Minibooster HC2D2

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HC2D2: 8 different intensification factors

  • PIN: 20 - 207 bar (inlet pressure)
  • PH: 800 bar maximum (outlet pressure)
  • PRETURN: As low as possible (Return pressure to tank)
  • POUTLET: PH = (PIN - PReturn) i (Intensification)
    The intensification ratio is related to the inlet pressure at media 2, the values in the table are measured at 1 bar on media 2

More details

Download Data Sheet Minibooster HC2D2

Minibooster HC2D2

  • Drain connections: Max. 5 bar
  • Mounting: Inline tube

A Model = Without Dump Valves

Description:

The HC2D2 is a dual media unit which is capable of delivering up to 3 l/min flow on the high-pressure end. Like other miniBOOSTER models, the HC2D2 raises supplied pressure to a higher outlet pressure and automatically compensates for consumption of oil to maintain the high pressure.

Adjustment of the outlet pressure is carried out by varying the supplied pressure. Relative to its flow capability, the HC2D2 is a compact unit weighing 4.15 kg.

General Functions:

The basic operation is illustrated in the function diagram. Media 1 is fed through the IN port flowing freely through the bistable valve BV1 driving the LP pistons. From the suction inlet IN Media 2 is drawn through the check valves 2 x KV1, and pumped through the 2 x KV2 to the high-pressure side H. In this condition, maximum flow through the booster is achieved giving a fast-forward function.

The unit will automatically stall when end pressure on the high-pressure side H is reached. If a pressure drop on the high-pressure side exists due to consumption or leakage, the HP1 and HP2 units will automatically operate to maintain the end pressure.

HC2D2 Function Diagram


Domestic and export sales enquiries are welcome from end users, original equipment machinery manufacturers and trade suppliers from all industrial sectors.
If you can’t find what you are looking for, need product pricing, delivery, technical support or associated services CONTACT HYQUIP or call our sales office +44 (0)1204 699959

PART NUMBER INTENSIFICATION FACTOR DUMP VALVE CONNECTION PRICE inc. VAT PRICE exc. VAT ADD TO MY PARTS LIST
HC2D2 - 1.2 - A - 1HH HC2D212A1HH 1.2 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 1.6 - A - 1HH HC2D216A1HH 1.6 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 2.2 - A - 1HH HC2D222A1HH 2.2 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 3.0 - A - 1HH HC2D230A1HH 3.0 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 4.0 - A - 1HH HC2D240A1HH 4.0 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 5.6 - A - 1HH HC2D256A1HH 5.6 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 8.0 - A - 1HH HC2D280A1HH 8.0 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 12.0 - A - 1HH HC2D2120A1HH 12.0 A 1HH £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 1.2 - A - 1HE HC2D212A1HE 1.2 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 1.6 - A - 1HE HC2D216A1HE 1.6 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 2.2 - A - 1HE HC2D222A1HE 2.2 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 3.0 - A - 1HE HC2D230A1HE 3.0 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 4.0 - A - 1HE HC2D240A1HE 4.0 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 5.6 - A - 1HE HC2D256A1HE 5.6 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 8.0 - A - 1HE HC2D280A1HE 8.0 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 12.0 - A - 1HE HC2D2120A1HE 12.0 A 1HE £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 1.2 - A - 1HP HC2D212A1HP 1.2 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 1.6 - A - 1HP HC2D216A1HP 1.6 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 2.2 - A - 1HP HC2D222A1HP 2.2 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 3.0 - A - 1HP HC2D230A1HP 3.0 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 4.0 - A - 1HP HC2D240A1HP 4.0 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 5.6 - A - 1HP HC2D256A1HP 5.6 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 8.0 - A - 1HP HC2D280A1HP 8.0 A 1HP £ 2,012.46 £ 1,677.05 ADD
HC2D2 - 12.0 - A - 1HP HC2D2120A1HP 12.0 A 1HP £ 2,012.46 £ 1,677.05 ADD

HC2D2 Function Diagram

Fluids:

Media 1: Recognised hydraulic fluids, glycol solutions (Min > 5%)

Media 2: Hydraulic fluids, glycol

Please note! For other media, such as methanol, please contact HYQUIP

Materials:

  • Body, cast iron, internal components, steel: External surface, zinc chromate finish
  • Dynamic seals, H-pur (other seal systems available)

Ordering a Minibooster HC2D2

Ordering example of an HC2D2 with i = 4.0, with BSPP connections: HC2D2 – 4.0 - A – 1HH

Model

Intensification, i

Dump valve

Connections

HC2D2


your selection...


your selection...


your selection...

see flow rate table

A = (no) / A model

1

Dynamic Seals for Duel Boosters:

Dynamic Seals for Duel Boosters

Minibooster HC2D2 Connection Types

Minibooster HC2D2 Flow Rates

General Minibooster Specifications

  • High flow - low pressure
  • Low flow - high pressure

flow pressure curve diagram

As shown in the chart Minibooster has a dual flow/pressure feature. Initially when fluid is supplied to the booster it flows straight through to the high pressure side. At this point all the supplied flow (up to the max. allowed inlet flow) goes to the actuator allowing it to operate fast in the desired direction. As soon as inlet pressure is reached in the actuator, the flow will then be supplied via the high pressure piston until intensified pressure is reached.

Temperature range oil: -40 °C to +120 °C

Temperature range water: +3 °C to +50 °C

Temperature limits:

  • +30 °C to +60 °C = Best performance - long life-time
  • Outside above range = Reduced performance and/or life-time

Maximum inlet flow: See performance data for each model

Inlet pressure: Min. 20 bar (290 psi), max. 200 bar (2900 psi)

Note: Outlet pressure must never exceed 800 bar (11600 psi ), except for the HC7, HC8 + HC9

Filtration: 10 micron nominal; max. 19/16 according to ISO 4406

 

0 to 140 bar
0 to 2000 psi

141 to 200 bar
2000 to 3000 psi

> 200 bar 
> 3000 psi 

ISO target
levels

Micron
ratings 

ISO target
levels

Micron
ratings 

ISO target
levels

Micron
ratings

Media

Oil

> 5 cSt

19/17/14

10

18/16/13

5

17/15/12

3

Water

< 5 cSt

18/16/13

5

17/15/12

3

16/14/11

3

Water Glycol

< 5 cSt

18/16/13

5

17/15/12

3

16/14/11

3

Connections: See data for each model.


Advantages summarised:

  • Gives high pressure whenever needed
  • Expensive high-pressure pumps not required
  • Expense saved on tubing
  • Increase expensive high pressure by simply increasing inexpensive low pressure
  • Low pressure is changed into high pressure with hardly any use of energy or heat generation
  • Leakages on the high-pressure side compensated dynamically
  • System works with labyrinthine tubing, which gives a longer life
  • No rotating parts
  • Light weight
  • Small size – high performance

Typical clamping circuit

0-103 Model - Example with single-acting cylinder

Typical clamping circuit

The HC2 is used to boost the pressure in an existing hydraulic circuit, e.g. in a machining centre to ensure a sufficient clamping force. As the HC2 can be directly fitted into the workholding system, high-pressure connections can be avoided.

Applications with larger flowrates

0-104 Model - Example with external pilot-operated check valve

Applications with larger flowrates

In applications where the pump supplies a flow exceeding the maximum permissible supplied flow to the HC2, the HC2 is installed in parallel with a pilot-operated check valve. This check valve is dimensioned to allow for all the flow supplied from the pump. The inlet flow to the HC2 is limited to the maximum permissible flow for the particular intensification ratio.

As the cylinder moves forward, all the flow from the pump is used. When the pump pressure is established in the cylinder the check valve closes, and the end pressure builds up through the HC2. The cylinder is retracted by changing the position of the directional valve, whereby the pump is connected to the other side of the cylinder and the DV opens, allowing the fluid to return to the tank.

Fluids:

  • Recognised hydraulic and transmission fluids compatible with Buna-N seals
  • Viscosity 1 to 500 cSt (mm2/s)
  • Water glycol mix (minimum 5% Glycol)
  • Other media on request
  • For other fluids, contact technical sales

Viscosity limits:

  • 20-40 cSt (mm2/s) = Best performance - long life-time
  • 16-19 and 40-100 cSt (mm2/s) = Good performance - good life-time
  • 12-15 and 101-300 cSt (mm2/s) = Reduced performance and life-time
  • 1-11 and 301-500 cSt (mm2/s) = Short performance and life-time

Materials:

  • Oil boosters: Body: cast iron, internal components: steel, external surface: zinc chromate finish
  • Stainless boosters: Body and internal components: stainless steel 316 W.1.4404
  • Static seals: nitrile - other material on request, e.g. Viton, EPDM
  • Dynamic seals: see table below

Dynamic seals for dual media boosters:

Material code

Description

HH

H-PUR (Polyurethan) material for both media 1 and media 2.

Standard seals for up to 800 bar. These seals are applicable for most medias, e.g. mineral oil and seawater

HE

H-PUR (Polyurethan) material for media 1 and EPDM material for media 2.

Seals for e.g media 1 mineral oil and media 2 Skydrol (EPDM swells up if exposed to mineral oil)

HP

H-PUR (Polyurethan) material for media 1 and PEEK material for media 2.

Seals for applications with pressure higher than 800 bar and/or extremely aggressive media 2

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