K3V112 Hydraulic Main Pump for Kobelco SK200-6E SK210-8 Hyundai R210LC-7 Doosan DX225 Excavator

Product Overview:
The K3V112 is a high-performance swashplate design axial piston pump from the renowned Kawasaki K3V series. Specifically engineered for open circuit hydraulic systems, this variable pump delivers exceptional power density, reliable operation, and precise control under extreme loads . With a displacement of 112 cm³/rev and multiple advanced control options, it provides stepless flow adjustment for demanding mobile and industrial applications. This pump features high power density, excellent suction capability, and more than 25 years of proven field experience in mobile applications . This unit is a direct, high-quality replacement solution for original Kawasaki equipment.

Technical Specifications:

• Model: K3V112

• Type: Swashplate design, variable axial piston pump

• Displacement: 112 cm³/rev (117 cm³/rev depending on configuration) 

• Rated Pressure: 34.3 MPa (approximately 350 bar / 5000 psi) 

• Peak Pressure: 39.2 MPa (approximately 400 bar / 5700 psi) 

• Maximum Self-Priming Speed: 2,360 rpm 

• Maximum Speed: 2,700 rpm 

• Flow Rate: 53.4 GPM at 1800 rpm 

• Control Options: Load sensing, pressure cutoff, torque limiting, negative flow control, constant power, electronic displacement control 

• Design: For open circuit hydraulic systems

• Structure Options: Single pump, tandem pump (DT), parallel type 

• Mounting Flange: SAE D 4-bolt / ISO 3019-1 standard 

• Port Connection: Side ported with SAE flange ports 

• Weight: Approximately 86-126 kg (single pump) 

• Material: Robust cast iron construction

• Temperature Range: -20°C to +95°C 

Core Features:

• Robust Swashplate Design: The proven swashplate design with cast iron construction ensures reliable operation, excellent efficiency, and long service life in open circuit applications .

• High Power Density: Delivers exceptional power within compact dimensions, providing excellent power-to-weight ratio for space-constrained machinery .

• High Suction Capability: Superior self-priming performance ensures reliable operation even in demanding conditions and at higher speeds, minimizing cavitation risks .

• Multiple Advanced Control Options: Wide variety of controls available including load sensing, pressure cutoff, torque limiting, negative flow control, constant power, and electronic displacement control to suit specific application needs .

• Stepless Variable Displacement: Output flow is infinitely variable between maximum and zero, offering precise flow matching to reduce energy consumption and heat generation.

• Tandem Configuration Available: Can be supplied as DT (tandem type) double pump with PTO for mounting additional gear pumps for pilot control circuits .

• High-Pressure Capability: Delivers 34.3 MPa rated pressure and 39.2 MPa peak pressure, meeting the most demanding mobile application requirements .

• Durability: High reliability with more than 25 years of experience in mobile applications . Robust bearing system ensures long service life in demanding continuous operation.

• Wide Range of Sizes: Finely graduated sizes from 63cc to 280cc allow precise adaptation to specific application requirements .

Main Applications (Suitable Equipment):
The K3V112 is widely recognized as the specialized power unit for heavy machinery requiring high-pressure, variable flow hydraulics. It is extensively used in:

1. Excavators (Primary Application):

• Main hydraulic pump for medium excavators (15-25 ton class) 

• Kobelco excavators SK200-8, SK250-8, SK260LC-8 

• Hyundai excavators 215/220/225 

• Doosan / Daewoo excavators 215/220/225 

• Kato, Sumitomo, Komatsu, Hitachi excavators 

2. Crane & Lifting Equipment:

• Crawler cranes and rough terrain cranes 

• Mobile cranes and truck-mounted cranes

3. Drilling & Foundation Equipment:

• Crawler drills and pile drivers 

• Rotary drilling rigs

4. Construction Machinery:

• Wheel loaders and backhoe loaders 

• Crushers and material processors 

• Concrete pumps and truck mixers 

5. Industrial Machinery:

• Industrial hydraulic power units

• Machine tools and heavy industrial equipment

6. Marine Applications:

• Marine hydraulic systems and deck machinery 

• Ships and offshore equipment 

7. Specialty Applications:

• Mining machinery and tunneling equipment

• Agricultural machinery and harvesters

• Material handling equipment