Yale PY-04 Portable Electric Hydraulic Pump ? 700 Bar Two-Stage Power Pack

Description

The Yale PY-04 Portable Electric Hydraulic Pump is a compact yet powerful two-stage electric power pack engineered for professional maintenance, repair and service applications where reliable 700 bar hydraulic performance is required. Combining portability, precise control and high safety standards, the PY-04 series is ideally suited for on-site use across industrial, construction and engineering environments.

Designed to operate both single-acting and double-acting hydraulic cylinders (depending on valve configuration), the PY-04 offers outstanding flexibility. Its two-stage hydraulic system ensures fast cylinder advance under low load conditions, while automatically switching to high-pressure mode when load resistance increases. This significantly reduces cycle times and improves overall productivity.

A key advantage of the PY-04 range is the combination of manual control valves and electric remote pendant operation. The 1.5-metre remote control allows the operator to start the motor even under full load, providing greater freedom of movement and improved safety when working around heavy components. The valve logic enables three essential functions: advance, hold and return, ensuring controlled load handling at all times.

The manual valve versions are designed to ?hold the load? securely when the motor stops, an essential feature for lifting and positioning tasks. On the PY-04/2/5/2M model, the pilot-operated unloading valve allows the operator to choose between pressure holding or automatic retraction after motor stop. The solenoid-controlled version (PY-04/2/5/2E) provides push-button operation, allowing smooth advancing, pressure holding in neutral position, and controlled retraction via the solenoid valve.

Despite its performance, the PY-04 remains lightweight and highly portable. A convenient carrying handle makes it easy to transport between work locations, while the compact footprint allows use in confined spaces. The pump is supplied ready for use with hydraulic oil, reducing setup time on site.

Built for durability, the PY-04 is equipped with thermal overload protection to safeguard the electric motor during extended operation. The robust motor runs at 2800 rpm and complies with IP50 protection standards, making it suitable for demanding industrial environments. Powered by a 230 V single-phase supply, it can be used in most workshop and site conditions without special electrical infrastructure.

Typical applications include general maintenance and repair work, lifting and positioning tasks, assembly operations, and controlled hydraulic actuation where precise load holding is essential. Wherever a portable, dependable electric hydraulic power source is required, the Yale PY-04 delivers professional-grade performance.

Typical Applications
Maintenance and repair operations
Lifting and positioning tasks
Assembly and installation work
Service operations in workshops and on site
Hydraulic actuation requiring secure load holding

Available Models & Technical Data
Model Valve Type Max Pressure (bar) Flow No Load (l/min) Flow @ 700 bar (l/min) Reservoir (l) Power Weight (kg) Price (œ)
PY-04/2/5/2M 2/2-way manual 700 4.0 0.23 5 0.37 kW 24 3201.30
PY-04/2/5/4M 4/3-way manual 700 4.0 0.23 5 0.37 kW 26 3759.86
PY-04/2/5/2E 2/2-way solenoid 700 4.0 0.23 5 0.37 kW 28 4932.12

Safety & User Instructions
Use only with hydraulic components rated for 700 bar
Ensure stable placement before operation
Do not bypass thermal overload protection
Keep hands clear of moving loads during operation
Regularly inspect hoses, couplers and valves