ALFRA Rotabest 100 User manual

Alfra Rotabest 100

Metal Core Drilling Machine

Operation Manual

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1. Technical Data

Prod. – No.: 18630

Name : Rotabest 100

Input: 1800 Watt

Load rpm: 110/175/245/385 rpm

Tool Holder : MT 3

Coolant supply: internal, automatically

Voltage: (see nameplate)

Magnetic Adhesion: 20000 N

Boring Ø max. in Steel:

- Core Cutter 100 mm

- Twist Drills 32 mm (DIN 1897)

Cutting Depth: 50 mm

Stroke: 245 mm

Size of Magnet Foot: 80 x 230 mm

2. Description

a) Motor

b) Spindle

c) Control Panel

d) Magnet Foot

e) Arbor

f) Depth Scale

g) Hexagon screw for the adjustment of the motors´ stroke range

h) Clamping lever for clamping the magnet foot

i) Rear support

j) Recess for safety belt

k) Adjusting screws for adjusting the slide

3. Standard scope of supply

a) Transport Case

b) Coolant Unit

c) Coolant Spray

d) Chip Remover

e) Safety Belt

f) Allan Key 2,5 mm

g) Allan Key 6,0 mm

Prior to use:

Read Operation Manual!

Pay attention to Safety Precautions!

Appropriate Use

This device is destined to:

Cut material with magnetizable surface with core cutters, twist drills and to tap

threads in sheltered environment for commercial use industry and craft. The

device is suitable for drilling vertical, horizontal and overhead.

4. Safety Precautions

Danger of Injuries

During drilling operations on walls and ceilings, the Metal Core Drilling

Machine must be safeguarded with the included safety belt (f). The magnetic

adhesion is not maintained in case of a failure of circuit.

The cut core will be ejected automatically by the ejector pin. Danger of

accident! The ejector pin could possibly break in case of improper use.

Only use undamaged power cord and extension cords and regularly check on

damages!

Power supply and voltage details at the device must correspond.

Personal protection equipment

When working with this device, wear the following protection equipment:

Safety goggles, appropriate footwear, ear protection, hair net (for long hair),

possibly also apron and safety helmet.

5. Precautions of use

The place of installation for the magnet foot must be clean and rustfree.

Remove lacquer- and filler.

For non-magnetizable materials, please use the Rotabest Vacubest (Prod.-

No. 18150).

Do not execute any electric welding on the workpiece, on which the Metal

Core Drilling Machine is used.

Prior to all operations, mount coolant unit (b).

Danger of injuries! Danger of an electric shock

For operations on walls and ceilings, we recommend cooling with our spray

(Alfra BIO 2000, Prod.- No. 21010).

Switching on and off.

•Check connecting line and plug on damages first!

•Push button MAGNET ON, in order to initiate the magnet and the

magnetic adhesion is guaranteed.

•When working on walls and ceilings, safe machine with safety belt (f).

•Push the button MOTOR ON to start the Motor.

•The magnet foot now reaches its maximum magnetic adhesion! In case

of a damaged magnet, the motor won´t start.

•To switch off machine proceed in reverse order : MOTOR OFF and

then MAGNET OFF!

Change of tools

How to work with annular cutters ( Weldon shank)

•Mount Tool Holder AMK 3 in arbor.

•Push ejector pin (center pin) through head of annular cutter.

•Mounting of Rotabest Cutter according to drawing. Setscrew must be

positioned in the center of the lateral flat side of the Weldon shank. Fix

tightly.

How to work with TCT Core Cutter Type AL

Mount TCT Core Cutters with keyway (2002...050) on Tool Holder AL 3

(20230) and fix setscrew tightly.

Adjustable magnet foot:

For better positioning release clamping lever (H). Now the machine can be

swiveled 30° left or right, resp. move 10 mm for- and backwards. When

using cutters larger than 80 mm the magnet foot must be in the home

position.

An accidental release of the magnet foot will be

avoided.

How to work with twist drills.

•The drill chuck 3-16 mm with MT 3 shank is only to be used with twist

drills.

•Insert drill chuck with adaptor in the arbor.

•Insert twist drill in drill chuck and tighten drill chuck key.

•Twist drills with MT 3 shank can be inserted directly into the arbor.

Tapping

With the Tapping Attachments it is possible to tap from M 3 up to M 16.

The Tapping Attachment automatically switches over to left-hand rotation,

as soon as spindle (B) is turned back.

Operating tips.

First, place annular cutter with ejector pin on a marked center or marking.

Drilling with ALFRA Rotabest cutters does not require much expenditure of

force. Set the cutter and spot-drill, until the entire cut edge is formed as a

circle.

During the drilling process, the cutter should be cooled permanently. Optimal

Cooling is possible by internal cooling with our coolant unit.

During the drilling process, do not stop the motor. After the process, cutter

draw back with running motor.

Remove chips and core after each drilling. Remove chips with Chip-Remover

– do not touch with bare hands – DANGER OF INJURY!

6. Cleaning.

Danger of injuries by unintentional switching on. Pull plug prior to cleaning.

Clean motor by means of dry compressed air ( from the outside).

Check connecting lines on damages.

Clean and grease sliding surfaces regularly. Should, nevertheless, lateral play

arise by wear of the dovetail guide, this could be adjusted by adjusting the

laterally positioned set screws (K).

Carbon brushes should be replaced after appr. 250 hours running time.

After the work is finished, we recommend to store the Metal Core Drilling

Machine in the transport case in a lying position.

7. Maintenance and repair.

Maintenance, check and repairs are only to be made by electronics

specialists according to the valid regulations of the respective country.

The Metal Core Drilling Machine ALFRA ROTABEST should be serviced after

appr. 250 hours running time by our Alfra workshop or appointed dealers.

Only use genuine ALFRA spare parts.

Spare part list at the end of this operation manual.

8. Accessories

Tool Holder AMK 3 – Morse Taper 3

For Cutters with weldon shank

Product -No. 18025

Alfra Rota Quick HSS Co Core Cutter

Ø 12 – 60 mm Cutting depth 25 mm

Product -No. 1901 0.. 025 / 1902 0.. 025

Center- and ejector pin

Product –No. 1926500

Alfra Rota Quick HSS Co Core Cutter

Ø 12 – 40 mm Cutting depth 35 mm

Product -No. 1901 0.. 035

Center- and ejector pin

Product –No. 1935500

Alfra Rota Quick HSS Co Core Cutter

Ø 12 – 60 mm Cutting depth 50 mm

Product -No. 1901 0.. 050 / 1902 0.. 050

Center- and ejector pin

Product –No. 1950500

Alfra Rota Quick TCT Core Cutter

Ø 14 – 35 mm Cutting Depth 35 mm

Product -No. 2003 0.. 035

Center- and ejector pin

Product –No. 2001500

Alfra Rota Quick TCT Core Cutter

Ø 14 – 50 mm Cutting Depth 50 mm

Product -No. 2003 0.. 050

Center- and ejector pin

Product –No. 2001501

Tool Holder AL 3 – Morse Taper 3

For Cutters with AL shank

Alfra Rotabest TCT Core Cutter

Ø 51 – 100 mm Cutting depth 50 mm

Product- No. 2002 ... 050

Alfra Tapping Attachment M3 – M12

Product-No. 18652

Alfra Tapping Attachment M10 – M 20

Product-No. 18653

HSS Countersink and Deburrer Ø 25 mm

Product -No. 18533

HSS Countersink and Deburrer Ø 40 mm

Product -No. 18534

Key Type Drill Chuck Ø 3-16 mm

Product -No. 18009

Attachment for clamping pipes

Product -No. 18019

Attachment for clamping pipes with two chains

Product -No. 18020

Vacuum device Vacubest

Product -No. 18150

Coolant unit

Product -No. 18104

Alfra Bio 2000 Cutting Oil

Product -No. 21010

Alfra Magnetic Chip Remover

Product -No. 18654

9. Guarantee

For our ALFRA Rotabest Metal Core Drilling Machines we grant guarantee

according to the legal and regional regulations (proven by invoice).

10. CE Declaration of Conformity

We declare in our exclusive responsibility, that this product correspond to the

following standards and specifications:

Specification 89/392/EWG, 91/368/EWG

DIN EN 292 part 1 and 2

DIN EN 60204 part 1

DIN VDE 0740 T

The proof of an electromagnetic amicability took place according the

appropriate EC-Specification 89/336/EWG after the following norms:

EN 61000-3-2:1995/A1:1998/A2:1998

EN 61000-3-3:1995

EN 55014-1:1993/ A1:1997 55014-2:1997

If the electric tool is modified without our authorization, this declaration will

lose ist validity and the guarantee expires.

The sound pressure level at the work place might exceed 85 dp(A). In case the

user must wear hearing protectors.

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