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Shock Absorbers, Preset(Fixed) Damping, Two-Stage Absoption Type (C-AC2525S-SC)

Volume Discount

MiSUMi Economy

- Shock Absorbers, Two-Stage Absoption Typefrom 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): 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.

RoHS

Part Number

Configured Part Number is shown.

C-AC2525S-SC

Drawing/Specifications
3D Preview
Part Numbers

Economy Shock Absorbers

Two-Stage AbsorptionCompact DesignNoise Reduction

- Shock absorbers feature a unique two-stage absorption system that provides smooth and controlled energy dissipation.

- With a miniaturized design, MISUMI's shock absorbers can be easily integrated into various equipment without compromising space. This flexibility makes them suitable for a wide range of applications.

- Built to withstand a high number of cycles.

- By absorbing impact energy, MISUMI's shock absorbers significantly reduce noise levels, creating a quieter working environment.

- Capable of handling high maximum collision velocities.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview

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 internaloverflow 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 Fixed Type:
1. Improve production efficiency: equipment can be operated at high frequency and high speed to improve production efficiency because the Fixed Type 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.
Economical hydraulic shock absorber fixed type

Economical hydraulic shock absorber fixed type

Dimensional Drawing

Specification Overview

■Product features
·Simple structure, strong stability
·Soft cushioning effect throughout the entire stroke

■ The products Fixed Type are divided into

Collision Velocity Type	Maximum Collision Velocity	Operating environment temperature	Reference number of replacements
Two-stage	～5.0m/s	-5~70℃	800,000 cycles

■Product material

Mounting Screw Nominal (M)	Material		Surface Treatment
M8～M12	Body	12L14	Black oxide
M14～M27	Body	STKM11A
M8	Cap	Nylon
M10～M27	Cap	Urethane

Stopper Nut
It can be used with both cap and capless type of Shock Absorbers. Setting buffer improves the service life of the Absorber.

Specification	Mounting Screw Nominal	S	H	L	Shock Absorber Type
Specification	M	mm	mm	mm	Fixed	Two-stage	Adjusting	Heavy Load Absorption
Stopper Nut	M8×1.0	11	12.6	14	○	○	None	None
	M10×1.0	12.7	14.5	16	○	○	None	None
	M12×1.0	14	16	20	○	○	○	None
	M14×1.5	19	21.6	27	○	○	○	None
	M16×1.5	19	21.6	27	None	None	○	None
	M20×1.5	26	29.7	35	○	○	○	None
	M25×1.5	32	36.7	45	○	○	○	None
	M25×1.5	32	36.7	65	○	None	○	None
	M27×1.5	32	36.7	45	None	○	○	None
	M36×1.5	46	53	80	○	None	○	None
	M42×1.5	50	57.7	100	None	None	None	○

※ The stopper nut must be ordered together with the shock absorber, and cannot be ordered separately.

Specification Table

Part Number		Cap	Stopper Nut	Mounting Screw Nominal (M)	Stroke (S)	Max. Energy Absorbed (E')		Max. Equivalent Mass (me') (kg)	Max.Collision Velocity (M/S)	Total Length (L)		L₁	L₂	T	t	d	d₁	B (Both Surface Width)
Type	No.	Cap	Stopper Nut	Mounting Screw Nominal (M)	Stroke (S)	Per Cycle (J)	Per Minute (J)	Max. Equivalent Mass (me') (kg)	Max.Collision Velocity (M/S)	Cap provided	Cap not provided	L₁	L₂	T	t	d	d₁	B (Both Surface Width)
C－AC	0806S	None (Provided) N (Not Provided)	None (Not Provided) SC (Provided)	M8×1.0	6.0	3.0	116.0	6.0	2.5	52.0	46.0	34.5	5.5	4.0	6.0	6.0	2.9	11.0
	1007S			M10×1.0	7.0	6.0	206.0	12.0	3.5	63.0	54.5	42.5	5.0	4.0	8.5	8.5	3.0	12.9
	1210S			M12×1.0	10.0	12.0	341.0	25.0	5.0	71.5	62.5	46.5	6.0	4.0	9.0	10.5	3.0	14.0
	1412S			M14×1.5	12.0	20.0	550.0	40.0	5.0	91.5	79.5	62.5	5.0	5.0	12.0	11.8	4.0	19.0
	2015S			M20×1.5	15.0	59.0	635.0	120.0	5.0	103.8	88.0	66.0	7.0	8.0	15.8	18.0	6.0	26.0
	2525S			M25×1.5	25.0	105.0	950.0	220.0	5.0	141.5	123.0	90.0	8.0	10.0	18.5	22.0	8.0	32.0
	2725S			M27×1.5	25.1	147.0	1200.0	270.0	5.0	141.5	123.0	90.0	8.0	10.0	18.5	22.0	8.0	32.0

M4 to M14 shock absorbers are equipped with 2 anti-loosening washer.

Product Features

1. Fixed Type Simple structure and easy installation.
2. Fixed Type miniaturized design and strong space adaptability.
3. Fixed Type absorb energy smoothly and softly.
4. Fixed Type, Abundant stock and fast delivery.
5. Fixed Type has long life with 800,000 times being used for reference.
6. The products Fixed Type of M08 to M14 are equipped with two anti-loosening washers, and the mounting hole effectively prevents loosening without tapping.
Shock Absorbers, Two-Way Type - Feature Drawing

Shock Absorbers, Two-Way Type - Feature Drawing

Precautions

1. Fixed Type, Do not exceed the specified locking torque value during installation as shown in the following table for details:

Coarse Outer Diameter (mm)	M4ⅹ0.5	M6ⅹ0.75	M8ⅹ1.0	M10ⅹ1.0	M12ⅹ1.0	M14ⅹ1.5	M20ⅹ1.5	M25ⅹ1.5	M36ⅹ1.5	M42ⅹ1.5
Tightening torque of nut (N.m)	0.35	0.85	3.9	7.8	7.8	9.8	29.4	49	98	392

2. Fixed Type, 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. Fixed Type, 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. Fixed Type, 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. Fixed Type, 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. Fixed Type, 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. Fixed Type, 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. Fixed Type, 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

Example of Use

Drawings of Examples of Use are for informational purposes only

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
C-AC2525S-SC

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Nominal Mounting Screw [M]	Overall Length (mm)	Stroke (mm)	Max. Absorbed Energy (J)	Body Material	Max. Collision Velocity (m/s)	Equivalent Mass (kgf)	Max. Absorbed Energy (per Minute) (J/min)	Cap	Mating Accessories 1 - Stopper Nut
	MYR 170.14	1 Piece(s)	Available	6 Day(s)	25	-	25	105	-	-	-	-	Provided	Provided

Basic Information

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

Please check the type/dimensions/specifications of the part C-AC2525S-SC in the Shock Absorbers, Preset(Fixed) Damping, Two-Stage Absoption Type series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Overall Length(mm)
46

52

54.5

62.5

63

71.5

79.5

88

91.5

103.8

123

141.5
Clear
Body Material
- Steel
  - STKM12C
  - 12L14
Clear
Max. Collision Velocity(m/s)
2.5

3.5

5
Clear
Equivalent Mass(kgf)
6

12

25

40

120

220

270
Clear
Max. Absorbed Energy (per Minute)(J/min)
116

206

341

550

635

950

1200
Clear
type
- C-AC□□□□S
- C-AC□□□□S-N
Clear
Nominal Mounting Screw [M]
8

10

12

14

20

25

27
Clear
Stroke(mm)
6

7

10

12

15

25
Clear
Max. Absorbed Energy(J)
3

6

12

20

59

105

147
Clear
Cap
- Not Provided
- Provided
Clear
Mating Accessories 1 - Stopper Nut
- Not Provided
- Provided
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

6 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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: Regarding the type with a cap, is the cap screwed in? Can it be removed?: Answer: The cap is press-fitted, not screwed in, and cannot be removed.

Products like this...

Part Number
C-AC0806S-SC
C-AC1007S
C-AC1007S-N
C-AC2725S
C-AC2725S-N
C-AC2725S-N-SC

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Nominal Mounting Screw [M]	Overall Length (mm)	Stroke (mm)	Max. Absorbed Energy (J)	Body Material	Max. Collision Velocity (m/s)	Equivalent Mass (kgf)	Max. Absorbed Energy (per Minute) (J/min)	Cap	Mating Accessories 1 - Stopper Nut
MYR 81.96	1 Piece(s)	Available	6 Day(s)	8	-	6	3	-	-	-	-	Provided	Provided
MYR 65.74	1 Piece(s)	Available	1 Day(s)	10	63	7	6	[Steel] 12L14	3.5	12	206	Provided	Not Provided
MYR 65.74	1 Piece(s)	Available	1 Day(s)	10	54.5	7	6	[Steel] 12L14	3.5	12	206	Not Provided	Not Provided
MYR 134.04	1 Piece(s)	Available	1 Day(s)	27	141.5	25	147	[Steel] STKM12C	5	270	1200	Provided	Not Provided
MYR 134.04	1 Piece(s)	Available	1 Day(s)	27	123	25	147	[Steel] STKM12C	5	270	1200	Not Provided	Not Provided
MYR 178.60	1 Piece(s)	Available	6 Day(s)	27	-	25	147	-	-	-	-	Not Provided	Provided

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Shock Absorbers, Preset(Fixed) Damping, Two-Stage Absoption Type (C-AC2525S-SC)

Economy Shock Absorbers

Part Number

Basic Information

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Specification/Dimensions

Overall Length(mm)

Body Material

Max. Collision Velocity(m/s)

Equivalent Mass(kgf)

Max. Absorbed Energy (per Minute)(J/min)

type

Nominal Mounting Screw [M]

Stroke(mm)

Max. Absorbed Energy(J)

Cap

Mating Accessories 1 - Stopper Nut

CAD

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

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