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Press
Brake
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Hydraulic Press Brake machines and Edwards Shop Press with Brake Tooling:
To bend
metal, Press Brake machines normally use a wedge shaped upper die that
force the metal down into the V shaped lower die to bend metal to conform
with the tooling.
Click to see 4 pages of standard Press Brake Dies.
A Back Gauge can position the metal exactly where you want it, and the
Ram Depth Control is used to stop the upper die at the correct depth
down into the lower die to form the angle desired. Sophisticated tooling
can be used to form several bends simultaneously. The size of machine
required is normally determined by the thickness of the metal and width
of the bottom V-die used.
Air
Bending is when the upper die (punch) pushes the metal down into
the bottom die without bottoming the metal into the bottom die. When
the punch is raised, the metal retracts a little from the air bend position.
The amount of the retraction is the spring-back. The amount of spring
back depends on the type of metal, the thickness, grain direction and
hardness. You should expect less than a degree of spring back unless
you are bending a hard metal like stainless steel, in which case you
should use 85 degree tooling. Expect the inner bend radius to be slightly
greater than the radius of the punch. Air bending is the method normally
when calculating the tonnage required. Click for our Press
Brake Tonnage Chart to estimate the size machine you need.
Bottoming (or Coining) is when the upper die (punch) pushes the
metal all the way down into and against the bottom die. This causes
the metal to take the shape of the die set and results in very little
spring back. Coining happens if you push the metal down hard into the
bottom die. The minimum inner radius of the metal should be equal to
at least one metal thickness. Warning: Coining can easily crack brittle
metals such as aircraft aluminum. Coining requires more tonnage from
your brake press machine than does bottoming which requires more tonnage
than does air bending.
Betenbender and Chicago brand brake presses use American style tooling and come with a simple 2-Axis CNC controlled back gage and ram die depth control with memory for multiple bends to easily form your simple or complex parts jobs again and again. Complete forming jobs can be saved in memory. To program the memory you simply make your first part manually and save the ram depth and back gauge positions in the CNC memory. Whenever you make the same part again the machine knows what to do. You just have to position the metal against the back gauge. Metal forming can also be done in a manual mode for single parts.
Click if you are looking for an electric-hydraulic powered metal folding brake machine to bend your metal. They are safer, simpler, less expensive and less versatile.
PRESS BRAKE SAFETY: a Safety device such as Light Curtains are strongly recommended to prevent fingers and hands from getting crushed especially for predictable repeat uses. Safety compliance is the users responsibility. Please take it seriously. *** Click for our Machinery Safety webpage ***.
Click for chart of tensile strengths for aluminum and stainless steel to compare with mild steel. Click for a Bend Radius Chart for aluminum and stainless steel.
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CHICAGO DREIS & KRUMP
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BETENBENDER HYDRAULIC PRESS BRAKE MACHINES
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CLICK
TO WATCH A VIDEO |
| Betenbender Press Brake Model |
Tons | Length of Bed |
Between Frame |
Open Height |
Stroke | Throat Depth |
Motor H.P. |
Weight Lbs. |
| 4-50 (4 feet x 50 tons) Click to Request a Quote |
50
|
4
feet
|
30-1/2"
|
14"
|
8"
|
8"
|
10
|
5800
|
| 6-50 (6 feet x 50 tons) Click to Request a Quote |
50
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
10
|
6800
|
| 8-50 (8 feet x 50 tons) Click to Request a Quote |
50
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
10
|
8000
|
| 10-50 (10 feet x 50 tons) Click to Request a Quote |
50
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
10
|
11000
|
| 12-50 (12 feet x 50 tons) Click to Request a Quote |
50
|
12
feet
|
126-1/2"
|
14"
|
8"
|
8"
|
10
|
12500
|
| 4-70 (4 feet x 70 tons) Click to Request a Quote |
70
|
4
feet
|
30-1/2"
|
14"
|
8"
|
8"
|
10
|
7500
|
| 6-70 Click to Request a Quote |
70
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
10
|
8000
|
| 8-70 Click to Request a Quote |
70
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
10
|
11000
|
| 10-70 Click to Request a Quote |
70
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
10
|
13000
|
| 12-70 Click to Request a Quote |
70
|
12
feet
|
126-1/2"
|
14"
|
8"
|
8"
|
10
|
14500
|
| 14-70 Click to Request a Quote |
70
|
14
feet
|
150-1/2"
|
14"
|
8"
|
8"
|
10
|
15500
|
| 6-85 Click to Request a Quote |
85
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
20
|
13000
|
| 8-85 Click to Request a Quote |
85
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
20
|
18000
|
| 10-85 Click to Request a Quote |
85
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
20
|
20100
|
| 12-85 Click to Request a Quote |
85
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
20
|
21000
|
| 14-85 Click to Request a Quote |
85
|
14
feet
|
150-1/2" |
14"
|
8"
|
8"
|
20
|
23000
|
| 6-120 Click to Request a Quote |
120
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
20
|
17000
|
| 8-120 Click to Request a Quote |
120
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
20
|
19000
|
| 10-120 Click to Request a Quote |
120
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
20
|
22000
|
| 12-120 Click to Request a Quote |
120
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
20
|
24000
|
| 14-120 Click to Request a Quote |
120
|
14
feet
|
150-1/2" |
14"
|
8"
|
8"
|
20
|
26000
|
| 6-160 Click to Request a Quote |
120
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
20
|
17000
|
| 8-160 Click to Request a Quote |
120
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
20
|
19000
|
| 10-160 Click to Request a Quote |
120
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
20
|
22000
|
| 12-160 Click to Request a Quote |
120
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
20
|
24000
|
| 14-160 Click to Request a Quote |
120
|
14
feet
|
150-1/2" |
14"
|
8"
|
8"
|
20
|
26000
|
| 6-190 Click to Request a Quote |
190
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
20
|
17000
|
| 8-190 Click to Request a Quote |
190
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
20
|
19000
|
| 10-190 Click to Request a Quote |
190
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
20
|
22000
|
| 12-190 Click to Request a Quote |
190
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
20
|
25000
|
| 14-190 Click to Request a Quote |
190
|
14
feet
|
150-1/2" |
14"
|
8"
|
8"
|
20
|
27000
|
| 6-240 Click to Request a Quote |
240
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
30
|
23000
|
| 8-240 Click to Request a Quote |
240
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
30
|
26000
|
| 10-240 Click to Request a Quote |
240
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
30
|
29000
|
| 12-240 Click to Request a Quote |
240
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
30
|
33000
|
| 6-300 Click to Request a Quote |
300
|
6
feet
|
54-1/2"
|
14"
|
8"
|
8"
|
30
|
29000
|
| 8-300 Click to Request a Quote |
300
|
8
feet
|
78-1/2"
|
14"
|
8"
|
8"
|
30
|
31000
|
| 10-300 Click to Request a Quote |
300
|
10
feet
|
102-1/2"
|
14"
|
8"
|
8"
|
30
|
33000
|
| 12-300 Click to Request a Quote |
300
|
12
feet
|
126-1/2" |
14"
|
8"
|
8"
|
30
|
35000
|
EDWARDS HYDRAULIC PRESS & BRAKE • 40
Tons capacity hydraulic shop press 220 Volts
3 phase Hydraulic Power Unit costs extra |
 |
American
Machine Tools Corp.
5862
Northwest Hwy
Chicago IL 60631 USA
Phone: 773-334-5000
Fax: 773-442-0314
Click
to email us
American Machine Tools Co.
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