Kawasaki K3V112DT-1CER High-Pressure Tandem Piston Pump for R210 R210-7 R210LC-7 excavator

Product Overview:
The K3V112DT-1CER 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 robust construction, it provides stepless flow adjustment for demanding mobile applications. With over 25 years of proven field experience, the K3V series is recognized for its high reliability in the global construction machinery market . This unit is a direct, high-quality replacement solution for original Kawasaki equipment, widely used in excavators from Hyundai, Doosan, Kobelco, and other major brands.

Technical Specifications:

• Model: K3V112DT-1CER (Complete model: K3V112DT-1CER-9C32, K3V112DT-1CER-9C32-1B, etc.)

• 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)

• Maximum Self-Priming Speed: 2,200 rpm

• Maximum Speed: Up to 2,700 rpm

• Flow Rate: Up to 302 L/min (total for both pumps at max speed)

• Control Type: Negative flow control (standard for excavator applications)

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

• Mounting Flange: SAE / ISO 3019-1 standard

• Shaft Type: Splined shaft for direct engine coupling

• Port Connection: Side ported with SAE flange ports

• Weight: Approximately 125-145 kg (depending on configuration)

• Material: Robust cast iron construction with hardened steel components

• Temperature Range: -20°C to +95°C

• 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 volumetric efficiency (up to 95%), and long service life in open circuit applications .

• High-Pressure Capability: Delivers 32 MPa rated and 35 MPa peak pressure (approximately 320-350 bar), 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 .

• Negative Flow Control: Standard negative flow control system provides excellent fuel efficiency and smooth operation, making it ideal for excavator applications .

• Through-Shaft Capability: The through-shaft design allows for the connection of additional hydraulic components, such as pilot gear pumps .

• Durability: High-quality materials and stringent quality control processes ensure long service life in demanding continuous operation. Advanced sealing technology prevents internal leakage and minimizes wear and tear .

• Proven Reliability: With more than 25 years of experience in mobile applications, the K3V series offers field-proven performance and high reliability in demanding construction environments .

• Integrated Construction: The pump assembly includes two main variable displacement piston pumps and can be configured with a gear pump for pilot control circuits .

Main Applications (Suitable Equipment):
The K3V112DT-1CER 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):

• Hyundai excavators: R210, R210-7, R210LC-7, R215, R215-7, R220, R225, R225LC-7

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

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

• Volvo excavators: EC210B, EC240B

• Sumitomo excavators: SH210, SH200

• Sany excavators: SY215

• Hitachi excavators: EX200, ZX200, ZX210

• JCM excavators: JCM821, JCM921, JCM922

• Komatsu, Caterpillar, Kato, and other brands

2. Construction Machinery:

• Wheel loaders and backhoe loaders

• Crawler drills and foundation equipment

• Skid steer loaders and material handlers

3. Drilling & Foundation Equipment:

• Rotary drilling rigs 

• Pile drivers and foundation machinery

4. Industrial Applications:

• Industrial hydraulic power units for machinery

• Machine tools and heavy equipment

5. Specialty Applications:

• Marine and offshore hydraulic systems

• Agricultural machinery and harvesters