MiniBOOSTER Hydraulic Intensifier HC72-4.0-B-11

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Product Description

The HC72 – 4.0 – B – 11 is a lightweight unit weighing just 2.8 kg/ 6.1 lbs, designed for applications requiring high-pressure maintenance. It raises supplied pressure to a higher outlet pressure while automatically compensating for oil consumption. Featuring a Pressure Reducing Valve (PRV) and an optional orifice, it controls inlet pressure and reduces inlet flow as per the selected intensification ratio. The integrated PRV ensures stable high pressure, safeguarding both the booster and high-pressure tools against excessive pressure, irrespective of tank line pressure fluctuations.

Additional information

Product specification

HC72 versions: 10 different intensification factors.
PIN: 20 – 207 bar.
PH: 2,000 bar maximum.
PRETURN: As low as possible (return pressure to tank).
POUTLET: PH = (PIN – PRETURN) x intensification factor.
Mounting: Inline tube.
Weight: 2.8 kg/ 6.1 lbs.

Model versions

A model = no dump valve.
B model = with dump valve.
G model = direct proportionally controlled.

Material certificate 4.0 on request

Flow Rates

Intensification Factor i	Max.Intensified Outlet flow i/min	Max. Inlet flow i/min
4.0	2.0	14.0
5.0	1.6	14.0
6.6	1.3	13.0
7.6	1.1	13.0
9.0	0.9	13.0
10.3	0.8	12.0
13.0	0.6	12.0
16.0	0.5	12.0
20.0	0.3	12.0
25.0	0.2	12.0

Function description

The basic operation is illustrated in the function diagram. Oil is fed through the directional valve (in the customer system) to the IN port, flowing freely through the PRV (pos. 5) and the internal check valves to the high-pressure side H. When pump pressure is reached on the high-pressure side H, the internal check valves will close. The end pressure will be achieved by the oscillating pump unit OP. 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 OP valve will automatically operate to maintain the end pressure.

Function diagram

Function diagram HC72-4.0-B-11

Dimension

Dimension drawing HC72-4.0-B-11

Connection Types

Connection	IN/R	H1	H2	H3
11	1/4″ BSPP	M22 x 1.5	–	–
12	1/4″ BSPP	M22 x 1.5	9/16-18 UNF	–
13	1/4″ BSPP	M22 x 1.5	9/16-18 UNF	9/16-18 UNF

Ordering an HC72

Ordering example of an HC72 with i = 4.0, H1 M22 x 1.5 and H2 9/16-18 UNF, DV incorporated and BSPP connections: HC72 – 4.0 – B – 11

Attention note!

High-pressure adapter is required, please specify ordering code – see high-pressure adapter table.
High-pressure adapters will be factory mounted.

Valve pre-setting is required, please specify when ordering the intensifier.

The G-model is available in 2 variants, when ordering please specify accordingly:

Dynamic – low hysteresis: Ordering example of an HC72 with i = 4.0 RV incorporated, H1 M22 x 1.5 and H2 9/16-18 UNF and BSPP connections: HC72 – 4.0 – B – 11.
Fail safe – high hysteresis: The RV valve opening ratio is to be determined on individual basis. Contact our technical support.

Ordering example of an HC72 with i = 4.0 RV with opening ratio x.x incorporated, H1 M22 x 1.5 and H2 9/16-18 UNF and BSPP connections: HC72 – 4.0 – B – x.x – 11

Model

HC72

Intensification, i

Select factor
See flow rate table

Model Version.

Select type
A = without DV
B = with DV
G = with proportional valve

Connections

Select thread
See table below

Ordering code	IN/R	H1	H2	H3
HC72-___-__-11	1/4″ BSPP	M22 x 1.5	–	–
HC72-___-__-12	1/4″ BSPP	M22 x 1.5	9/16-18 UNF	–
HC72-___-__-13	1/4″ BSPP	M22 x 1.5	9/16-18 UNF	9/16-18 UNF

Max. tightening torque BSPP

	IN / R
	1/4″ BSPP
with steel washer	4.0 da/Nm
with cutting edge	4.0 da/Nm

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MiniBOOSTER Hydraulic Intensifier HC72-4.0-B-11