Flexibility Versatility Innovative Solutions

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Flexibility
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OVERVIEW
Versatility
Innovative Solutions
BE
K.
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KOBA provide various solution to the customers for the shock absorption, anti vibration and rate control by
advanced technology and accumulated experience.
We design, manufacture and supply Shock Absorbers, Hydraulic Buffers, Viscoelastic Buffers, Hydro-Check,
Rate Controls, Gas Spring and Special Dampers to the various industrial fields in domestic and overseas with
constant research and development and reliable quality assurance system : aerospace, defense, port facilities,
ship-building, heavy industries, factory automation, railway, steel industries , etc.
We have also adopted the “providing custom Products (customization)” system to design and manufacture
non standardized products to meet the various needs of customers.
KOBA promises the best service to satisfy customer’s requirements with high quality and fast delivery in
pursuit of our vision to be the world best manufacturer in this business field through constant effort.
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APPLICATIONS
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CLIENTS
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● Pick & place robotics
● Glass forming equipments
● Plastic bottle making
● Electronics / Semiconductor
● Automotive robotics & Transfer lines
● Assembling conveyors
● Material handling
● Printing machine
● Paper rolls
● Packing machinery
● Military
● Aerospace
● Cranes : Bridge & Trolley, Container,
Overheads
● Steel mills : Slab ingot, Crushing, Turntable
● Elevator
● Railway : Side & Front buffers,
Fixed rail end stop, Friction stop
● Automated storage/Retrieved system
● Food/ Beverage
● Medical / Pharmaceutical equipments
● Textile
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KMA Series
Adjustable type
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When moving object is collided to the bumper head of shock absorber, the
piston is moved into the body and the oil in the body is stored in Accumulator
through the groove in the outer of piston. During this process, damping force
is occurred because the kinetic energy is changed to thermal energy and it
is dissipated in the atmosphere. When moving object is returned to original
position, the piston is also located in original position by the compressed recoil
spring.
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BEARING
END COVER
ADJUST DIAL
BE
ACCUMULATOR
PISTON
RECOIL SPRING
BUMP HEAD
K.
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PISTON ROD
POSITIVE STOP
Properties
●KMA model is adjustable type so you could control the damping force according to impact velocity. KMA model has the 12 step
range to rotate the dial 0” to 300” so it is possible to get the fine tuning.
●The new KMA model has larger energy absorption capacity compared with that of old model because of increasing total surface
area of Piston. So it has wide range of Effective Weight.
●The body of KMA model is designed as one unit so it is very solid and root up the “ Bottom out “ problem.
●Threaded body of KMA provide mounting flexibility, location accuracy and increased surface area for improved thermal energy
dissipation to the atmosphere.
●Material of Piston Rod is hardened stainless steel and the bearing protect the seal and is made of special material that remains
durable for a long time to ensure a long lifespan.
●KMA has various option for the Bumper head : Steel, Steel + hard cap (black) and Steel + soft cap (Green). You could select the
option in accordance with condition of impact and circumstance.
●On using Bumper head, you do not need to use Stop collar and if you use Polypad or Urethane Cap, it makes reduce the noise.
4
KMA Series
● Range of impact velocity
- Standard : 0.3 ~ 5.0 m/sec
- Low Velocity Model : 0.08~1.3 m/sec
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● Range of Temperature
- Standard : -10 ~ 80 ℃
- option : -40~ 120 ℃ (Special oil and seal)
● Application
Industrial Robot, Packing machine, Looming machine, , Machine tools, Automobile manufacturing facilities, Tire manufacturing
facilities, Casing facilities, Semiconductor manufacturing facilities, safety device, etc.
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KMA Cap Option
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Steel head+Hard PU button
(B TYPE: Black)
K.
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Steel head+Soft PU Button
(G TYPE : Green)
Accessories
Steel head
(S TYPE )
Stop Collar
Side Load Adapter
Clamp Mount
Rectangular Flange
Lock Nut
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KMA Series
KMA Series Engineering Data
Model
Stroke
(mm)
S
Max.Energy
/ Cycle
(Nm)
ET
Max.Energy
/ Hour
(Nm/h)
ETC
7
5.5
15,000
KMA10-07
KMA16-12
KMA20-16
21.5
35,000
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12
16
-16LV
KMA25-25
25
-25LV
21.5
2.4
5.4
21
M10x1.0
3.7
9.6
33
M12x1.0
3.6
9.8
55
M14x1.5
27
4.9
11.4
80
M16x1.5
61
8
19.6
145
M20x1.5
177
10.2
29.5
285
M25x1.5
2-527
51,000
63,000
113,000
4.5-1230
BE
-
8.3-2150
-
8.3-2150
25
177
113,000
-25LV
-
-40
20-5120
40
283
149,000
-40LV
-
KMA30-35
25-6950
35
356
137,000
-35LV
-
KMA33-25
K.
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10.2
29.5
305
M27x1.5(F)
M27x3.0
10
31
429
M27x2.0
17.8
50.3
610
M30x1.5
17.5
48.8
454
M33x1.5
13.6
65.3
580
M33x1.5
25
56.2
725
M36x1.5
22.5
60
885
M36x1.5
25-6980
25
314
12,000
-25LV
-
-50
50-14,000
50
628
15,000
-50LV
-
KMA36-25
25-6,980
25
346
125,000
-25LV
-
-50
50-14,000
50
6
Comp
1.5-494
45,000
KMA27-25
-50LV
Ext
-
12
-12LV
Thread
4-477
14
-14LV
-12LV
Weight
(kg)
-
KMA12-14
KMA14-12
Recoil
Force
(N)
1-123
-07LV
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Effective
Weight
(kg)
We
692
160,000
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KMS Series
Self Adjustable type
On moving object being collided to shock absorber, the new KMS model adapted
in Piston slot Metering type absorb the impact force soft and progressive
without rapid decreasing. KMS has over 300% energy absorption capacity
compared with that of old model. So it has wide range of effective weight and
enlarged capacity of energy absorption per hour.
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SEAL
BODY
BE
PISTON ROD
BUMP HEAD
K.
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POSITIVE STOP
BEARING
ACCUMULATOR
PISTON
RECOIL SPRING
Properties
● The new KMS model has larger energy absorption capacity compared with that of old model because of increasing total surface
area of Piston and oil volume. So it has wide range of Effective Weight..
●The body of KMS model is designed as one unit so it is very solid and root up the “ Bottom out “ problem.
●Threaded body of KMS provide mounting flexibility, location accuracy and increased surface area for improved thermal energy
dissipation to the atmosphere.
●Material of Piston Rod is hardened stainless steel and the bearing protect the seal and is made of special material that remains
durable for a long time to ensure a long lifespan.
●KMA has various option for the Bumper head : Steel, Steel + hard cap (black) and Steel + soft cap (Green). You could select the
option in accordance with condition of impact and circumstance.
●On using Bumper head, you do not need to use Stop collar and if you use Polypad or Urethane Cap, it makes reduce the noise.
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KMS Series
● Range of impact velocity
. Standard : 0.3 ~ 5.0 m/sec
. KMS has the options in accordance with velocity (S1, M2 and H3)
●Range of Temperature
Standard : -10 ~ 80 ℃
option : -40~ 120 ℃ (Special oil and seal)
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● Application : Industrial Robot, Packing machine, Looming machine, , Machine tools, Automobile manufacturing facilities, Tire
manufacturing facilities, Casing facilities, Semiconductor manufacturing facilities, safety device, etc.
KMS Cap Option
BE
Steel head+Hard PU button
(B TYPE: Black)
K.
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Steel head+Soft PU Button
(G TYPE : Green)
Accessory
8
Steel head
(S TYPE )
Stop Collar
Side Load Adapter
Clamp Mount
Rectangular Flange
Lock Nut
KMS Series
KMS Series Engineering Data
Stroke
(mm)
S
Model
KMS08-06
6
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Max.
Energy
/ Cycle
Max.
Energy
/ Hour
Recoil
Force
Effective Weight (kg)
(N)
Weight
(g)
Thread
(Nm)
ET
(Nm/h)
ETC
S
M
H
Ext
Comp
5
8,000
0.6-2.8
2.6-7.5
7.2-22
2.2
5.8
10
M8x1.0
KMS10-08
08
11
14,500
2.7-8.6
7.0-19
18-54
2.5
6.9
15.5
M10x1.0
KMS12-10
10
18
34,000
1.2-2.2
1.8-9.5
8.0-65
3.7
9.6
23
M12x1.0
KMS14-15(F)
15
KMS14-15
KMS20-20
20
KMS25-25(F)
25
-25
25
KMS30-25
25
KMS36-25
25
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34
51,000
2.6-19
16-44
40-160
3.8
13.3
43
M14x1.0(F)
M14x1.5
105
55,000
10-65
52-210
146-583
8.2
23
140
M20x1.5
226
69,000
28-230
M25x1.5(F)
140-1,255
706-7,230
BE
11
346
81,500
40-350
173-1,920
1,080-5,340
490
115,000
48-320
156-1,740
981-1,505
LONG STROKE TYPE
KMS14-20
20
13
45,000
2.5-9
6-24
37-600
KMS20-30
30
52
31,100
10-40
23-128
40-1,664
29
265
M25x2.0
18.3
48.8
460
M30x1.5
K.
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25
64.3
758
M36x1.5
3.6
13.9
71
M14x1.5
6.3
16.8
188
M20x1.5
-50
50
82
37,800
10-41
24-72
45-1,822
7.8
16.6
268.6
KMS25-40
40
110
94,000
32-97
55-220
152-4,545
13.7
30.9
342.5
-50
50
120
41,000
35-106
60-240
142-2,666
13.9
30.5
457.5
-80
80
160
54,200
35-110
55-264
125-3,555
14.9
29.8
577.5
KMS30-50
50
170
135,000
37-117
70-280
280-5,440
17.1
59.8
50
-80
80
250
164,000
48-154
103-347
347-8,000
17.1
59.8
80
KMS36-50
50
220
162,000
48-152
90-363
363-7,040
24.4
44.6
994
-80
80
340
232,800
66-209
140-472
472-10,880
25.4
45.6
1,280
M25x2.0
M30x1.5
M36x1.5
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KHA Series
Adjusting type
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When moving object is collided shock absorber, the piston is moved into body.
At this time the oil in the inner tube is flown through orifices to accumulator.
During this process, damping force is occurred because the kinetic energy is
changed to thermal energy and it is dissipated in the atmosphere. When moving
object is returned to original position, the piston is also located in original
position by the compressed recoil spring.
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BEARING
SEAL
OUT TUBE
INNER TUBE
ADJUSTMENT DIAL
ACCUMULATOR
BE
BUMP HEAD
RECOIL SPRING
K.
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PISTON ROD
POSITIVE STOP
PISTON
BODY
END COVER
Properties
● KHA model is adjustable type so you could control the damping force according to impact velocity with rotating the adjustment dial 0”
to 180” to right and left.
● Threaded body of KHA provide mounting flexibility, location accuracy and increased surface area for improved thermal energy
dissipation to the atmosphere.
● Material of Piston Rod is hardened stainless steel and the bearing protect the seal and is made of special material that remains
durable for a long time to ensure a long lifespan.
● On using Bumper head, you do not need to use Stop collar and if you use Poly pad or Urethane Cap, it makes reduce the noise.
● Range of impact velocity
. Standard : 0.3 ~ 5.0 m/sec
. Low Velocity Model : 0.08~1.3 m/sec
● Range of Temperature
Standard : -10 ~ 80 ℃
option : -40~ 120 ℃ (Special oil and seal)
● Application : Industrial Robot, Packing machine, Looming machine, , Machine tools, Automobile manufacturing facilities, Tire
manufacturing facilities, Casing facilities, Crane, safety device, etc.
10
KHA Series
KHA Series Engineering Data
Recoil
Force
(N)
Stroke
(mm)
S
Max.Energy
/ Cycle
(Nm)
ET
Max.Energy
/ Hour
(Nm/h)
ETC
Effective
Weight
(kg)
We
Ext
Comp
KHA42-25
25
250
125,000
36-3,600
28
56
1.25
-25LV
25
250
125,000
-
28
56
1.25
45-6,150
38
86
1.4
38
86
1.4
32
88
1.6
32
88
1.6
65
148
3.7
65
148
3.7
Model
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Weight
(kg)
-50
50
500
166,000
-50LV
50
500
166,000
-75
75
750
200,000
-75LV
75
750
200,000
KHA64-50
50
1,300
270,000
-50LV
50
1,300
270,000
-100
100
2,600
360,000
115-17,000
45
157
4.5
-100LV
100
2,600
360,000
-
45
157
4.5
-150
150
3,900
420,000
140-22,000
47
199
5.3
-150LV
150
3,900
420,000
KHA85-50
50
2,300
370,000
-50LV
50
2,300
370,000
-90
90
4,000
650,000
-90LV
90
4,000
650,000
-125
125
5,700
930,000
-125LV
125
5,700
-165
165
-165LV
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54-9,500
82-12,600
BE
-
47
199
5.3
200-37,000
148
315
6.4
-
148
315
6.4
230-40,000
121
-
121
300-43,000
102
930,000
-
102
7,300
1,210,000
360-45,000
98
165
7,300
1,210,000
-
98
KHA115-50
50
3,700
1,501,000
370-44,000
187
-50LV
50
3,700
1,501,000
-
187
-100
100
7,400
1,805,000
370-57,000
-100LV
100
7,400
1,805,000
-150
150
11,100
-150LV
150
-200
Thread
M42X1.5
M64x2.0
K.
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365
7.6
365
7.6
191
8.6
191
8.6
429
9.8
429
9.8
427
16
427
16
178
482
19
-
178
482
19
2,100,000
370-89,000
185
538
21
11,100
2,100,000
-
185
538
21
200
14,800
2,405,000
390118,000
185
665
31
-200LV
200
14,800
2,405,000
-
185
665
31
-250
250
18,500
2,710,000
440145,000
184
649
34
-250LV
250
18,500
2,710,000
-
184
649
34
M85X2.0
M115x2.0
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KSA Series
Adjusting type
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When moving object is collided to the bumper head of shock absorber, the
piston is moved into the body and the oil in the body is stored in Accumulator
through the groove in the outer of piston. During this process, damping force
is occurred because the kinetic energy is changed to thermal energy and it
is dissipated in the atmosphere. When moving object is returned to original
position, the piston is also located in original position by the compressed recoil
spring.
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SEAL
PISTON ROD
BODY
BE
ACCUMULATOR
PISTON
INNER TUBE
&
ADJUSTMENT DIAL
BEARING
BUMP HEAD
K.
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RECOIL SPRING
ADJUSTMENT DIAL
Properties
● KSA model is adjustable type so you could control the damping force according to impact velocity. KMA model has the 12 step
range to rotate the dial 0” to 300” so it is possible to get the fine tuning. KSA has Two Adjustment Dials in Front and rear side and
the Front dial is used as Stop Collar.
● The KSA model has larger energy absorption capacity compared with that of other model because of increasing total surface area
of Piston. So it has wide range of Effective Weight.
● The body of KSA model is designed as one unit so it is very solid and root up the “ Bottom out “ problem.
● Threaded body of KSA provide mounting flexibility, location accuracy and increased surface area for improved thermal energy
dissipation to the atmosphere.
● Material of Piston Rod is plated with hard Cr and the bearing protect the seal and is made of special material that remains durable
for a long time to ensure a long lifespan.
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KSA Series
● Range of impact velocity
. Standard : 0.3 ~ 5.0 m/sec
. Low Velocity Model : 0.08~1.3 m/sec
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● Range of Temperature
Standard : -10 ~ 80 ℃
option : -40~ 120 ℃ (Special oil and seal)
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● Application : Industrial Robot, Packing machine, Looming machine, , Machine tools, Automobile manufacturing facilities, Tire
manufacturing facilities, Casing facilities, Crane, safety device, etc.
KSA Adjustment Dial
BE
Front Adjustment Dial
Rear Adjustment Dial
KSA Mount type
Clevis Mount
K.
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Clamp Mount
Accessory
Lock Collar
Stop Collar
Square Flange
Clamp Mount
13
KSA Series
KSA Series Engineering Data
Recoil
Force
(N)
Stroke
(mm)
S
Max.Energy
/ Cycle
(Nm)
ET
Max.Energy
/ Hour
(Nm/h)
ETC
Effective
Weight
(kg)
We
Ext
Comp
25
650
195,000
50-13,354
49.7
82.8
1.13
-50
50
1,300
260,000
99-26,700
45.6
84
1.3
-75
75
2,000
300,000
148-39,060
44.3
86.3
1.52
25
1,250
152,000
92-24,400
61.8
110
2.9
50
2,500
248,000
185-48,800
60.8
133.2
3.3
75
3,750
265,000
61.4
148.3
3.8
Model
KSA45-25
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KSA64-25
-50
-75
-100
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BE
277-73,240
100
5,000
360,000
370-97,650
-125
125
6,250
413,000
462-122,000
-150
150
7,500
450,000
555-146,480
KSA85-25
25
2,000
330,000
148-39,600
-50
50
4,000
462,000
296-78,100
-75
75
6,000
680,000
444-117,200
Weight
(kg)
Thread
M45x1.5
M64x2.0
59.4
160.1
4
K.
ru
57.1
160.4
7.7
51
166.8
8.9
132
245.8
12.2
131.6
271.7
14.4
130
325.1
17
M85x2.0
14
-100
100
8,000
825,000
591-156,300
125.4
327.7
20
-125
125
10,000
859,000
740-195,300
126.6
343.3
23.6
-150
150
12,000
901,000
930-220,300
126.6
386.7
28
KHG Series
Hydraulic Buffer
KHG Series has compact size and is large capacity product that satisfy higher
energy absorption with Hydraulic pressure and nitrogen gas to work together
for collision of heavy moving load. KHG Series is designed and manufactured
the multiple orifices as the request of Customer’s application. KOBA hydraulic
buffer is met the Global industrial safety standards like OSHA, AISE, CMMA,
DIN, and FEM.
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GAS CHAMBER
PISTON
REAR MOUNT MULTI ORIFICE
INNER TUBE
BE
BODY
CHAMBER
PISTON
OIL CHAMBER
Principle
PISTON ROD
BUMPER HEAD
K.
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1. When the moving load is collided to bumper head, the piston rod enters inner tube according to stroke and check valve is closed with
the oil chamber compressed.
2. The oil in chamber is absorbed the impact force by discharging through multiple orifice.
3. Also piston rode inside body makes the oil push chamber piston to compress gas chamber according to stroke so the oil mutually
interacts with nitrogen gas to absorb shock efficiently and smoothly.
4. After absorption of impact force, compressed gas chamber deliver the force to oil chamber and the check valve open so the piston
rod is return.
●
●
●
●
●
●
●
Adjustment : Self adjusting type
Filling : Oil + Nitrogen Gas
Temperature : Standard(-10~80℃), Special (-40~120℃)
Return : Nitrogen Gas
Piston Rod : Hard Chrome( over 25µ )
Body and Mount : Epoxy Paint Coatings
Application : Container crane, Overhead Crane, Stacker Crane, railway, Transfer Car,
Amusement rides, Safety Device, Steel plant facilities, etc
15
KHG Series
At a glance
KHG Series Hydro - Pneumatic Buffers
Stroke
(mm)
S
Max.
Energy
/ Cycle
(kJ)
ET
Max.Energy
/ Hour
(kJ/h)
ETC
Max Buffer
Force
(kN)
Fb
KHG 65-25
25
2
100
-50
50
4
-75
75
-100
Model
Max Side
Load Angle
(°)
Weight
(kg)
Comp
R
Type
F
Type
100
3.2
3.5
3.5
6
200
100
4.7
3.5
3.5
7
6
300
100
5.3
3.0
3.0
8
100
8
400
100
6.6
3.0
3.0
9
-125
125
10
500
100
6.6
2.5
2.5
10
-150
150
12
600
100
6.6
2.0
2.0
11
200
16
800
100
9.0
2.0
2.0
12
50
8
600
200
10
4.0
3.5
12
100
16
1,200
200
13
3.0
3.0
15
150
24
1,800
200
17
2.0
2.0
1.8
200
32
2,400
200
19
1.8
1.5
20
250
40
2,850
200
20
1.5
1.2
22
50
11
750
280
16
5.0
4.0
17
80
18
1,200
280
16
4.5
4.0
20
100
23
1,600
280
16
5.0
4.0
25
-120
120
27
1,800
-150
150
34
2,300
-200
200
46
3,100
-250
250
58
3,600
280
-300
300
69
4,200
280
-400
400
90
5,400
280
-500
500
110
6,600
275
-600
600
125
7,200
260
-800
800
140
7,900
KHG 120-100
100
45
-150
150
-200
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-200
KHG 85-50
-100
-150
-200
-250
KHG 100-50
-80
-100
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Ext
1.0
1.5
BE
280
K.
ru
20
4.5
3.5
27
20
4.5
3.5
28
20
4.0
3.0
34
25
3.5
2.5
39
25
3.0
2.0
43
25
2.5
2.0
49
25
2.5
2.0
55
25
2.0
1.5
62
210
25
2.0
1.5
73
2,900
570
38
4.0
4.5
41
70
4,400
570
38
4.0
3.5
48
200
92
5,800
570
38
3.5
3.5
58
-250
250
114
7,200
570
40
3.0
3.0
65
-300
300
130
8,500
450
40
3.0
2.5
72
-400
400
160
10,000
450
40
2.5
2.0
78
-500
500
-180
11,500
450
40
2.0
1.5
86
-600
600
200
12,800
450
40
2.0
1.5
95
-800
800
240
13,600
375
40
2.0
1.3
112
1,000
280
14,500
350
40
2.0
1.3
118
-1,000
16
Recoil
Force
(N)
280
280
2.4
3.5
KHG Series
Stroke
(mm)
S
Max
Energy
/ Cycle
(kJ)
ET
Max.Energy
/ Hour
(kJ/h)
ETC
Max Buffer
Force
(kN)
Fb
KHG 130-250
250
120
8,200
-300
300
140
-400
400
-500
Model
Recoil
Force
(kN)
Max Side
Load Angle
(°)
Weight
(kg)
Comp
R
Type
F
Type
550
40
4.5
4.0
85
9,600
550
40
4.5
4.0
92
180
12,000
550
50
4.0
3.5
106
500
220
15,000
550
50
3.5
3.5
118
-600
600
260
17,800
550
50
2.0
1.5
127
-800
800
300
19,000
460
50
2.0
1.5
148
KHG 140-100
100
62
3,800
760
38
4.5
4.0
60
-150
150
91
5,800
760
65
4.5
4.0
72
-200
200
124
9,800
730
70
4.0
3.5
85
-300
300
175
12,000
730
70
3.5
2.5
110
-400
400
234
15,000
730
78
2.5
1.5
135
-500
500
270
17,000
680
78
2.0
1.3
150
-600
600
300
20,000
630
78
2.0
1.3
160
-800
800
325
25,000
510
78
2.0
1.3
185
-1000
1,000
360
27,500
450
78
1.6
1.2
200
KHG 150-100
100
70
4,000
-200
200
136
7,200
-300
300
183
13,000
-400
400
243
13,500
760
-500
500
285
17,400
710
-600
600
323
21,000
670
-800
800
367
25,600
580
1,000
410
28,000
510
KHG 180-100
100
80
4,500
-200
200
160
-250
250
-400
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22
Ext
4.5
5.5
BE
K.
ru
45
4.0
4.5
77
75
4.0
3.5
90
75
3.5
3.5
135
75
3.0
3.0
146
85
3.0
2.5
166
85
2.5
2.0
176
85
2.0
1.5
220
85
2.0
1.5
253
980
75
4.5
4.0
110
10,000
980
80
4.5
4.0
126
200
12,800
980
80
4.5
4.0
140
400
290
14,500
880
90
4.5
4.0
168
-500
500
350
18,000
880
100
4.0
3.5
198
-600
600
430
23,000
890
100
3.5
3.0
235
-800
800
570
27,000
890
100
3.0
2.5
295
1,000
720
29,000
890
110
2.5
2.0
360
-1,000
-1,000
880
850
770
6.2
8
17
KHS Series
Hydraulic Buffer
ww
KHS Series is large hydraulic buffer. KHS Series is designed and manufactured
the multiple orifices to fit the conditions and requirements of each user for high
efficiency buffering. It is suitable for production lines that require emergency
control and repetitive operation control. KOBA hydraulic buffer is met the Global
industrial safety standards like OSHA, AISE, CMMA, DIN, and FEM.
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22
MULTI-ORIFICE
BODY
RECOIL SPRING
ACCUMULATOR
BE
K.
ru
BUMPER HEAD
PISTON ROD
PISTON
INNER TUBE
Principle
POSITIVE
STOP
1. W
hen the moving load is collided to bumper head, the piston rod enters inner tube according to stroke. The check valve is closed
and oil is discharging out of inner tube through orifices In this process, the oil is increased as much as the volume of piston rod and is
saved in accumulator
2. During this process, KHS model absorbs the impact force with damping force.
3. In return, Check valve opens and compressed coil spring makes the piston rod returned to original position. ●
●
●
●
●
●
●
18
Adjustment : Self adjusting type
Filling : Oil
Temperature : Standard(-10~80℃), Special (-40~120℃)
Return : Coil spring
Piston Rod : Hard Chrome( over 25µ )
Body and Mount : Epoxy Paint Coatings
Application : Container crane, Overhead Crane, Stacker Crane, railway, Transfer Car, Amusement rides, Safety Device, Steel plant
facilities, etc
KHS Series
At a glance
KHS Series - Hydraulic Buffers
Recoil
Force
(N)
Stroke
(mm)
S
Max Energy
/ Cycle
(kJ)
ET
Max Energy
/ Hour
(kJ/h)
ETC
Max Buffer
Force
(kN)
Fb
Weight
(kg)
Comp
Max Side
Load
Angle
(°)
Ext
KHS 65-50
50
0.5
10
12.5
6.5
14.8
3
3
KHS 90-50
50
4
80
100
14.2
30.5
3
8.5
75
75
6
108
100
10.5
19
3
9.5
-100
100
8
128
100
9.9
42
3
12
KHS 100-50
50
4.4
79
110
14.2
30.5
3
14
-100
100
8.8
140
110
9.9
42
3
16
KHS 130-70
70
10
170
179
18.2
42.5
3
16
-100
100
15
270
188
17.8
48
3
18
-150
150
21
294
175
18.3
53.5
2.5
19
KHS 170-80
80
24
432
375
18.2
44.3
3
38
-150
150
45
630
375
18.3
53.5
2
46
KHS 190-100
150
40
720
500
17.8
48
2.5
48
-150
150
60
840
500
18.3
53.5
2
60
KHS 220-100
100
44
792
550
40.5
134
2.5
67
-150
150
66
924
550
41.8
131
2
74
KHS 250-100
100
60
1,080
750
38.5
111.2
2.5
130
-150
150
90
1,260
750
34.2
107.5
2
140
-200
200
120
1,560
750
33
105
2
150
-300
300
180
2,160
750
38
121.8
2
160
KHS 300-150
150
117
1,638
975
46
142
2
186
-250
250
180
2,340
1,125
45
151
1.5
196
KHS 340-200
200
200
2,600
1,250
51
162
1.5
275
-300
300
300
3,600
1,250
49
176
1.5
305
KHS 360-250
250
294
3,822
1,470
68
178
1.5
322
-400
400
470
4,700
1,470
64
182
1.5
376
Model
ww
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22
BE
K.
ru
19
KCSC Series
Stacker Crane Buffers
ww
KCSC series is used usually in stacker crane of Automatic distributing system.
KCSC has wide range of capacity and stroke (Stroke 1500mm, Capacity 930
kJ). It is possible to design and manufacture for special purpose as customer’s
request. KOBA hydraulic buffer is met the Global industrial safety standards
like OSHA, AISE, CMMA, DIN, and FEM.
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22
Compared with KHG series, KCSC has similar structure and principle but
KCSC is designed to have large volume of Gas compared with that of oil so it
has Low Peak and Low Recoil Force. This point makes the application operate
with minimum resistance force and absorb the impact force smoothly and
progressively in emergency case.
BE
● Max. Operation cycle : 60 cycle/hour
● Max. Impact velocity : 6 m/sec
● Temperature : Standard (-10~80℃)
Special (-40~120℃)
● Return : Nitrogen Gas
● Piston Rod : Hard Chrome( Over 25µ )
● Body and Mount : Znic Plating
● Application : Stacker Crane, Amusement Rides, Automobile production Facilities, Overhead
crane, etc
Options
● Protective bellows
● Safety cable
● Urethane cap
● Mounting plates
● Foot mounts
K.
ru
Special type : Sensor/Urethane Cap
20
KCSC
KSA Series
Series
ww
Front Flange type
Rear Flange type
Foot Mount type
w.
22
BE
K.
ru
Ordering Information
KCSC 90 – 50
RF
SC
ACCESSARIES
FF:Front Flange
RF:Rear Flange
FM:Foot Mount
PB:Protective bellows
SC: Safety cable
UC:Urethane cap
Stroke
Body Dia
Series
21
KCSC Series
At a glance
KCSC Series Stacker Crane Buffers
Stroke
(mm)
S
Max Energy
/Cycle
(kJ)
ET
Max Energy
/Hour
(kJ/h)
ETC
Max Buffer
Force
(kN)
Fb
Max Side
Load Angle
(°)
Weight
(kg)
KCSC90-50
50
3.2
193
75
2.5
13
-100
100
6.5
395
75
2.0
14
-150
150
9.7
588.5
75.5
2.0
15
-200
200
13
784
75
2.0
16
-250
250
16
839
75
1.0
17
-300
300
19.6
940
75
1.0
18
Model
ww
-350
22.9
1,640
75
1.0
19
400
26.1
1,199
67
0.5
20
450
29.4
1,355
55.5
0.5
21
500
32.6
1,528
47
0.5
22
600
39.2
1,872.5
31.6
0.5
25
700
45.7
800
52.3
50
4.7
-100
100
9.4
-150
150
14.7
-200
200
19.6
-250
250
-300
-400
-450
-500
-600
-700
BE
2,244.2
24.3
0.5
33
2,633
19
0.5
36
296
115,3
2.5
14
568.2
115,3
2.0
16
881.1
115,3
2.0
20
934
115,3
2.0
22
24.5
1,056
115,3
1.0
24
300
29.4
1,186.5
115,3
1.0
26
-350
350
34.3
1,352.6
115,3
1.0
28
-400
400
39.2
1,517
115,3
0.5
30
-450
450
44.1
1,680.7
115,3
0.5
32
-500
500
49
1,845
115,3
0.5
34
-600
600
58.9
2,168.3
115,3
0.5
36
-700
700
68.7
2,485.7
115,3
0.5
42
-800
800
78.5
2,806.8
115,3
0.5
50
-900
900
88.3
3,130.4
115,3
0.5
52
-1,000
1,000
98.1
3,483.8
98.1
0.5
58
-1,200
1,200
114
4,140
62,.60
0.5
65
-1,400
1,400
131.9
5,008
36.5
0.5
75
-800
KCSC110-50
22
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22
350
K.
ru
KCSC Series
Stroke
(mm)
S
Max Energy
/ Cycle
(kJ)
ET
Max Energy
/ Hour
(kJ/h)
ETC
Max Buffer
Force
(kN)
Fb
Max Side
Load Angle
(°)
Weight
(kg)
KCSC130-50
50
9.8
590.5
245
2.0
13
-750
75
14.6
659
245
1.5
14
-125
125
24.5
815.7
245
1.5
15
-200
200
38.8
1,110.2
245
1.5
16
-250
250
48.6
1,314.3
245
1.0
17
-300
300
58.3
1,512
245
0.5
18
Model
ww
-350
w.
22
350
68
1,735.9
245
0.5
19
400
77.7
1,934
245
0.5
20
450
87.5
2,133.3
245
0.5
21
500
97.2
2,328.7
245
0.5
22
600
116.5
2,714
245
0.5
25
700
136
3,102.3
245
0.5
33
800
155.4
3,824
215.8
0.5
36
900
166.9
3,785
180.9
0.5
14
-1,000
1,000
167.8
3,824
147.2
0.5
16
-1,200
1,200
201.4
4,721.5
107
0.5
20
-1,400
1,400
234.9
5,718
66.4
0.3
22
-1,500
1,500
251.7
6,227
64.7
0.3
24
KCSC200-50
50
15.7
943.7
369.5
2.0
26
-100
100
31.4
1,534.3
369.5
1.5
28
-150
150
47.1
1,756.7
369.5
1.5
30
-200
200
62.8
1,987.9
369.5
1.0
32
-250
250
78.5
2,210.3
369.5
0.5
34
-300
300
92.4
2,855.1
369.5
0.5
36
-400
400
125.6
3,304.3
369.5
0.5
42
-500
500
157
3,757.9
369.5
0.5
50
-600
600
188.4
4,211.5
369.5
0.5
52
-700
700
219.8
4,660.7
369.5
0.5
58
-800
800
251.2
5,114.3
369.5
0.5
170
-900
900
282.6
5,567.9
369.5
0.5
180
-1,000
1,000
314
6,017.1
332.5
0.5
190
-1,200
1,200
376.8
6,919.9
323
0.5
210
-400
-450
-500
-600
-700
-800
-900
BE
K.
ru
23
KCSC Series
At a glance
KCSC Series Stacker Crane Buffers
Model
Stroke
(mm)
S
Max Energy
/ Cycle
(kJ)
ET
Max Energy
/ Hour
(kJ/h)
ETC
Max Buffer
Force
(N)
Fb
Max Side
Load Angle
(°)
Weight
(kg)
KCSC215-100
100
47.8
1,804
560
2.0
87
-150
150
71.7
2,051
560
1.5
94
-200
200
95.5
2,290
560
1.5
101
-250
250
119.5
2,530
560
1.0
108
-300
300
143
2,775
560
0.5
114
400
191
3,264.5
560
0.5
127
500
239
4,234.3
560
0.5
158
600
287
4,740.7
560
0.5
171
700
334
5,209
560
0.5
185
800
382
5,698.6
560
0.5
198
1,000
478
6,687.4
560
0.5
225
1,200
573
8,007.5
438
0.5
242
KCSC275-100
100
77.8
2,445.5
915
2.0
164
-150
150
116.6
2,766
915
1.5
175
-200
200
155.5
3,053
915
1.5
186
-250
250
194.3
3,373
915
1.0
196
-300
300
233
3,767
915
0.5
207
-400
400
311
4,302.7
915
0.5
228
-500
500
389
4,934
915
0.5
250
-600
600
466.5
6,185.8
915
0.5
309
-750
750
583
7,117
915
0.5
341
-900
900
700
8,047.5
915
0.5
373
-1,050
1,050
816
8,970.6
915
0.5
405
-1,200
1,200
932.6
10,117
827
0.5
438
ww
-400
-500
-600
-700
-800
-1,000
-1,200
24
w.
22
BE
K.
ru
KES Series
Viscoelastic
Shock Absorber
KES series is designed and developed to use the unique hydrostatic
compression characteristics of special Visco-elastomers. KES has compact and
reliable design and high damping coefficient. KES has advantage to get energy
absorption and return spring function in a single unit without additional gas
or mechanical spring return mechanism. It is allowed to use various range of
temperature with stable damping force.
ww
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22
● Max. impact velocity : 5m/sec
● Temperature : -40 ℃ ~ 80℃
● Piston Rod : Hard Chrome( over 25µ)
● Body and Mount : Zinc, Ni plated,
●A
pplication : Automobile, Steel production, defense, Railway, Pulp, Paper, Marine, material
handling, etc
Characteristics of Spring
BE
K.
ru
Characteristics of Visco-elastomers
F0 : Initial Force , K : Strength of Spring, X : Displacement
C : Damping Constant , V : Impact Velocity , 0.1 ≤ α ≤ 0.4
25
KES Series
ww
w.
22
KESM type
KESE type
BE
KESS type
K.
ru
KESH type
Ordering Information
KES
M
116 – 50
RF
RF:REAR FLANGE
FF:FRONT FLANGE
LR: LOCK RING
Stroke
Body Dia
Model : M,E,S,H
Series
26
KES Series
KES Series Engineering Data
Dyn.
Reaction Force
(kN)
Impact
Velocity
(m/sec)
Stroke
(mm)
S
Max Energy
/ Cycle
(kJ)
ET
min
max
max
KESM25-12
12
0.1
6
11
2
0.3
KESM35-22
22
0.43
14
27
4
0.7
KESM40-22
22
0.43
14
27
5
0.8
KESM50-35
35
1.5
28
560
5
1.9
-35
35
1.5
28
60
5
2
KESM60-35
35
1.5
28
60
5
2
45
3.4
45
100
5
5
60
7
90
150
5
10.5
80
14
130
230
5
17
105
25
6
11
4
25
120
50
14
27
4
37
140
75
160
100
180
150
KESS50-150
150
6
KESS75-150
150
12
KESS75-200
200
12
KESS90-200
200
KESS90-270
Model
ww
KESM75-45
KESM90-60
KESM110-80
KESE116-105
KESE155-120
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22
Weight
(kg)
14
27
BE
4
45
28
60
4
73
28
60
4
117
25
50
3
4.2
66
100
3
11
42
78
3
11
25
95
150
3
20
270
25
66
112
3
25
KESS110-275
275
50
118
230
3
40
KESS110-400
400
50
75
150
3
40
KESS110-400
400
100
175
320
3
65
KESS110-600
600
100
85
230
3
65
KESS110-800
800
150
80
250
3
115
KESH130-400
400
220
190
310
3
63
KESH140-500
500
250
200
380
3
90
KESH140-400
400
220
380
685
3
100
KESH155-650
650
250
270
490
3
135
KESH175-850
850
400
330
600
3
218
KESH200-1050
1,050
600
370
740
3
295
KESH220-1200
1,200
800
430
860
3
420
KESH230-1300
1,300
1,000
500
1,000
3
470
KESE160-140
KESE180-160
KESE215-180
K.
ru
27
KRC Series
Rate Controls
ww
KRC is designed to control the speed of movement smoothly and safetly in
single and double acting with compression and tension. KRC has 12 step dial
so you could adjust the movement speed in accordance with the condition of
application.
w.
22
● Max. operation Cycle : 60 cycle/hour
● Max. Impact Velocity : 0.6 m/sec
● Temperature : Standard (-10~80℃)
Special (-40~120℃)
● Piston Rod : Hard Chrome( Over 25µ)
● Body , Mount : Black Epoxy paint coating or Ni Plated
Stroke
(mm)
s
Model
28
BE
Max. Propelling Force
(N)
Weight
(g)
Ext
Comp
3,000
3,000
310
2,600
380
2,100
450
1,400
530
800
600
9,000
2,000
9,000
2,500
9,000
3,000
KRC30-50
50
-100
100
-150
150
-200
200
3,000
-250
250
3,000
KRC50-50
50
9,000
-100
100
9,000
-150
150
9,000
-200
200
9,000
9,000
3,300
-250
250
9,000
9,000
3,600
KRC70-50
50
11,000
11,000
1,700
-100
100
11,000
11,000
2,100
-150
150
11,000
11,000
2,400
-200
200
11,000
11,000
2,700
-250
250
11,000
11,000
3,000
-300
300
11,000
11,000
3,300
-350
350
11,000
11,000
3,700
3,000
3,000
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KHC Series
Hydro Check
Properties
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● KHC enables precise speed and location control for the moving loads with various strokes.
● KHC is easy to install and control and enables precise control of moving speed with wide range adjustment dial (300°) to elongate
the lifespan of machine and tools. It is used for precise operation such as auto feed drilling , grinding and cutting.
● Piston Rod of KHC is plated with hard Cr. And the body is plated to prevent damage during operations.
● Accessories is easily fixed to KHC with Snap Ring and Mounting Block . It is also easy to be relocated.
●T
he oil in KHC is automatically filtered and operation speed is always controlled consistent for convenient operation under any
conditions..
● Application : Where speed control is requied. Drilling machine, Cutting machine, Safety Device, Boring machine, etc
● Temperature : Standard (-10~80℃)
Special (-40~120℃)
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Stroke
(mm)
s
Max
Load Angle
From Axis
(°)
KHC 24-15
15
1.2
-30
30
1
-60
60
0.5
-90
90
0.3
-120
120
0.2
KHC 31-40
40
1
-60
60
0.5
-100
100
0.3
1,655
KHC 38-60
60
0.5
2,490
Model
Speed Adjustment Range
Load Limits
(N)
100~2,500
100
0.3
Weight
(g)
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0.2~30
385
450
635
745
885
1,040
450~3,500
1,500~5,000
-100
Feed Rate Limits
(mm/sec)
0.2~30
1,245
0.3~30
3,310
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KG Series
KGP Series
KGL Series
Gas Springs
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KG Series (Push type)
KG is used to Nitrogen Gas and has general specific characteristics of
Spring, long stroke, small repulsive force, lifts big loads with small unit.
KG has various range of stroke and force. KOBA supply Customer Products for size,
stroke, material, etc.
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● Temperature : Standard (-10~60℃) Special (-30~100℃)
KGP Series (Pull type)
KGP is Pull type gas spring. It is widely used to operate mechanical covers with low
strength to open/close covers on machines/tanks that operate horizontally. KOBA supply
Customer Products for size, stroke, material, etc.
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● Temperature : Standard (-10~60℃) Special (-30~100℃)
KGL Series (Free Lock type)
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Free lock gas spring series has all merits of general Gas spring.
KGL Series have a free lock function that operators can decide a stroke at the voluntary
point where operators want to install. KOBA supply Customer Products for size, stroke,
material, etc.
● Temperature : Standard (-10~60℃) Special (-30~100℃)
30
Model
(Pull Type)
Stroke
(mm)
S
Max
Force
(N)
Model
(Push
Type)
Stroke
(mm)
S
Max
Force
(N)
Model
(Lock
Type)
Stroke
(mm)
S
KG 15
200
300
KGP 22
300
200
KGL 28-50
50
KG 18
250
500
KGP 30
350
900
-80
80
KG 22
300
1,000
KGP 35
400
1,200
-100
100
KG 30
350
2,000
KGP 40
500
1,500
-150
150
KG 35
400
3,000
KGP 50
700
2,000
-200
200
KG 40
500
4,000
KGP 75
1,000
3,000
KG 50
700
6,000
KG 75
1,000
12,000
KG 100
1,300
18,000
Force
(N)
100
~
1,300
Customer’s
KSA Series
Product
Customer’s Product
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KOBA always would like to be your reliable partner for the deceleration Technology to improve your equipment efficiency and life span.
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KOBA Co., Ltd.
12F, A block, Kabul Greatvalley, 60-5, Gasan-dong, Gumcheon-Gu, Seoul, Korea
Tel : +82-2-2105-5620 Fax : +82-2-3397-7811 E-mail : [email protected]
K.
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Design by AD.Partner / 2013. 9 / 02-598-2228

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