Kawasaki K3V112DT-1GMR Tandem Variable Displacement Piston Pump for JCB JS200LC Hydraulic Main Pump

Product Overview:
The K3V112DT-1GMR 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, specifically designed for JCB excavators.

Model Code Breakdown:

Technical Specifications:

• Model: K3V112DT-1GMR (Complete: K3V112DT-1GMR-9C79+F)

• 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 - 2,360 rpm

• Maximum Speed: Up to 2,700 rpm

• Flow Rate: Up to 115 L/min per pump (total 230 L/min)

• Maximum Input Torque: 319 Nm

• Maximum Input Power: 70 kW

• Control Type: Negative flow control with total horsepower control (torque summation)

• 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 (Suction: SAE 2500 psi 2½", Delivery: SAE 6000 psi ¾")

• Drain Port: G ¾ - 20

• Pilot Port: G ¼ - 15

• Weight: Approximately 125 kg

• Material: Robust cast iron construction with hardened steel components

• Temperature Range: -20°C to +95°C

• Viscosity Range: 10 - 1000 cSt (working: 10-200 cSt)

• Filtration: Return line filtration 10 micron nominal; suction strainer 80-150 mesh

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. The two pumps share a common suction port but have independent delivery ports .

• 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 .

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

• Total Horsepower Control (Torque Summation): Advanced power control system ensures the total absorbed power from both pumps does not exceed the engine output, preventing engine stalling under heavy loads .

• Excellent Suction Characteristics: Superior self-priming performance (up to 2,200 rpm) ensures reliable operation even in demanding conditions and at higher speeds, minimizing cavitation risks .

• 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 .

Main Applications (Suitable Equipment):
The K3V112DT-1GMR is specifically designed as the specialized tandem power unit for JCB 20-24 ton excavators. It is extensively used in:

1. JCB Excavators (Primary Application):

• JCB JS200LC Hydraulic Main Pump

• JCB JS210LC Hydraulic Main Pump

• JCB JS215LC Hydraulic Main Pump

• JCB JS220LC Hydraulic Main Pump

• JCB JS240LC Hydraulic Main Pump

2. Other Construction Machinery (Compatible Models):

• 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

• Komatsu, Caterpillar, Kato, and other 20-25 ton class excavators

3. Construction Machinery:

• Wheel loaders and backhoe loaders

• Crawler drills and foundation equipment

• Skid steer loaders and material handlers

4. Drilling & Foundation Equipment:

• Rotary drilling rigs

• Pile drivers and foundation machinery

5. Specialty Applications:

• Dump trucks and tipper vehicles

• Concrete pump trucks and mixing equipment

• Marine and offshore hydraulic systems

• Agricultural machinery and harvesters