Sun Hydraulic Solenoid coils

Sun Hydraulic Solenoid coils

2 month ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

Full Name: Solenoid coils for Sun Hydraulics cartridge valves from the United States. These are core drive components matching SUN cartridge solenoid valves and proportional valves. They convert electrical energy into magnetic force and mechanical thrust to drive spool shifting, pressure regulation and flow control, widely applied in industrial and mobile hydraulic systems.

1. Operating Principle

1. On/Off Solenoid Coils: A constant magnetic field is generated when energized to directly actuate the armature and valve spool; the spool resets by spring force when de-energized, operating in only two states: open or closed.

2. Proportional Solenoid Coils: Driven by continuously adjustable current from a proportional amplifier, the magnetic field varies linearly with current to precisely control spool opening for stepless adjustment of flow and pressure. Coils of the same specification are interchangeable for both directional and proportional valves.

3. Structural Definition: SUN separates the coil winding and solenoid tube assembly as independent replaceable components for easy maintenance.

2. Main Series & Model Interpretation

2.1 Series 770 (Classic General-Purpose, Highest Market Demand)

- Power rating: Standard 12W / 22W

- Common models:

- 770-224: 24VDC, 22W, general industrial coil

- 770-524: 24VDC with built-in TVS surge suppression diode, SAE terminal, IP65 protection

- 770-212: 12VDC, low-voltage type for construction machinery

- Compatible valves: DTDA, DBAA, DAAA and other standard cartridge solenoid valves

2.2 Series 740 (FLeX New Generation Energy-Saving Series)

- Power rating: 17W (low power), 25W (standard high power), 30W (explosion-proof for hazardous environments)

- Voltage options: 12/24/28VDC, 115/230VAC; compatible with DIN and Deutsch waterproof connectors

- Advantages: Zinc-nickel plated housing with 1000-hour salt spray corrosion resistance, 10 million-cycle service life, compatible with XMD proportional drive modules

2.3 Series 760 (Explosion-Proof & Special Environment Series)

- Designed for chemical, oilfield and other hazardous locations with international explosion-proof certifications

- Adopts ISO/DIN 43650 square terminals, compatible with the full range of SUN cartridge valves

3. Key Technical Specifications

1. Operating Voltage

- DC: 12V, 24V, 28V (most common)

- AC: 115V, 230V, 50/60Hz

2. Insulation Class: Class N magnet wire, maximum operating temperature 200℃

3. Protection Class: Standard IP65, dustproof and waterproof for outdoor and heavy-duty mobile applications

4. Installation Feature: Magnetically symmetrical design, mountable in either direction without performance impact for flexible wiring

5. Surge Protection: Optional built-in TVS diode to suppress reverse electromotive force and protect electronic controls

6. Housing Material: Galvanized steel / zinc-nickel alloy, anti-corrosion and high vibration resistance

4. Terminal Types

1. SAE J858A Blade Terminals: Standard for Series 770, American industrial specification

2. DIN 43650 Square Connectors: Common European industrial standard

3. Deutsch Waterproof Connectors: For construction and mobile machinery with high shock and moisture resistance

5. Typical Applications

- Industrial Hydraulics: Injection molding machines, machine tools, hydraulic power units, automated production lines

- Mobile Hydraulics: Excavators, cranes, aerial work platforms, agricultural machinery

- Special Environments: Explosion-proof hydraulic systems for oilfields, chemical plants and mining equipment

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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