XT40-1-E Series Enhanced Boring & Milling Spindle Head

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XT40-1-E XT40-1-E Series

XT40-1-E Series Enhanced Boring & Milling Spindle Head

XT40-1-E is an enhanced boring and milling spindle head for machine builders and retrofit teams. Select NT40-E or BT40 only after the process, tooling, load, target speed and installation envelope have been reviewed.

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Spindle interfaceNT40-E / BT40
Published speed2,500 / 4,500 / 7,000 rpm (NSK option)
Assembly reference35 kg
Published accuracy≤ 0.004 mm roundness

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-E enhanced spindle platform

A documented 40-taper spindle platform for boring and milling units that need a clear interface, bearing and motor selection path.

NT40-E / BT40Published spindle interface

2,500 / 4,500 / 7,000 rpm (NSK option)Published speed options

≤ 0.004 mmPublished roundness

35 kgPublished 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.

Special-purpose machines

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

Modular machining units

Spindle modules integrated with mechanical, hydraulic or CNC slide-table assemblies.

40-taper production work

Applications that need a documented 40-taper interface with configurable motor and bearing options.

Retrofit projects

Replacement or upgrade work where mounting, center height and service clearance can be verified.

Published selection data

Model platform	XT40-1 enhanced boring and milling spindle head
Spindle interfaces	NT40-E or BT40, selected around the tool interface and change method
Published speed options	2,500 rpm, 4,500 rpm and 7,000 rpm NSK-bearing option are shown in the published parameter data
Bearing arrangement	2,500 rpm: NN3011/234411BM1 with 7010AC/DB; 4,500 rpm and the 7,000 rpm NSK-bearing option: 7011AC/TBT with 7010AC/DB
Lubrication	High-speed bearing grease
Published temperature rise	≤ 20°C under the conditions represented by the published data
Published roundness	≤ 0.004 mm; confirm measurement point, method and acceptance conditions
Published maximum power	≤ 10 HP
Three-phase motor reference	1.5–4 kW; 2-pole 3,000 rpm, 4-pole 1,500 rpm or 6-pole 1,000 rpm listed
Servo spindle motor reference	1.5–5.5 kW; 2,000 rpm rated and 7,000 rpm maximum listed
Motor arrangement	Separate spindle platform
Integration file	Request the matching dimensional drawing and compatible 3D file before integration

The parameter drawings show several speed and bearing options. Final speed, load, motor, drive ratio, dimensions and acceptance conditions must be stated in the approved drawing and quotation.

Choose the configuration around the machine

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

Current pageXT40-1-EReview the shared spindle, bearing, motor and interface options before fixing the layout.
Front-mountedXT40-1-E-MFMove the motor toward the front when the machine envelope and service access support this layout.
Rear-mountedXT40-1-E-MBMove the motor toward the rear when rear clearance and belt access are available.
BT40 + ATCXT40-1-E-BT40-MBAdd a BT40 motor and automatic tool-change path for concentrated machining cycles.

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-E selection questions

Confirm these items before the drawing and quotation are approved.

Which spindle interface should I specify for XT40-1-E?

Start from the tool interface, cutting load, tool-change method and required accuracy. Send the tool specification and operation so the complete spindle configuration can be checked.

Are all published speed values available on every configuration?

No. The drawings show configuration-dependent speed options. The approved limit depends on the spindle, bearings, motor, drive ratio, cutting load and duty cycle, so the final value must be confirmed in the quotation and drawing.

What does the separate platform arrangement change?

The separate platform arrangement changes the motor envelope, belt path, guarding and service access. Compare the matching drawing with the machine envelope before fixing the mounting position.

Can JNYO provide a dimensional drawing or 3D model?

Dimensional and compatible 3D files can be requested for integration review. Include the spindle interface, motor arrangement and tool-change requirements so the matching file is selected.

What information is needed for a quotation?

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

Catalog source and configuration limits

JNYO product catalog, printed pages 13–14 (PDF page 10); Chinese edition, approximately 74 MB.

Spindle speed and motor speed are separate values; output speed depends on the selected drive ratio and complete configuration. Catalog roundness and temperature rise require defined measurement and operating conditions and are not guarantees of workpiece accuracy. HP and kW retain the source units.

NT40 rear-drawbar and BT40 automatic tool-change arrangements are shown separately. ATC does not by itself include through-spindle coolant; CTS also requires compatible tooling, a coolant passage, rotary union, supply, filtration and control interfaces.

Engineering files