Marzocchi hydraulic pump ALM series product model
Marzocchi Hydraulic Pump ALM Series
Marzocchi ALM series is a range of high-performance aluminum gear motors, divided into three groups (ALM 1, ALM 2, ALM 3) with different displacement ranges and technical specifications. They are widely used in both mobile and industrial hydraulic systems, featuring versatility, durability and long service life. The following are the detailed models and parameters of each group.
1. ALM 1 Group
The ALM 1 group includes unidirectional and bidirectional hydraulic motors, with displacement ranging from 1.4 cc/rev to 13.8 cc/rev (unidirectional) and 2.8 cc/rev to 11.0 cc/rev (bidirectional). It is designed to be mounted according to the DIN Group 1 standard, suitable for medium to high pressure applications.
1.1 Models and Detailed Parameters
|
Model
|
Displacement (cc/rev)
|
Flow at 1500 rev/min (L/min)
|
Max Continuous Pressure (bar)
|
Max Peak Pressure (bar)
|
Max Speed (rpm)
|
|---|---|---|---|---|---|
|
ALM 1-R-4-E1
|
2.8
|
3.9
|
250
|
270
|
5000
|
|
ALM 1-R-5-E1
|
3.5
|
4.9
|
250
|
270
|
5000
|
|
ALM 1-R-6-E1
|
4.1
|
5.9
|
250
|
270
|
4000
|
|
ALM 1-R-7-E1
|
5.2
|
7.4
|
230
|
245
|
4000
|
|
ALM 1-R-9-E1
|
6.2
|
8.8
|
230
|
245
|
3800
|
|
ALM 1-R-11-E1
|
7.6
|
10.8
|
200
|
215
|
3200
|
|
ALM 1-R-13-E1
|
9.3
|
13.3
|
180
|
195
|
2600
|
|
ALM 1-R-16-E1
|
11.0
|
15.7
|
170
|
185
|
2200
|
|
ALM 1-S-6-C0
|
4.1
|
6.1
|
250
|
270
|
4000
|
Key Notes: The ALM 1 group also includes models such as ALM 1, ALM 1-EO, ALM 1A, ALM 1A-EO. The max continuous backpressure is 6 bar for unidirectional motors and 240 bar for bidirectional motors; max drain line pressure is 6 bar for bidirectional motors.
2. ALM 2 Group
The ALM 2 group covers unidirectional and bidirectional motors, with displacement ranging from 4.5 cc/rev to 35.2 cc/rev (unidirectional) and 4.5 cc/rev to 28.2 cc/rev (bidirectional). It offers various configurations including European, SAE, German standards, and is suitable for a wide range of industrial and mobile applications.
2.1 Models and Key Parameters
|
Model Series
|
Displacement Range (cc/rev)
|
Max Continuous Pressure (bar)
|
Max Peak Pressure (bar)
|
Max Speed (rpm)
|
Key Configurations
|
|---|---|---|---|---|---|
|
ALM 2, ALM 2-EO, ALM 2A, ALM 2A-EO
|
4.5 – 35.2 (unidirectional); 4.5 – 28.2 (bidirectional)
|
250
|
290 (unidirectional); 270 (bidirectional)
|
4000
|
Standard flange, cylindrical or splined shaft
|
|
ALM 2-T, ALM 2A-T
|
4.5 – 35.2 (unidirectional); 4.5 – 28.2 (bidirectional)
|
250
|
290 (unidirectional); 270 (bidirectional)
|
4000
|
Rectangular flange (ALM 2-T); SAE A flange (ALM 2A-T), conical/cylindrical/splined shaft
|
|
ALM 2 BK1, ALM 2 BK1-T
|
4.5 – 35.2 (unidirectional); 4.5 – 28.2 (bidirectional)
|
250
|
290 (unidirectional); 270 (bidirectional)
|
4000
|
Bosch rectangular flange, conical or splined shaft
|
|
ALM 2-S-6-D
|
4.5
|
250
|
290
|
4000
|
Standard configuration
|
|
ALM 2 BK1-R-16-E1
|
11.5
|
250
|
290
|
4000
|
Bosch rectangular flange
|
Key Notes: The max continuous backpressure is 6 bar for unidirectional motors and 240 bar for bidirectional motors; max drain line pressure is 6 bar for bidirectional motors.
3. ALM 3 Group
The ALM 3 group is designed for larger displacement requirements, with displacement ranging from 20 cc/rev to 87 cc/rev (unidirectional) and 22 cc/rev to 87 cc/rev (bidirectional). It features high load-bearing capacity and is suitable for heavy-duty hydraulic applications.
3.1 Models and Key Parameters
|
Model Series
|
Displacement Range (cc/rev)
|
Max Continuous Pressure (bar)
|
Max Peak Pressure (bar)
|
Max Speed (rpm)
|
Key Configurations
|
|---|---|---|---|---|---|
|
ALM 3, ALM 3A
|
20 – 87 (unidirectional); 22 – 87 (bidirectional)
|
230
|
270 (unidirectional); 250 (bidirectional)
|
3500 (unidirectional); 2500 (bidirectional)
|
Standard configuration, suitable for heavy-duty applications
|
Key Notes: The max continuous backpressure is 6 bar for unidirectional motors and 220 bar for bidirectional motors; max drain line pressure is 6 bar for bidirectional motors.
General Specifications of ALM Series
-
Design: External gear motor, simple structure, low maintenance cost and long service life.
-
Hydraulic Fluid: Suitable for standard hydraulic fluids; proper filtering of the hydraulic system is required to ensure product performance.
-
Rotation Direction: Available in left (ALM…L) and right (ALM…D) configurations; bidirectional models support reverse operation.
-
Installation: Follow the installation guidelines provided by Marzocchi to ensure proper connection of supply and delivery lines, and avoid fluid turbulence.
