SDB Series Tandem Gear Pump | SDB3636R687, SDB3636R254, SDB3636R377 | High Pressure Hydraulic Pump

SDB Series Heavy-Duty Tandem High-Pressure Gear Pumps

Product Overview: The SDB Series represents a premium line of tandem high-pressure gear pumps engineered specifically for heavy-duty construction vehicles and mobile hydraulics. This selection features flagship models including SDB3636R687, SDB3636R254, and SDB3636R377. As the primary power source for dump truck hoists, waste compactor mechanisms, and hydraulic lifting equipment, the SDB series utilizes a rugged cast-iron body and precision axial pressure compensation. This ensures elite volumetric efficiency even under frequent reversal and shock loads. Its tandem design allows a single drive shaft to power two independent circuits, significantly optimizing system space and costs.

Key Technical Advantages:

• Heavy-Duty Durability: Constructed with high-strength cast iron housings for superior fatigue resistance, built to withstand extreme instantaneous pressure ripples found in mining and construction sites.

• Efficient Tandem Output: The SDB3636 architecture supports dual-circuit oil supply, meeting the flow demands of different actuators (such as lift cylinders and auxiliary motors) simultaneously.

• Excellent Self-Priming: Specially designed suction passages ensure rapid self-priming in low-temperature or high-viscosity fluid environments, preventing dry-run damage.

• Long-Life Sealing System: Equipped with imported high-temperature and high-pressure seals to effectively prevent shaft leakage and extend service intervals.

• Precise Fitment Options: Various suffixes (e.g., R687, R254, R377) represent specific flow distributions and mounting interfaces for seamless “Plug-and-Play” replacement.

Detailed Models & Parameters:

• Core Series: SDB Tandem Gear Series.

• Model Keywords: SDB3636R687, SDB3636R254, SDB3636R377.

• Pressure Ratings: Rated at 20 – 25 MPa (2900 – 3625 PSI) continuous.

• Rotation: R (Clockwise / Right-hand rotation).

• Mounting Specs: Heavy-duty standard flange with high-torque splined shaft drive options.

• Target Applications: Dump truck lifting hydraulics, waste compactor power units, mobile truck-mounted cranes, and mining conveyor systems.