AC Electric Motors for Hydraulic Power Units
- Compact integral design power within 0.25–7.5 kW, single or three phase, 2 or 4 poles.
- High power density and torque
- Easy mounting, broad compatibility
- Duty cycle and energy performance: – – For continuous duty (S1, three-phase), IE4 motors (IEC 60034-30) are recommended.
Hydraulic AC Motors
AC Motor Supply and Interface Requirements
With decades of hydraulic engineering and motor integration experience, Hydrath delivers reliable, high‑performance AC motor solutions tailored to the demanding power needs of industrial and mobile hydraulic systems. Our portfolio covers IE3/IE4 continuous‑duty motors for presses, docks, and lifts, as well as compact, high‑torque options optimized for hydraulic power packs. Each motor is designed for thermal stability, rugged operation, and precise alignment with IEC B14/B5 and NEMA 56C/184TC interfaces to ensure seamless coupling to gear pumps and manifolds.
As your trusted manufacturing partner for hydraulic power packs, Hydrath pairs robust motors with precision bellhousings and couplings, CETOP‑compatible manifolds, and end‑of‑line testing for assured performance.
Whether you are driving a hydraulic lift, dock leveler, or industrial press, Hydrath provides standard and custom motor solutions to fit your duty cycle, voltage, and mounting requirements. Choose Hydrath for durable, efficient AC motors that keep your hydraulic systems running smoothly, safely, and reliably.
OUR PRODUCT
AC Motors for Hydraulic Power Packs
Hydrath Provide One Stop AC Motor Solution For Hydraulic Power Packs
Single Phase AC Motors
Single-phase AC motors provide dependable starts and stable torque for compact hydraulic power packs. Frame 71 and IEC B14 flange options streamline assembly, while IP44/IP54 protection supports industrial duty. Choose single-phase when grid simplicity, low installation cost, and broad compatibility matter.
Three Phase AC Motors
Three-phase AC motors deliver higher efficiency, smoother continuous duty, and better power factor for demanding hydraulic systems. Frame 71 options integrate readily with gear pumps, supporting stable 1450 rpm operation and industrial reliability across applications requiring consistent duty cycles.
B14 IEC AC Motors
IEC B14 flange motors enable compact, coaxial mounting to hydraulic pumps, reducing misalignment and assembly time. Available mounting kits for frames 63/71 ensure quick installation and repeatable alignment, ideal for micro power packs and modular manifolds where footprint and serviceability drive value.
NEMA AC Motors
NEMA-frame AC motors fit North American standards and are suited for projects requiring regional compliance and OEM interchangeability. When specifications call for NEMA footprints, select motors with appropriate voltage, poles, and enclosure ratings; special executions can be supplied on request to match application needs.
Oil‑immersed AC Motor
Oil‑immersed motor hydraulic power units deliver low‑noise, stable power for dock levelers, lift tables, and scissor lifts. AC 110/120/230/240/400V, 0.75–5.5 kW, 3–25 L/min, 160–250 bar; single/double‑acting circuits with aluminum manifolds. The submerged motor improves cooling and uptime, helping you cut maintenance and footprint in continuous indoor service. Reservoirs 8–80 L with plastic or steel tanks.
AC Motor Mounting Kit
AC motor mounting kits (B14 flange + coupling) standardize pump-motor alignment, reduce assembly time, and improve reliability. Kit contents match specific frames and pump groups, ensuring correct shaft interface and hardware selection for vertical builds and integral assemblies in compact hydraulic units.
Application
Hydraulic Power Packs Applications
Agriculture & livestock
- Lifting
- Feeding
- Rural automation systems
Meet Us on The Trade Show
Hydrath attends exhibitions worldwide every year:
Hannover Messe
PTC ASIA
Bauma CHINA
You are welcome to book a visit to our exhibitions.
AC Motor Selection FAQ
What is a hydraulic AC motor in power packs?
An AC motor drives the hydraulic gear pump to generate flow and pressure.
Common builds use 4‑pole motors at 50/60Hz with IEC B14 flanges for compact, coaxial assembly.
Single-phase vs. three-phase — which should I choose for HPU?
Single-phase (220V) suits simple grids and cost‑sensitive retrofits.
Three‑phase (220/380V, 50/60Hz) offers higher efficiency, smoother continuous duty, and better power factor for demanding cycles.
What voltages, frequency, and poles are typical?
Typical specs are 220/380V, 50/60Hz, 4 poles (~1450 rpm at 50Hz).
Two‑pole and special executions are available on request.
What is an IEC B14 flange and why use it?
IEC B14 is a face‑mount flange standard enabling compact, coaxial motor‑pump mounting.
It reduces misalignment, simplifies assembly, and standardizes kits across frame sizes.
How do mounting kits improve reliability?
B14 mounting kits include the correct flange, coupling, and screws to ensure shaft interface, alignment, and repeatable torque transmission, reducing assembly errors and bearing wear.
Which frame sizes are common for hydraulic builds?
Common IEC frames include 63, 71, 80, 90, and 100/112, each with dedicated mounting kits and coupling sets for gear pump groups.
What ingress protection (IP) ratings should I specify?
IP44/IP54 are typical for industrial duty to resist dust and splashes.
Choose higher IP for harsh environments or outdoor use.
How do I match the motor to the pump?
Size the motor for pump displacement, required pressure, and duty cycle.
Use manufacturer coupling kits for the selected frame and pump group to ensure correct shaft fit and alignment.
Do you supply NEMA motors for North America?
NEMA‑frame options can be supplied upon request for regional compliance and OEM interchangeability.
Specify voltage, poles, enclosure, and flange requirements.
What special executions are available?
High starting torque, higher IP, and thermal protector executions are available on request to match heavy starts, harsh environments, or thermal limits.
How is rotation handled?
AC motor rotation is typically reversible by wiring.
Ensure pump rotation matches motor direction and use the correct coupling to prevent cavitation or misalignment.
Is vertical installation supported?
Yes. Assembly guides cover vertical builds with B14 flange systems and matched hardware for compact hydraulic units.
What documentation is needed for procurement?
Provide motor datasheet (voltage/frequency/poles/IP), frame/flange type (IEC B14/NEMA), mounting kit code, coupling type, and compatible pump group.
