LUBE USA 106821 Copper Tubing (4mm, CT-4) – Rigid Lubrication Line (25 ft Coil)

$2.56

4mm copper tubing (Part #106821) designed for high-strength, permanent lubrication lines, offering durability and consistent oil flow in centralized lubrication systems.

100 in stock

Description

Product Overview

The LUBE USA 106821 copper tubing (CT-4) is designed for use in centralized lubrication systems where strength and durability are required. It carries oil from pumps to distribution points and machine components, providing a reliable and consistent flow path.

Unlike flexible nylon tubing, copper tubing offers a rigid solution for permanent installations and demanding environments.


Applications

  • Centralized lubrication systems
  • CNC machines and machining centers
  • Permanent oil line installations
  • High-pressure or high-temperature environments

👉 Copper tubing is commonly used for main and tail lubrication lines due to its strength and reliability


Key Features

  • 4mm outer diameter / ~3mm inner diameter
  • High strength and rigid construction
  • Handles higher pressure than nylon tubing (~6.9 MPa)
  • Resistant to heat and mechanical damage
  • Ideal for permanent or fixed routing
  • Sold in coil form (typically 25 ft lengths)

Why This Tubing Matters

In lubrication systems, tubing must reliably deliver oil under pressure and in harsh conditions.

Flexible tubing may:

  • Move or vibrate
  • Wear over time
  • Be damaged in exposed areas

Copper tubing provides a rigid, durable alternative that:

  • Maintains shape and routing
  • Resists vibration and damage
  • Ensures consistent oil delivery

When to Use This Tubing

  • When a rigid, permanent line is needed
  • In high-pressure lubrication systems
  • In exposed or high-heat environments
  • When replacing damaged or worn tubing

Specifications

  • Part Number: 106821
  • Model: CT-4
  • Outer Diameter: 4mm
  • Inner Diameter: ~3mm
  • Material: Copper (phosphor deoxidized)
  • Working Pressure: ~6.9 MPa (~1,015 PSI)
  • Form: Coil (commonly 25 ft)
  • Application: Lubrication oil transfer

📞 Need Help Choosing Between Nylon & Copper Tubing?

Not sure which tubing is right for your system?

👉 Call us or request a quote—we can help you choose the correct tubing and fittings.

Additional information

Weight .2 lbs
Dimensions 11.25 × .01 × .01 in