Learn about BlowVac Systems meticulous rotary screw compressor airend rebuild process

Your air end is off loaded and taken immediately to the disassembly area which contains overhead crane and oil pit for collecting waste oil. All shipping documents are then forward to the office to be assigned a work order number, and a folder is generated for disassembly, teardown and spec sheets. This folder follows the air end through the entire rebuilding process to ensure accurate documentation.
Once the air end is disassembled, damage and measurements are recorded, and pictures are taken identifying the problem areas. A report is generated to record the damage to front & rear end plates, the sealing strips and bearing journal.
At this point a quote is written for the rebuild and submitted to the customer for approval.
The disassembled air end is then placed in one of the self-contained cleaning systems.
Once we receive the OK and Purchase Order number from the customer, all parts that require work are brought to different areas of the shop and the repairs begin
If damaged, the front male rotor bearing journal is mounted and turned on a lathe and will also be metalized and ground according to specs.
The main bore area if damaged will be bored & sleeved on a vertical boring mill.
Seal strips are metalized & ground to specifications
Depending on the extent of the damage, the above work normally takes 5 to 7 days to complete.
All components are then rewashed and taken to the assembly area, where all the bearings, seals, gaskets, and related materials needed to complete the assembly are pulled from inventory.
Before assemble takes place all the bearing pockets, bores, and alignments are rechecked. The two rotors are then checked for proper balance and alignment.
The bearings are removed from the boxes and re-measured for proper fit before installing.
before installing. To ensure that the manufacturer’s specs are being met, the unit is continually measured and re-checked for accuracy.
Upon completion all open ports are plugged with plastic caps and the inlet taped. The air end is now ready to be skid mounted and painted.
As units enter the shipping area all necessary shipping documents and start-up procedures are attached to the unit, and trucking details are arranged.