Machine Comparison
Citizen Miyano BNA-42GTY vs Citizen Miyano BNA-42SY
Citizen Machinery vs Citizen Machinery · Mill-Turn Machines
Summary
The Citizen Miyano BNA-42GTY and the Citizen Miyano BNA-42SY are two mill-turn machines from the same Citizen Miyano family, both aimed at short bar parts machined on both ends. Citizen publishes few comparable figures for this pair: the rebuilt table has a single row, machine weight.
On that row the Citizen Miyano BNA-42GTY is the lighter machine at 3,750 kg against 3,880 kg for the Citizen Miyano BNA-42SY. Beyond that, the difference lies in how Citizen positions them: the GTY for jobs that lean on driven tools in a tight cell, the SY for off-center drilling and milling on its Y stroke and for shops adding back-side machining for the first time.
Specifications Comparison
| Specification | Citizen Miyano BNA-42GTY | Citizen Miyano BNA-42SY |
|---|---|---|
| Machine Weight | 3,750 kg | 3,880 kg |
Advantages
Citizen Miyano BNA-42GTY
- Lighter machine at 3,750 kg against 3,880 kg
- Positioned for jobs that lean on driven tools
- Aimed at cells where floor space is the limit
Citizen Miyano BNA-42SY
- Positioned for off-center drilling and milling on its Y stroke
- Aimed at shops moving from a single-spindle lathe to back-side machining
Verdict
With only machine weight to compare, choose by job rather than by figures. The Citizen Miyano BNA-42GTY fits cells that run driven-tool work on short bar parts and have little floor to spare. The Citizen Miyano BNA-42SY fits shops stepping up from a single-spindle lathe that want off-center holes and flats on the back side. Ask Citizen for travels, tool counts and spindle data before ordering, since the table does not list them.