Power Packs

		PY-03 - Mini-Hydraulic Power Packs portable, 700 bar These two-stage mini pumps are the ideal power packs for small and medium sized hydraulic tools. Examples are: Stamping and punching tools, hydraulic cutters, hydraulic puller sets, crimping tools, nut splitters, etc. Furthermore, these portable power packs are suitable for all standard maintenance and assembly jobs to pressurize hydraulic cylinders with intermediate operation. Due to the light weight and ergonomically designed handle the pumps can be easily carried from job to job. Depending on the individual model, these power packs can operate single-acting or double-acting hydraulic cylinders. The ideal combination of solenoid valve with remote pendant control of the electric motor offers practical operation. By using the push-button box (with 2m cable) the solenoid valve is controlled and the motor is switched on and off, even under full load. Control Functions Hydraulic cylinder: - advance - stop - retract - Features Pressure max 700 bar. Compact design, light weight. Sturdy 'full-metal' construction. For intermittent operation. Two-stage output (oil flow). 3 different control valves: 2/2-way solenoid directional valve, or 2/2-way manual relief valve (hand wheel), or 4/3-way manual directional valve (all in combination with motor start-stop pendant control). Reservoir: 3.0 litre, usable: 2.0 litre Includes hydraulic oil. Electric motor can start under full load. Power supply 230V 50Hz, 0.35kW (also available in 110V) Control voltage 24 Volt / protection: IP50 Oil port: 3/8 NPT.

		Heavy Duty Hydraulic Power Packs Series: PY-07, PY-11, PY-22 Yale hydraulic power packs are easy to operate as they are ready assembled and easy to control. The use of power packs is always recommended when: Jobs have to be done in a time saving and efficient way. Repeating jobs have to be finished off. Quick cylinder cycles have to be achieved. Large oil volumes in connection with high tonnage cylinders have to be transmitted. Two-Stage Oil Flows The standard Yale power packs are qyuipped with two-stage pumps, which eans that a low pressure stage fills the connected hydraulic cylinder quickly up to a pressure of 50 bar. The high pressure stage is activated automatically from 50 bar up to 700 bar, while the low pressure stage is discharge back to the reservoir. This economic solution avoids heating up, saves energy and keeps the powr packs compact. Hydraulic Oil All power packs are designed to be operated with standard hydraulic oil (specification ISO VG 32). For certain operating conditions, the viscosity class of the hydraulic fluid can be varied. All power packs are supplied including oil. Oil Cooler For certain applications, especially when power packs are continuously operated and the oil temperature could exceed 60°C, the use of an oil cooler is recommended. Do you need to operate a 'single-acting' or 'double-acting' hydraulic cylinder ? The directional control valve ha to correspond to the a.m. functional principle of the hydraulic cylinder to be operated. Depending on these principles, the power packs are equipped with a: 3/3-way valve to operate single-acting hydraulic cylinders (connection with one hydraulic hose) or 4/3-way valve to operate double-acting hydraulic cylinders (connection with two hydraulic hoses) The directional control valves are available either as 'manual' or 'solenoid' operated valves. Control and Operation The motion control of the connected hydraulic cylinder is done by operating the directional valve.

		Hydraulic Power Pack with Protection Cage This power pack is specially designed for general lifting applications in construction areas. Equipped with an optimized valve configuration, including 4-way manual directional valve VHP-4/3.1, safety-check valve VSM-21, pressure relief valve VPR-3 and 2 pressure gauges for permanent load control.

		Hydraulic Power Pack with 4-way Manifold MY-44-GYA The most economic way for a 'pressure-inependent' and individual control of 4 songle acting hydraulic cylinders. The additionally mounted safety-check valve VSM-21 avoids uncontrolled pressure drops and the built-in throttle valve allows a precise (millimetre-wise) lowering even of the highest loads. Four pressure gauges allow a permanent reading of the individual loads. On request, the power packs can be equipped with a handy cart frame to make the operation flexible. This type of power pack can be supplies in all sizes of the PY and PYE series.

		Hydraulic Power Pack with 4-times Solenoid Valve The quadruple solenoid valve block ensures a 'pressure-independent' and individual control of 4 double-acting hydraulic cylinders. Solenoid valves offer several well known advantages such as: ergonomic and safe control by pendant remote control, exact load hold, precise and quick switch characteristics and many more.

		PMF - Multiple Flow Power Packs Multiple-flow hydraulic pumps can advance 4 cylinders with the same speed in the same time by injecting equal amounts of hydraulic oil into each individual cylinder. This principle allows a synchronised lifting of machines or similar loads from a central point. Even under different loading conditions, the cylinders advance in synchronisation. A levelling of a lopsided load is easily possible by an individual control of each single cylinder. The lifting phase is initiated by a push-button remote control and can be interuppted and continued at any time. All connected cylinders can be controlled individually or jointly (synchronous). Lowering of the load is done by operating the directional valve in connection with the throttle valve individually for each circuit. The multiple flow pumps can drive all kinds of hydraulic cylinders, machine jacks or stage lifts. Features 4-point synchronised lift due to 4 equal, independent and individual oil flows. 4 manually operated directional valves, or 4 solenoid directional valves alow an individual or joint control of all 4 connected cylinders (easy levelling of a load possible). Safe load hold due to check valve in each circuit. One man central operation. Motor on-off switch by means of a pendant remote control in connection with manual valves, or 8 button remote control box to operate the solenoid valves. Scope of Delivery For each of the four circuits the 'ready to use' supply includes: glycerine-dampened prssure gauge, 3-way control valve, safety-check valve, a female coupler-half as connecting port. Furthermore: hydraulic oil, carrying handles, motor on-off switch, motor connecting cable, pendant remote control, electro-box with transformer and motor relais, oil level gauge and oil filler / ventilation plug. All multiple-flow power packs are also availabe with 4-way directional valves in order to operate double-acting hydraulic cylinders.

		4-Multiple-Flow Power Pack with Solenoid Directional Valves To advance 4 hydraulic cylinders independently and in a synchronised way by means of solenoid valves with a pendant remote control box. This principle provides a high degree of flexibility for the operator who can control the whole process from a central point. The solenoid valves, in conjunction with safety-throttle valves allow a prcise control of all connected hydraulic cylinders. The motion can be interrupted and continued at any time. This configuration can be supplied in all performance stages of the series PMF.
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