CASE STUDIES 11 - 12

• Case Study 1. Hydraulic Power Packs and Systems for Rubber Extrusion Machines
• Case Study 2. Engine Driven Hydraulic Power Packs
• Case Study 3. Hydraulic Power Pack System Operating Boiler Gas Diverters
• Case Study 4. Compressed Air Driven Hydraulic Power Packs
• Case Study 5. Hydraulic Test System
• Case Study 6. Diesel Driven Power Packs
• Case Study 7. Flow / Pressure Test Rig
• Case Study 8. Portable Power Packs
• Case Study 9. Hose Swaging Equipment
• Case Study 10. Belle Tout Lighthouse
• Case Study 11. Friction Welder Hydraulic Power Unit
• Case Study 12. Airbus Wing Moving Project

Case Study 11. Friction Welder Hydraulic Power Unit A major manufacturer of friction welding equipment required an electrically driven power unit to drive a friction welder designed to weld API connections to oil well drill rods and tubes from 5 ½ inch to 16 inch diameter. CFP designed and built the unit with two electric CMG motors (11kw and 18kw) and two variable piston pumps with maximum power controls delivering from 30 LPM to 130 LPM, up to a maximum pressure of 200 bar. ATOS digital proportional pressure controls were used due to the required technical specification and capability of these units to ensure the pressure difference was +- 0.25%. Special purpose valve manifolds were commissioned through Related Fluid Power to suit the customer’s requirements and the complete unit was designed, built, tested and commissioned within twelve weeks.

Case Study 12. Airbus Wing Moving Project

Airbus, commissioned CFP, Digitron Translift and King Trailers to develop and build a hydraulically operated trailer to carry, load and unload the completed wings for the A440M onto a specially built A380 to transport the wings from their manufacturing facility at Felton, UK to Toulouse where they would be fitted to the A400M. This unit had to be transported and powered from a standard airplane tug which operates a 24v power supply, whilst having the capability of moving an 8 tonne cargo with total precision and be housed within the physical constraints of the carry trailer.

A custom built pair of ALPATEK 4kw, 24dc electric motors, ATOS proportional valves with electronic drivers and built in adjustable ramp were used to ensure a smooth and precisely controlled acceleration and deceleration of mass from standstill was achieved. LODAR remote wireless controls with a hard wired pendant back up were fitted to ensure the operator had optimal visual clarity during operation.

Working alongside the design team at Digitron CFP Hydraulics produced the complete drive train including all the hydraulic and electrical control systems, a 5:1 reduction gearbox, lay shafts, Cardin shafts, couplings and bearings. The hydraulic packs were then installed to both the loading and unloading units, fully tested and commissioned successfully over a 2 day period at King Trailer depot in market Harborough by the CFP installation team.

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