The Serrmac column drill model RAG 25/L is an industrial machine that represents an excellent choice for those looking for a used machine, in perfect condition, but at an advantageous price. We are talking about a robust and precise machine, used only for small repairs, therefore with a very long operational life. The Serrmac RAG 25/L is perfect for those who need a versatile and resistant drill, capable of tackling drilling jobs in various contexts.

What the Serrmac RAG 25/L column drill looks like

Visually, the Serrmac RAG 25/L presents itself with a solid steel structure, mounted on a stable and heavy base which ensures high resistance to vibrations. The body of the machine, made of high quality materials, has high durability over time. The column is cylindrical, robust and perfectly aligned to guarantee precision during drilling operations. The drill head is mounted at the top, adjustable in height along the column, with a chuck capable of accommodating bits of various diameters, thus offering great flexibility in processing.

Main components of the Serrmac RAG 25/L

The Serrmac RAG 25/L drill is equipped with a series of essential components that improve its reliability and operation:

• Chuck with Morse taper connection : ensures a secure grip of the drill bits, with a large capacity for various diameters.
• Mechanical speed change : allows you to easily select the most suitable speed for the material to be processed.
• Manual and automatic advancement : the drill can be used with both manual advancement of the bit and automatic advancement, useful for deeper or more precise drilling.
• Ergonomic control buttons : the controls are positioned in an accessible way and guarantee easy adjustment of the drill's functions.

Technical data of the Serrmac RAG 25/L

• Maximum drilling capacity : 25 mm
• Spindle speed : adjustable in multiple intervals, with a range from 65 to 1800 rpm
• Spindle stroke : 120 mm
• Spindle connection : CM 2 (Morse Cone 2)
• Maximum distance between spindle and base : 1000 mm
• Distance between spindle and column : 250 mm
• Motor power : 1.5 kW, 400V three-phase power supply
• Base dimensions : 500 x 400 mm
• Weight : approximately 400 kg

Mechanical characteristics and use

The Serrmac RAG 25/L stands out for its drilling precision and ability to work on different materials such as steel, aluminium, plastic and light alloys. Thanks to the mechanical speed change, the operator can adapt the spindle speed to the specific material he is drilling, reducing the risk of errors or damage. The chuck, thanks to its CM2 Morse Cone , allows rapid replacement of the tips.

Using the Serrmac RAG 25/L is simple and intuitive: once the piece has been fixed on the base, the operator selects the desired speed and can start drilling. Thanks to the adjustable column, it is possible to drill pieces of different sizes and thicknesses, always guaranteeing maximum precision.

Compatible accessories

The Serrmac RAG 25/L column drill is compatible with various accessories that extend its versatility:

• Vices for fixing the piece : useful for blocking the pieces during drilling.
• Bits of various diameters : thanks to the Morse Cone connection, it is possible to use different types of bits, depending on the processing required.
• Lubricating devices : useful for drilling more resistant materials such as steel.

Mathematical formulas for optimal parameters

For optimal use, it is important to calculate the correct spindle speed based on the material to be drilled. The most common formula is:

Rotational speed (rpm) = (Cutting speed x 1000) / (π x Tip diameter)

Where the cutting speed varies depending on the material: for example, for steel a speed of approximately 30-35 m/min is recommended, while for aluminum 60-80 m/min.

Maintenance

To ensure optimal functioning of the Serrmac RAG 25/L , it is essential to carry out regular maintenance. This includes:

• Lubrication of guides and spindle : to avoid friction and premature wear.
• Cleaning the bed and spindle : removing machining chips to maintain accuracy.
• Checking the speed change belts and gears : to ensure that the drill runs smoothly.

Safety regulations

Being a used machine, the Serrmac RAG 25/L may not comply with the latest CE regulations. However, it is possible to adapt the machinery to current regulations by installing protections for rotating parts and adding emergency stop devices. This makes the use of the drill completely safe and compliant with current standards.

How to evaluate if it is a good used one

Checking the condition of the spindle and base is crucial to understand if the Serrmac RAG 25/L is a good used one. Checking the wear of the moving parts and the functionality of the speed change can provide important information on the level of maintenance of the machine. A drill that has only undergone minor repairs, as in this case, represents an excellent purchasing opportunity.

Sectors of use

Serrmac RAG 25/L is particularly suitable for:

• Mechanical workshops : for drilling operations on pieces of various sizes.
• Automotive sector : for the processing of precision mechanical components.
• Light carpentry work : ideal for drilling in light alloys and metals.

Why buy it used

Buying a used Serrmac RAG 25/L drill press offers a huge economic advantage without sacrificing quality. The savings compared to new are significant, and considering the excellent condition of the machinery, it is a safe and long-lasting investment. Furthermore, the reliability of the Serrmac guarantees high performance even after years of use.

In conclusion, the Serrmac RAG 25/L column drill represents an excellent deal for those looking for a used machine but in excellent condition. With its robustness, precision and versatility, it is an ideal choice for multiple industrial sectors.