Product image · configuration may vary

XT45-1 XT45-1 Series

XT45-1 BT40 ATC + CTS Spindle Head

XT45-1-BT40-MB-CTS is an ATC spindle head with through-spindle coolant for applications that combine automatic tool change with deep-hole cooling and chip evacuation. Final selection follows the workpiece, tooling, cutting load, duty cycle and machine interface.

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Spindle interfaceBT40
Published speed4,000 rpm; 6,000 rpm NSK option
Published roundness≤ 0.004 mm
Assembly reference150 kg

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.

XT45-1-BT40-MB-CTS selection guide

XT45-1 BT40 ATC + CTS Spindle Head for machine builders and production-equipment integrators.

BT40Spindle interface

4,000 rpm; 6,000 rpm NSK optionPublished speed

≤ 0.004 mmPublished roundness

150 kgAssembly reference

Application fit

Start with the workpiece and process. The model name is only a starting point.

Special-purpose machines

Dedicated boring, milling or combined stations designed around a defined part and cycle time.

Modular machining units

Integrate the spindle with a slide, column, fixture and CNC or special-purpose control.

Production cells

Concentrate compatible operations after tooling, load, guarding and service access are reviewed.

Retrofit projects

Compare center height, mounting, machine envelope and maintenance access with the existing machine.

Published selection data

Model platform	XT45-1-BT40-MB-CTS
Spindle interface	BT40
Published speed	4,000 rpm; 6,000 rpm NSK option
Bearing arrangement	7213AC × 3 (TBT) and 7212C × 2 (DB)
Lubrication	High-speed bearing grease
Published temperature rise	≤ 20°C
Published roundness	≤ 0.004 mm; confirm measurement and acceptance conditions
Published maximum power	≤ 10 HP
Tool change	Automatic tool change with booster-type unclamping; magazine and control sequence are machine dependent
Motor reference	5.5 kW servo motor shown on the CTS assembly drawing. The CTS page does not print a separate motor range or rated/maximum motor-speed table; confirm these for the selected build
Published assembly weight	150 kg
Coolant path	Through-spindle coolant; confirm tool, seals, pressure, flow and filtration
Engineering file	Request the matching dimensional drawing and compatible 3D file before integration

Published values are selection references taken from the existing JNYO product sheets. Confirm the exact build, dimensions, motor, speed, load, acceptance method and supply scope in the approved drawing and quotation.

Compare configurations

Choose the physical layout, tool interface, ATC and coolant requirements before fixing motor and control specifications.

PlatformCore spindle headCompare the interface, load, machine envelope and process requirements before selection.Front-mountedMotor toward the frontCompare the interface, load, machine envelope and process requirements before selection.Current pageTool change with through-spindle coolantCompare the interface, load, machine envelope and process requirements before selection.

Five inputs for a useful recommendation

Operation

Boring, milling, drilling, facing or a combined process.

Workpiece

Material, feature dimensions and required cycle time.

Tooling

Holder, tool diameter, interface and target speed.

Performance

Cutting load, finish, accuracy and duty cycle.

Integration

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

XT45-1-BT40-MB-CTS selection questions

Confirm these items before the drawing and quotation are approved.

How should I choose the spindle interface?

Start from the holder, tool-change method, cutting load and required accuracy. Send the tool specification and operation for review.

Are all published speed values available on every build?

No. The approved limit depends on bearings, motor, drive ratio, tooling, cutting load and duty cycle.

What changes with the motor arrangement?

MF and MB layouts change the motor envelope, belt path, guarding and maintenance access. Compare the matching drawing with the real machine.

Can JNYO provide a dimensional drawing or 3D model?

Yes, compatible files can be requested after the exact spindle interface, motor layout, ATC and coolant requirements are identified.

What information is needed for a quotation?

Send the workpiece material, operation, tool details, target speed, cutting load, accuracy requirement, machine drawing, quantity and destination country.

Catalog source and configuration limits

JNYO product catalog, PDF page 15; JNYO product catalog, PDF page 16; Chinese edition, approximately 74 MB.

The ordinary NT40 rear-drawbar arrangement and the BT40 automatic tool-change configuration have separate drawings. The 6,000 rpm spindle option carries the catalog NSK-bearing condition. Motor speed and spindle output speed are different quantities; verify the transmission ratio and complete configuration.

The catalog CTS drawing is labeled XT45-1-BT40-MB+CTS. Its pictured 5.5 kW motor does not establish the full range of supplied configurations. Confirm tooling, rotary union, coolant pressure, flow, filtration and controls.

Reference weights describe pictured configurations. Catalog roundness is not a workpiece-accuracy guarantee. Confirm measurement conditions, complete dimensional drawings, actual assembly weight and supply scope before integration.

Engineering files