121.12.059.00 Danfoss
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The 121.12.059.00 is a hydraulic pump with a clockwise rotation and a displacement of 12 cm³/rev. Manufactured by Danfoss as part of the MCD Soft Starters series, it features an ISO 4-bolt mounting flange and weighs 3.5 kg. The pump operates at a maximum pressure of 250 bar and is constructed from durable aluminum.
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Product Description:
Danfoss’ MCD Soft Starters is listed under its Hydraulic Pump family which introduces 121.12.059.00 which identifies the product class for system selection and matching parts. Its mounting flange ISO 4-bolt defines the standard four-bolt interface and simplifies mounting plate design and interchangeability. The component’s pump displacement 12 cm³/rev sets the nominal volumetric output per revolution and supports flow and torque calculations for hydraulic circuit design.
Rotation clockwise establishes the shaft turning direction and informs coupling orientation and port assignment. The peak operating pressure at 250 bar sets the working pressure limit and guides selection of hoses, fittings and relief settings. The machine’s maximum speed of 4000 RPM defines the maximum allowable rotational speed and supports calculation of theoretical flow at peak shaft speed. Port threads metric prescribes the thread standard for hydraulic ports and further reduces ambiguity when specifying adapters and hoses. Sealing with NBR rubber determines compatibility with common hydraulic fluids. The module’s body material of aluminum indicates housing construction. Weighing around 3.5 kg, it provides the unit mass for handling, shipping and mounting load calculations.
Controller 121.12.059.00 lists external dimensions L 8.2 × W 9.2 × H 12.8 cm to determine enclosure cutout and clearance requirements for panel or machine mounting. Peak pressure 150 bar identifies the maximum short-term pressure capability for the SKM1 frame and informs surge and transient protection design. The module’s rated pressure of 130 bar specifies continuous pressure capability and supports selection of pressure compensators and safety margins. Additionally, its minimum stable speed of 800 RPM sets the lower operational speed for expected flow stability and pump life considerations. The volume of 965.632 cubic centimeter quantifies the unit displacement envelope and aids packaging and volume-based logistics.
