Kawasaki K3V112DT Hydraulic Main Pump for Kobelco Hyundai Doosan Sany Excavator

Product Overview:
The K3V112DT is a high-performance swashplate design axial piston tandem (dual) pump from the renowned Kawasaki K3V series. Specifically engineered for open circuit hydraulic systems, this variable displacement double pump delivers exceptional power density, reliable operation, and precise control under extreme loads. With a total displacement of 112 cm³/rev (per pump) and multiple advanced control options, it provides stepless flow adjustment for demanding mobile applications . This HL-K3V112DT model features high efficiency, strong self-priming capability, long service life, and low noise operation . This unit is a direct, high-quality replacement solution for original Kawasaki equipment, compatible with a wide range of excavator models from Hyundai, Doosan, Kobelco, and others .

Technical Specifications:

• Model: K3V112DT (Double Tandem Type)

• Type: Swashplate design, variable axial piston pump (tandem / dual configuration)

• Displacement: 112 cm³/rev (per pump) 

• Rated Pressure: 32 MPa (approximately 320 bar / 4640 psi) 

• Maximum Pressure: 35 MPa (approximately 350 bar / 5075 psi) 

• Peak Pressure Capability: Up to 400 bar depending on configuration 

• Maximum Self-Priming Speed: 2,360 rpm 

• Maximum Speed: 2,700 rpm 

• Control Options: Multiple variable control types including load sensing, pressure cutoff, negative flow control, constant power, etc. 

• Design: For open circuit hydraulic systems with twin pump configuration

• Mounting Flange: SAE / ISO 3019-1 standard

• Port Connection: Side ported with SAE flange ports

• Weight: Approximately 126 kg 

• Material: Robust cast iron construction 

• Temperature Range: -20°C to +95°C

Core Features:

• Tandem / Dual Pump Configuration: Two high-performance pumps in a compact, space-saving tandem arrangement, providing independent hydraulic power for multiple machine functions (e.g., boom, arm, bucket, swing) from a single drive source .

• Robust Swashplate Design: The proven swashplate design with cast iron construction ensures reliable operation, excellent efficiency (volumetric efficiency up to 95%), and long service life in open circuit applications .

• Multiple Advanced Control Options: Wide variety of controls available including load sensing, negative flow control, and constant power control to suit specific excavator system requirements .

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

• High-Pressure Capability: Delivers 32 MPa rated and 35 MPa peak pressure (up to 400 bar peak in some configurations), meeting the most demanding excavator application requirements .

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

• Durability: Robust bearing system and high-quality cast iron materials ensure long service life in demanding continuous operation, with high reliability proven in over 25 years of mobile applications .

• Low Noise Operation: Optimized design ensures low noise levels during operation, meeting stringent workplace noise regulations .

• Integrated Pilot Pump Capability: Can be configured with PTO for mounting additional gear pumps for pilot control circuits.

Main Applications (Suitable Equipment):
The K3V112DT is widely recognized as the specialized tandem power unit for medium-sized excavators and heavy machinery. It is extensively used in:

1. Excavators (20-25 Ton Class - Primary Application):

• Main hydraulic pump for Hyundai excavators: R210, R210-7, R210LC-7, R215, R215-7, R220, R225 

• Main pump for Doosan / Daewoo excavators: DH215, DH220-5, DH220-7, DH225-7, DX225 

• Main pump for Kobelco excavators: SK200-6, SK200-8, SK210, SK210LC, SK220 

• Main pump for Volvo excavators: EC210B, EC240B 

• Main pump for Sumitomo excavators: SH210, SH200 

• Main pump for Sany excavators: SY215 

• Main pump for Hitachi excavators: EX200, ZX200, ZX210 

• Main pump for Komatsu, Kato, JCM (JCM821, JCM921, JCM922) and other brands 

2. Crane & Lifting Equipment:

• Crawler cranes and rough terrain cranes (20-25 ton class)

• Truck-mounted cranes and material handlers

3. Drilling & Foundation Equipment:

• Crawler drills and rotary drilling rigs

• Pile drivers and foundation machinery

4. Construction Machinery:

• Wheel loaders and backhoe loaders

• Crushers and material processors

• Concrete pumps and truck mixers

5. Industrial Applications:

• Industrial hydraulic power units for heavy machinery

• Machine tools and metallurgical equipment

• Plastic machinery and injection molding machines 

6. Mining Machinery:

• Underground mining equipment

• Continuous miners and development drills

7. Specialty Applications:

• Petroleum and mining equipment 

• Marine and offshore hydraulic systems 

• Agricultural machinery and harvesters