Yuken supplier in Romania

For Yuken we quote A3HG and A3HM variable piston hydraulic pumps, EDFHG series proportional valves, electrohydraulic controls and hydraulic power units; the code from the pump or the valve is enough for a quotation.

Founded in 1929 · Headquarters: Ayase, Japan

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Who is Yuken and what does it make?

Yuken Kogyo Co., Ltd. is a Japanese manufacturer of industrial hydraulics headquartered in Ayase, Kanagawa Prefecture, listed on the Tokyo Stock Exchange. Its beginnings date from 1929, when a mechanical engineering factory was established; production of the first hydraulic vane pumps followed in 1940, and it was incorporated as a joint-stock company in 1956. The group has 1,401 consolidated employees (March 2026), and its activity is divided into hydraulic equipment, hydraulic systems and environmental equipment, including chip and PET bottle compactors.

The hydraulic equipment catalogue covers the whole circuit: piston and vane pumps, pressure and flow valves, directional valves, modules, logic valves, proportional electrohydraulic controls, servo valves, actuators and standard hydraulic power units. Among the recent series, notable are the A3HG and A3HM variable piston pumps, the ASR servomotor pump, the EH proportional series, the EDFHG-04/06 and ECDFHG-04EH/06EH valves, the G pilot-operated low-shock valve, the CJT70PS/CJT140PS cylinders with position sensor and the HE-YA standard power unit. In the Czech Republic there is the entity YUKEN ČR s.r.o., with its own page.

On older presses, injection machines or machine tools, the nameplate may indicate a valve or pump from the Japanese series. The suffixes in the code (nominal size, coil type, version) decide compatibility, which is why requests with the full code are resolved quickly.

What do we supply from the Yuken range?

Product	Description
A3HG, A3HM and ASR hydraulic pumps	High-pressure variable axial piston pumps in the A3HG and A3HM series, plus ASR pumps driven by an AC servo motor, for presses, injection moulding and machine tools.
Pressure, flow and directional valves	Pressure, flow and directional valves and modules, including the G series with low-shock, variable switching, solenoid-controlled via pilot, alongside logic valves and in-line prefill valves.
Proportional controls and servo valves	The EH series, the EDFHG-04/06 and ECDFHG-04EH/06EH valves with built-in amplifier and feedback control on the main spool, the EMRP-01 modular pressure reducing valve and linear servo valves with dual motor.
Actuators and hydraulic power units	Hydraulic cylinders, including CJT70PS/CJT140PS with position sensor, CHW cylinders, mini cylinders, HE-YA standard power units and adapted units, plus accumulators and accessories such as the contamination kit.

Why Yuken?

A3HG variable piston pumps: the Czech entity's page indicates up to 350 bar and displacements between 8 and 180 cm³/rev
ASR pumps with AC servo motor: an energy-saving hydraulic control system
Proportional valves and servo valves: the EH, EDFHG and ECDFHG series and high-speed linear servo valves, for fine control of pressure and flow
Modular directional valves: modular nomenclature in sizes DN06–DN32, according to ISO 4401
Standard hydraulic power units and dedicated systems: from the HE-YA package to hydraulic systems for industrial and marine machinery

Which Yuken codes and series are requested most often?

Code	Description
A3HG	Variable piston pump, high pressure
A3HM	Variable piston pump, high pressure
ASR	Pump driven by an AC servo motor
EH	Series of proportional electrohydraulic controls
EDFHG-04	Proportional directional and flow valve
EDFHG-06	Proportional directional and flow valve
ECDFHG-04EH	Proportional valve with built-in amplifier
ECDFHG-06EH	Proportional valve with built-in amplifier
EMRP-01	Modular proportional pressure reducing valve
LSVHG	High-speed linear servo valve
G	Series of pilot-operated low-shock, variable valves
CJT70PS	Hydraulic cylinder with position sensor
CJT140PS	Hydraulic cylinder with position sensor
CHW	CHW type hydraulic cylinder
HE-YA	Standard hydraulic power unit package

Where is Yuken equipment used?

Machine tools: dedicated hydraulic equipment
Plastics processing: injection moulding machines with ASR pumps and proportional valves
Presses and forging: standard hydraulic power units and pressure valves
Marine applications: hydraulic systems for marine use
Recycling: automatic compactors for metal chips, PET and waste

How do we supply Yuken in Romania?

We can prepare quotations for Yuken pumps, valves, cylinders and hydraulic power units, brought in to order by import, usually in 1–4 weeks. For proportional valves, servo valves or configured units the lead time can be longer, depending on the specifications. An accurate quotation starts from the full code on the nameplate, with nominal size, coil voltage, pressure and version (the suffixes at the end of the code). For pumps, add the displacement, direction of rotation and flange. For older models we ask the factory for confirmation before quoting.

The manufacturer has announced model changes on some series (for example on the G valves and on the cylinders with sensor), so an older code cannot be considered available without checking.

Frequently asked questions about Yuken

What does Yuken produce?

Yuken Kogyo, with beginnings in 1929 and headquarters in Ayase, produces piston and vane hydraulic pumps, pressure, flow and directional valves, proportional valves, servo valves, cylinders and standard hydraulic power units, plus environmental compactors, for example for chips and PET.

How do I choose a Yuken proportional valve?

Start from the nominal size (for example 04 or 06), the flow and pressure, the type of feedback and whether the amplifier is built in, as on the ECDFHG-04EH/06EH. Send us the full code, the circuit diagram and the available voltage.

Can you supply Yuken products in Romania and within what lead time?

Yes, to order, by import. The lead time to order is usually 1–4 weeks, and for proportional valves, servo valves or configured units it can be longer. The final lead time is given in the quotation, after the code is confirmed.

I have an old Yuken valve; can it still be replaced?

The manufacturer updates its models periodically, so we first check whether the series is still in production. We need the full code with the suffixes, the coil type and the working pressure. We do not state compatibility with another model without confirmation from the factory.

What should I send for a quotation for an A3HG or ASR pump?

State the full code, the displacement, the direction of rotation, the flange and shaft type, the maximum pressure and, for the ASR, the characteristics of the servo motor. A photo of the nameplate and of the connections helps to identify the correct variant.

How do I request a Yuken quotation?

Send the Yuken code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.