A Gillardon drill press is a versatile machine used for precise drilling of various materials. Below is a comprehensive overview of its operation, use, available types, workable materials, alternative machines, calculations for optimizing its operation, and the reasons why it's worth buying a used model.

How a Drill Press Works and How to Use It

The drill press works via a spindle that rotates at different speeds, allowing a drill bit to penetrate the material being worked. The column supports the spindle and feed unit, providing stability and precision.

Phases of use:

1. Drill bit assembly: Select and assemble the appropriate drill bit onto the chuck.
2. Setting the workpiece: The workpiece to be drilled is fixed on the work table, which can be adjusted in height and angle.
3. Speed ​​regulation: The spindle speed is set according to the material and the diameter of the drill.
4. Drilling: The spindle is lowered using the lever, allowing the bit to penetrate the material to the desired depth.
5. Removing the workpiece: Once the hole is completed, the mandrel is lifted and the workpiece removed.

Types of Existing Pillar Drills

Drill presses can be classified according to specific characteristics:

1. Bench column drill: Compact model, ideal for precision work on small pieces and in limited spaces.
2. Floor-mounted drill press: Larger and more powerful model, used for working on larger pieces and for drilling deep holes.
3. Radial column drill: Allows the spindle to move on a radial arm, allowing drilling on large pieces without having to move them.

Workable Materials

The Gillardon drill press can work a wide range of materials, including:

• Ferrous metals (steel, cast iron)
• Non-ferrous metals (aluminum, brass, copper)
• Wood
• Plastic
• Composites

The choice of drill bit and machine settings varies depending on the material.

Reciprocating Machinery

While versatile, the drill press isn't always the only option for drilling. Some alternative machines include:

• Electric hand drill: Portable, used for less precise jobs or in confined spaces.
• Milling machine: Can perform drilling operations with greater versatility and precision.
• Magnetic drill: Used for drilling in special positions, such as on vertical or elevated surfaces.
• Punching machine: For quick drilling of thin sheets without generating chips.

Calculations to Optimize Operation

Optimizing the operation of a drill press requires specific considerations:

• Rotary Speed ​​(RPM): Determined based on the material and the diameter of the bit. An approximate formula is RPM=V⋅1000π⋅DRPM = \frac{V \cdot 1000}{π \cdot D} $RPM$ $=$ π ⋅ D V ⋅ 1000 ​, V is the recommended cutting speed for the material (in meters per minute) and D is the diameter of the bit.
• Feed (mm/rev): The speed at which the bit advances into the material. Too fast a feed can cause the bit to break, while too slow a feed can cause excessive wear on the cutting edge.
• Drilling depth: Adjustable via the depth limiter, important for precise and consistent drilling.
• Lubrication: Essential for reducing friction and heat, especially when drilling metal.

Why You Should Buy a Used Gillardon Drill Press

Buying a used Gillardon drill press offers several advantages:

1. Cost savings: A used drill press costs less than a new one, allowing for significant savings.
2. Quality and Robustness: Gillardon drill presses are known for their sturdy and durable construction, which means a used model can still perform perfectly for many years.
3. Proven Reliability: A used drill has already proven its reliability over time, reducing the risk of unexpected defects.
4. Immediate availability: Unlike a new drill which may require delivery time, a used model is often available immediately.
5. Maintenance and spare parts: As an established brand, spare parts and technical support for Gillardon models are generally readily available, even for older machines.

In conclusion, a used Gillardon drill press represents a solid and profitable investment for those seeking a reliable and precise drilling machine. With proper maintenance, a used drill press can continue to offer high performance at an affordable price.