# AC Series Self-Compensating Hydraulic Shock Absorber

Date: 2026-10-30
Categories: Pneumatic Vibrator
URL: https://homipneu.com/ac-series-self-compensating-hydraulic-shock-absorber.html

## Product Summary

HOMIPNEU AC series self-compensating hydraulic shock absorbers provide controlled deceleration for moving machine components. Multiple strokes, threaded body sizes and performance variants support selection for assembly, packaging and material handling equipment. Choose each model by impact energy, effective mass and cycle rate. OEM & ODM support is available.

### Specifications

The HOMIPNEU AC series provides hydraulic impact absorption for moving machine components. Select the model according to energy per cycle, hourly energy load, effective mass, impact velocity and installation dimensions.

Parameter
Specification

Product Name
AC Series Self-Compensating Hydraulic Shock Absorber

Brand
HOMIPNEU

Product Type
Industrial hydraulic shock absorber

Damping Type
Self-compensating

Function
Impact energy absorption and controlled deceleration

Series Listed
AC

AC Models Listed
AC0806, AC1005, AC1008, AC1210, AC1412, AC1416, AC1425, AC2020, AC2030, AC2050, AC2525, AC2540, AC2550, AC2580, AC3625, AC3660

ACD Models Listed
ACD2030, ACD2035, ACD2050

Stroke Range
5–80 mm, depending on model

Thread Sizes Shown in Dimension Tables
M8 × 1.0, M10 × 1.0, M12 × 1.0, M14 × 1.5, M20 × 1.5, M25 × 1.5, M36 × 1.5

Operating Temperature
−10°C to +80°C

Cap Options
With-cap and without-cap versions listed for selected models

Without-Cap Identification
-N suffix on the models identified in the dimension tables

Performance Variants
-1, -2 and -3 versions listed for selected models

Installation
Threaded mounting; confirm dimensions for the selected model

Selection Requirements
Check stroke, effective mass, impact velocity, energy per cycle and energy per hour

 

Model
Stroke (mm)
Max. Energy Absorption Nm (Et)
Hourly Energy Absorption Nm (EtC)
Max. Effective Mass kg (me)
Max. Impact Velocity m/s (v)
Working Temperature (°C)
Weight (g)

AC0806
6
2
7200
0.5–6.0
0.5–2.0
-10 to +80
11

AC1005
5
3
10800
1.0–7.0
0.8–3.0
-10 to +80
14

AC1008
8
4
15200
2.0–9.0
0.8–3.0
-10 to +80
20

AC1210
10
5
17640
5.0–30
0.8–3.0
-10 to +80
31.5

AC1412
12
15
30000
8.0–100
0.8–3.0
-10 to +80
80

AC1416
16
20
35000
10–150
0.8–3.0
-10 to +80
90

AC1425
25
25
40000
12–160
0.8–3.0
-10 to +80
95

AC2020
20
40
40000
30–700
1.0–3.5
-10 to +80
215

AC2030
30
50
48000
30–700
1.0–3.5
-10 to +80
220

AC2050
50
60
63000
60–1200
1.0–3.5
-10 to +80
300

AC2525
25
80
60000
200–1500
1.0–4.0
-10 to +80
330

AC2540
40
120
80000
300–2000
1.0–4.0
-10 to +80
430

AC2550
50
98
95000
15–160
1.0–4.0
-10 to +80
435

AC2580
80
150
125000
20–200
1.0–4.0
-10 to +80
535

AC3625
25
150
120000
300–1000
1.0–4.0
-10 to +80
900

AC3660
50
250
120000
400–2400
1.0–4.0
-10 to +80
1030

ACD2030
30
45
55000
40–900
1.0–3.5
-10 to +80
320

ACD2035
35
52
63000
40–650
1.0–3.5
-10 to +80
350

ACD2050
50
60
68000
60–480
1.0–3.5
-10 to +80
470

### Applications

![AC Series Self-Compensating Hydraulic Shock Absorber Applications](https://homipneu.com/wp-content/uploads/2026/10/20261030000649996229-900x300.webp)

### Model Selection and Dimensions

Select the exact model and performance variant before confirming installation dimensions. Models with the same base designation may have different effective mass and impact velocity ratings.

For the models identified in the dimension tables, the standard designation indicates the version with a cap, while the corresponding -N designation indicates the version without a cap.

All dimensions are in millimeters. Refer to the matching dimension drawing and model table for thread size, overall length, mounting dimensions and cap dimensions.

### Model Selection and Dimensions — AC08, AC10 and AC12 Models ![AC0806 AC1005 AC1008 AC1210 shock absorber dimension drawing](https://homipneu.com/wp-content/uploads/2026/10/20261029225930179933-900x764.webp)

Model Without Cap
Model With Cap
MM
L (mm)
B (mm)
C (mm)
D (mm)
A (mm)
E (mm)
F (mm)
H (mm)
I (mm)
J (mm)

AC0806-N
AC0806
M8 × 1.0
44
38
33
2.8
50
6
6.6
11
3
12.6

AC1005-N
AC1005
M10 × 1.0
32.7
27.7
22.9
3
38.7
6
8.6
12.7
3
14.5

AC1008-N
AC1008
M10 × 1.0
51
43
38
3
57
6
8.6
12.7
3
14.5

AC1210-N
AC1210
M12 × 1.0
60
50
45.5
3
69.5
9.5
10.3
14
4
16

 

Model
Stroke (mm)
Max. Energy Per Cycle (Nm)
Max. Energy Per Hour (Nm)
Max. Effective Weight (kg)
Max. Impact Speed (m/s)
Working Temperature (°C)

AC0806-1
6
2
8000
0.5
2
-10 to +80

AC0806-2
6
2
8000
2.0
1.0
-10 to +80

AC0806-3
6
2
8000
6.0
0.5
-10 to +80

AC1005-1
5
3
10800
1
3
-10 to +80

AC1005-2
5
3
10800
3
1.5
-10 to +80

AC1005-3
5
3
10800
7
0.8
-10 to +80

AC1008-1
8
4
15000
2
3
-10 to +80

AC1008-2
8
4
15000
4
1.5
-10 to +80

AC1008-3
8
4
15000
9
0.8
-10 to +80

AC1210-1
10
5
17800
5
3
-10 to +80

AC1210-2
10
5
17800
10
1.5
-10 to +80

AC1210-3
10
5
17800
30
0.8
-10 to +80

### Model Selection and Dimensions — AC14, AC20 and Selected AC25 Models

![AC1412 AC1416 AC1425 AC2020 AC2030 shock absorber dimensions](https://homipneu.com/wp-content/uploads/2026/10/20261029231919366058-900x648.webp)

Model Without Cap
Model With Cap
MM
L (mm)
B (mm)
C (mm)
D (mm)
A (mm)
E (mm)
F (mm)
H (mm)
I (mm)
J (mm)

AC1412-N
AC1412
M14 × 1.5
88
76
67
4
102.3
14.3
12
19
5
21.6

AC1416-N
AC1416
M14 × 1.5
111
95
86
4
125.3
14.3
12
19
5
21.6

AC1425-N
AC1425
M14 × 1.5
135
110.2
101
4
149.3
14.3
12.5
19
5
21.6

AC2020-N
AC2020
M20 × 1.5
130
110
101
6
147.5
17.5
18
26
8
29.7

AC2030-N
AC2030
M20 × 1.5
140
110
101
6
157.5
17.5
18
26
8
29.7

AC2050-N
AC2050
M20 × 1.5
217
167
158
6
234.5
17.5
18
26
8
29.7

AC2525-N
AC2525
M25 × 1.5
136
111
101
8
156
20
22
32
10
36.7

 

Model
Stroke (mm)
Max. Energy Per Cycle (Nm)
Max. Energy Per Hour (Nm)
Max. Effective Weight (kg)
Max. Impact Speed (m/s)
Working Temperature (°C)

AC1412-1
12
15
27000
3.0–12
3.5
-10 to +80

AC1412-2
12
15
27000
9.0–40
2
-10 to +80

AC1412-3
12
15
27000
36.0–80.0
1
-10 to +80

AC1416-1
16
20
30000
3.2–13
3.5
-10 to +80

AC1416-2
16
20
30000
10.0–40
2
-10 to +80

AC1416-3
16
20
30000
40–180
1
-10 to +80

AC1425-1
25
25
36000
4.1–20
3.5
-10 to +80

AC1425-2
25
25
36000
12.5–60
2
-10 to +80

AC1425-3
25
25
36000
50–200
1
-10 to +80

AC2020-1
20
40
40000
30
3.6
-10 to +80

AC2020-2
20
40
40000
200
2
-10 to +80

AC2020-3
20
40
40000
700
1
-10 to +80

AC2030-1
30
50
48000
30
3.6
-10 to +80

AC2030-2
30
50
48000
200
2
-10 to +80

AC2030-3
30
50
48000
700
1
-10 to +80

AC2050-1
50
60
63000
60
3.6
-10 to +80

AC2050-2
50
60
63000
400
2
-10 to +80

AC2050-3
50
60
63000
1200
1
-10 to +80

AC2525-1
25
80
58000
200
4
-10 to +80

AC2525-2
25
80
58000
800
2.5
-10 to +80

AC2525-3
25
80
58000
1500
1
-10 to +80

### Model Selection and Dimensions — AC2550 and AC2580

![AC2550 and AC2580 hydraulic shock absorber dimension drawing](https://homipneu.com/wp-content/uploads/2026/10/20261029230922884101-900x535.webp)

Model
MM
A (mm)
B (mm)
C (mm)
D (mm)
E (mm)
F (mm)
H (mm)
I (mm)
J (mm)

AC2550
M25 × 1.5
241.2
170.5
100
8
20.7
22
32
10
36.7

AC2580
M25 × 1.5
337.7
237
100
8
20.7
22
32
10
36.7

 

Model
Stroke (mm)
Max. Energy Per Cycle (Nm)
Max. Energy Per Hour (Nm)
Max. Effective Weight (kg)
Max. Impact Speed (m/s)
Working Temperature (°C)

AC2550-1
50
120
95000
15
4
-10 to +80

AC2550-2
50
120
95000
40
2.5
-10 to +80

AC2550-3
50
120
95000
160
1
-10 to +80

AC2580-1
80
180
120000
20
4
-10 to +80

AC2580-2
80
180
120000
50
2.5
-10 to +80

AC2580-3
80
180
120000
200
1
-10 to +80

### Model Selection and Dimensions — AC2540 and AC3660

![AC2540 and AC3660 industrial shock absorber dimensions](https://homipneu.com/wp-content/uploads/2026/10/20261029230949886310-900x619.webp)

Model
MM
A (mm)
B (mm)
C (mm)
D (mm)
E (mm)
F (mm)
G (mm)
H (mm)
I (mm)
J (mm)

AC2540
M25 × 1.5
213
137
117
8
36
22
10
32
10
36.7

AC3660
M36 × 1.5
247.8
162
134
10
25.8
35
17
46
15
53

 

Model
Stroke (mm)
Max. Energy Per Cycle (Nm)
Max. Energy Per Hour (Nm)
Max. Effective Weight (kg)
Max. Impact Speed (m/s)
Working Temperature (°C)

AC2540-1
40
110
85000
300
4
-10 to +80

AC2540-2
40
110
85000
1000
2.5
-10 to +80

AC2540-3
40
110
85000
1800
1
-10 to +80

AC3660-1
60
250
120000
400
4
-10 to +80

AC3660-2
60
250
120000
1500
2.5
-10 to +80

AC3660-3
60
250
120000
2400
1
-10 to +80

### Product Features

**Self-Compensating Hydraulic Damping**

The AC series absorbs impact energy through hydraulic resistance, helping moving components decelerate over the available stroke. Self-compensating operation accommodates a defined range of impact conditions within the selected model’s ratings.

**Reduced End-of-Travel Impact**

Installed at a suitable stopping point, the shock absorber helps reduce the impact transmitted to machine stops, fixtures and supporting structures.

**Multiple Stroke Options**

The series includes strokes from 5 to 80 mm for different stopping distances and installation spaces. Available energy capacity depends on the specific model and performance variant.

**Threaded Body for Installation**

External mounting threads allow installation in suitable brackets or mounting holes. Multiple thread sizes support integration into compact mechanisms and larger automation assemblies.

**Model Variants for Different Operating Conditions**

Selected models offer -1, -2 and -3 variants with different effective mass and impact velocity ratings. This allows selection around the actual motion conditions of the application.

**Cap and Without-Cap Options**

Selected models are listed with and without a cap, providing options for different contact arrangements and installation requirements.

### Applications

**Automated Assembly Equipment**

Helps cushion moving slides, transfer units and positioning mechanisms as they approach a defined stopping point.

**Pneumatic Cylinder Mechanisms**

Provides additional external impact absorption where required by the moving load and machine design. Selection should account for cylinder thrust acting during deceleration.

**Packaging Machinery**

Suitable for evaluating impact control on reciprocating mechanisms, transfer devices and indexing assemblies operating within the selected model’s ratings.

**Material Handling Systems**

Supports controlled stopping of moving carriers, workpiece transfer mechanisms and handling fixtures.

**Robotic Peripheral Equipment**

Can be integrated into mechanical stops and auxiliary handling equipment where linear impact absorption is required.

**Production Fixtures and Special-Purpose Machines**

Provides a compact hydraulic damping option for repetitive motion in assembly fixtures and dedicated automation equipment.

### Why Choose HOMIPNEU

**Multiple Models in One Product Range**

The AC series covers a range of body sizes, strokes and performance variants, helping buyers compare options for different machine requirements.

**Selection Based on Operating Conditions**

Provide the moving mass, impact speed, cycle rate, driving force and available installation space so the proposed model can be checked against the application.

**Dimension Information for Integration**

Model-specific drawings and dimension tables help engineers review mounting threads, overall lengths and available installation clearances.

**Coordinated Pneumatic Component Sourcing**

HOMIPNEU also supplies pneumatic cylinders, valves, fittings and tubing for buyers sourcing components for automation equipment.

### FAQ

**What is a self-compensating hydraulic shock absorber?**

A self-compensating hydraulic shock absorber uses hydraulic resistance to absorb impact energy and decelerate a moving load. It operates within a specified range of effective mass and impact velocity without requiring a damping setting for each impact.

**How do I select the correct AC series model?**

Check the required stroke, total energy per cycle, hourly energy load, effective mass, impact velocity and mounting dimensions. Each value must fall within the ratings of the exact model and performance variant.

**Is moving mass alone enough to select a shock absorber?**

No. Impact velocity, cycle rate and any driving force acting during the stopping stroke also affect selection. Two mechanisms with the same moving mass may require different shock absorbers.

**What is the difference between -1, -2 and -3 variants?**

The listed variants have different effective mass and impact velocity ratings. Check the complete model designation against its performance table before ordering.

**What does the -N suffix mean?**

In the dimension tables that identify cap options, -N indicates the version without a cap. Confirm the complete designation and matching drawing for the model being ordered.

**Does an AC series shock absorber need a compressed air connection?**

The shock absorber uses hydraulic damping and does not require a compressed air connection for its damping function. It may be installed alongside pneumatically driven equipment.

**What is the operating temperature range?**

The published operating temperature range is −10°C to +80°C. Actual selection should also account for cycle rate, heat buildup and the surrounding installation conditions.

**Can I select a model using only its maximum energy per cycle?**

No. The hourly energy rating must also be checked. Repeated impacts can exceed the allowable hourly energy load even when each individual impact is below the per-cycle limit.

### OEM & ODM Support

HOMIPNEU accepts OEM & ODM inquiries for AC series hydraulic shock absorbers. Discuss requirements for product identification, packaging and application-specific configurations with our team.

For an accurate evaluation, provide the required model or drawing, moving mass, impact velocity, cycle rate, operating temperature, mounting dimensions and expected order quantity. Requested changes are subject to technical review and confirmation.