What kind of thread does model C-AC0806H match?

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.

Is the model C-AC0806L a product with a lid, is the lid connected with thread?

Buffer model C-AC0806L, the lid is press-fit type, not of thread connection, and cannot be disassembled by yourself.

Please note that the MISUMI India offices and warehouses will remain closed from Oct 31st to Nov 3rd due to the Diwali festival.
Please note that the MISUMI Pune office and warehouse will be closed on November 20th due to the state election.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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C-AC2030L-SC

Orifice Type Body Material Max. Collision Velocity Overall Length Equivalent Mass Max. Absorbed Energy (per Minute) type Stroke Nominal Mounting Screw [M] Max. Absorbed Energy Cap Impact Velocity Mating Accessories 1 - Stopper Nut Mating Accessories 2 - Mounting Flange CAD Days to Ship

Specification/Dimensions

Orifice Type
Single Orifice
Clear
Body Material
- Steel
  - STKM11A
  - 12L14
Clear
Max. Collision Velocity(m/s)
0.5

0.8

1

1.5

2

2.5

3

3.5

4
Clear
Overall Length(mm)
28.6

29.6

32

32.6

32.7

33.6

37.1

38.7

44

50

51

57

60

69.2

88.2

100.2

111

123

130

136

140

145.8

154.5

155.8

217

220.5

232.8

239

247

317

335.5
Clear
Equivalent Mass(kgf)
0.3

0.4

0.6

1

1.2

1.8

2

2.5

3

4

5

6.5

7

8

9

10

30

50

60

70

100

150

200

400

600

700

900

1000

1200

1500

1680

2400
Clear
Max. Absorbed Energy (per Minute)(J/min)
72

108

120

180

240

300

600

660

800

900

1000

1100

1500

2000

2080
Clear
type
- C-AC□□□□□
- C-AC□□□□□-N
Clear
Stroke(mm)
4

5

6

8

10

12

16

20

25

30

50

60

80
Clear
Nominal Mounting Screw [M]
4

6

8

10

12

14

20

25

36
Clear
Max. Absorbed Energy(J)
1.2

1.8

2.5

3

4

5

15

20

40

50

60

80

135

150

250
Clear
Cap
- Not Provided
- Provided
Clear
Impact Velocity(m/s)
- H (High Speed)
- L (Low Speed)
- M (Medium Speed)
Clear
Mating Accessories 1 - Stopper Nut
- Not Provided
- Provided
Clear
Mating Accessories 2 - Mounting Flange
- Not Provided
- Provided
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

8 Day(s) or Less

17 Day(s) or Less
Clear

Specify Alterations

Shock Absorbers, Preset(Fixed) Damping Type (C-AC2030L-SC)

Volume Discount

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Product Description

- 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

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	Maximum Collision Velocity	Operating environment temperature	Reference number of replacements
L For Low Speed	～1.0m/s	-5~70℃	800,000 cycles
M for Medium Speed	～2.0m/s
H for High Speed	～3.5m/s

■Product material

Mounting Screw Nominal (M)	Material		Surface Treatment
M4～M12	Body	12L14	Black oxide
M14～M36	Body	STKM11A
M4～M10	Cap	Nylon
M12～M36	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	○

Mounting Flange
Equipped with large-sized shock absorber, no need to thread the workpiece, directly fixed with a flange, easy installation

Specifications	Mounting Screw Nominal	M1	H	H1	H2	L	T	T1	Shock Absorber Type
Specifications	M	φ	mm	mm	mm	mm	mm	mm	Fix\ed	Heavy Load Absorption
Mounting Flange	M36×1.5	4－φ8.5	60	41	45	45	16	2	○	None
	M42×1.5	4－φ8.5	60	41	45	45	16	2	None	○
	2 1/2×12 UNF	4－φ10.5	89	70	55	55	16	2	None	○

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

Specification Table

Part Number			Cap	Stopper Nut	Mounting Flange	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.	Collision Velocity Type						Per Cycle (J)	Per Minute (J)			Cap provided	Cap not provided
C－AC	0404	L	- (Not provided) N (Provided)	Not Provided	Not Provided	M4×0.5	4	1.2	72	2.5	0.5	32.6	28.6	20.6	4	3	4	3	1.2	7
		M								1.2	1
		H								0.3	2
	0604	L				M6×0.75	4	1.8	108	4	0.5	33.6	29.6	21.1	4.5	3.3	4	4.6	1.8	8
		M								1.8	1
		H								0.4	2
	0805	L		- (Not provided) SC (Provided)		M8×0.75	5	1.2	72	2.5	0.5	37.1	32	22	5	4	5.1	6	1.8	11
		M								1.2	1
		H								0.3	2
	0806	L				M8×1.0	6	2.5	120	6.5	0.5	50	44	32	6	4	6	6.6	2.9	11
		M								2.5	1
		H								0.6	2
	1005	L				M10×1.0	5	3	180	7	0.8	38.7	32.7	21.7	6	4	6	8.6	3	12.9
		M								3	1.5
		H								1	3
	1008	L				M10×1.0	8	4	240	9	0.8	57	51	37	6	4	6	8.6	3	12.9
		M								4	1.5
		H								2	3
	1210	L				M12×1.0	10	5	300	30	0.8	69.2	60	44	6	4	9.2	10.3	3	14
		M								10	1.5
		H								5	3
	1412	L				M14×1.5	12	15	600	100	0.8	100.2	88.2	70.2	6	5	12	12	4	19
		M								50	1.5
		H								8	3
	1416	L				M14×1.5	16	20	660	150	0.8	123	111	89	6	5	12	12	4	19
		M								70	1.5
		H								10	3.0
	2020	L				M20×1.5	20	40	800	700	1	145.8	130	104	6	8	15.8	18	6	26
		M								200	2
		H								30	3.5
	2030	L				M20×1.5	30	50	900	700	1	155.8	140	104	6	8	15.8	18	6	26
		M								200	2
		H								30	3.5
	2050	L				M20×1.5	50	60	1100	1200	1	232.8	217	161	6	8	15.8	18	6	26
		M								400	2
		H								60	3.5
	2525	L				M25×1.5	25	80	1000	1000	1	154.5	136	106	5	10	18.5	22	8	32
		M								600	2.5
		H								200	4
	2550	L				M25×1.5	50	135	1500	1680	1	239	220.5	100	70.5	10	18.5	22	8	32
		M								900	2.5
		H								200	4
	2580	L				M25×1.5	80	150	2000	1200	1	335.5	317	100	137	10	18.5	22	8	32
		M								600	2.5
		H								150	4
	3660	L			- (Not provided) F (Provided)	M36×1.5	60	250	2080	2400	1	247	－	134	11	15	25	35	10	46
		M								1500	2.5
		H								400	4

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

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
C-AC2030L-SC

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Stroke (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
	₹ 2,602.00	1 Piece(s)	Available	8 Day(s)	10	30	20	50	-	-	-	-	-	-	Provided	L (Low Speed)	Provided	Not Provided

Basic Information

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

Please check the type/dimensions/specifications of the part C-AC2030L-SC in the Shock Absorbers, Preset(Fixed) Damping Type series.

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: 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.

Product variants

Part Number
C-AC0404L-N
C-AC0404M
C-AC0404M-N
C-AC2030M
C-AC2030M-N
C-AC2030M-N-SC

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Stroke (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
₹ 2,878.00	1 Piece(s)	Available	Same day Stock	10	4	4	1.2	Single Orifice	[Steel] 12L14	0.5	28.6	2.5	72	Not Provided	L (Low Speed)	Not Provided	Not Provided
₹ 2,878.00	1 Piece(s)	Available	Same day Stock	10	4	4	1.2	Single Orifice	[Steel] 12L14	1	32.6	1.2	72	Provided	M (Medium Speed)	Not Provided	Not Provided
₹ 2,878.00	1 Piece(s)	Available	Same day Stock	10	4	4	1.2	Single Orifice	[Steel] 12L14	1	28.6	1.2	72	Not Provided	M (Medium Speed)	Not Provided	Not Provided
₹ 3,379.00	1 Piece(s)	Available	Same day Stock	10	30	20	50	Single Orifice	[Steel] STKM11A	2	155.8	200	900	Provided	M (Medium Speed)	Not Provided	Not Provided
₹ 3,353.00	1 Piece(s)	Available	Same day Stock	10	30	20	50	Single Orifice	[Steel] STKM11A	2	140	200	900	Not Provided	M (Medium Speed)	Not Provided	Not Provided
₹ 2,568.00	1 Piece(s)	Available	8 Day(s)	10	30	20	50	-	-	-	-	-	-	Not Provided	M (Medium Speed)	Provided	Not Provided

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