All you wanted to know about magnetic base drilling machines, annular cutters, and bevelling machines. A series of FAQs to answer all your questions.

magnetic drill

Do not use the magnetic base drilling machine in flammable or potentially explosive environments.

Persons who due to their physical, mental or motor response abilities are unable to operate the magnetic base drilling machine safely may only use the magnetic base drilling machine under supervision or instruction by a responsible person.

Persons with heart pacemakers or other medical implants must not use this magnetic base drilling machine.

Children must not be allowed to use the magnetic base drilling machine.

Inspect the magnetic base drilling machine for visible signs of damage before use. Do not use a visibly damaged magnetic base drilling machine.

Before beginning work, check the condition of the safety chain and the function of the switches on the magnetic base drilling machine.

Repairs to the mains cable may only be carried out by a qualified electrician.

Repairs to the magnetic base drilling machine may only be carried out by an authorised workshop or by the works after-sales service. Unqualified repairs can lead to considerable danger for the user.

Repairs to the magnetic base drilling machine during the warranty period may only be carried out by a service centre authorised by the manufacturer, as otherwise the warranty will be voided.

Defective parts may only be replaced with original spare parts. Only these parts guarantee that the safety requirements are satisfied.

Do not leave the magnetic base drilling machine unsupervised during operation.

Store the magnetic base drilling machine in a dry, temperate location out of the reach of children.

Do not leave the magnetic base drilling machine standing outdoors and do not expose it to moisture.

Make sure that your work area is sufficiently lit (>300 Lux).

Do not use low power magnetic base drilling machines for heavy working.

Make sure that your workplace is clean.

Keep the magnetic base drilling machine clean, dry and free of oil and grease.

Follow the instructions on lubricating and cooling the tool.

Safety mag drill

Operate the magnetic drilling machine only with the protective equipment stipulated in these operating instructions (see section Personal protective equipment).

Do not wear protective gloves when the magnetic drilling machine is running. A glove can be caught by the drilling magnetic drilling machine and torn off the hand. Risk of losing one or more fingers.

Remove loose jewellery before beginning work. Wear a hair net if you have long hair.

Always switch off the magnetic drilling machine before changing tools, performing maintenance or cleaning. Wait until the magnetic drilling machine has come to a complete standstill.

Always remove the plug from the mains socket before changing tools, cleaning or performing maintenance, in order to avoid unintentional starting of the magnetic drilling machine.

Do not put your hand into the magnetic drilling machine while it is in operation. Remove shavings only when the magnetic drilling machine is at a standstill. Wear protective gloves when removing swarf.

When working on scaffolding, the operator must be secured with a safety belt as the magnetic drilling machine can oscillate dangerously in the event of interruption to the power supply.

Check for secure clamping of the electromagnets on the substrate before every use (see section Preparing).

Secure the magnetic drilling machine with the safety chain supplied when working from an inclined or vertical position or during overheadwork. The magnetic drilling machine could fall down if the magnet is loosened or the power fails.

Check that the tool is tightened securely before using (see section Inserting the tool). Do not allow the connecting cable to hang over edges (danger of tripping).

magnet indicator mag drill

The magnet indicator provides a visual control of the magnet’s clamping force.

Magnet indicator is lit GREEN:
The magnet’s clamping force satisfies the minimum requirements. Machining can be carried out.

Magnet indicator is lit RED:
Insufficient magnet clamping force. Machining must not be carried out with the machine. This can be the case in the event of insufficient material thickness, uneven surface or due to paint, scale or zinc coatings.

overload protection mag drill

The machine is additionally equipped with thermal overload protection. If the machine becomes too hot, it switches off automatically.

Carry out the following steps before continuing to work with the machine:

Remove any blockages that may have occurred.

Allow the machine to run at no-load speed for approx. 2 minutes.

The machine is then ready for operation ag

overhead drilling

Risk of injury from the falling magnetic drill.

When working in inclined or vertical position and during overhead work, the magnetic drill must be secured to prevent it from falling using the safety chain (E) supplied.

Check the safety chain for proper function before every use. A damaged safety chain must not be used. Replace a damaged safety chain immediately.

Attach the safety chain in such a way that the magnetic drill moves away from the operator in the event of slipping.

Lay the safety chain as tightly as possible around the handle of the magnetic drill.

Check the secure fitting of the safety chain and lock before starting work.

Use the protective equipment stipulated in chapter Personal protective equipment.

Work on scaffolding

Risk of falling from sudden oscillating movements of the magnetic drill.

When working on scaffolding, the magnetic drill can make a sudden oscillating movement on starting or in the event of a power failure.

Secure the magnetic drill with the safety chain (E) supplied.

Wear a safety belt to protect yourself from falling.

magnet of mag drill

The magnet clamping force is dependent on the condition of the substrate. The clamping force is significantly reduced by paint, zinc and scale coatings and rust. The substrate must satisfy the following preconditions in order that a sufficient magnet clamping force can be achieved:

The substrate must be magnetic.
The clamping surface and the magnetic foot must be clean and grease-free.
The clamping surface must be completely smooth and level.

 

NOTE
Clean the substrate and the magnetic foot of the machine before use.
Remove any unevenness and loose rust from the substrate.
BDS offers special holding devices in its range of accessories. The best clamping effect is obtained on low-carbon steel substrate with a thickness of at least 20 mm.

 

The best clamping effect is obtained on low-carbon steel substrate with a thickness of at least 20 mm.

steel plate drilling

When drilling in steel of low thickness, an additional steel plate (minimum dimensions 100 x 200 x 20 mm) must be placed under the workpiece. Secure the steel plate to prevent it from falling.

drilling on stainless steel

A special holding device must be used when drilling in NF metals. BDS offers 2 Clamping devices For magnetic core drilling machines of the ProfiPLUS and ProfiSTART class. For tube processing and drilling of nonferrous metals and stainless steel.

Magnetic core drilling machines from the ProfiPLUS class can in their entirety also be used for the processing of non-ferrous metals and stainless steel. For that purpose, BDS offers clamping devices, which are provided with a pump with circular oil lubrication to build up a vacuum to ensure a safe connection between the magnetic core drilling machine and the workpiece. Furthermore, BDS offers customized devices, which exactly meet your requirements and instructions. Just contact us!

VACUUM PLATE FOR SMOOTH SURFACES

VACUUM PLATE FOR CHANNELLED AND GUSSET PLATES

keyless drill chuck
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Inserting the tool

Push the KEYLESS quick-change drill chuck system intothe morse taper  of the

Connect the lubricant line.

Open the quick-change drill chuck system by pushing up the sleeve and insert the tool into the chuck.

Insert the appropriate ejector pin before inserting the core drill.

Check by briefly turning the tool whether the collet is engaged.

 

 

Removing the tool

Open the quick-change drill chuck system by pushing up the sleeve and pull the tool down out of the chuck.

Calculate speed10

The BDS magnetic drilling machines are provided with speed gears and the ProfiPLUS machines are also equipped with variable speed control. As per the diameter of the annular cutter and the type of annular cutter the speed of the magnetic drilling machine has to be set.

The formula for calculating the speed is:

d = diameter of the annular cutter in mm.

v = cutting speed of the annular cutters. See below chart for cutting speeds.


The alternative easy way to calculate the cutting speed is to use our automated RPM calculate on the website CLICK HERE or download our App CLICK HERE.

speed gear

Once the speed or RPM has been calculated the next step is set the gears as per the RPM. BDS has in its range two gear and four gear machine.

Below is an example to set the gear on a four gear machine MAB 825:

The machine has a gearbox with four mechanical gear stages: The gear stage is selected by means of the two selector levers on the side of the gearbox.

To select the desired gear stage, set the two selector levers to the desired speed as shown in the table below with the machine switched off.

If calculated RPM is 360 RPM, then the machine should be set on the 3rd gear by setting the gear knob on left and right on two dots position. On ProfiPLUS machines the speed can also be fine tuned with the help of the variable speed control.

NOTE:

If possible, always select a setting with low gear stage and high motor speed. The motor is thus set to high torque and protected against overheating under heavy load.

torque mag drill

The BDS ProfiPLUS models MAB 525, 525SB, 825, 825V, 845 & 1300 are equipped with variable torque control.

The main purpose of the torque is for tapping or thread cutting where the need of speed is less and power is more. The torque delivers the power. More torque is more power.

As a thumb rule for drilling as well as for tapping keep the Torque control as maximum.

The other main advantage of the torque control is to protect the tool from brackage. In order to protect the tool, the maximum torque of the machine can be set using the controller. When the maximum set torque is reached, the machine switches off. After the cut-out, the machine must be switched off and then on again at the ON/OFF switch.

 

CAUTION

Do not use this function to switch off the machine when cutting threads in blind holes.

MAB 845 swivel base model

In order to permit optimum alignment even in difficult positions, the model MAB 845 is additionally equipped with a rotating mechanism. It allows the upper part of the machine to be rotated by 30° to both sides and by 20 mm forwards and backwards with the magnetic foot engaged.

Loosen the locking device of the rotating mechanism.

Position the upper part of the machine laterally and longitudinally.

Lock the rotating mechanism again.

Tapping with mag drill

The machine is equipped with a reversible direction of rotation and can also be used for cutting threads.

Proceed as follows for cutting threads:

Drill the hole for the thread.

Switch off the machine and select the lowest gear stage and speed.

Set the direction of rotation to clockwise (right = R) at switch.

Chuck the thread tap in the machine using the appropriate drill tap adapter.

Switch on the machine and set the thread tap onto the drilled hole.

Guide the machine slide down at hand lever without exerting pressure until the desired thread length has been cut.

Switch off the machine and set the direction of rotation to anti-clockwise (left = L) at switch.

Switch on the machine again and allow the thread tap to come completely out of the workpiece. Then guide the machine slide upwards at hand lever to avoid damaging the start of the thread.

The below video will guide on how to perform tube drilling or pipe drilling with a magnetic drilling machine

Tapping with mag drill
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All BDS ProfiPLUS machines are equipped with reversible motors to perform tapping / thread cutting. As per the size of the thread the machine requires a tapping adapter.

Note: For each size a specific adapter is required. A single adapter can not be used for multiple thread sizes.

Following is the procedure:

  1. Know the thread size to performed (example M16, M20, M30 or M42)
  2. As per the thread size and the morse taper of the machine select the GSW Quick-change drill chucks.
  3. Select the quick chnage insert for the thread size. For through holes use GSE Standard quick-change insert. For blind holes use GSS Quick-change insert with safety friction clutch. (Note: The GSS Quick-change insert with safety friction clutch can also be used for through hole tapping, but the GSE Standard quick-change insert can not be used for blind hole tapping)
  4. Insert the GSW Quick-change drill chuck into the magnetic drilling machine. Then attach the quick-change insert in the Quick-change drill chuck and then insert the tap or thread cutting tool inside quick-change insert.
  5. The above is a professional option for quick tapping. If, your requirement is to save money and not time then we recomend you an economical option for tapping adaptor with Weldon shank.
    1. Select the TAP ADAPTER WITH WELDON SHANK as per the size of the thread.
      1. Insert the tap or thread cutting tool in the tap adapter.
      2. Insert the tap adpter in the machine.

       

       

      The easiest way to select the tap adapter is by our automated system on the website called FIND TAPPING ADAPTER located in the Services & More dropdown menu or just CLICK HERE.

Bohrfuttr ZAP_04dr

MAB 100, MAbasic 200, 400, AutoMAB 350 & AkkuMAB 3000 are the magnetic drilling machines with industrial arbor 19 mm Weldon. to Twist drill with these machines you need two adapters,

  1. Adapter for drill chuck (ZAP 100)
  2. Gear rim drill chuck (ZBI 113 / ZBI 116) or you can also have Quick-Action drill chuck for faster tool change (ZSI 113 / ZSI 116)

Twist-drilling-up-to-31.75-mm

MAB 455, 485, 525, 825, 845, 1300, MABasic 450, 850 & AirMAB 5000 are the magnetic drilling machines with Morse Taper. to Twist drill with these machines you need two adapters,

  1. Taper drift for drill chuck (ZKD 216 for MT 2 machines / ZKD 316 for MT 3 machines )
  2. Gear rim drill chuck (ZBK 113 / ZBK 116) or you can also have Quick-Action drill chuck for faster tool change (ZSB 113 / ZSB 116)

ZRH

To reduce a MT 2 to MT 1 use BDS Reducing Bush DIN 285.

Order number: ZRH 210

BDS Catalogues

BDS have mainly four categories of magnetic drilling machines.

  1. ProfiPLUS

These machines are for drilling, tapping, countersink and reaming operations.
These machines have reversible motor. This is helpful for tapping (thread cutting), because you can use clockwise direction to make the tap and then after tap is finish you can change the motor direction to anti-clockwise and remove the tap without damaging the thread.
These machines also have variable torque control, which means motor power, its needed for tapping.
These machines have variable speed control required for drilling, tapping, countersink and reaming operations.
Also these machines are equipped with magnet indicator, carbon brush indicator, overload protection, friction clutch to avoid tool breakage, KEYLESS drill chuck for easy change of tool, etc.
Most important these machines have oil bath gearbox. This gearbox is very robust compared to grease gearbox of other machines.

    1. ProfiSTART
      These machines are for ONLY for drilling because they don’t have reversible motor and don’t have torque controls.
      Also these machines are equipped with magnet indicator, carbon brush indicator, Internal cabling, KEYLESS drill chuck for easy change of tool, etc.
      Most important these machines have oil bath gearbox. This gearbox is very robust compared to grease gearbox of other machines.

    1. ProfiBASIC
      These machines are for ONLY for drilling because they don’t have reversible motor and don’t have torque controls.
      The difference between these machines and above ProfiSTART machines is that ProfiBASIC machines have grease gearbox, they do not have internal cabling, no KEYLESS drill chuck and no indicators. The purpose of these machine is to have an price economical magnetic drilling machine range.
      These machines are good for regular use but for heavy duty use we recommend ProfiSTART.

    1. ProfiSPEZIAL
      These are special purpose drilling machines as below.

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