National 1320 UE Drawworks 2000 HP

National 1320 UE Drawworks – 2000 HP Specification Overview

Engine & Power System
• Rated Power: 2000 HP diesel engine
• Drive System: A high‑efficiency mechanical and hydraulic drive configuration that optimizes power transmission and fuel economy.

Torque & Pullback Capacity
• Pullback (Line Pull) Capacity: Engineered to deliver robust pullback forces in the range of approximately 180–220 tons (roughly 360,000–440,000 lbs), ensuring reliable cable handling for deep-well and directional drilling applications.
• Torque Output: Designed to produce high torque—often in the vicinity of 35,000–40,000 lb‑ft or more—to maintain smooth, controlled cable operations even under heavy loads.

Drum & Cable Handling
• Drum Diameter: Typically features a large-diameter drum (around 30–36 inches) to maximize cable capacity and optimize winding efficiency.
• Cable Speed: Operates at controlled speeds (generally between 40–60 ft/min) to ensure smooth, gradual cable movement and minimize shock loads on the drill string.

Clutch & Brake System
• Low-Speed Clutch: Incorporates a multi-plate clutch system engineered for smooth engagement/disengagement under high torque conditions.
• Brake Assembly: Integrated friction brakes designed for rapid, controlled deceleration that safeguard cable integrity and provide precise load management.
• Thermal Management: Features designed to dissipate heat effectively during prolonged operation.

Hydraulic & Control Features
• Hydraulic System: Typically operates at pressures up to about 2500–3000 psi, providing precise control over feed and disengagement functions.
• Digital Control Interface: Offers real‑time monitoring of key parameters (drum speed, torque, hydraulic pressure) along with integrated safety features such as overload protection and emergency shutdown.

Construction & Durability
• Materials: Built from high‑strength, heat‑treated alloy steel and rugged hydraulic components to withstand harsh drilling environments and high-cycle duty.
• Overall System Weight: Generally in the 25,000–30,000 lb range, engineered for stability and a compact footprint that integrates with standard rig layouts.
• Maintenance & Service Life: Designed for extended service intervals with ease of maintenance in mind.

Applications
• Suited for deep-well and directional drilling operations that demand high pullback capacity and precise cable control.
• Ideal for rig systems where reliability, efficient power transmission, and robust safety features are critical.