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Swing Assembly · Swing Planetary

DH55 Swing Secondary Reducer Swing Assembly

Machine-fit swing planetary assembly — DH55 Swing Secondary Reducer

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DH55回二总成 excavator swing planetary assembly
Swing Planetary Assembly

DH55回二总成

Machine-fit swing planetary assembly — DH55 Swing Secondary Reducer
Full specsAsk us for the data sheet
ConditionNew · OEM-standard aftermarket
Warranty6–12 months
Lead timeStock 48 h · Non-stock 5–15 days
WhatsApp this model Email inquiry ← Back to catalog

Swing planetary assemblies are listed by machine fitment and stage. Match the machine model and tooth counts. Send a photo of the old assembly on WhatsApp and we confirm.

About This Swing Assembly

Swing secondary assemblies (回二总成) — the second-stage planetary carrier and gear set inside the swing reducer. Listed by machine fitment: DH55/225-7, E318/E320C, LG200/225, EX200-5, EC210/EC360, PC120-6/200-6/200-7/240-8, SK200-6/200-8, SY135, SH200, R210.

The DH55回二总成 is an OEM-standard aftermarket replacement built to the original mounting, spline and port specification. Bolt-on installation — no machining or adaptation required.

Every unit is inspected and pressure-checked before dispatch and ships with a test report. Stock models leave within 48 hours; non-stock units are typically ready in 5–15 days. Sea, air and express shipping are available worldwide, and our team answers quote requests within 12 hours — usually much faster on WhatsApp.

More Swing Secondary Assembly (回二)

E318回二总成 excavator swing planetary assemblyE318回二总成LG200回二总成 excavator swing planetary assemblyLG200回二总成EX200-5回二总成 excavator swing planetary assemblyEX200-5回二总成EC210回二总成 excavator swing planetary assemblyEC210回二总成LG225回二总成 excavator swing planetary assemblyLG225回二总成DH225-7回二总成 excavator swing planetary assemblyDH225-7回二总成E320C回二总成 excavator swing planetary assemblyE320C回二总成EC360回二总成 excavator swing planetary assemblyEC360回二总成

View all 18 models in the catalog →

What does 回二总成 mean?

It is the second-stage planetary assembly of the swing reduction gearbox (回转二级总成) — carrier, planet gears, pins and thrust washers as one unit. 回一 is the first stage.

How do I know whether the first or second stage failed?

If the swing is weak and noisy, remove the gearbox and inspect both stages. Usually the stage nearest the failed bearing shows the wear. Send photos and we identify the stage.

Can I buy the individual gears instead?

Planet gears, pins, carriers and thrust washers are available separately for the popular frames — tell us the stage and machine model.

Get a Quote in 12 Hours

Send your part number, machine model or a nameplate photo — WhatsApp is fastest.

WhatsApp: +86 134 5036 5883 Email: [email protected]
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