Main Visual

MIKUNI’s Technology Satisfies Your desire

MIKUNI’s products meets the trend like large horizontal type compressor which pursue cost advantages.

Based on current trend of market, industries and technology, we examined Quality Goal, Production Engineering, Production Equipment and Manufacturing Cost. For example, so far 750kw class compressor had two axis but newly one axial two cylinder high load high output model was developed and production for them is prepared.

Point of design and development

Compactification: Cylinder is reduced from 4 to 2 for two axis design. Development of high load high out put crank case realizes compact shape. It makes smaller installation space and reduce the number of parts.

Cost Advantage: To compactify compressor lead to reduce cost of products and installations at the site.

Crank Case and Cylinder

Crank Case Data

Case Type One Axial Two Cylinder
Power Maximum Power 900kW
Normal Power 750 kW
Designed rotation speed 500min-1
Maximum Cylinder Diameter φ700mm
Piston Rod Diameter φ65mm

Outline Drawing (General Arrangement)

Outline Drawing

Please refer to outline drawing (General Arrangement) here.

Internal Structure and Name of Each Parts

Mikuni’s workmanship is applied from main component to small packing for details.

Internal Structure and Name of Each Parts

Internal Structure and Name of Each Parts
① Discharge Valve ⑦ Suction Valve ⑬ Connecting Rod
② Piston Ring ⑧ Piston ⑭ Crosshead Pin
③ Rider Ring ⑨ Piston Rod ⑮ Crosshead Pin Metal
④ Cylinder ⑩ Crank Case ⑯ Crosshead
⑤ Gland Packing ⑪ Crank Pin Metal ⑰ Main Metal
⑥ Distance Piece ⑫ Crank Shaft

Internal Structure and Name of Each Parts

Internal Structure and Name of Each Parts
① Discharge Valve ⑩ Crank Case
② Piston Ring ⑪ Crank Pin Metal
③ Rider Ring ⑫ Crank Shaft
④ Cylinder ⑬ Connecting Rod
⑤ Gland Packing ⑭ Crosshead Pin
⑥ Distance Piece ⑮ Crosshead Pin Metal
⑦ Suction Valve ⑯ Crosshead
⑧ Piston ⑰ Main Metal
⑨ Piston Rod

Lubricant Genealogy

Lubricant Genealogy

Cylinder

Cylinde has multiple structuire which is consists of gas path and water path. The material of cylinder is changed to FC, FCD,SCS, SCF and others depend on the type of gas to be compresed and pressure. Also cylinder liner type is manufactured.

Cylinder

Piston Ring & Rider Ring

Piston ring is made of self-lubricating materials such as carbon and PTFE. The rider ring prevents metal contact between the piston and cylinder.

>Piston Ring & Rider Ring

Suction & Discharge Valve

Cylinder valve has high durability and reliability because of high frequency of open and close fuction which is combinated to reciprocating movement of pisoton and have to stand severe condition like exposing ompressed gas with high temperature.

Suction & Discharge Valve

Gland Packing

Gland packing prevents leakage of compressed gas from the lower part of the cylinder along the piston rod. Like piston ring, this is made of self-lubricating materials including carbon and PTFE.

Gland Packing

Movement of Piston