Spare Parts Supply

QualRotate supplies oil-film sliding bearings for process gas compressors, including radial, thrust and combined bearing configurations. Bearing solutions cover one-piece and split radial sliding bearings, tilting-pad journal bearings, tilting-pad thrust bearings, and combined bearings with copper-based pads. Bearing support is based on bearing-related calculations, including damping, energy dissipation, clearance analysis, journal support-point assessment and oil-film thickness evaluation. In addition to spare supply, bearing solutions may incorporate copper-based liners with enhanced thermal conductivity to mitigate high-temperature operating conditions.

QualRotate maintains dedicated dry gas seal testing capability with the following operating ranges: pressure up to 25 MPaG; rotational speeds of 20,000 / 15,000 / 48,000 rpm (three test units); shaft diameters from 20 to 300 mm, extendable to 400 mm via an electric spindle base. The test systems are equipped with rated power of 50 / 40 / 18 kW, and starting torque rated at 70 / 128 / 3.6 N·m, with maximum torque up to 168 / 254 N·m.

For rotor-related spare parts and refurbishment, QualRotate provides journal repair and bushing replacement services supported by a professional technical team and advanced equipment. Journal repair addresses common rotor journal issues such as wear, scratches, and corrosion through precision machining and welding repair processes, effectively restoring dimensional accuracy and surface quality. This ensures proper fitting and normal assembly, reduces vibration and noise, improves operational stability, and extends rotor service life while lowering replacement costs.

In addition, bushing replacement services are provided when bushings are severely worn and no longer able to perform sealing or support functions. QualRotate supplies matching bushing components and carries out precise installation to ensure proper interaction with related components. Through improved sealing and lubrication performance, friction and energy consumption are reduced, leakage risks are minimized, and rotor support stability and overall operating efficiency are enhanced.

For casing-related spare parts and repair support, QualRotate provides casing welding and repair welding services utilizing programmable robotic arm welding systems. The welding setup features high photoelectric conversion efficiency and high-brightness output, ensuring stable energy delivery and consistent weld quality. With a highly integrated system design, the equipment offers complete drive and control functions, standard power supply compatibility, and a user-friendly operating interface. The system is designed for simple operation and convenient installation, supporting efficient execution of casing welding and repair tasks while maintaining quality and process stability.

QualRotate provides spare parts for reciprocating compressors, supplying essential components for routine maintenance, overhaul, and component replacement. Our spare parts scope includes key functional and wear parts associated with cylinder assemblies, pistons, valves, capacity control systems, and unloading mechanisms.

Spare parts selection is based on actual operating conditions and maintenance requirements, ensuring proper clearance control, stable gas flow performance, and reliable capacity regulation. Through structured spare parts support, maintenance planning can be carried out more efficiently while maintaining compatibility with existing reciprocating compressor designs and system configurations.