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Engineering components for special-purpose machines

XT40-1 Servo Facing Head

XT40-1-BT40-SMB is a servo facing-head configuration for special-purpose machines that need controlled radial movement at the tool. Review the workpiece, stroke, interpolation, spindle speed, servo control and machine envelope before integration.

  • Spindle interfaceBT40
  • Published speed1,600 / 1,200 rpm published options
  • Assembly reference110 kg published facing-head assembly reference
  • Published accuracy≤ 0.005 mm repeat positioning

Send the operation, workpiece, tooling, target speed, load, duty cycle and machine interface drawing for configuration review.

Drawing-led configurationApplication reviewGlobal project support

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

XT40-1 BT40 servo facing head

A BT40 servo facing head for machining faces, steps, contours and bore features on fixed or non-rotating workpieces with CNC interpolation.

XT40-1-BT40-SMB is a servo facing-head configuration for special-purpose machines that need controlled radial movement at the tool. Review the workpiece, stroke, interpolation, spindle speed, servo control and machine envelope before integration.

BT40Published spindle interface
1,600 / 1,200 rpm published optionsPublished speed options
≤ 0.005 mmRepeat positioning reference
110 kg published facing-head assembly referencePublished assembly reference

Application fit

Start with the workpiece and process. The model name is only a starting point; final selection follows the tooling, load and real machine layout.

01

Fixed-workpiece machining

Machine a fixed or non-rotating workpiece when a conventional rotating table or lathe arrangement is not the right fit.

02

Interpolated faces and contours

Use CNC interpolation for controlled facing, steps, tapers and other radial tool movements.

03

Internal and external features

Evaluate internal or external faces, threads, linear boring, chamfers and multi-step boring in one process plan.

04

Turning-function retrofit

A servo facing head can support selected lathe-like or U-axis-like operations after the machine control and structure are checked.

Published selection data

Model platform XT40-1 BT40 servo facing head
Facing-head model FA-408 / FS-620 options are shown in the published data
Spindle interface BT40
Published maximum speed 1,600 rpm / 1,200 rpm options
Bearing arrangement 33011 x 2 and 7010C x 2 (DB) are shown for the spindle; the facing-head bearing is 760202 TN1 x 2
Ballscrew bearing block 760202 / DB / 2RS
Facing-head slider stroke 8 mm / 20 mm options
Published repeat positioning accuracy ≤ 0.005 mm
Published roundness ≤ 0.004 mm; confirm measurement point, method and acceptance conditions
Lubrication High-speed bearing grease
Published temperature rise ≤ 20°C under the conditions represented by the published data
Published maximum power ≤ 7.5 HP
Ball screw Φ16 x 5
Assembly weight 110 kg is shown in the published facing-head image data
Integration file Request the matching FA-408 / FS-620 dimensional drawing, servo data and compatible 3D file

The published facing-head data shows FA-408 / FS-620, 1,600 / 1,200 rpm, 8 mm / 20 mm slider-stroke options and a 110 kg assembly reference. Confirm the exact model, stroke, servo, interpolation and acceptance conditions for the order.

Choose the configuration around the machine

Compare the physical arrangement, tool interface, ATC and coolant requirements before fixing the motor and control specification.

Five inputs for a useful recommendation

Operation

Boring, milling, drilling or a combined process.

Workpiece

Material, feature size and required cycle time.

Tooling

Tool type, diameter, interface and target speed.

Performance

Cutting load, finish, accuracy and duty-cycle requirements.

Integration

Mounting drawing, center height, envelope, orientation and control.

XT40-1-BT40-SMB selection questions

Confirm these items before the drawing and quotation are approved.

What is the difference between a servo facing head and a conventional boring head?

A servo facing head adds controlled radial tool movement through a facing-head slide, enabling selected faces, steps, contours and bore features on a fixed or non-rotating workpiece. The machine structure and CNC interpolation must support the operation.

Which FA-408 or FS-620 option should I choose?

Choose from the workpiece diameter, required radial stroke, tool load, speed, accuracy and available envelope. The published data shows 8 mm / 20 mm slider-stroke options; confirm the exact model in the drawing and quotation.

Are 1,600 rpm and 1,200 rpm available on the same build?

They are published speed options associated with the facing-head data. The final limit depends on the exact head, bearing arrangement, servo, tooling, load and duty cycle.

Can the facing head replace a lathe or U-axis?

It can support selected lathe-like or U-axis-like operations, but it is not a universal replacement. Confirm interpolation, rigidity, workholding, tool access, control logic and the required acceptance test.

What information is needed for a servo facing-head quotation?

Send the workpiece drawing, feature diameters, required stroke, tool details, target speed, cutting load, interpolation method, servo/control system, machine interface, quantity and destination country.

Catalog source and configuration limits

JNYO product catalog, PDF page 30; Chinese edition, approximately 74 MB.

The facing-head table is a separate specification from the ordinary boring spindle. Where speeds, strokes or bearings are separated by a slash, the source does not fully map each value to each variant; confirm the complete combination rather than assigning values by their order.

Facing-slide repeat positioning, spindle roundness and finished-workpiece accuracy are different measures. Confirm test conditions and acceptance methods independently.

Weights describe pictured assemblies. Confirm the complete configuration, matching drawings, controls and supply scope before integration. Catalog values are not workpiece-accuracy or delivery commitments.

Send the workpiece features before specifying the servo facing head.

Share the workpiece drawing, radial features, stroke, tool load, speed, CNC interpolation method and machine interface so JNYO can confirm the facing-head configuration.