Packing A and Packing B for different types of Mitsubishi EDM machines

Packing A and Packing B are EDM sealing wear parts for Mitsubishi wire EDM machines (including FA, FX, CX, MV series). 

They serve as critical shaft seals and fluid seals in the machine’s axis, head, and water circulation systems.
Packing A: Primary dynamic seal for high‑precision moving parts, resisting dielectric fluid leakage and maintaining machining stability.
Packing B: Auxiliary or static seal matching Packing A, enhancing sealing durability and extending maintenance intervals.

Made to Mitsubishi original specifications, they ensure consistent water/oil sealing, reduce downtime, and preserve machining accuracy for long‑term production.

X055C985G51 X058D685H06 D328000 Mitsubishi MV1200​ Packing

X055C985G51​ Mitsubishi MV1200​ Packing A​​

X058D685H06 D328000 Mitsubishi MV1200​ Packing B​​

Mitsubishi EDM machine FA30, FX30

X058D380H06 Packing A FX30 FA30​
X058D685H03 DB15700 Packing B FA30,FX30

Mitsubishi EDM machine FA20, FX20

X058D380H05 FA20 Packing A
X058D685H02 FA20 Packing B

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