precision // machining // fmt standard
RUP-280 Grinding Machine
construction // process
Technical description
The RUP-280 grinding machine is designed for precision machining of external and internal rotational surfaces, as well as flat faces and flanges. The machine's design ensures operational stability and high accuracy of achieved parameters.
Machine Characteristics:
Geometrical Parameter Capabilities:
The achieved parameters ensure high surface quality and repeatability in processes requiring precision machining.
Machine Characteristics:
- grinding speed up to 45 m/s
- hydrostatic grinding wheel spindle bearings
- hydrostatic guideways ensuring high reliability and durability
Geometrical Parameter Capabilities:
- roughness: Ra ≤ 0.16 μm
- roundness: 0.0015 mm
- cylindricity: 0.005 mm / 500 mm
- diameter repeatability: ≤ 0.005 mm
The achieved parameters ensure high surface quality and repeatability in processes requiring precision machining.
applications // process // part
Applications
Typical selection scenarios for this model in FMT machine parks - no universal “does everything” claims.
- Cylindrical grinding of shafts and bores for surface-quality requirements
- Toolmaking, regeneration and dimensionally repeatable batches
- Work in FMT machine parks with manuals and manufacturer service support
parameters // dimensions // drive
Technical parameters
Full catalogue table for this model - values from the FMT technical sheet.
| Characteristic data | Unit | Value |
|---|---|---|
| Max. grinding length | mm | 500 lub 1000 |
| Max. grinding speed | m/s | 45 |
| Max. OD grinding diameter | mm | 280 |
| Wheelhead | ||
| Wheel diameter max./min. | mm | 400 / 260 |
| Wheelhead swivel angle | stopnie | +/- 30° |
| Rapid hydraulic traverse | mm | 50 |
| Zakres posuwu wgłębnego – zgrubny | m/min. | 0,3 – 6,0 |
| >– wykańczający | m/min. | 0,08 – 3,0 |
| Workhead | ||
| Swivel toward / away from operator | stopnie | 30° / 90° |
| Workhead spindle taper | Morse’a | No 4 |
| Workhead stepless speed range | rpm | 25 ÷ 500 |
| Internal grinding | ||
| Max. ID grinding diameter | mm | 200 |
| Spindle speed range a) 40 × 250 | rpm | 10000/15000/30000 |
| > b) 70 × 250 | rpm | 5700/8560/17120 |
| Table | ||
| Swivel toward wheelhead/operator for: | ||
| > L = 500 | stopnie | 14° / 7° |
| > L = 1000 | stopnie | 7° / 5° |
| Table feed speed range | mm/min. | 75 – 4000 |
| Min. hydraulic table feed | mm | 3 |
| Tailstock | ||
| Max. sleeve travel | mm | 25 |
| Tailstock sleeve taper: manual / hydraulic | Morse’a | Nr 2 / Nr 4 |
| Total power requirement | kW | 10,5 |
| Grinder mass L = 500 / L = 1000 | ||
documentation // dtr // pdf
Technical and operating documentation (DTR)
Download manufacturer documentation for selection, commissioning and maintenance.
equipment // options
Equipment
Optional
- Diamond dressing device for internal grinding wheel
- Manual tailstock
- Grinding wheel holder
- Diamond dresser
- Additional grinding wheel 400x50x127
- Digital readout with X-axis optoelectronic linear scale for grinding wheel position measurement with 0.001 mm resolution in +/-0.003 mm accuracy class
- Digital readout with two optoelectronic linear scales (L=500) for X and Z axes
- Digital readout with two optoelectronic linear scales (L=1000) for X and Z axes
- Internal grinding attachment
- Internal grinding spindle Ø 40x250 complete with change gears and belts plus reduction sleeve + 3 extensions
- Internal grinding spindle Ø 70x250 complete with gears and belts + 3 extensions
- Part support stand for loading and unloading: left, right
- Any equipment from the Bison Bial catalogue or other manufacturers
series // compare // select
Other models in the series
model // news // source
From this model’s deployments
A news item linked to this model - post context, the catalogue machine, and the full article.
- 01 Context In precision grinding the margin is the stiffness of the machine-tool-part-fixture system, not the nameplate.
- 02 Solution RUP-280 Grinding Machine
- 03 Source — Geometry verified under load. RUP-280 grinder in production. · Read article
fairs // deployments // shop floor
Model case studies and news
Selected posts linked to this offer - real FMT events and deployments, not tag farms.
-
Geometry verified under load. RUP-280 grinder in production.
In precision grinding the margin is the stiffness of the machine-tool-part-fixture system, not the nameplate. Read case -
RUP-280 grinder: hydrostatic stiffness
The RUP-280 universal grinder is built for parts that need absolute dimensional stability, with hydrostatic spindle bearings. Read case -
RUP-280 grinder installed on time
FMT Tarnów delivered a precision RUP-280 grinder on time, including production schedule and transport. Read case
manufacturer // config // service
Model FAQ
Short answers to common buying questions - no fake ratings or empty blocks.
What stands out about the RUP-280?
RUP-280 is a shaft-and-bore grinder focused on hydrostatic system stiffness and dimensional repeatability - specs and gallery are on the product page.
Is there a manual for the RUP-280?
If the PDF is in the media library, the DTR link is on the product page. In the enquiry you can request the full commissioning documentation pack.
What are RUP grinders for?
RUP is FMT’s cylindrical grinding line for surface finish and dimensional repeatability - typically shafts and bores in precision production, with hydrostatic system stiffness on models in this family.
Are RUP grinders made by FMT in Poland?
Yes - RUP is a series from Polish manufacturer FMT Tarnów (Wierzchosławice): build, configuration and service under one factory brand.
quote // leasing // installation
Quotation request
Give your contact details and requirements. The enquiry goes to sales with the machine model marked.