Shop MiniBooster HC4-G Hydraulic Intensifiers with Direct Proportional Control
The miniBOOSTER HC4-G hydraulic intensifier, also called a hydraulic pressure booster, is a compact, high-flow inline unit with direct proportional RV pressure control. The RV valve allows high-pressure output to be controlled proportionally from the low-pressure inlet side. HC4-G boosters are available in two variants: the standard G Dynamic model, which offers low hysteresis and fast response for applications such as hydraulic braking, and the G-__ Fail-Safe model, which uses higher hysteresis to keep high pressure stable until inlet pressure falls below approximately 50% of normal working pressure. The fail-safe version is suited to offshore safety circuits and other systems requiring controlled pressure retention and release without trapped high pressure. The HC4 family offers 11 intensification ratios from 1.3:1 to 9.8:1, inlet pressures from 20 to 207 bar (290 to 3,000 psi), outlet pressures up to 800 bar (11,600 psi), and intensified flow up to 17.4 L/min (4.6 GPM), depending on the selected ratio.
The HC4-G delivers proportionally controlled, higher-flow hydraulic pressure without requiring a separate high-pressure pump or control circuit. Applications include hydraulic braking, precision clamping and workholding, presses, large cylinders, testing equipment, industrial automation and offshore safety systems. Warning: The Dynamic G model requires stable inlet pressure and a supply line with a minimum inside diameter of 5 mm. Unstable inlet pressure, undersized lines, excessive return backpressure or an incorrectly selected RV opening ratio can cause unreliable pressure control. The fail-safe G-__ variant must be specified for the application, with its RV opening ratio determined using qualified technical guidance. Never assume the high-pressure side has been relieved; verify zero pressure before service. All hoses, fittings, valves, gauges, seals, manifolds and actuators must be rated for the maximum possible intensified pressure, and installation must be performed by qualified hydraulic personnel.
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Hydraulic Intensifier Boosters without Dump Valve
15 different intensification factors
290-3000psi
11,600psi
As low as possible (return pressure to tank)
PH = (PIN – PRETURN) x intensification factor
Inline Tube
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Shop MiniBooster HC4-G Hydraulic Intensifiers with Direct Proportional Control
Click on the model number in the chart below to view that item. Options show below are most common and readily available.
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| Product SKU ▼ | Pilot Ratio ▼ | Max Inlet Flow ▼ | Max Outlet Flow ▼ | Inlet Pressure ▼ | Outlet Pressure ▼ | Inlet Port ▼ | Outlet Port ▼ | Lead Time ▼ | Price ▼ |
|---|---|---|---|---|---|---|---|---|---|
| HC4-1.5-G-1 | 1.5 | 10.6 | 4.2 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-1.8-G-1 | 1.8 | 10.6 | 3.8 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-2.1-G-1 | 2.1 | 10.6 | 3.4 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-2.6-G-1 | 2.6 | 10.6 | 2.9 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-2.8-G-1 | 2.8 | 10.6 | 2.8 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-3.2-G-1 | 3.2 | 10.6 | 2.5 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-4.3-G-1 | 4.3 | 10.6 | 2.0 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-5.1-G-1 | 5.1 | 10.6 | 1.7 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-6.3-G-1 | 6.3 | 10.6 | 1.4 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
| HC4-9.8-G-1 | 9.8 | 10.6 | 1.0 | 3000 | 11600 | 3/8" BSPP | 1/2" BSPP | 4-6 Weeks | $1,265.99 |
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Technical Specs
