WORKING in conjunction with sister company McQuay, J&E Hall has developed a means to remanufacture scroll compressors, a technique which further reduces the acr industry’s impact on the environment.
The development of the Rescroll 3, managed at the McQuay Technology Centre in Dartford, took two and half years. Test facilities were built, and many compressors remanufactured and rejected until the remanufacturing technology was perfected.

Engineers began by examining damaged scroll compressors. A picture emerged on reasons of failure, damage to internal components and if remanufacture was feasible.

Unfortunately says J&E Hall, not every compressor can be remanufactured – one in five have internal components too damaged or worn. These compressors are dismantled and recycled with proper disposal procedures.

The most important phase of the project required developing a process whereby it is possible to enter the main body of the compressor, remanufacture and close.

The closure must be precise as the outer casing plays an important part in determining the compressor’s performance and reliability. Re-welding the case precisely and ensuring ultra cleanliness within the compressor was a challenge. A technology was developed and subsequently patented.



Working in parallel with the development group were manufacturing engineers. Their task was to perfect the best, most efficient manufacturing method for what became known as “the grave to cradle process”. By the end of last year, the product had passed its extensive testing programme.

Early sales’ targets have been exceeded and a bright future is expected. The Rescroll now provides the industry with an environmentally-sound alternative when purchasing a replacement compressor.

J&E Hall 01322 394420