Oiler Pump in Roll Forming Machines — Lubrication Pressure & Flow Control Guide

Oiler Pump in Roll Forming Machines — Complete Engineering Guide

1. Technical Definition

An oiler pump is a mechanical or electric pump used in roll forming machines to deliver lubrication oil from the reservoir tank to strip oiler nozzles at controlled pressure and flow rate.

It ensures:

• Consistent oil delivery

• Controlled lubrication volume

• Stable forming friction conditions

• Protection of roll tooling

• Reliable high-speed operation

The oiler pump is the active delivery component of the strip lubrication system.

2. Where It Is Located

Oiler pumps are typically installed:

• Near the oiler reservoir tank

• Beneath the strip entry section

• Inside lubrication control cabinets

• On dedicated lubrication skids

• Adjacent to flow control valves

Placement allows short suction line and controlled discharge routing.

3. Primary Functions

3.1 Deliver Lubricant

Transfers oil from tank to nozzles.

3.2 Regulate Flow

Maintains consistent lubrication rate.

3.3 Provide Pressure Control

Ensures proper spray atomization.

3.4 Support Automated Operation

Can be PLC-controlled for timed lubrication.

4. How It Works

1. Pump motor activates

2. Suction line draws oil from reservoir

3. Pump pressurizes oil

4. Oil flows through control valve

5. Nozzles apply lubricant to strip

Flow rate may be constant or adjustable.

5. Types of Oiler Pumps

Gear Pump

Common for steady pressure and flow.

Diaphragm Pump

Suitable for lower-pressure applications.

Peristaltic Pump

Used in precision metering systems.

Electric Centrifugal Pump

Used for recirculation systems.

Gear pumps are most common in roll forming oilers.

6. Flow & Pressure Considerations

Pump sizing depends on:

• Strip width

• Line speed

• Lubrication volume requirement

• Number of spray nozzles

• Oil viscosity

Incorrect pump sizing affects lubrication consistency.

7. High-Speed Production Considerations

In high-speed roll forming lines:

• Higher flow rates are required

• Stable pressure prevents uneven spray

• PLC integration improves accuracy

• Pulsation dampeners may be used

Flow fluctuation affects surface finish quality.

8. Heavy Gauge Applications

Thicker materials:

• Generate higher forming friction

• Require increased lubrication volume

• Demand higher pump pressure

• Increase duty cycle load

Heavy-duty pumps may be required.

9. Light Gauge Applications

Thin materials require:

• Precise flow control

• Minimal oil volume

• Even distribution

• Clean lubrication to avoid contamination

Over-lubrication may affect coating adhesion.

10. Common Failure Causes

Typical issues include:

• Pump seal wear

• Gear wear (gear pump)

• Air suction leak

• Electrical motor failure

• Clogged intake filter

• Oil contamination

Air in suction line causes cavitation.

11. Symptoms of Pump Problems

Operators may notice:

• Reduced oil flow

• Irregular spray pattern

• Increased tool wear

• Pump noise

• Oil pressure fluctuation

• Alarm for low lubrication

Lubrication inconsistency directly affects roll life.

12. Installation Requirements

Proper installation requires:

• Short suction line

• Proper suction height

• Secure electrical connection

• Leak-free fittings

• Correct pump orientation

Poor installation may cause suction instability.

13. Maintenance Requirements

Routine inspection should include:

• Oil level monitoring

• Filter cleaning

• Seal inspection

• Pressure verification

• Leak inspection

Regular oil replacement protects pump internals.

14. Safety Considerations

Oiler pump issues may cause:

• Oil leakage

• Slip hazards

• Fire risk (depending on oil type)

• Equipment damage

• Environmental contamination

Proper containment and electrical grounding are recommended.

15. Engineering Selection Criteria

When specifying an oiler pump, engineers evaluate:

• Required flow rate (L/min)

• Required pressure (bar or psi)

• Oil viscosity

• Duty cycle

• Environmental conditions

• PLC control compatibility

Correct selection ensures consistent and efficient lubrication.

16. Role in Strip Lubrication System

The oiler pump supports:

• Strip oiler nozzles

• Lubrication reservoir tank

• Flow control valves

• Filter systems

• Forming roll protection

It is the active driver of lubrication delivery in the strip preparation system.

Engineering Summary

The oiler pump is a pressurized fluid delivery component used to supply lubrication oil to strip oiling systems in roll forming machines.

It:

• Maintains consistent oil flow

• Regulates pressure

• Supports high-speed forming

• Protects roll tooling

• Enhances surface finish quality

Though compact, it is essential for maintaining controlled friction and extending tool life in roll forming operations.

Technical FAQ

What does an oiler pump do?

It delivers lubrication oil from the tank to strip oiling nozzles.

What type of pump is most common?

Gear pumps are widely used for steady flow.

Can air in the system cause issues?

Yes. Air suction causes cavitation and inconsistent flow.

How often should pump filters be checked?

During routine lubrication system maintenance.

Can insufficient lubrication damage rolls?

Yes. Increased friction accelerates wear and surface scoring.