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Product details
HDD Gear Pump, which is a critical component in Horizontal Directional Drilling (HDD) rigs for powering hydraulic circuits. ⚙️ HDD Gear Pump �� 1. What is an HDD Gear Pump? An HDD Gear Pump is a hydraulic pump that uses the meshing of gears to pump hydraulic fluid through the system. It's used in HDD rigs to drive key hydraulic functions like: Thrust/Pullback Drill head rotation Clamp and vise control Pipe loader arm Mud pump drive These pumps are chosen for their reliability, simplicity, and high-pressure capability. �� 2. Construction Details: Component Material Function Housing Cast iron or aluminum Contains the gear assembly Gears Steel (surface-hardened) Create suction/discharge action Bearings/Bushings Bronze or anti-friction steel Support rotating gears Seals/O-rings Nitrile or Viton Prevent internal & external leakage ⚙️ 3. Working Principle: Two gears (driving and driven) rotate inside the housing. Fluid is drawn into the pump at the inlet, carried around the gear teeth in chambers, and pushed out through the outlet. The tight clearances between components prevent backflow. �� 4. Technical Specifications: Parameter Typical Range Flow Rate 10–150 L/min (2.5–40 GPM) Working Pressure 150–300 bar (2200–4500 psi) Displacement 5–60 cc/rev Speed Range 1000–3500 RPM Temperature Range -20°C to +100°C Mounting SAE flange, European standard (2 or 4-bolt) Drive Keyed shaft or spline ��️ 5. Features & Benefits: High volumetric efficiency Simple and robust design Compact size and easy mounting Suitable for continuous duty cycles Low maintenance compared to piston pumps Handles dirty or abrasive hydraulic oils better than more complex pumps �� 6. Common Applications in HDD Rigs: System Pump Role Drill rotation Powering hydraulic motors for the drill head Pullback/thrust Moving hydraulic cylinders for pushing/pulling rods Clamp/Vise system Opening and closing the pipe holder Mud mixing or pumping (auxiliary) Powering hydraulic-driven mud pumps �� 7. Top Brands & Models: Parker Gear Pumps (PGP series) Eaton/Char-Lynn Casappa (Kappa or Polaris series) �� HDD Track Motor – Overview�� Function: Powers the caterpillar tracks (undercarriage) of an HDD rig. Allows the rig to move across job sites, especially in rough terrain. Usually hydraulically driven, controlled via the machine's onboard system. ⚙️ Components: Hydraulic Motor: Converts hydraulic fluid pressure into mechanical torque. Usually a radial piston or orbital motor for high torque at low speed. Planetary Gearbox: Reduces speed and increases torque output. Designed for heavy-duty use in mobile machinery. Brake System: Often a built-in spring-applied, hydraulically released brake. Prevents movement when the machine is idle or off. Mounting Flange & Sprocket: Connects directly to the track sprocket, enabling motion transfer to tracks. ✅ Key Features: High torque output Compact design for integration into the track frame Sealed and weather-resistant for outdoor use Built for shock loads and heavy-duty cycles �� Applications: Horizontal Directional Drilling Rigs (Vermeer, Ditch Witch, etc.) Pipeline and trenchless installations Other crawler-based construction machinery �� Specifications (typical range): Spec Value Flow Rate 60–200 L/min Max Pressure 300–450 bar Torque 3000–15000 Nm Speed Range 0–50 RPM If you need: A part number cross-reference (for a brand like Vermeer or Ditch Witch) A spare parts diagram Hydraulic circuit showing the track motor's role Or help identifying one from a machine
