Record of Performance
Introduction to some of our record of performance for maintenance and service
Maintenance and Service for Decanter Centrifuges
Maintenance and service for decanter centrifuges
We provide maintenance and service for decanter centrifuges used in steelworks. We repair fitting parts by plating and thermal spray, hard-facing of flights, dynamic balance corrections, and test runs. We also perform welding repairs for casings in some cases.
Rewinding and hard-facing of flights
We can also repair screws. Repairs are performed by rewinding or hard-facing worn flights. After repair, the outer diameter is machine-polished to predetermined dimensions.
Dynamic balance corrections
This process is indispensable to the maintenance and service for decanter centrifuges. Safe and stable operations are realized by vibration suppression during operations through dynamic balance corrections.
Maintenance and service for differential gear units
The differential gear units mounted on decanter centrifuges include gear devices with planetary gears, cyclo speed reducers with cycloid discs and hydraulic motor speed reducers with a hydraulic mechanism. It is important to grasp the conditions of each tooth surface, fitting dimensions, journal clearances, etc.
On-site installation of decanter centrifuges
We can also provide on-site installations of decanter centrifuges and test runs at customer request.
To maintenance and service items for decanter centrifuges
Maintenance and Service for Speed Reducers
Maintenance and service for overseas-made speed reducers
We provide maintenance and service for speed reducers for parts which cannot be procured from overseas manufacturers. We perform fabrications of spiral bevel gears, investigations of parts, and modifications for the purpose of complying with standard products of oil seals, etc.
Fabrication of gears
Even in a case where a gear is damaged and requires fabrication, the same gear can be fabricated by reverse engineering from a sound part. We offer a record of performance in fabricating φ700 spiral bevels and pinion gears.
Tooth contact checks
For parts that use gears, including speed reducers, we check and adjust tooth contacts to confirm that the teeth are in proper contact with each other.
Test runs of speed reducers
We collect data for several hours by test runs after maintenance and service to confirm that speed reducers operate normally.
To maintenance and service items for speed reducers
Maintenance and Service for Roots Blowers
Maintenance and service for large roots blower
We provide on a regular basis maintenance and service for large machines exceeding 10t which are used at smelter works.
Maintenance and service for 3-lobe roots blowers
We provide maintenance and service for 3-lobe roots blowers for blowing air from chemical plants. We also offer experience in improving performance by adjusting clearances that have expanded due to wear by machining.
Repairs for roots blowers
We perform thermal spray repairs according to inspections and conditions after disassembly.
By using a clearance gauge, we check and adjust to confirm that clearances are within specified limits.
To maintenance and service items for roots blowers
Maintenance and Service for Pumps
Assembly of double suction pumps
We perform assembly of large pumps for paper manufacturing companies. We perform acceptance inspections for newly-fabricated products, product checks, specification confirmations, specification conformance tests and other related work.
Centering of single suction pumps
We perform centering work on new pumps before in-plant installation.
Repairs for single suction pumps
We also offer a record of performance for maintenance and service for small pumps, including various inspections and repairs for fitting parts.
Maintenance and service for high-pressure multistage pumps
We perform assembly through the inspections of each fitting part, inspections of shafts for bending, penetrant inspections for impellers, cleaning and care for scales, etc.
To maintenance and service items for pumps
Maintenance and Service for Mechanical Seals
Maintenance and service for rotary joints
We provide maintenance and service by replacement of mechanical seals, repairs for fitting parts, and fabrication of parts. We check performance by performing pressure tests and test runs after completion of assembly.
Maintenance and service for seal units
We also excel at maintenance and service for rotating machines incorporating mechanical seals at the factory certified by mechanical seal manufacturers. We offer a record of performance in maintenance and service for dispersers, agitators, and other related equipment.
We perform airtightness tests on mechanical seals after maintenance and service, and ship those that have passed specified operation tests.
To maintenance and service items for mechanical seals
Maintenance and Service for Various Rotating Machines and Other Machines
Dynamic balance corrections for cage mills
We perform dynamic balance corrections for mills for the mining industry. We also perform cleaning and removal of adherents before corrections, and restore wear resistance by hard-facing.
Maintenance and service for classifiers
We provide maintenance and service for classifiers that rotate at 4,000 rpm. We contribute to stable operations by performing repairs for welded parts, repairs for fitting parts, selection of bearings according to rotation speed, etc., as well as precision classification and quality stabilization by vibration suppression.
We provide maintenance and service for hydraulic motors. We measure fitting parts, replace consumable parts and pistons. After assembly test runs are performed where possible.
Maintenance and service for other rotating machines
We provide maintenance and service necessary for various rotating machines, including repairs for fitting parts, repairs for shafts, replacement of parts, and dynamic balance corrections.
To maintenance and service items for various rotating machines and other machines