4WE / 4WE6 / 4WE6D6X Solenoid Directional Valve – 4WE6D62/EG110N9K4 

1. Basic Product Identity

Model Code Breakdown

2. Core Technical Specifications

• Max operating pressure: 315 bar (31.5 MPa)

• Max flow rate: 80 L/min (DC solenoid)

• Nominal voltage: 110 V DC

• Spool function: 4/3‑way, D‑type (closed center)

• Mounting interface: DIN 24340 Form A / ISO 4401‑03‑02‑0‑05

• Operating temperature: −30 °C to +60 °C

• Fluid compatibility: Mineral oil, phosphate ester fluids (per DIN 51524)

• Response time: ≤ 20 ms

• Body material: Aluminum alloy / cast iron

• Spool material: Steel

• Weight: Approx. 2 kg

3. Key Design Features

Solenoid & Actuation

• Wet‑pin DC solenoid (oil‑immersed) for long service life and stable performance

• Solenoid coil rotatable 90° for flexible installation

• Coil replacement without opening the pressure chamber (minimizes downtime)

• Concealed manual override (N9): Manual spool shifting for emergency or setup use

Valve Body & Flow

• Direct‑acting spool design for fast, precise switching

• Closed‑center (D) spool: All ports blocked in de‑energized state; ideal for load‑holding applications

• Low internal leakage, high repeatability

• Compact, rugged construction for industrial environments

Electrical & Safety

• Single or central electrical connection options

• Complies with CE (Low‑Voltage Directive 2014/35/EU) for voltages > 50 V AC / > 75 V DC

• Optional spool position monitoring available

4. Typical Applications

• Industrial machinery: Machine tools, presses, injection molding

• Mobile equipment: Construction machinery, material handling

• Metallurgy: Rolling mills, continuous casting

• Power generation: Turbine control systems (EH oil)

• Shipbuilding & marine hydraulics

• Chemical & process equipment

5. Advantages

• High reliability & long life (wet‑pin solenoid, robust construction)

• Fast response for precise hydraulic control

• Easy installation & maintenance (rotatable coil, tool‑free coil swap)

• Emergency manual operation for safety and service

• Broad compatibility with standard hydraulic interfaces

• Suitable for high‑pressure, high‑flow industrial circuits

6. Ordering & Identification

• Order number: R900944594 (for 4WE6D62/EG110N9K4)

• Brand: Bosch Rexroth (Germany)

• Series: 4WE6 (6X/62 design)

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