K-KE-KS

• Passenger lift
• Fork lift
• Car and motorcycle lift
• Lift table
• Dumper
• Tail gate
• Scissor lift
• Gangway and davits for boats
• Material handling
• Foods machinery

Choose the circuit which meets your application requirements.

Take note of all dimensions resulting from the basic components chosen for your application.

Note

dimensions may vary slightly and should be confirmed by DCOC, if the assembly is to be installed in a space with narrow clearance.

The tank capacity and the tank dimensions need to be large enough to assure proper pump suction: there must always be a reserve of oil in the tank when all cylinders are fully extended and avoid overflow when cylinders are fully retracted.

The tank must be evaluated also for best separation of air from oil, and for settling down oil contamination. It should be placed in a space with, at least, natural ventilation and it should permit enough heat dissipation to prevent high fluid temperature.

Select the electric motor by evaluating the power needed and the motor compliance with the heat developed during the expected run time (or “duty cycle”).

Mineral oil based hydraulic fluids suitable for hydraulic systems can be used; they should have physical lubricating and chemical properties as specified by:

MINERAL OIL BASED HYDRAULIC FLUIDS HL

(DIN 51524 part 1)

MINERAL OIL BASED HYDRAULIC FLUIDS HL P

(DIN 51524 part 2)

For use of environmentally friendly fluids please consult DCOC.

The fluid viscosity should remain within the range 10 to 300 cSt (centistokes); recommended 15 to 120 cSt.

Permissive cold start viscosity is maximum 2000 cSt.

The fluid temperature should remain within the range -15°C and 80°C (5°F and 176°F).

NOTE

For compact power module with plastic tank the fluid temperature should remain within the range -15°C and 70°C (5°F and 158°F). Ambient temperature -15°C +40°C (5°F and 104°F).

We recommend a cleanliness of the operating fluid according to ISO 4406 Class 20/18/15 or cleaner. All components of the hydraulic circuit , including hoses and actuators, must be flushed and cleaned before assembling, because the compact power module has a suction filter only.

The hydraulic fluid should be replaced after the first 50 hours, and then every 1000 hours, or, at least, once a year.

The mounting position (is basically un-restricted; just avoid installations that could compromise the pump suction, it is recommended to support the power module on vibration dampening blocks when the mounting structure is expected to vibrate.

The wiring between battery and electric motor should be selected in order to avoid excessive voltage drop (recommended less than 1 V).

It is strictly forbidden to allow the backwards rotation of the pump even at the first starting: to prevent reverse rotation, the wiring polarities must be correctly connected (except for the reversible pumps).

NOTE

Caution: when energized, the surface temperature of the electric motor could reach temperature levels of 60-80°C (140-176°F): care should be taken to avoid any accidental contact of people with the motor surface.

The tolerances on the nominal voltage are:

Single phase motor: 230V +/-5% -

Three phase motor: 230-400V +/-10%.

Protection degree : IP54 (protection against dust and water splash).

Insulation class: F (155°C) (311°F).

All motors are aluminum alloy die cast without painting.

NOTE

Standard Single phase motors have a permanently connected run capacitor. If the motor starts with pressure in the circuit (load in the actuator) we suggest the use of specials dedicated manifolds KE series with integrated Start-Up valve (Manifold code M09 and M19).

DCOC has a wide range of D.C. motors. In the following pages you will find a selection of our standard range. For further information about our complete range please contact our Sales department.

All the motors shown have clockwise rotation suitable for driving our counter clockwise gear pumps.

For each motor a diagram is shown that enables the customer to select the right pump displacement needed for the required flow and working pressure.

To be sure of selecting the best electric motor for the application, also the duty cycle has to be verified.

Following are the definitions of the type of duty cycles:

S2 = Short time duty cycle: indicate the number of minutes the motor can operate before reaching the maximum allowable temperature. After this time the motor must cool down until the ambient temperature is reached.

S3 = Intermittent duty cycle: indicate the maximum time percentage (%) based on 10 minute period within the motor can run until reaching the maximum allowable temperature. For example an S3 value of 15% = 1,5 minutes running time every 10 minutes period. For 8,5 minutes the motor is switched-off.

The S2 and S3 values are related to the current draw. On the label of motor are indicated the S2 and S3 values referred to the nominal power of the motor.

To check the S2 or S3 value at different conditions is necessary to find the value of current in the motor-pumps diagram and related it with the represented list.

All the diagrams motor-pumps are obtained at the nominal voltage of 12 or 24 Volt using fluid ISO VG 46 at 20-30°C (68-86°F).

All the Central Manifolds shown in the catalogue are made in die cast aluminium alloy except the manifold code 10 for CPM MR series that is made by extruded bar. The validation of the Central Manifolds follows a life-test with 250 bar (625 psi) pulsed pressure repeated for 300.000 cycles.

A wide range of cartridge valves and special plugs is available to be assembled in our Central Manifolds. The cartridge valves shown are designed for use in our Compact Power Module and are manufactured using steel with high mechanical strength. Surface treatments protect the exposed parts to the external environment. Standard seals are NBR (BUNA-N) with backup rings in PTFE. The cartridge valves with “leak proof seat design” have an average leakage of 10-15 drops/minute (< 1 cm³/minute 0.06 in³/min.) at the maximum pressure using fluid ISO VG46 at 40°C (104°F). The validation of the cartridge valves follows a life-test at pulsed maximum pressure (indicated for each valve) repeated for 500.000 cycles.

All the solenoid cartridge valves are fitted with protective O-Rings installed between the pole tube and the coil. These O-Rings protect the internal parts from condensation and contaminants , which could cause malfunction.

All the solenoid cartridge valves are designed for operating in D.C.

Power supply in A.C. requires a connector with bridge rectifier included.

DCOC offers a wide range of External Gear Pumps to cover different kinds of applications. The standard versions are suitable for the biggest part of applications. For applications requiring higher peaks of pressure (for example Car Lift and Presses) a version with cast iron covers is available. For applications requiring high numbers of Start&Stop or low noise feature the tapered shaft version for elastic coupling is preferred (available only for central manifold K series with A.C. motors). All the pumps are pressure compensated to guarantee the best efficiency.

In this catalogue you will find a wide selection of steel and plastic tanks available as a standard product. If a special tank is required please contact our Sales Department. Steel tanks have Black paint finish and are suitable for operating temperature range -15°C / +80°C (5°F / 176°F). Plastic tanks are obtained in one piece in order to avoid welded parts that are weak points at extreme temperature and vibrations. Plastic tanks are suitable for operating temperature range -15°C / +70°C (5°F / 158°F).

NOTE

even if the plastic tank mounting system is designed to avoid oil leakage the tank must be securely anchored when fitted in mobile equipment and when subject to shocks and heavy vibrations. Please check that the anchorages do not stress or deform the tank.

Our modular system offers a wide range of standardised elements. They are divided in two main series:

Modular Elements “N” series: Modular blocks for different mounting position with mechanical valve or interface for CETOP valves to create parallel or series circuits. Modular Elements “V” series: Modular blocks that incorporate solenoid operated cartridge valves 2,3,4 way. All the Modular Elements are made in extruded aluminum alloy. In the catalogue you will find a selection of the main used models.

NOTE

To reduce the complexity of the system and optimize the available space, special Modular Elements can be designed and manufactured following the customers needs. In this case please contact our Sales Department.

According to the Machine Directive 2006/42/CE, a complete power module, as described in paragraph 15 and made available to the European market, enters into the definition of “partly completed machinery”.

Instead, the power module sub-assemblies (motor, pump, reservoir, central manifold,...), when not assembled into a complete power pack, are considered “components” which can be employed in a “machinery” or a “partly completed machinery”. In this case, the DCOC components and sub-assemblies must be fitted in compliance with all the relevant technical data sheet applicable to the product, and shall not be operated, adjusted or disassembled before the complete machinery where they are incorporated has been declared to be in compliance with the Machine Directive 2006/42/CE.

NOTE

All the components shown in the catalogue ARE NOT suitable for use in potentially explosive atmosphere.

Below you will find the most common equations used in hydraulics:

DC motors up to 3000 W.

AC motors up to 4000 W (5, 5 hp).

Pump displacement up to 7,9 cm3 (0,31 inch3).

Pressure up to 300 bar (4350 psi).

Optionals:

Start-up valve inside.

3-ways solenoid operated valve inside.

4-ways solenoid operated valve inside.

AC electric motor with direct coupling for smaller dimensions.

Gear pumps with splined shaft.

Low noise pumps.

DC motors up to 3000 W.

AC motors up to 4000 W (5,5 hp).

Pump displacement up to 7,9 cm3 (0,31 inch3).

Pressure up to 300 bar (4350 psi).

Optionals:

Elastic coupling.

Ready solution for simple acting circuits with the possibility of unloading valve.

DC motors up to 3000 W.

AC motors up to 4000 W (5,5 hp).

Pump displacement up to 7,9 cm3 (0,31 inch3).

Pressure up to 300 bar (4350 psi).

NOTE

that every power module type can be mounted in horizontal or vertical position.

Current Motors 230/400V 50Hz IP54 (1450 rpm at 50Hz)

On request motors in B34 form are avaible. In this cases, please put “B34” after the code of the motor when filling in the description. Example “408MB34”.

Current Motors 230V 50Hz Form B14 Protection IP54 (1450 rpm at 50Hz)

NOTE

The electric motors with standard flange shown in this pages are delivered by different certified suppliers. This means the indicated dimensions could change a little, depending on which manufacturer will be assembled. On the CPM the choice of the manufacturer is based on our stock availability.

NOTE

The flanges shown in this page have the same dimensions as per the flanges used for standard couplings. The elastic couplings are suggested for applications requiring low noise and applications with high frequency of START/STOP operations.

NOTE

The motors shown in these tables are a selection of our range. In case of needs of different technical characteristics PLEASE CONTACT OUR SALES DEPARTEMENT. The electric motors with compact mounting style shown in this pages are delivered by different certified suppliers. This means the indicated dimensions could change a little, depending on which manufacturer will be assembled. On the CPM the choice of the manufacturer is based on our stock availability.

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay Standard Performance

Junction Elements for manifolds KE and KS series

NOTE

Suitable for KE and KS only.

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay Standard Performance (Pict. 1)

Starting Relay High Performance (silver plate contact) (Pict. 2)

Kit for assembly plastic protection

Junction Elements for manifolds

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay Standard Performance (Pict. 1)

Starting Relay High Performance (silver plate contact) (Pict. 2)

Junction Elements for manifolds

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay Standard Performance (Pict. 1)

Junction Elements for manifolds KE and KS series

NOTE

Suitable for KE and KS only.

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay Standard Performance (Pict. 1)

Starting Relay High Performance (silver plate contact) (Pict. 2)

Junction Elements for manifolds

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay High Performance (silver plate contact)

Junction Elements for manifolds KE and KS series

Junction Elements for manifolds K series

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay High Performance (silver plate contact)

Junction Elements for manifolds KE and KS series

NOTE

The values of the curves may change slightly depending on the brand / model of pump that is mounted.

Starting Relay High Performance (silver plate contact)

Junction Elements for manifolds KE and KS series

NOTE

Steel tank is not available for central manifold KS type. Please contact our sales department for further information.

NOTE

Steel tank is not available for central manifold KS type. Please contact our sales department for further information.

This is a standard 2 way pilot operated valves poppet style.

• Only for D.C. current.
• Internal leakage: see technical data.
• Minimum operating voltage: 90% of nominal.
• Screen on P 300 Micron.
• Screw Type Emergency on EE.

NOTE: For more info see Data Sheet RE18323-25

This is a standard 2 way pilot operated valves poppet style.

• Only for D.C. current.
• Internal leakage: see technical data.
• Minimum operating voltage: 90% of nominal.
• Screen on P 300 Micron.
• Push Type Emergency on EAM.

NOTE: For more info see Data Sheet RE18323-25

On this valve the oil can pass free or can be perfectly locked on each ports “P” and “A”.

• Only for D.C. current.
• Internal leakage: see technical data.
• Minimum operating voltage: 90% of nominal.
• Push Type Emergency on DTE push..

NOTE: For more info see Data Sheet RE18324-02 V3D-DT Series

3 Way Direct Acting Poppet Style Solenoid Valves

• Only for D.C. current.
• Internal leakage: see technical data.
• Minimum operating voltage: 90% of nominal.
• Push Type Emergency.

4 Way 2 Position Solenoid Valves, Spool Type

• Only for D.C. current.
• Minimum operating voltage: 90% of nominal.
• Push Type Emergency.

4 Way 3 Position Solenoid Valves, Spool Type

• Only for D.C. current.
• Minimum operating voltage: 90% of nominal.
• Push Type Emergency (only function coil B).

NOTE

For more info see Data Sheet RE18324-64

Weight: 0.18 kg (0.40 lbs)

Power: 20 W

Heat insulation Class H: 180°C (356°F)

Ambient temperature range: -30/+90°C (-22/+194°F)

Further performance limits in terms of temperature and voltage fluctuations: please refer to data sheet of the solenoid valve where D36 coil is mounted.

NOTE

* OU and AH versions especially designed in cases of AC supply voltage (respectively for 110AC and 220 AC) to be used in conjunction with connector with circuit including wave rectifier. Ambient temperature range for OU and AH versions: -30°C / + 75°C

NOTE

For more info see Data Sheet RE18325-90

Weight: 0.24 kg (0.53 lbs)

Heat insulation Class H: 180°C (356°F)

Ambient temperature range: -40/+110°C (-40/+230°F)

Inlet voltage fluctuations must not exceed ±15% of nominal voltage to obtain correct operation and long life coils.

Coils are not equipped with suppression diode. Coating to DIN 50962 - Fe // ZnNi with thick film passivation.

(Salt spray test to DIN 50021 720 h)

NOTE

For more info see Data Sheet RE18325-90

Coil protection: Polyamide resin with fiber glass for Heat insulation class F (155°C) (311°F).

Solenoids “S4-CEI” (18 W) are designed for continuos duty ED100%.

Ambient temperature range: -15°/+40°

Inlet voltage fluctuations must not exceed +/- 10% of nominal voltage to obtain correct operations and long life coils Protection degree: see tables below

NOTES

Diode with capacity max 1 Amp.

Black is the standard colour. Grey is used in case of valves with 2 coils (V4DS-3P and V4D-CEI-3P Series).

Technical Data

2 Way Manual Operated Cartridge Valve

Code

Microswitch

Diagram

Compatibility

Type with lever

Material Number with lever

MC

without

K - KE

V389280B20LV190

R932003809

MC17

with

V389280C20LV190

R932003811

Technical Data

2 Way Manual Operated Cartridge Valve

Code

Diagram

Compatibility

Type with lever

Material Number with lever

MCR

K - KE

V389281020LV095

R932003816

Technical Data

Hand pump (1.5cc)

Code

Diagram

Type with lever

Material Number with lever

PMC12

K01V388540LV190

R932009298

Code

Diagram

 

Type

Material Number

ST6CP-PR

K - KE

V389534A00

R932003917

Technical Data

NOTE

All pumps have anti-clockwise rotation.

NOTE

*Note

The assembly of the gear pumps with tapered shaft are only possible in the manifolds K series with the following junction elements:

• Motor size IEC71: junction element code F82
• Motor size IEC80: junction element code F24
• Motor size IEC90: junction element code F25
• Motor size IEC100-112: junction element code F26

NOTE

All pumps have anti-clockwise rotation.

For this tanks is necessary to use the O-RING Ø112x3 code: C000191000 R-Number: R932000190

For this tanks is necessary to use the O-RING Ø112x3 code: C000191000 R-Number: R932000190

Please make sure the tank and motor are mounted correctly

*NOTE

In order to avoid to support the weight of motor by the collar of the tank when the tanks with fi xing brakets are used, it is strongly suggested to support also the central manifold.

*NOTE

In order to avoid to support the weight of motor by the collar of the tank when the tanks with fi xing brakets are used, it is strongly suggested to support also the central manifold.

Code

Tank capacity l (USgal)

Useable capacity l (USgal)

Type

Material Number

Drawing

S184*

15 (3,96)

13 (3,43)

K01K3976SE214

R932001996

S189*

15 (3,96)

13 (3,43)

K01K3976SE219

R932001998

*NOTE

In order to avoid to support the weight of motor by the collar of the tank when the tanks with fixing brakets are used, it is strongly suggested to support also the central manifold.

These modular blocks have been designed to have the ability to be assembled as a stack to allow clearence between flanges and motors of different sizes and types. Each block includes 2 OR 3056 gaskets.

Motor IEC71 frame Coupling TR02

Motor IEC80 frame Coupling TR03

Motor IEC90 frame Coupling TR04

Motor IEC100 frame Coupling TR05

Motor IEC112 frame Coupling TR05

Space Modular Block to fix a compact mounting style electric motor on power module KE type.

This block includes 2 OR 3056 gaskets.

A modular block that is able to have a 90° rotation from our standard OILSISTEM configuration, but keeping the block on the same surface allowing a different position of any other modular block.

Each block includes 2 OR 2056 gaskets.

A modular block that is able to turn the standard assembling of 90°, in order to place other manifold blocks over the motor.

The “N15” block has a 1/4” BSPP port for Pressure Gauge.

Each block includes 2 OR 2056 gaskets.

Motor IEC71 frame Coupling TR02

Motor IEC80 frame Coupling TR03

Motor IEC90 frame Coupling TR04

Motor IEC100 frame Coupling TR05

Motor IEC112 frame Coupling TR05

A modular block that is able to turn the standard assembling of 90°, in order to place other blocks over the tank.

The blocks have a 1/4” BSPP port for Pressure Gauge. Each block includes 2 OR 2056 gaskets.

Modular blocks with exit 3/8” BSPP.

Each block includes 2 OR 2056 gaskets.

A modular block with an extra port.

Each block includes 2 OR 2056 gaskets.

A modular block with 4 extra ports.

Each block includes 2 OR 2056 gaskets.

A modular block with a filter on the pressure line. This is recommended for applications where valve may be subjected to contamination.

Each block includes 2 OR 2056 gaskets.

A modular block with filter on return line. This is recommended for applications where valves may be subjected to contamination.

Each block includes 2 OR 2056 gaskets.

Bypass valve set at a pressure of 1 bar.

Modular blocks for CETOP 3 (2143) electrovalves for parallel or series circuits.

Each block includes 2 OR 2056 gaskets.

A modular block that is for CETOP 3 (2143) electrovalves for a parallel circuit with ports on the oppsite side of the valve.

Each block includes 2 OR 2056 gaskets.