speedPOWER Press cylinders
www.pneumohydraulik.com
www.specken-drumag.com www.ribapneumatic.de www.hydaira.ch www.cges.be
1
speedPOWER – Introduction Pneumohydraulics speedPOWER is the name of the new generation of power cylinders for press and plant engineering applications. The cylinder is used when high forces are required, for example for punching, splitting, pressing, stamping, molding, riveting, clamping, compressing or spot welding. In power stroke mode users are provided with many times the force of a comparable conventional pneumatic cylinder with the same air consumption. speedPOWER is designed in the same way as a doubleacting pneumatic cylinder and is also controlled in the same manner. It is equipped with a pneumohydraulic pressure booster which generates a power stroke when necessary depending on the counterforce. The power cylinder can be operated directly from the compressed air network by means of a pneumatic valve.
Simple operation With its clever design the speedPOWER can be controlled in the same manner as a double-acting pneumatic cylinder. In contrast to conventional power cylinders, switchover from fast stroke to power stroke takes only approx. 0.05 seconds, without venting noises and without requiring an additional valve.
Tool-conserving operation Positioning of the operating piston with the tool on the workpiece is extremely precise and therefore protects the tool, as only the surface of the piston rod is effective due to the design of the device with its freely-actuated operating piston. On version SPK80 with a piston rod diameter of 20 mm and a nominal pressure of 6 bar, for example, this contact force is 190 N; switchover from fast stroke to power stroke is therefore initiated at a counterforce of 190 N. The operating piston is hydraulically damped when it is pushed into the high-pressure sleeve and moves smoothly without jerking.
2
Switchover from fast stroke to power stroke is unnoticeable. While conventional pneumatic cylinders „shoot through“ at full power, for example during punching operations, the speedPOWER gently makes contact with the workpiece with a low force and then builds up the full power. Machining workpieces with varying heights does not pose a problem, as the power stroke is only generated when a corresponding counterforce is met at any position throughout the overall stroke.
Short flow path The pressure booster and fluid reservoir are carried along during fast stroke and power stroke to ensure a favorable flow and hydraulic interaction. This enables the use of a highly viscous hydraulic oil which minimizes oil leakages. The newly patented speedPOWER is an alternative to high-volume pneumatic systems, pure hydraulic systems and mechanical actuators. Various sizes are available for different power ranges and stroke lengths.
Introduction
Top right fig.: Metering example for the coherency between power stroke and fast stroke. Right fig.: Coherency between applied compressed air (primary pressure in bar) and system pressure (secondary pressure in bar) Fig. below: operating illustration Home position
Fast stroke until counterforce
Power stroke (mm)
Power stroke/fast stroke 20 possible fast stroke
required power stroke
required fast stroke
10 possible power stroke
0
p [bar] - 28 kN at 600 bar
With its variable power stroke and fast stroke, the speedPOWER is suitable for universal applications. The operating piston is extended in fast stroke mode until it makes contact with a counterforce. The power stroke is initiated when a speciďŹ c counterforce – depending on the size of the device – is generated. The high-pressure sleeve is pushed further over the operating piston. The high-pressure chamber is closed and a high pressure builds up. During this advance motion the oil is forced from the annular area into the operating piston area. Power stroke and fast stroke are interactive and form the operating range of the speedPOWER cylinder.
50
100
130 Fast stroke (mm)
Diagram power/pressure characteristics
700
28
600
24
500
20
400
16
300
12
200
8
100
4
0
0
0,25 Primary pressure [bar]
Transition
0,5 Secondary pressure [bar]
0,75
1 Time [s]
0
Power stroke with hydraulic pressure intensification
3
SPK080
Pneumatic linear actuation With integrated pneumohydraulic booster
General information Fastening: Mounting position: Activation Connection thread: Ambient temperature: Operating pressure:
Cylinder head with centering hub and inside thread at will (for upward-directed piston rod please contact us) 5/2” or 5/3” way valve G 3/8” -10° C to + 80° C 1 to 10 bar
Type designation Type
Order -No. Force in power stroke (theoretical) Pressure intensification
4
SPK080-35/130-10
SPK080-80/300-10
SPK080-20/130-17
SPK080-45/300-17
Standard
Long stroke
Standard
Long stroke
064500002
064500003
064500001
064500004
6 bar - 10 kN 10 bar - 16 kN Compressed air / High oil pressure 1 : 30
6 bar - 20 kN 10 bar - 16 kN Compressed air / High oil pressure 1 : 30
6 bar - 17 kN 10 bar - 29 kN Compressed air / High oil pressure 1 : 60
6 bar - 17 kN 10 bar - 29 kN Compressed air / High oil pressure 1 : 60
Type key Example:
SPK080-20/130-17
Force-controlled version SPK Cylinder diameter Ø 80 mm 080 Maximum power stroke 20 mm depending on fast stroke 20 Maximum fast stroke 130 mm depending on power stroke 130 Force in power stroke 17 kN at 6 bar compressed-air feed (theoretical) 17
Technical data Stroke frequency
240 strokes/min
at 6 bar operating pressure, 40 mm fast stroke and 6 mm power stroke
at 70% of max. work force. Higher stroke frequencies are possible at reduced work force
Force in fast stroke (theoretical)
190 N at 6 bar 310 N at 10 bar
Force in return stroke (theoretical)
2800 N at 6 bar 4700 N at 10 bar
Operating medium
compressed air filtered 5 µm, oiled or oil-free
Dimension drawings/dimensions ca. 38
®90
486 (Long version= 826)
8
10
48*
Ø 54
28,5
Pressure connection G 3/8” (Fast stroke and power stroke)
Ø 20 f7
M8/12 deep (8x)
18,5 32
32
Oil refill nipple and measurement connection M16x2
M 16x1,5
Ø 40 f7
Ø 40 f7
30
SW 17
* Theoretical value! due to elastical end stop under pressure up to 3 mm shorter.
Pressure connection G 3/8” (Return stroke)
5
Power stroke [mm] Power stroke [mm]
40
K80-20/130-17
30 40 20
K80-20/130-17
30 10
Diagram Work area-Compressed air/Pressing force 20 0
0
50
100
150 Fast stroke [mm]
50
100
150 Fast stroke [mm]
10
Force in power stroke (theoretical): 6 bar - 10 kN 10 bar - 16 kN Pressure intensiďŹ cation: Compressed air/High oil pressure =1:30
Work0 area: Power stroke [mm] Power stroke [mm]
Type: SPK080-35/130-10
40
0
30 40 20
K80-35/130-10
30 10 200
0
50
100
150 Fast stroke [mm]
100
150 Fast stroke [mm]
10 Power stroke [mm] Power Pressing forcestroke [kN] [mm]
Compressed air/pressing force: 900
Force in power stroke (theoretical): 6 bar - 10 kN 10 bar - 16 kN Pressure intensiďŹ cation: Compressed air/High oil pressure =1:30
80 0 30 70
50
60 25 90 50 20 40 80 30 70 15 20 60 10 10 50 4005 30 0 200 1 10 0 0 90 80 Work70 area: 60 90 50 30 40 80 25 30 70 20 60 20 10 50 150 40 0 30 10 20 105 00 0 1
10,0
50
100 2
50
3
150 4
100
200 5
6
150
250 7
200
8 250
300 Fast stroke [mm] 9 10 Compressed air [bar] 300 Fast stroke [mm]
17,0
50
100
50 2
3100
150
4
200
150 5
6 200
250
300 Fast stroke [mm]
7
2508
9 300 10 Fast stroke Compressed air[mm] [bar]
7
8
9 10 Compressed air [bar]
7
8
9 10 Compressed air [bar]
Pressing force [kN]
30 25 20 15 10
10,0
5
Pressing force [kN]
6
1
2
3
4
5
6
30 25 20 15
17,0
10 5 0
1
K80-80/300-10
K80-80/300-10
Compressed air/pressing force:
0
K80-45/300-17
K80-45/300-17
Power stroke [mm] Power stroke [mm] Pressing force [kN]
Type: SPK080-80/300-10 Long stroke
K80-35/130-10
2
3
4
5
6
Force in power stroke (theoretical): 6 bar - 17 kN 10 bar - 29 kN Pressure intensiďŹ cation: Compressed air/High oil pressure = 1:60
30
Work25 area: [mm] force [kN] Power stroke [mm]Power stroke Pressing
Type: SPK080-20/130-17
40 20
K80-20/130-17
15 30 10 40 20 5
10,0
300 10 200
1
2
3
0
4
5
K80-20/130-17
6
7
50
8
100
150 Fast stroke [mm]
100
150 Fast stroke [mm]
10
Power stroke [mm] Power stroke [mm] Pressing force [kN]
Compressed air/pressing force: 0 0 40 30
50
25 30 20 40 20 15
K80-35/130-10
17,0
5 200 00
1
2
3 50
4
5
Pressure intensiďŹ cation: Compressed air/High oil pressure = 1:60
Power stroke [mm]Power Pressing force stroke [kN] [mm]
900 80 0 30 70 Work60 area: 25 50 90 20 40 80 30 70 15 20 60 10 50 4005 30 0 200
100 7
6
10 0
50
8
150 9 10 Fast strokeair[mm] Compressed [bar]
150 Fast stroke [mm]
100
K80-45/300-17
K80-45/300-17
10,0
50 1
100 2
3
150 4
0 50 100 90 80 70 Compressed air/pressing force: 60 50 90 30 40 80 25 30 70 20 60 20 10 50 15 400 50 100 30 0 10 20 105 00 0 50 2 1 3100 4
200 5
150
Power stroke Pressing force [mm] [kN]Power stroke [mm]
Force in power stroke (theoretical): 6 bar - 17 kN 10 bar - 29 kN
K80-35/130-10
10 30 10
10
Type: SPK080-45/300-17 Long stroke
9 10 Compressed air [bar]
6
250 7
200
8 250
300 Fast stroke [mm] 9 10 Compressed air [bar] 300 Fast stroke [mm]
K80-80/300-10
K80-80/300-10
17,0
150
150 5
200
6 200
7
250
300 Fast stroke [mm]
2508
9 300 10 Fast stroke Compressed air[mm] [bar]
7
SPK125
Pneumatic linear actuation With integrated pneumohydraulic booster
General information Fastening: Mounting position: Activation: Connection thread: Ambient temperature: Operating pressure:
Cylinder head with centering hub and inside thread at will (for upward-directed piston rod please contact us) 5/2” or 5/3” way valve G 3/4” -10° C to + 80° C 1 to 10 bar
Type designation SPK125-39/ 130-20
SPK125-90/ 300-20
SPK125-20/ 130-35
SPK125-50/ 300-35
SPK125-10/ 130-81
SPK125-21/ 300-81
Standard
Long stroke
Standard
Long stroke
Standard
Long stroke
Order-No.
064500005
064500008
064500006
064500009
064500007
064500010
Force in power stroke (theoretical)
6 bar - 20 kN 10 bar - 33 kN
6 bar - 20 kN 10 bar - 33 kN
6 bar - 35 kN 10 bar - 59 kN
6 bar - 35 kN 10 bar - 59 kN
6 bar - 81 kN 10 bar - 130 kN
6 bar - 81 kN 10 bar - 130 kN
Pressure intensification
Compressed air / High oil pressure 1 : 12
Compressed air / High oil pressure 1 : 12
Compressed air / High oil pressure 1 : 25
Compressed air / High oil pressure 1 : 25
Compressed air / High oil pressure 1 : 64
Compressed air / High oil pressure 1 : 64
Type
8
Type key SPK125-20/130-35
Example: Force-controlled version K Cylinder diameter Ø 125 mm 125 Maximum power stroke 20 mm depending on fast stroke 20 Maximum fast stroke 130 mm depending on power stroke 130 Force in power stroke 35 kN at 6 bar compressed-air feed (theoretical) 35
Technical data Stroke frequency
160 strokes/min
at 6 bar operating pressure, 40 mm fast stroke and 6 mm power stroke
at 70% of max. work force. Higher stroke frequencies are possible at reduced work force
Force in fast stroke (theoretical)
900 N at 6 bar 1500 N at 10 bar
Force in return stroke (theoretical)
6300 N at 6 bar 10,5 kN at 10 bar
Operating medium
compressed air filtered 5 µm, oiled or oil-free
Dimension drawings/dimensions ca. 38
® 136
509 (Long version = 859)
10
10
59* 25
Oil refill nipple and measurement connection M16x2
Pressure connection G 3/4” (Fast stroke and power stroke)
20
50
32
* Theoretical value! due to elastical end stop under pressure up to 3 mm shorter.
M30x2
SW36
Ø 26 g6
M10/16 deep (8x)
50
Ø 88
Ø 42 Ø 45 f7 Ø 70 f7
Ø 70 f7
7
Pressure connection G 3/4” (Return stroke)
9
Diagram Work area-Compressed air/Pressing force Compressed air/pressing force: Pressing force [kN]
Pressure intensification: Compressed air/High oil pressure = 1 : 12
Power stroke [mm]
Type: SPK125-39/130-20 Work area: Force in power stroke (theor.): 50 6 bar - 20 kN 40 10 bar - 33 kN 30
0
100
50
Pressure intensification: Compressed air/High oil pressure = 1 : 25
10
1
2
3
4
5
Pressing force [kN]
0
50
100
150
200
7
8 9 10 Compressed air [bar]
7
8 9 10 Compressed air [bar]
7
8 9 10 Compressed air [bar]
60 40
0
250 300 Fast stroke [mm]
20 1
2
3
4
5
6
Compressed air/pressing force:
50 40 30
80 60 40
20
35 20
10 0
6
80
20
Pressing force [kN]
Power stroke [mm]
20
Compressed air/pressing force:
Power stroke [mm]
100 90 80 70 60 50 40 30 20 10 0
0
150 Fast stroke [mm]
Type: SPK125-20/130-35 Work area: Force in power stroke (theor.): 6 bar - 35 kN 10 bar - 59 kN
40 20
10
Type: SPK125-90/300-20 Work area:
Pressure intensification: Compressed air/High oil pressure = 1 : 12
60
20
0
Force in power stroke (theor.): 6 bar - 20 kN 10 bar - 33 kN
80
0
50
100
150 Fast stroke [mm]
0
1
2
3
4
5
6
Pressing force [kN]
40 30
0
50
100
150
200
Pressure intensification: Compressed air/High oil pressure = 1 : 64
Work area:
2
3
4
5
6
7
8 9 10 Compressed air [bar]
7
8 9 10 Compressed air [bar]
7
8 9 10 Compressed air [bar]
160 140
40
120 100
30 20
80
81
60 40
10
20
0
0
100
50
0
150 Fast stroke [mm]
1
2
3
4
5
6
Compressed air/pressing force: 160
50
Pressing force [kN]
Power stroke [mm]
1
Compressed air/pressing force:
50
140
40
120 100
30 20
80
81
60 40
10 0
40
0
250 300 Fast stroke [mm]
Type: SPK125-21/300-81 Work area: Force in power stroke (theor.): 6 bar - 81kN 10 bar - 130 kN
60
35
0
Pressure intensification: Compressed air/High oil pressure = 1 : 64
80
20
10
Power stroke [mm]
Force in power stroke (theor.): 6 bar - 81 kN 10 bar - 130 kN
50
20
Pressure intensification: Compressed air/High oil pressure = 1 : 25
Type: SPK125-10/130-81
Compressed air/pressing force:
Pressing force [kN]
Force in power stroke (theor.): 6 bar - 35 kN 10 bar - 59 kN
Power stroke [mm]
Type: SPK125-50/300-35 Work area:
20 0
50
100
150
200
250 300 Fast stroke [mm]
0
1
2
3
4
5
6
11
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