Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of bosch rexroth hed8 pressure switch in China. We warmly welcome you to wholesale bulk bosch rexroth hed8 pressure switch for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
▔▔
The Bosch Rexroth HED8 is a heavy-duty, piston-type hydro-electric pressure switch. In simpler terms, it acts as the "brain" that monitors fluid pressure in a hydraulic system and opens or closes an electrical circuit when a specific pressure threshold is reached.
Key Advantages
▔▔
- Exceptional Durability: Built with a rugged mechanical design to withstand millions of pressure cycles.
- Precise Adjustability: Features an easy-to-use adjustment spindle (with an optional lock or scale) to set your exact switching point.
- Versatile Mounting: Available in subplate, pipe, or sandwich plate designs to fit seamlessly into existing hydraulic manifolds.
- Gold-Plated Contacts: Offers excellent electrical conductivity, making it highly reliable even for low-voltage/low-current signal systems.
Technical Specifications
▔▔
| Parameter | Specification |
| Component Series | Series 4X |
| Maximum Operating Pressure | Up to 630 bar (9,137 PSI) |
| Pressure Adjustment Ranges | Up to 50 bar, 100 bar, 200 bar, 350 bar, or 630 bar |
| Fluid Temperature Range | -30°C to +80°C (-22°F to +176°F) |
| Electrical Connection | Large cubic connector (DIN EN 175301-803) or M12x1 plug |
| Switching Frequency | Maximum 100 cycles per minute |
| Hydraulic Fluid Compatibility | Mineral oils, HL, HLP, and flame-resistant fluids |
Applications
▔▔
| Application Field | Specific Use Case | Why HED8 is Used |
| Industrial Presses | Monitoring clamp and execution pressure. | Prevents over-pressurization and ensures safe clamping forces. |
| Machine Tools | Detecting tool clamping/unclamping pressure. | Ensures the tool is locked tight before the spindle spins. |
| Hydraulic Power Units (HPUs) | Accumulator charging control. | Automatically starts or stops a pump to keep fluid pressure steady. |
| Wind Turbines | Brake system pressure monitoring. | Guarantees the mechanical safety brakes have adequate pressure to engage. |
Related Models
▔▔
| Model Code | Mounting Type | Max Pressure Range | Key Feature |
| HED 8 OH-4X/100K14 | Pipe Connection (G1/4") | 100 bar | Standard adjustment spindle |
| HED 8 OH-4X/350K14 | Pipe Connection (G1/4") | 350 bar | High-pressure applications |
| HED 8 OP-4X/200K14 | Subplate Mounting | 200 bar | Ideal for manifold blocks |
| HED 8 OH-4X/350K14S | Pipe Connection | 350 bar | Includes a protective cap & lock |
| HED 8 OP-4X/50K14 | Subplate Mounting | 50 bar | Low-pressure monitoring |
FAQ
▔▔
Q1: Can I adjust the pressure switching point myself?
A: Yes. The HED8 features an adjustment spindle (usually a rotary knob or an internal hex screw). Turning it changes the spring tension, allowing you to set the exact pressure at which the switch activates. Optional models come with a lockable knob to prevent unauthorized changes.
Q2: What is "hysteresis" in the HED8, and can I adjust it?
A: Hysteresis is the difference between the pressure point where the switch turns on and the point where it turns off. In the HED8, this pressure differential is fixed by the mechanical design of the internal microswitch and piston, meaning it cannot be manually adjusted.
Contact Us
▔▔
Request a Quote Today to ensure your hydraulic system performs at its best with genuine components from Yanhui Hydraulic.
Hot Tags: bosch rexroth hed8 pressure switch, China bosch rexroth hed8 pressure switch suppliers, servo valve for adjustment, servo valve for intelligent architecture design, servo valve for wind turbines, servo valve for energy management system ems architecture control, servo valve for feedback control, hydraulic servo valve
