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Shock Absorbers, Preset(Fixed) Damping Type (Part Numbers)

Shock Absorbers, Preset(Fixed) Damping Type
  • Volume Discount

- Shock Absorbers, Preset (Fixed) Damping Type from MISUMI.
- Simple structure and easy installation.
- Miniaturized design and strong space adaptability.
- Absorb energy smoothly and softly.
- Extend mechanical life, The service life of Shock Absorbers from MISUMI is up to 800,000 times.
- Max. Collision Velocity(m/s): 3.5 m/s
- Operating Environment Temperature: -5 to 70℃
- The products of M08 to M14 are equipped with two anti-loosening washers, and the mounting hole effectively prevents loosening without tapping.


Product Overview
Economy series Oil Buffer Fixed Type Simple structure, commonly used in the mechanism to absorb impact energy. The product is not adjustable. Different buffering characteristics can be obtained by changing the size of the internal overflow hole, the number and position of the overflow hole.
Depending on different collision velocities, there are high speed (H), medium speed (M),and low speed (L). There are single hole overflow type and multiple hole overflow type according to the change in the overflow area.

The advantages of using oil buffers:
1. Improve production efficiency: equipment can be operated at high frequency and high speed to improve production efficiency because the oil buffer can stop the impact object smoothly.
2. Extend mechanical life: the buffer can absorb the energy generated by the impact, greatly reduce the impact and vibration caused by the object to the machine, and avoid damage due to impact vibration.
3. Improve product quality: the buffer eliminates the shock caused by impact objects and the damaging impact, allowing the smooth operation of the machine and equipment, and improving the product quality.
4. Significantly reduce noise, and provide a quiet working environment.
5. Improve the safety of mechanical running.
Economic type Oil pressure buffer Fixed type
Product Feature
1. Simple structure and easy installation.
2. Miniaturized design and strong space adaptability.
3. Absorb energy smoothly and softly.
4. Abundant stock and fast delivery.
5. Long life with 800,000 times being used for reference.
6. The products of M08 to M14 are equipped with two anti-loosening washers, and the mounting hole effectively prevents loosening without tapping.

Specifications Overview
■ The products are divided into
C-AC*** (with cover type)
C-AC*****- N (without cover type)

■The products are divided into
Impact Speed TypeMaximum Collision VelocityOperating environment temperatureReference number of replacements
L For Low Speed~1.0m/s-5~70℃0.8 million times
M for Medium Speed~2.0m/s
H for High Speed~3.5m/s

Description of Models
Economic type Oil pressure buffer Fixed type Specifications Overview
Example of Use
Economic type Oil pressure buffer Fixed type Example of Use
Drawings of Examples of Use are for informational purposes only

Precautions
1. Do not exceed the specified locking torque value during installation as shown in the following table for details:
Coarse Outer Diameter (mm)M4ⅹ0.5M6ⅹ0.75M8ⅹ1.0M10ⅹ1.0M12ⅹ1.0M14ⅹ1.5M20ⅹ1.5M25ⅹ1.5M36ⅹ1.5M42ⅹ1.5
Tightening torque of nut (N.m)0.350.853.97.87.89.829.44998392

2. Pay attention to check whether the head circlip is off.
■ Overloaded buffer will cause abnormal increase in the internal pressure of the buffer tube, making the head circlip off, and internal parts may pop up and cause injury.
■ When the buffer with the head circlip is working, please keep your face and other parts away from it.

3. Please pay attention to the splash of the broken buffer head due to impact.
■ Overload use will cause damage to the head, resulting in injury.
■ It is recommended to install an anti-splashing cover.

4. Please pay attention to lateral misalignment load and lateral misalignment angle.
■ When the lateral misalignment load exceeds ±2.5 degrees, it will cause piston rod bending, bad reset, and internal lateral misalignment friction, resulting in performance degradation and even product breakage.
Please aim at the center line of the buffer piston rod for impact. (If the lateral misalignment angle is greater than ±2.5 degrees, please use the angular misalignment absorber (the range of lateral misalignment:± within 10 degrees)

5. Operating Temperature Range
■ Please use the buffer within the specified temperature range.
▪ Use outside the specified range will reduce the life of the seal packing and the pressure accumulating sponge, and cause the buffer to break.

6. Operating Environment Requirements
■ Please do not use it under medium or high pressure in a vacuum environment.
■ Keep the guide shaft clean, and avoid cutting powder, cutting fluid, water, etc. from being attached to the guide shaft, otherwise it will cause seal damage, oil leakage, poor buffer action, and buffer damage.
※ If you need to use it in the cutting fluid environment, please choose Misumi’s cutting fluid resistant buffer series products. See Misumi's official website.
 
7. The buffering oil inside the buffer will cause pollution to the environment, and can not be handled at will. Please follow the pollutant treatment method for treatment.

8. To prevent the buffer from increasing lateral load, the distance between the installation position of the buffer and the fulcrum should be equal to or greater than 6 times of the buffer stroke.
  And when the side load and the buffer center line form an angle of 5°, the absorbed energy is the maximum.
MISUMI Economic type Oil Buffers Fixed Type


Dimensional Drawing
Dimensional Drawing of Oil Buffers Dimensional Drawing of Anti-loosening Gaskets
Dimensional Drawing of MISUMI Economic type Oil Buffers Fixed Type Dimensional Drawing of MISUMI Economic type Oil Buffers Fixed Type
M04 to M14 buffers are equipped with 2 anti-loosening gaskets
Specification Table
■ Specification Table of Oil Buffers
Part NumberScrew Diameter
(M)
Stroke
(S)
Maximum energy absorbed (E)Maximum Equivalent Mass
(ME)
(kg)
 Maximum Collision Velocity
(M/S)
(L)(L1)L2Ttdd1B
(Both sides width)
Anti-loosening washer
TypeNo.SpeedPer time
(J)
Per minute
(J)
C-AC*****
(with buffering head)

C-AC*****-N
(without buffering head)
0404LM4 × 0.54.01.272.02.50.532.6
(28.6)
20.64.03.04.03.01.27.0Provided
M1.21.0
H0.32.0
0604LM6 × 0.754.01.8108.04.00.533.6
(29.6)
21.14.53.34.04.61.88.0Provided
M1.81.0
H0.42.0
0805LM8×0.755.01.2722.50.531.7
(32)
22545.161.811.0Provided
M1.21
H0.32
0806LM8 × 1.06.02.5120.06.50.550
(44)
32.06.04.06.06.62.911.0Provided
M2.51.0
H0.62.0
1005LM10 × 1.05.03.0180.07.00.838.7
(32.7)
21.76.04.06.08.63.012.9Provided
M3.01.5
H1.03.0
1008LM10 × 1.08.04.0240.09.00.857
(51)
37.06.04.06.08.63.012.9Provided
M4.01.5
H2.03.0
1210LM12 × 1.010.05.0300.030.00.869.2
(60)
44.06.04.09.210.33.014.0Provided
M10.01.5
H5.03.0
1412LM14 × 1.512.015.0600.0100.00.8100.2
(88.2)
70.26.05.012.012.04.019.0Provided
M50.01.5
H8.03.0
2020LM20 × 1.520.040.0800.0700.01.0145.8
(130)
104.06.08.015.818.06.026.0Not Provided
M200.02.0
H30.03.5
Dimension L with ( ) indicates C-AC****-N type (without buffering head). 
 
Impact SpeedMaximum Collision
Velocity
Operating environment
temperature
Reference
number of replacements
L For Low Speed~1.0m/s-5~70℃0.8 million times
M for Medium Speed~2.0m/s
H for High Speed~3.5m/s

■ Specifications Table for Anti-loosening Gaskets
Double-sided tooth disc gaskets
Part numberDdtH
M047.04.30.61.0
M0610.06.40.71.2
M0813.08.50.81.3
M1016.010.41.01.6
M1218.013.01.21.7
M1421.214.61.52.0

Part Number 

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Part Number
C-AC2020H
C-AC2020H-N
C-AC2020H-N-SC
C-AC2020H-SC
C-AC2020L
C-AC2020L-N
C-AC2020L-N-SC
C-AC2020L-SC
C-AC2020M
C-AC2020M-N
C-AC2020M-N-SC
C-AC2020M-SC
C-AC2030H
C-AC2030H-N
C-AC2030H-N-SC
C-AC2030H-SC
C-AC2030L
C-AC2030L-N
C-AC2030L-N-SC
C-AC2030L-SC
C-AC2030M
C-AC2030M-N
C-AC2030M-N-SC
C-AC2030M-SC
C-AC2050H
C-AC2050H-N
C-AC2050H-N-SC
C-AC2050H-SC
C-AC2050L
C-AC2050L-N
C-AC2050L-N-SC
C-AC2050L-SC
C-AC2050M
C-AC2050M-N
C-AC2050M-N-SC
C-AC2050M-SC
C-AC2525H
C-AC2525H-N
C-AC2525H-N-SC
C-AC2525H-SC
C-AC2525L
C-AC2525L-N
C-AC2525L-N-SC
C-AC2525L-SC
C-AC2525M
C-AC2525M-N
C-AC2525M-N-SC
C-AC2525M-SC
C-AC2550H
C-AC2550H-N
C-AC2550H-N-SC
C-AC2550H-SC
C-AC2550L
C-AC2550L-N
C-AC2550L-N-SC
C-AC2550L-SC
C-AC2550M
C-AC2550M-N
C-AC2550M-N-SC
C-AC2550M-SC
C-AC2580H
C-AC2580H-N
C-AC2580H-N-SC
C-AC2580H-SC
C-AC2580L
C-AC2580L-N
C-AC2580L-N-SC
C-AC2580L-SC
C-AC2580M
C-AC2580M-N
C-AC2580M-N-SC
C-AC2580M-SC
C-AC3660H
C-AC3660H-F
C-AC3660H-SC
C-AC3660H-SC-F
C-AC3660L
C-AC3660L-F
C-AC3660L-SC
C-AC3660L-SC-F
C-AC3660M
C-AC3660M-F
C-AC3660M-SC
C-AC3660M-SC-F
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipStroke
(mm)
Nominal Mounting Screw [M] Max. Absorbed Energy
(J)
Orifice Type Body Material Max. Collision Velocity
(m/s)
Overall Length
(mm)
Equivalent Mass
(kgf)
Max. Absorbed Energy (per Minute)
(J/min)
Cap Impact Velocity
(m/s)
Mating Accessories 1 - Stopper Nut Mating Accessories 2 - Mounting Flange

SGD 30.86

1 Piece(s)Available Same day 202040Single Orifice[Steel] STKM11A3.5145.830800ProvidedH (High Speed)Not ProvidedNot Provided

SGD 30.84

1 Piece(s)Available Same day 202040Single Orifice[Steel] STKM11A3.513030800Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------ProvidedH (High Speed)ProvidedNot Provided

SGD 30.86

1 Piece(s)Available Same day 202040Single Orifice[Steel] STKM11A1145.8700800ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 30.84

1 Piece(s)Available Same day 202040Single Orifice[Steel] STKM11A1130700800Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------ProvidedL (Low Speed)ProvidedNot Provided

SGD 30.86

1 Piece(s)Available Same day 202040Single Orifice[Steel] STKM11A2145.8200800ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 30.84

1 Piece(s)Available 5 Day(s) 202040Single Orifice[Steel] STKM11A2130200800Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 41.20

1 Piece(s)Available 5 Day(s) 202040------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 29.61

1 Piece(s)Available 5 Day(s) 302050Single Orifice[Steel] STKM11A3.5155.830900ProvidedH (High Speed)Not ProvidedNot Provided

SGD 29.60

1 Piece(s)Available Same day 302050Single Orifice[Steel] STKM11A3.514030900Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------ProvidedH (High Speed)ProvidedNot Provided

SGD 29.61

1 Piece(s)Available 5 Day(s) 302050Single Orifice[Steel] STKM11A1155.8700900ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 29.60

1 Piece(s)Available 5 Day(s) 302050Single Orifice[Steel] STKM11A1140700900Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------ProvidedL (Low Speed)ProvidedNot Provided

SGD 29.61

1 Piece(s)Available Same day 302050Single Orifice[Steel] STKM11A2155.8200900ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 29.60

1 Piece(s)Available 5 Day(s) 302050Single Orifice[Steel] STKM11A2140200900Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 40.60

1 Piece(s)Available 5 Day(s) 302050------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 36.35

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A3.5232.8601100ProvidedH (High Speed)Not ProvidedNot Provided

SGD 36.34

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A3.5217601100Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------ProvidedH (High Speed)ProvidedNot Provided

SGD 36.35

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A1232.812001100ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 36.34

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A121712001100Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------ProvidedL (Low Speed)ProvidedNot Provided

SGD 36.35

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A2232.84001100ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 36.34

1 Piece(s)Available 5 Day(s) 502060Single Orifice[Steel] STKM11A22174001100Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 48.70

1 Piece(s)Available 5 Day(s) 502060------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 36.36

1 Piece(s)Available 5 Day(s) 252580Single Orifice[Steel] STKM11A4154.52001000ProvidedH (High Speed)Not ProvidedNot Provided

SGD 36.35

1 Piece(s)Available 5 Day(s) 252580Single Orifice[Steel] STKM11A41362001000Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------ProvidedH (High Speed)ProvidedNot Provided

SGD 36.36

1 Piece(s)Available 5 Day(s) 252580Single Orifice[Steel] STKM11A1154.510001000ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 36.35

1 Piece(s)Available Same day 252580Single Orifice[Steel] STKM11A113610001000Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------ProvidedL (Low Speed)ProvidedNot Provided

SGD 36.36

1 Piece(s)Available 5 Day(s) 252580Single Orifice[Steel] STKM11A2.5154.56001000ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 36.35

1 Piece(s)Available 5 Day(s) 252580Single Orifice[Steel] STKM11A2.51366001000Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 52.00

1 Piece(s)Available 5 Day(s) 252580------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 46.73

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A42392001500ProvidedH (High Speed)Not ProvidedNot Provided

SGD 46.72

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A4220.52001500Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------ProvidedH (High Speed)ProvidedNot Provided

SGD 46.73

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A123916801500ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 46.72

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A1220.516801500Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------ProvidedL (Low Speed)ProvidedNot Provided

SGD 46.73

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A2.52399001500ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 46.72

1 Piece(s)Available 5 Day(s) 5025135Single Orifice[Steel] STKM11A2.5220.59001500Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 64.40

1 Piece(s)Available 5 Day(s) 5025135------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 72.50

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A4335.51502000ProvidedH (High Speed)Not ProvidedNot Provided

SGD 72.49

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A43171502000Not ProvidedH (High Speed)Not ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------Not ProvidedH (High Speed)ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------ProvidedH (High Speed)ProvidedNot Provided

SGD 72.50

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A1335.512002000ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 72.49

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A131712002000Not ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------Not ProvidedL (Low Speed)ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------ProvidedL (Low Speed)ProvidedNot Provided

SGD 72.50

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A2.5335.56002000ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 72.49

1 Piece(s)Available 5 Day(s) 8025150Single Orifice[Steel] STKM11A2.53176002000Not ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------Not ProvidedM (Medium Speed)ProvidedNot Provided

SGD 95.60

1 Piece(s)Available 5 Day(s) 8025150------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 72.85

1 Piece(s)Available Same day 6036250Single Orifice[Steel] STKM11A42474002080ProvidedH (High Speed)Not ProvidedNot Provided

SGD 112.50

1 Piece(s)Available 5 Day(s) 6036250------ProvidedH (High Speed)Not ProvidedProvided

SGD 102.60

1 Piece(s)Available 5 Day(s) 6036250------ProvidedH (High Speed)ProvidedNot Provided

SGD 127.40

1 Piece(s)Available 5 Day(s) 6036250------ProvidedH (High Speed)ProvidedProvided

SGD 72.85

1 Piece(s)Available 5 Day(s) 6036250Single Orifice[Steel] STKM11A124724002080ProvidedL (Low Speed)Not ProvidedNot Provided

SGD 112.50

1 Piece(s)Available 5 Day(s) 6036250------ProvidedL (Low Speed)Not ProvidedProvided

SGD 102.60

1 Piece(s)Available 5 Day(s) 6036250------ProvidedL (Low Speed)ProvidedNot Provided

SGD 127.40

1 Piece(s)Available 5 Day(s) 6036250------ProvidedL (Low Speed)ProvidedProvided

SGD 72.85

1 Piece(s)Available 5 Day(s) 6036250Single Orifice[Steel] STKM11A2.524715002080ProvidedM (Medium Speed)Not ProvidedNot Provided

SGD 112.50

1 Piece(s)Available 5 Day(s) 6036250------ProvidedM (Medium Speed)Not ProvidedProvided

SGD 102.60

1 Piece(s)Available 5 Day(s) 6036250------ProvidedM (Medium Speed)ProvidedNot Provided

SGD 127.40

1 Piece(s)Available 5 Day(s) 6036250------ProvidedM (Medium Speed)ProvidedProvided

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Basic Information

Main Body, Related Components Main Body Structure Fixed Type Operating Environment Standard
Operating Temperature Range(°C) -5::70

Frequently asked question (FAQ)

Question: What kind of thread does model C-AC0806H match?
Answer: Buffer model C-AC0806H, product with M8 thread and 6 mm stroke, where the thread type is M8X1.0, please note that the product is fine thread.
Question: Is the model C-AC0806L a product with a lid, is the lid connected with thread?
Answer: Buffer model C-AC0806L, the lid is press-fit type, not of thread connection, and cannot be disassembled by yourself.

Tech Support