SJR Machinery Co., Ltd.
- Process mechanical transmission with compact form and high reliability.
- Three rollers drive, and can rolling thin wall thickness pipe.
- Can feeding in both sides.
- Two pedal and one emergency switch make it easy to operate.
- This machine drives stably and can processing different shapes. Use three rollers multi dies and manual help to rolling different radius and shapes, such as round, arc , spring and so on.
- It can process different profile like angle iron, flat iron, round pipe, and other different sections.
- This machine used to bending large radius, and do not need to make super dies.
Technical Principle
When workpiece is impacted within central mandrel and mandrel of both side it brings bending moment. Force of friction drives the workpiece when roller rolling. Then the workpiece turns to circle under the bending moment and friction of force.
Picture 1: Technical Principle
|
Model |
RR75 |
|
|
max section modulus of elasticity（cm3） |
17 |
|
|
bending speed（m/min） |
5 |
|
|
profile yielding limit (Mpa) |
σs =250 |
|
|
Round Pipe |
Max. OD（mm） |
76.2 |
|
wall thickness (mm) |
4.5 |
|
|
min. bending dia (mm) |
1000 |
|
|
Round Bar |
Max. OD |
50 |
|
min. bending dia |
700 |
|
|
Square Pipe |
max. section |
60 |
|
wall thickness |
4 |
|
|
min. bending dia |
1200 |
|
|
Flat Steel in Hard way |
max. section |
80 |
|
wall thickness |
11 |
|
|
min. bending dia |
1100 |
|
|
Flat Steel in Easy way |
max. section |
80 |
|
wall thickness |
30 |
|
|
min. bending dia |
650 |
|
|
Angle Steel Incurvature |
max. section |
70 x 8 |
|
min. bending dia |
1100 |
|
|
Angle Steel excurvature |
max. section |
70 x 8 |
|
min. bending dia |
1100 |
|
|
U steel Incurvature |
channel iron model |
8 |
|
min. bending dia |
650 |
|
|
U steel Excurvature |
channel iron model |
8 |
|
min. bending dia |
650 |
|
|
No. |
Name |
Place |
Brand |
|
1 |
Touch Screen |
Germany |
SIEMENS |
|
2 |
PLC Controller |
Germany |
SIEMENS |
|
3 |
AC Contactor |
Taiwan |
ANLY |
|
4 |
Thermal Relay |
Taiwan |
ANLY |
|
5 |
Intermediate Relay |
Taiwan |
ANLY |
|
6 |
pump motor |
Taiwan |
CEMA |
|
7 |
Magnetic Exchange Valve |
Taiwan |
7oceAn |
|
8 |
Over-Flow Valve |
Taiwan |
7oceAn |
|
9 |
Single-Way Valve |
Taiwan |
7oceAn |
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