HY170 CNC 4th Axis Rotary Table
Compact model for smaller workpieces and limited table space.
Roller Cam 4th Axis Rotary Table for CNC Machining Centers
The HY250 is a larger model in our 4th axis range, built on the same roller cam drive platform as the HY170, HY200 and HY320. It is positioned for workpieces that need more table area and greater clearance from the machine spindle.
The HY250 is a CNC 4th axis rotary table for machining centers, built on a roller cam drive system. Its larger table area suits parts that cannot be comfortably supported on the smaller models in the range.
Typical use is indexed and continuous rotary work on shafts, flanges, fittings and similar rotationally symmetric parts, with the workpiece supported either by a chuck, a fixture plate or a combination with a suitable tailstock.
Technical data for the HY250 — including table diameter, center height, workpiece envelope, weight capacity, accuracy figures, motor and encoder configuration — is published on this page only after verification by our engineering team. Fields that depend on the selected motor, encoder and workholding option are marked On request; send us the machine and control details and we will return the matching configuration.
If you send us your machine brand, machine model and controller, we can confirm the suitable HY250 configuration before quotation.
Only verified data supplied by the manufacturer is published in this table. No values are estimated or interpolated.
| Specification | HY250 | Notes |
|---|---|---|
| Dimensions & weight | ||
| Table diameter | 250 mm | — |
| Center height | 160 mm | — |
| Overall dimensions (L × W × H) | On request | — |
| Net weight | 85 kg | — |
| Through bore / center bore | 50 mm | — |
| Performance | ||
| Positioning accuracy | ±15" | Published only from verified test data |
| Repeatability | ±5" | Published only from verified test data |
| Backlash | On request | No backlash claim is published without verified data |
| Max. rotation speed | 50 rpm | — |
| Max. load capacity | 120 kg (vertical) / 240 kg (with tailstock) | — |
| Drive & motor | ||
| Drive type | Roller cam | Product family platform |
| Reduction ratio | 60 | — |
| Motor | FANUC βiF8 | — |
| Encoder | On request | — |
| Drive interface | On request | — |
| Clamping & workholding | ||
| Clamping method | Air brake 0.5 MPa / Hydraulic brake 2 MPa | — |
| Clamping torque | 115 / 350 N.m | — |
| Chuck interface | On request | — |
| Tailstock compatibility | On request | — |
Values marked “On request” depend on the motor, encoder and workholding option selected. Tell us the machine model and control, and we will confirm the exact configuration and supply the matching drawing.
Design features of the HY250 platform. Detailed figures, options and verification status are listed in the specification and configuration sections.
Rotary motion is transmitted through rolling elements in continuous engagement with the cam profile.
Intended for workpieces that need more support surface and greater clearance from the spindle.
Configuration is matched to your machine and controller. Supplied configuration to be confirmed.
Chuck and fixture-plate interface options are confirmed per model — see configuration options.
Can be combined with a matched tailstock for longer shaft-type workpieces. Matching details to be confirmed.
Dimension drawings, installation information and test records are provided as available per unit.
The HY250 uses the roller cam drive platform shared across the 4th axis range, sized for its larger table. Backlash and accuracy values are published only from verified test data.
A cam profile drives rolling elements to produce rotary motion in a compact drive package.
The drive structure is designed to support machining loads acting on the rotary axis.
Suited to indexed positioning for multi-side machining operations.
Rolling contact in the drive train is designed to support durable operation in production environments.

The HY250 is positioned for larger workpieces within the 4th axis range, including longer shaft-type parts and larger disc parts. Final suitability depends on your workpiece data, fixturing and machine.
No cutting parameters, cycle times or customer examples are published on this page. Application content is developed from verified information only.
Compatibility of the HY250 with a specific machine depends on factors on both the machine side and the rotary table side.
CNC compatibility depends on the machine model and control configuration. Please contact us for confirmation.
Controller compatibility depends on the machine and on the control configuration. Send us the machine model and controller for the HY250 and we will confirm whether it can be paired, and with which motor and encoder option.Configuration is defined together with your machine data. Available options are listed below and confirmed case by case.
| Configuration | Available options | Status |
|---|---|---|
| Chuck options | On request | Awaiting data |
| Tailstock options | On request | Awaiting data |
| Accessory options | On request | Awaiting data |
| Motor option | On request | Awaiting data |
| Encoder option | On request | Awaiting data |
| Controller interface / cable | On request | Awaiting data |
| Mounting interface | On request | Awaiting data |
Related products for building a complete setup: tailstocks, chucks and mounting accessories.
General integration sequence for a 4th axis rotary table. Machine-specific procedures, torque values and alignment data are supplied with the documentation for each unit.
Check available machine table area, T-slot or mounting pattern and cable routing path.
Mount the rotary table using the mounting interface and alignment method given in the unit documentation.
Connect motor and encoder according to the drive and interface configuration confirmed for your machine.
Verify rotation direction, reference position and clamping function before production use.
The HY250 is one of four core 4th axis models. If a smaller or larger table is required, the models below cover the rest of the range.
Complete the setup with tailstocks for workpiece support, chucks for workholding and mounting accessories — see also the 4th axis rotary table range overview.
Send us your machine details and the parts you machine. We will confirm whether the HY250 or another model in the range is the suitable configuration.