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BM-21S 

This document is protected by copyrights. 

Copying, using, or distributing without permission of PROMOTECH is prohibited. 

1.3. Design 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 2. 

View of the machine and the control panel 

1.4. Equipment included 

The

 

BM-21S

 

is

 

supplied

 

in

 

a

 

metal

 

box

 

with

 

complete

 

standard

 

equipment.

 

The

 

included 

equipment consists of: 

Bevelling machine 

1 unit 

Cutting insert 

10 units 

Metal box 

1 unit 

8 mm hex wrench 

1 unit 

6 mm hex wrench 

1 unit 

4 mm hex wrench 

1 unit 

12 mm flat wrench 

1 unit 

T15P torx screwdriver 

1 unit 

Oil for stainless steel 

1 unit 

Grease for screws 

1 unit 

Operator’s Manual 

1 unit 

 

Depth knob 

Bevel width scale 

Bevel angle scale 

Screws locking the bevel angle 

Depth lock lever 

Power switch 

START 

STOP 

Operating 

mode 

lamp 

Overload lamp 

Guide set 

Milling 
head 

Milling 
head 
cover 

Summary of Contents for BM-21S

Page 1: ...ul Elewatorska 23 1 15 620 Bialystok Poland Phone 48 85 678 34 00 Fax 48 85 651 15 31 www promotech eu e mail office promotech eu OPERATOR S MANUAL B BM M 2 21 1S S BEVELLING MACHINE ...

Page 2: ...1 Adjusting the bevel angle and width 8 3 1 2 Using cutting fluid 9 3 2 Adapting for 150 300 mm pipes 10 3 3 Adapting for 300 600 mm pipes requires optional equipment 13 3 4 Operating 14 3 5 Replacing the cutting inserts 16 3 6 Replacing the milling head 17 4 WIRING DIAGRAM 18 5 SPARE AND WEARING PARTS 19 6 DECLARATION OF CONFORMITY 20 7 QUALITY CERTIFICATE 21 8 WARRANTY CARD 22 ...

Page 3: ...contains dampers to reduce vibrations When equipped with an optional guide the machine can bevel pipes with outer diameters of 300 600 mm 12 24 1 2 Technical data Voltage 1 220 240 V 50 60 Hz 1 110 120 V 50 60 Hz Power 1600 W for 50 Hz 1800 W for 60 Hz Rotational speed 1360 1630 rpm at 230 V 1300 1560 rpm at 115 V Protection level IP 20 Protection class I Milling speed 270 m min 900 ft min for 50 ...

Page 4: ...BM 21S This document is protected by copyrights Copying using or distributing without permission of PROMOTECH is prohibited 4 441 mm 17 4 339 mm 13 4 366 mm 14 4 ...

Page 5: ...ded equipment consists of Bevelling machine 1 unit Cutting insert 10 units Metal box 1 unit 8 mm hex wrench 1 unit 6 mm hex wrench 1 unit 4 mm hex wrench 1 unit 12 mm flat wrench 1 unit T15P torx screwdriver 1 unit Oil for stainless steel 1 unit Grease for screws 1 unit Operator s Manual 1 unit Depth knob Bevel width scale Bevel angle scale Screws locking the bevel angle Depth lock lever Power swi...

Page 6: ...ses or in explosive environments 12 Use only tools specified in this Operator s Manual 13 Never use dull or damaged tools 14 Mount the cutting inserts and the milling head securely Remove adjusting keys and wrenches from the work area before connecting the plug to the power outlet 15 If the cutting edge of an insert is worn rotate the insert in the socket by 90 or if all edges are worn replace wit...

Page 7: ... dismount parts and tools only with the power cord unplugged from the power outlet 22 Repair only in a service center appointed by the seller 23 If the machine falls from any height is wet or has other damage that could affect the technical state of the machine stop the operation and immediately send the machine to the service center for inspection and repair ...

Page 8: ...vel width to zero To do this loosen the lock lever Fig 3 and rotate the knob to set the indication 0 on the bevel width scale and tighten the lever Fig 3 Initial setting the bevel width to zero To set the required bevel angle Fig 4 use the 6 mm hex wrench to loosen two side screws rotate the guide set to obtain the required angle on the scale and tighten the screws in this new position Fig 4 Setti...

Page 9: ...mm 11 16 while the width scale indicates about 9 mm 6 16 Increasing the depth at this angle will distort the bevel The maximum bevel width b 21 mm 13 16 is obtained for 45 The demanded bevel width for the required angle must be determined experimentally by gradually increasing the penetration of the milling head into the workpiece 3 1 2 Using cutting fluid Before bevelling stainless steel cover th...

Page 10: ...ay To do this use the 6 mm hex wrench to unscrew two side screws 1 Fig 6 then remove the guide set 2 rotate it by 180 around the vertical axis 3 mount again 4 and secure with the screws 1 Fig 6 Rotating and mounting the guide set Lock the turn of the T nut with the 12 mm flat wrench and use the 8 mm hex wrench to unscrew the roller screw Next move the rollers from the opening Fig 7a to the slot by...

Page 11: ...te the depth knob to set the indication 0 on the bevel width scale Then separate the rollers from each other as far as possible Fig 8 Initial setting the bevel width to zero and separating the rollers before using the machine on the pipe Place the machine on a vertically positioned pipe joining the surfaces of the guide set to the face and side of the pipe Then move the rollers symmetrically to jo...

Page 12: ...istributing without permission of PROMOTECH is prohibited 12 to the pipe Fig 9 and tighten using the 8 mm hex wrench in this position Set the required bevel angle and width as described before Fig 9 Machine prepared for work on pipes with diameters of 150 300 mm 6 12 ...

Page 13: ... 300 600 mm 10 24 assemble the guide set using an optional guide To do this remove the guide set 1 2 Fig 6 use the 4 mm hex wrench to unscrew the standard guide and assemble the guide for 300 600 mm pipes Fig 10 tightening with the screws Mount the rollers and adjust the required bevel angle and width as described before Fig 10 Machine prepared for work on pipes with diameters 300 600 mm Part numb...

Page 14: ...arked on the motor disk under the milling head cover The feed rate will depend on the profile and composition of the workpiece Most steels capable of being welded can be bevelled in one pass However make bevels wider than 12 mm 1 2 in at least two or three passes because this will require less effort and total time than for bevelling in a single pass To obtain the maximum bevel width 21 mm 13 16 i...

Page 15: ... allow the motor temperature to exceed 85 C 185 F because this can lead to damage of the motor windings After every hour of operating under full load stop the motor for 10 15 minutes Never cool the motor by running without load because it will become heated even faster than when working with load After the work is finished stop the motor using the STOP button and set the power switch to the positi...

Page 16: ... the indicator 2 and the milling head cover 3 Fig 12 Removing the milling head cover Use the supplied T15P screwdriver to unscrew the mounting screw Fig 13 then remove the insert and clean the socket Next rotate the insert by 90 and mount again or replace to a new one if all four edges are worn To replace an insert from the internal ring first remove the insert from the external ring Fig 13 Replac...

Page 17: ...een the rings of the milling head Fig 14 which will extend the life of the inserts Fig 14 Changing the cutting inserts between rings 3 6 Replacing the milling head Remove the milling head cover as shown in Fig 12 Next lock the rotation of the spindle with the 32 mm flat wrench Fig 15 use the 8 mm hex wrench to unscrew the screw and remove the milling head The 32 mm flat wrench is not included in s...

Page 18: ...BM 21S This document is protected by copyrights Copying using or distributing without permission of PROMOTECH is prohibited 18 4 WIRING DIAGRAM ...

Page 19: ...NG PARTS Name Number Milling head including mounting screws screwdriver and grease 10 inserts required GLW 0461 03 00 00 0 Cutting insert sold 10 per box PLY 000282 Mounting screw for inserts SRB 000311 T15P torx screwdriver for mounting screws WKT 000005 Grease for screws 5 g 0 17 oz SMR 000005 Oil for stainless steel 0 5 kg 1 1 lbs OLJ 000004 ...

Page 20: ...ty We PROMOTECH sp z o o ul Elewatorska 23 1 15 620 Bialystok Poland declare with full responsibility that product BM 21S Bevelling Machine which the declaration applies to is in accordance with the following standard EN 50144 1 and satisfies safety regulations of the guidelines 2006 95 EC and 2006 42 EC Bialystok 8 November 2011 ___________________________ Marek Siergiej Chairman ...

Page 21: ...prohibited 21 7 QUALITY CERTIFICATE Machine control card BM 21S Bevelling Machine Serial number Electric test Type of test Result Name of tester Test with sinusoidal voltage voltage 1000 V frequency 50 Hz Date Resistance of the protective circuit Ω Signature Quality control Adjustments inspections Quality control ...

Page 22: ...f defects in material and workmanship under normal use for a period of 12 months from the date of sale This warranty does not cover cutting inserts as well as damage or wear that arise from misuse accident tempering or any other causes not related to defects in workmanship or material Date of production Serial number Date of sale Signature of seller 1 07 30 January 2015 WE RESERVE THE RIGHT TO MAK...

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