Product image · configuration may vary

XT20 XT20 Series

XT20 Series Boring & Milling Power Head

Compact boring and milling power head for CNC special machines, modular automation and retrofit projects.

Spindle interfaceMT2 or ER25
Maximum listed speedUp to 8,000 rpm
Motor range0.55–1.1 kW (catalog range)
Bearing arrangement7005 AC/DB matched groups

For a faster recommendation, share the workpiece material, machining operation, target speed, accuracy requirement and mounting arrangement.

Drawing-led configurationApplication reviewGlobal project support

Final specifications depend on the workpiece, tooling, cutting load, duty cycle, motor and machine interface.

XT20 series · boring & milling power head

Compact spindle performance, configured around your machine.

XT20 is designed for machine builders and retrofit teams that need a compact spindle unit for boring, milling and combined machining. Select the spindle interface, motor, drive and mounting arrangement to match the process instead of adapting the machine around a fixed package.

MT2 / ER25Spindle interface options

Up to 8,000 rpmMaximum listed speed

0.55–1.1 kWListed motor range

7005 AC/DBMatched bearing groups

Application fit

Where XT20 fits best.

The compact enclosed format supports practical integration where spindle space, mounting clarity and configurable drive choices matter.

Special-purpose machines

Boring, milling and combined machining stations built around a defined workpiece and cycle.

Automated production cells

Drilling and boring systems that require a compact spindle unit for modular integration.

Retrofit and modular lines

Machine upgrades and combination lines where the spindle, motor and mounting arrangement must be matched to an existing structure.

Engineering data

Key specifications.

Housing	Confirm the housing material and treatment on the configuration drawing; the cited XT20 catalog table does not specify a material grade.
Spindle material	Confirm the spindle material, heat treatment and inspection requirements for the ordered configuration; the cited XT20 catalog table does not specify a material grade.
Bearing arrangement	7005AC/DB is listed for both bearing positions in the catalog. Confirm the bearing quantity, arrangement and precision class on the configuration drawing.
Listed roundness	≤0.004 mm; final inspected value is confirmed with the selected configuration
Spindle options	MT2 or ER25
Maximum listed speed	Up to 8,000 rpm, depending on the selected spindle and drive configuration
Motor options	Catalog motor range: 0.55–1.1 kW, with three-phase asynchronous or servo spindle motor configurations. Confirm the selected motor rating and drive ratio.
Motor installation	Front-mounted or rear-mounted configurations
Lubrication	High-speed bearing grease
Listed temperature rise	≤20°C under the specified operating and inspection conditions
Drive options	Synchronous belt, multi-rib belt or V-belt pulley configurations

The cited catalog lists reference values for preliminary selection. Its roundness and temperature-rise figures are not a guarantee of the finished workpiece accuracy or of performance under every operating condition. Confirm the speed limit, bearing arrangement, motor, materials, interfaces and acceptance conditions on the configuration drawing and quotation before ordering.

Catalog reference: See the 2025 JNYO product catalog, printed pages 01–02 (PDF page 4) for the XT20 parameter table and front-/rear-mounted motor layouts. This 2025 scanned reference catalog contains Chinese and English text: 47 PDF pages, 77.15 MB (73.57 MiB). If your reader does not jump, enter PDF page 4 manually; PDF page positions differ from printed page numbers. Use this catalog for preliminary review and request the current configuration drawing before ordering.

Configuration choices

Match the spindle unit to the machine design.

Tool interface

Choose MT2 or ER25 according to tooling, process and changeover requirements.

Motor and drive

Confirm power, speed range, belt type and asynchronous or servo motor preference.

Mounting layout

Select front- or rear-mounted motor arrangement around the available machine envelope.

Engineering documents

Request the dimensional drawing, 3D file and configuration confirmation before final integration.

Selection workflow

A clearer path from application to quotation.

Define the process

Share the workpiece, operation, tool and target cycle.

Confirm cutting needs

Provide speed, accuracy, load and surface-finish requirements.

Check integration

Review mounting space, orientation, drive and mechanical interfaces.

Approve the configuration

Confirm the drawing, motor option and quotation before ordering.

Frequently asked questions

Questions before selecting XT20.

Is 8,000 rpm available on every XT20 configuration?

No. It is the maximum listed speed. The confirmed limit depends on the spindle interface, bearings, drive, motor and operating conditions. Use the approved drawing and quotation as the final reference.

How should I choose between MT2 and ER25?

Choose according to the tooling and process. MT2 suits compatible taper-shank tooling, while ER25 supports collet-based tool clamping. JNYO can review the tool and machining requirement before configuration.

Can the motor be mounted at the front or rear?

Yes. Front- and rear-mounted arrangements are listed. The available machine envelope, belt path and maintenance access should be checked before confirmation.

Can JNYO provide drawings and a 3D file?

Dimensional drawings, 3D files and configuration advice can be requested for integration review. Please include the machine interface and application details.

What information is needed for a quotation?

Send the workpiece material, machining operation, tool details, target speed, accuracy requirement, mounting arrangement, motor preference, quantity and destination country.

Prepare your selection information.

Use the Boring and Milling Head Specification Checklist to organize the model, tooling, machining duty and installation requirements before an inquiry. The checklist helps prepare the discussion; final configuration requires the applicable drawing and technical confirmation.

Engineering files

Move from product review to machine integration.

Use the model as a starting point. The approved dimensional drawing and configuration record remain the final integration reference.

01DrawingRequest dimensional drawing

Confirm mounting faces, center height, spindle interface and machine envelope.

Send application brief → 02X_T model availableDownload available 3D model

Use the available XT20 model for an initial envelope review, then confirm the ordered configuration.

Download model ↓ 03Selection reviewCheck the application with JNYO

Share the workpiece, tooling, speed, load, accuracy and motor preferences.

Request engineering review ↗

Send the application before choosing the configuration.

JNYO will use the process and interface details to narrow the spindle, motor, drive and mounting options before quotation.

Contact JNYO
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