SteelMax SM-BM-21S User manual

15335 E. Fremont Drive, Centennial, CO 80112
1–87STEELMAX, FAX [phone]
www.steelmax.com [email protected]
OPERATOR’S MANUAL
S
SM M- -B BM M- -2 21 1S S
BEVELING MACHINE

Contents
1. GENERAL INFORMATION............................................................................................... 3
1.1. Application................................................................................................................. 3
1.2. Technical data............................................................................................................ 3
1.3. Dimensions................................................................................................................ 4
1.4. Design ....................................................................................................................... 5
1.5. Equipment included ................................................................................................... 6
2. SAFETY PRECAUTIONS.................................................................................................. 7
3. STARTUP AND OPERATION........................................................................................... 9
3.1. Preparing................................................................................................................... 9
3.1.1. Adjusting the bevel angle and width................................................................. 9
3.1.2. Using the cutting fluid.....................................................................................10
3.2. Adapting for 150–300 mm pipes ...............................................................................11
3.3. Adapting for 300–600 mm pipes (option)...................................................................14
3.4. Operating..................................................................................................................15
3.5. Replacing the cutting inserts.....................................................................................17
3.6. Replacing the milling head........................................................................................18
4. SPARE AND WEARING PARTS......................................................................................19
5. ACCESSORIES...............................................................................................................20
5.1. Guide for 300–600 mm pipes....................................................................................20
5.2. Cutting tools..............................................................................................................20
6. WIRING DIAGRAM..........................................................................................................21
7. EXPLODED DRAWINGS AND PARTS LIST....................................................................22
8. DECLARATION OF CONFORMITY.................................................................................26
9. WARRANTY CARD..........................................................................................................27

SM-BM-21S
SM-BM-21 Operator’s Manual
3
1. GENERAL INFORMATION
1.1. Application
The BM-21S is a beveling machine designed to bevel stainless steel. The machine
can bevel plates, as well as pipes with outer diameters of 150–300 mm (6–12″), at an
angle of 0–60° and with the bevel width of up to 21 mm (13/16″). Also, the machine
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 Hz)
320 m/min (1050 ft/min, for 60 Hz)
Maximum bevel width (b)
21 mm (13/16″, Fig. 1)
Bevel angle (ß)
0–60° (Fig. 1)
Weight
23 kg (51 lbs)
Fig. 1. Bevel dimensions; maximum bevel width depending on the angle
β
0°
30°
45°
60°
b
21 mm
18.5 mm
21 mm
18.5 mm

SM-BM-21S
SM-BM-21 Operator’s Manual
4
1.3. Dimensions
441 mm (17.4″)
339 mm (13.4″)
366 mm (14.4″)

SM-BM-21S
SM-BM-21 Operator’s Manual
5
1.4. Design
Fig. 2. View of the machine and the control panel
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

SM-BM-21S
SM-BM-21 Operator’s Manual
6
1.5. Equipment included
1
Beveling machine
1 unit
2
Cutting insert
10 units
3
Metal box
1 unit
4
8 mm hex wrench
1 unit
5
6 mm hex wrench
1 unit
6
4 mm hex wrench
1 unit
7
12 mm flat wrench
1 unit
8
T15P torx screwdriver
1 unit
9
Oil for stainless steel
1 unit
10
Grease for screws
1 unit
–
Operator’s Manual
1 unit
1
2
4
5
6
7
8
9
3
10

SM-BM-21S
SM-BM-21 Operator’s Manual
7
2. SAFETY PRECAUTIONS
1. Before use, read this Operator’s Manual and complete a training in occupational
safety and health.
2. Use only in applications specified in this Operator’s Manual.
3. Make sure that the machine has all parts and they are genuine and not damaged.
4. Make sure that the specifications of the power source are the same as those
specified on the rating plate.
5. Connect the machine to a correctly grounded power source.
6. Do not pull the cord. This can cause damage and electric shock.
7. Keep untrained bystanders away from the machine.
8. Before each use, ensure the correct condition of the machine, power source,
power cord, plug, control parts, and milling tools.
9. Before each use, make sure that no part is cracked or loose. Make sure to
maintain correct conditions that can have an effect on the operation of the
machine.
10. Keep the machine dry. Do not expose the machine to rain, snow, or frost.
11. Keep the work area well-ventilated, well-lit, clean, and free of obstacles.
12. Do not use near flammable materials or in explosive environments.
13. Use only tools specified in this Operator’s Manual.
14. Do not use tools that are dull or damaged.
15. Make sure that the cutting inserts and the milling head are correctly attached.
Remove wrenches from the work area before you connect the machine to the
power source.
16. If the cutting edge of an insert is worn, rotate all inserts by 90°. If all edges are
worn, install new inserts specified in this Operator’s Manual.
17. Use eye protection, ear protection, respiratory protective devices, non-skid
footwear, gloves, and protective clothing. Do not use loose clothing.
18. Do not touch chips or moving parts. Do not let anything catch in moving parts.
19. After each use, clean the machine and the milling head with a cotton cloth and no
chemical agents. Do not remove chips with bare hands.
20. If you are not going to use the machine for an extended period, put anti-corrosion
material on the steel parts.

SM-BM-21S
SM-BM-21 Operator’s Manual
8
21. Maintain the machine and install/remove parts and tools only after you unplug the
machine from the power source.
22. Repair only in a service center appointed by the seller.
23. If the machine falls, is wet, or has any damage, stop the work and promptly send
the machine to the service center for check and repair.

SM-BM-21S
SM-BM-21 Operator’s Manual
9
3. STARTUP AND OPERATION
3.1. Preparing
3.1.1.Adjusting the bevel angle and width
Unplug the machine from the power source. Start with setting the bevel width to zero.
To do this, loosen the lock lever (Fig. 3), rotate the knob to set ‘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 get the required angle on the scale, and tighten the
screws in this new position.
Fig. 4. Setting the bevel angle (45° is set on the drawing)

SM-BM-21S
SM-BM-21 Operator’s Manual
10
After you set the bevel angle, use the depth knob to adjust the bevel width. The width
scale shows only a rough value because the bevel width varies with the angle. For
example, for 10° the maximum width b(Fig. 1) is about 18 mm (11/16″), while the
width scale shows 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 for 45°. Find the required
bevel width for the required angle in practice. To do this, gradually increase the
penetration of the milling head into the workpiece.
3.1.2.Using the cutting fluid
Before you bevel stainless steel, put the supplied oil onto the workpiece as shown in
Fig. 5.
Fig. 5. Preparing the edges for beveling stainless steel
Oil for stainless steel

SM-BM-21S
SM-BM-21 Operator’s Manual
11
3.2. Adapting for 150–300 mm pipes
To bevel pipes with diameters of 150–300 mm (6–12″), assemble the standard guide
set in a different way. To do this, use the 6 mm hex wrench to remove two side
screws (1, Fig. 6) and remove the guide set (2). Remove the set by 180° around the
vertical axis (3), install again (4), and attach with the screws (1).
Fig. 6. Rotating and installing the guide set
Use the 12 mm flat wrench to prevent the turn of the T-nut and use the 8 mm hex
wrench to remove the roller screw. Next, move the rollers from the hole (Fig. 7a) to
the slot. Install the rollers as shown in Fig. 7b and put the T-nut into the slot.
1
2
4
3
1

SM-BM-21S
SM-BM-21 Operator’s Manual
12
Fig. 7. Moving the rollers from the hole to the slot
Loosen the depth lock lever (Fig. 8) and rotate the depth knob to set ‘0’ on the bevel
width scale. Then, move the rollers away from each other as far as possible.
Fig. 8. Initial setting the bevel width to zero and separating the rollers
Put the machine on a vertical pipe so that the surfaces of the guide set are in contact
with the face and side of the pipe. Then, move the rollers symmetrically to make
them contact the pipe (Fig. 8) and tighten them in this position. Set the required bevel
angle and width as described before.
Roller screw
a)
b)

SM-BM-21S
SM-BM-21 Operator’s Manual
13
Fig. 9. Machine prepared for work on pipes with diameters of 150–300 mm (6–12″)

SM-BM-21S
SM-BM-21 Operator’s Manual
14
3.3. Adapting for 300–600 mm pipes (option)
To bevel pipes with diameters of 300–600 mm (10–24″), assemble the guide set by
using an optional guide. To do this, remove the guide set (1, 2, Fig. 6) and use the
4 mm hex wrench to remove the standard guide. Then, assemble the guide for 300–
600 mm pipes (Fig. 10) and tighten with the screws. Install 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 number:
PRW-0505-03-00-00-0

SM-BM-21S
SM-BM-21 Operator’s Manual
15
3.4. Operating
After you set the bevel angle and width, connect the machine to a correctly grounded
power source. Put the machine on the right so that the rollers are on the plate. Keep
a gap between the milling head and the plate (Fig. 11).
Fig. 11. Machine correctly put on the workpiece
Set the power switch to ‘I’ and press the green START button to start the motor.
Move the machine to the plate and bevel by moving the machine to the left.
Constantly press the machine to the plate.
Beveling is done according to the counter-rotation. The rotation direction of the
milling head is marked on the motor disk under the cover of the milling head.
The feed rate depends on the profile and composition of the workpiece.
Most steels capable of being welded can be beveled in one pass. However,
make bevels wider than 12 mm (1/2″) in at least two passes. This will require less
effort and time than if you bevel in a single pass.
To get the maximum bevel width (21 mm, 13/16″) in two passes, make the first
bevel width of about 14 mm (9/16″). For three passes, make the first bevel width of
about 12 mm (1/2″) and the second of about 16 mm (5/8″).
If an overload occurs because of, for example, too fast feed, the red overload
lamp comes on. If you continue work in such a case, the motor stops. Then, move
the machine away from the plate and set the power switch to ‘O’ to turn off the
power. Next, wait until the overload lamp comes off, and turn on the power again.
STOP
Feed direction
Power switch
START
Start the motor and move to the plate

SM-BM-21S
SM-BM-21 Operator’s Manual
16
You can work near the overload (when the red lamp flashes), but do not let the
motor temperature increase more than 85°C (185°F). This can lead to damage of the
motor windings. After each hour of work under full load, stop the motor for 10–
15 minutes. Do not try to decrease the motor temperature by working without load.
The motor will then get hotter than when working with load.
After the work is finished, press the STOP button to stop the motor. Then, set the
power switch to ‘O’. Use petroleum ether to clean oil from the workpiece.
Clean the machine with a cotton cloth and no chemical agents.

SM-BM-21S
SM-BM-21 Operator’s Manual
17
3.5. Replacing the cutting inserts
Unplug the machine from the power source. Remove the lever (1, Fig. 12), the
indicator (2), and the milling head cover (3).
Fig. 12. Removing the milling head cover
Use the supplied T15P screwdriver to remove the fixing screw (Fig. 12), remove the
insert, and clean the socket. Rotate the insert by 90° and install 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. Replacing the cutting inserts
2
1
3
Fixing screw

SM-BM-21S
SM-BM-21 Operator’s Manual
18
When you make bevels of low width, the cutting inserts wear only on one, inner
corner. Then, the good thing is to change the inserts between the milling cutters
(Fig. 7). This 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. Use the 32 mm flat wrench to
prevent the turn of the spindle (Fig. 15). Then, use the 8 mm hex wrench to remove
the screw, and remove the milling head. The 32 mm flat wrench is not included in
standard equipment.
Fig. 15. Replacing the milling head
Worn corners

SM-BM-21S
SM-BM-21 Operator’s Manual
19
4. SPARE AND WEARING PARTS
Name
Number
Milling head (including fixing screws and screwdriver;
10 inserts required)
GLW-0461-03-00-00-0
Cutting insert (sold 10 per box)
PLY-000282
Fixing screw for inserts
SRB-000311
T15P torx screwdriver for fixing screws
WKT-000005
Grease for screws (5 g, 0.17 oz)
SMR-000005
Oil for stainless steel (0.5 kg, 1.1 lbs)
OLJ-0505-09-00-00-0
Oil for stainless steel (1 kg, 2.2 lbs)
OLJ-0505-10-00-00-0
Oil for stainless steel (5 kg, 11 lbs)
OLJ-0505-11-00-00-0

SM-BM-21S
SM-BM-21 Operator’s Manual
20
5. ACCESSORIES
5.1. Guide for 300–600 mm pipes
5.2. Cutting tools
Part number
Part name
PLY-000591
Cutting insert (10 required, sold 10 per box)
Part number:
PRW-0505-03-00-00-0