Micropac MC Miniature Hydraulic Hand Pump

A sub-miniature hand pump, fully functional for small systems and includes a small integral reservoir. Options include 316 stainless, a larger reservoir and miniature 4 way operation for double/acting actuators.

The Micropac MC is a truly miniature hydraulic hand pump with a 20cc integral reservoir, a release valve and relief valve. It provides all your requirements for a miniature hydraulic system. Just add your hose or pipework and your actuator or test component. Tell us what you need to achieve and we will advise whether it is suitable.

Not all hydraulic systems are large volume. Indeed, if you design a small displacement system and specify mainstream hydraulic parts, you will end up with something quite large and missing a better engineered solution. If you have a very small actuator, pilot cylinder to pressurise, braking system or are simply calibrating and testing, the MC unit offers a flexible, high quality manual power solution with an amazingly small space envelope. Configure the unit to include a miniature 4 way valve for double acting actuators or add a 175cc reservoir to suit your application. Use one MC miniature pump close to the actuator and eliminate bulky hoses or pipework. Design a testing or calibration rig that takes up the same bench space as an office stapler. Designers use it where they can see the opportunity to fit a compact hydraulic cylinder in place of a laborious screw jack.

The unit was developed for a hydraulic crew seat in conjunction with an innovative Micropac pull cylinder and connected with a small bore Polyflex hose. Our customers have benefitted from our MC Micropac miniature hydraulic hand pump in a wide range of applications over a long period. We have integrated three and four-way port valves for applications including actuation, control systems and ground support equipment. A stainless-steel version with a 316-stainless body, piston rod and ancillary parts provides corrosion resistance in harsh environments. The 20cc reservoir is neatly integrated into the body and if you can design your system around this, you will achieve a truly miniature 400 bar hydraulic system for use on mineral oil. If you require a larger volume, we offer a 175cc reservoir.

When does the Micropac MC Miniature Hydraulic Hand Pump provide a winning solution?

Small system volumes and using more specialist small volume components like miniature actuators connected with pipework or Polyflex microbore hoses have given our customers a true competitive advantage. We have seen very neat and cost effective solutions particularly where space envelope and mass are critical. The unit is very small indeed but rugged. We would not connect the unit up using large bore hydraulic hoses or mainstream large hydraulic valves. Note it is not for water service, although customers use our MC pump on brake fluid and even PAG refrigeration oil in a field service tool. Talk to us regarding your specific requirements.

Why buy a Micropac MC Miniature Hydraulic Hand Pump?

  • Ultra-compact design packs in a 20cc integral reservoir
  • Rugged construction and fully serviceable
  • Cost effective. Fit one pump per actuator or test rig.
  • Detachable handle provides space saving.
  • Operation up to 400 bar on mineral oil.,
  • Stainless steel 316 body version available
  • Relief and release valve options on pump body.
  • Optional 4 way directional valve to 170 bar for double acting actuators
  • Optional 175cc integral reservoir for extra system volume

What is it used for?

  • Control Systems
  • Operating pilots & small actuators
  • Calibration
  • In-process testing
  • Braking Systems

Description

The MC series is a miniature 0.6cc per stroke, single acting hand pump. The hard-chromed piston rod runs in a bronze bearing for long life. The ultra-compact pump body is fitted with inlet and outlet non-return valves, a relief valve and a release valve. These two valves can be blanked with Micropac cavity blanking plugs for flexibility to suit your exact application. There is a 20cc reservoir integrated into the pump body with a G1/2 filler/breather and strainer mesh. If you need a larger reservoir, a 175cc tubular reservoir can be fitted.  The pump is mounted using two M8 tapped holes in the body or using an angle bracket that we can supply. There is no provision for through holes in this compact pump body.

The base model is carbon steel but a unit with a 316 stainless body and other parts is available. The outlet port is 1/8npt female, however we do offer adaptors if required. A miniature four way directional control valve for operating double acting actuators is available and operates to 170 bar. Three port valves are also commonly fitted directly to these units for over-ride applications. The unit should be piped up using tube (typically 6 or 6.35mm o/d) or a small-bore hose, typically -2 or -3 sizes.

Contact the factory to discuss your application for this MC series miniature hydraulic hand pump.

Technical Specifications

Pressure: Up to 400 bar
Stroke volume: 0.6cc per stroke single acting
Fitting: 1/8NPT female pressure, filler/breather G1/2 for cap or optional 175cc reservoir
Mass:  1 kg
Materials: Carbon steel or 316 stainless steel body version
Seal options: Nitrile or Viton fluorocarbon
Fluid options: Mineral oil
Applications: Actuation, control systems, pilots, braking systems, calibration and testing