500 PSI 250 V - Up to 3000 PSI

Pre-Set Relieving Pressure

 N/A Omit - Valve will be set to maximum pressure capability of the pump/motor combination selected. (State cracking pressure in PSI.)

Electrical Options Selection Table

Direct Current (DC) Voltage at G12-Z4 Code

 N/A 12 V

Direct Current (DC) Voltage at G12L Code

 N/A 12 V

Direct Current (DC) Voltage at G24-Z4 Code

 N/A 24 V

Direct Current (DC) Voltage at G24L Code

 N/A 24 V

Alternating Current (AC) Voltage at W110-Z4 Code

 N/A 110 V

Alternating Current (AC) Voltage at W230-Z4 Code

 N/A 230 V

Connection Type at G12-Z4 Code

 N/A 3-Pin DIN43650-AF2P611

Connection Type at G12L Code

 N/A 4 inch Flying Leads

Connection Type at G24-Z4 Code

 N/A 3-Pin DIN43650-AF2P611

Connection Type at G24L Code

 N/A 4 inch Flying Leads

Connection Type at W110-Z4 Code

 N/A 3-Pin DIN43650-AF2P611

Connection Type at W230-Z4 Code

 N/A 3-Pin DIN43650-AF2P611

Modular Construction Allows for a Wide Selection of Control Options

Control Type GA

 N/A Inline module with an integral pressure relief valve and check valve. The unit has SAE O-ring ports for use with a basic hydraulic circuit when control valves will not be mounted on the power unit.

Control Type SW5

 N/A Base module with relief valve, check valve and 2 position / 2-way solenoid valve. This module can be used with a single acting cylinder in lifting/lowering and load holding circuits.

Control Type CAE

 N/A Base module with integral relief and check valve. Provides a single station mounting surface for an NFPA D03 directional valve.

Control Type CAL

 N/A Provides up to 6 station mounting of NFPA D03 valves. Basic module has a system relief valve, 2-position / 2-way solenoid dump valve and a check valve. The number of stations must be specified, along with an end module for capping the system.

Detailed on the following page are modules that are used along with base type "CAL" to build up to a 6 station D03 manifold.

D03 Module - CAM

 N/A Detailed on this page are the modules that are used along with base type "CAL" to build up to a 6 station D03 manifold.

For use with base module type "CAL". The "CAM" modules are the stackable units that fit between the base module and the end plate. Each one accepts a single NFPA D03 valve.

End Module - EL

 N/A For use with the base module type "CAL". One end module is used as shown on the model code example on the previous page. The purpose of this module is to cap the stack of CAM stations. The entire stack is then fixed to the base module using tie rods.

Control Type L

 N/A Control Type "L" is a modular stacking valve system that offers a variety of cartridge valve control modules that are stacked together to build a working hydraulic circuit. The valve stack is assembled with two tie rods.

Up to 20 modules may be tied together to provide a nearly unlimited amount of unique solutions for simple or complex applications.

Valve modules include a wide variety of pressure and directional control featuring 100% continuous duty-rated coils and leak-free performance. This system is ideal for clamping and load holding applications.

Control type "L" is detailed in HYDAC Catalog #HHD-L.03/98. A model code selected there can be added to the end of the power unit model code to specify a complete system.

Special

Special

 N/A Customized control packages can be designed and then flange mounted to the hydraulic power unit to meet customer specific needs.

As seen in this catalog, several control options are available. These are designed to handle the most common hydraulic circuits and are produced and supplied as standard components.

Special designs are implemented in situations where our standard module offering does not meet the application needs. Particularly when low cost / high volume requirements are involved; or, when physical size, weight, and appearance are factors.

Please contact your distributor sales representative or HYDAC directly for assistance with Special Controls.

Features

N/A Compact
Pump and motor are internal to the tank. Unit can be portable or installed as an integral part of a new design or existing machine.

Low Noise
Pump and motor are oil-immersed, dampening vibration and noise.

Complete Package
Modular design of controls allows for simple or complex circuit solutions all from one source.

Seamless Reservoir
Deep-drawn steel tank is rugged and minimizes potential leaks.

Pressure Balanced Gear Pump
Allows up to 30% higher volumetric efficiency than non-balanced pump, greatly reducing wear and noise.

Global Service and Availability
HYDAC is an international company with world-wide resources available to service your needs.

Function

Function

 N/A An electric oil-immersed motor drives a pressure balanced gear pump. Motors with output ranges of .9 to 4.8 HP and speeds of 1800 and 3600 RPM are used This results in an offering of many combinations that can be adapted to Specific applications.

The pressure and direction of the operating fluid’s flow is controlled by an extensive range of modular cartridge valves and/or spool-type directional valves. Standard control blocks and modular stacking valve systems are available. For control tasks which can not be carried out using standard controls, customer specific solutions are found.

CA Series power units are rated for short term (S2) or intermittent (S3) duty. These ratings are detailed in this brochure. A thermoswitch is available to protect the unit from possible excess heat.

Additional assistance with selection and application of all HYDAC products is available by contacting your local distributor or regional HYDAC sales manager

Applications

Applications

 N/A
  • Machine Tool Clamping
  • Small Presses
  • Dock Levelers
  • Scissor Lifts
  • Man Lifts
  • Auto Lifts
  • Braking Systems
  • Steel Handling
  • Wheel Chair Lifts
  • Food Industry
  • Hose Crimpers
  • Compactors
  • Hospital Beds
  • Dentist Chairs
  • 1 This option is necessary for single phase units only. Flow must be 1.5 GPM or above to add this option.