AMI Electrical Controls
AMI Electrical Controls represent the ideal technical solution for operating hydraulic directional control valves. The range includes direct actuation devices, ON-OFF (PUSH-PULL) controls, and electro-hydraulic versions, including proportional ones. Available with 12Vdc and 24Vdc power supplies, these components are designed to handle flow rates up to 35 l/min. Electro-hydraulic models feature a flanged pressure reducing valve as standard, ensuring precision and reliability. Application requires dedicated machining inside the valve body. Compatible series families are: AMI 3, AMI 4, AMI 21R, AMI 250, AMI 300, AMI 130, AMI 700, AMI 012, AMI 013, AMI 5C, AMI 42C, AMI 12C.
The range of AMI Electrical Controls consists of several technical solutions developed for the precise management of hydraulic directional control valves. The offering includes direct actuations, PUSH-PULL variants, and electro-hydraulic controls, designed to operate with maximum efficiency within hydraulic circuits. The engineering of these accessories covers a wide variety of operational requirements and flow rates, integrating seamlessly with the brand’s primary directional control valve series.
Devices for direct electrical actuation include models H70 and H71. Model H70 operates with a 12Vdc supply voltage, while model H71 is configured for 24Vdc use. Both devices are supplied complete with connectors and are sized to handle fluid flow rates up to 35 l/min.
The line of ON-OFF electrical controls (PUSH-PULL) further expands the possibilities for interacting with directional control valves. Versions H73 and H73R1 operate at 12Vdc, maintaining the same capability to handle flow rates up to 35 l/min and featuring a solenoid block footprint of 164 mm combined with a 66 mm lever module. For systems with different power supplies, models H74 and H74R1 offer the same ON-OFF (PUSH-PULL) performance but require a 24Vdc supply.
For hydraulic applications requiring superior control, AMI Electrical Controls offer electro-hydraulic variants. Models H75 and H76 enable ON-OFF electro-hydraulic control, supporting both 12Vdc and 24Vdc voltages.
Models H77 and H78 introduce proportional electro-hydraulic control technology (also available in 12Vdc and 24Vdc). For optimal operation and maximum precision with these specific proportional devices, pairing with the H25 metered spool is recommended. During system design, it is essential to consider that using this particular proportional configuration results in a reduction of the effective flow rate.
From an assembly standpoint, all electro-hydraulic controls in the H75, H76, H77, and H78 series integrate a flanged pressure reducer as standard, a key element for flow stability. Where system technical specifications require it, these controls can be supplied upon request complete with a power supply kit equipped with a check valve set at 10 bar.
It is essential to note that the installation of AMI Electrical Controls requires specific mechanical precautions: the application of the solenoids strictly requires dedicated machining inside the valve body.
Overall dimensions vary depending on the target AMI series and the type of control. In direct devices, for models AMI 3, AMI 4, AMI 21R, and AMI 250 the dimensions are A=80 and B=79, whereas for model AMI 300 the dimensions increase to A=100 and B=83. In electro-hydraulic controls, module lengths vary between 34 mm, 87 mm, 137.5 mm, and 159 mm for the proportional version. The specific interface dimension for valves H75-H78 measures 34.5 mm for series AMI 3, AMI 4, AMI 250, and AMI 5C, and extends to 44.5 mm for series AMI 21R, AMI 300, AMI 130, AMI 700, AMI 42C, and AMI 12C.
| Feature | Value |
|---|---|
| Direct Control Type | H70 (12Vdc), H71 (24Vdc) |
| ON-OFF (PUSH-PULL) Control Type | H73 / H73R1 (12Vdc), H74 / H74R1 (24Vdc) |
| Electro-Hydraulic ON-OFF Control Type | H75, H76 (12Vdc – 24Vdc) |
| Electro-Hydraulic Proportional Control Type | H77, H78 (12Vdc – 24Vdc) |
| Maximum Flow Rate (Direct and PUSH-PULL models) | Up to 35 l/min |
| Included Components (H75-H76-H77-H78) | Flanged pressure reducing valve |
| Options on Request (H75-H76-H77-H78) | Power supply kit with check valve set at 10 bar |
| Installation Requirements | Special machining inside the valve body for solenoids |
| Proportional Controls Note | Recommended pairing with H25 metered spool (results in flow rate reduction) |
| Control Model | Power Supply | Function | Compatible AMI Directional Valve Families |
|---|---|---|---|
| H70 | 12Vdc | Direct Electrical Actuation | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |
| H71 | 24Vdc | Direct Electrical Actuation | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |
| H73 / H73R1 | 12Vdc | ON-OFF (PUSH-PULL) | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |
| H74 / H74R1 | 24Vdc | ON-OFF (PUSH-PULL) | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |
| H75 / H76 | 12Vdc / 24Vdc | Electro-Hydraulic ON-OFF | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |
| H77 / H78 | 12Vdc / 24Vdc | Electro-Hydraulic Proportional | AMI 3, 4, 21R, 250, 300, 130, 700, 012, 013, 5C, 42C, 12C |