The J46-400LU gang type CNC lathe machine is designed for manufacturers that need stable turning performance, reliable machine rigidity, and accurate rough and fine machining for metal parts. With a maximum swing diameter of Ø400 mm, maximum turning diameter of Ø200 mm, maximum turning length of 380 mm, and Ø56 mm spindle bore, this machine is suitable for processing stainless steel, titanium alloy, carbon steel, mold steel, and other industrial materials.

For B2B buyers, machine stability is often more important than simple cutting speed. In real production, weak machine structures may cause vibration, unstable machining accuracy, poor surface finish, and shorter tool life. The J46-400LU solves this problem with a one-piece casting base, slant bed structure, aging treatment process, Taiwan SYNTEC controller, and reinforced feeding axis configuration.

As a slant bed CNC lathe, the J46-400LU is suitable for factories that need efficient turning, facing, boring, threading, grooving, and precision metal machining in one machine. It is especially practical for precision parts manufacturers, automotive parts suppliers, hardware processing factories, mold component workshops, and CNC turning service providers.

Key Features of the J46-400LU

One-Piece Casting Base and Slant Bed Structure

The J46-400LU uses a one-piece casting base and slant bed design to maintain stable machine performance during long-term machining. The integral casting structure undergoes annealing, vibration aging, and other aging processes to improve long-term stability and extend machine tool lifespan.

This structure helps reduce vibration during turning and supports better machining accuracy for rough and fine processing.

Taiwan SYNTEC CNC Controller

The machine is equipped with a Taiwan SYNTEC controller, providing stable operation, convenient programming, and reliable control response for CNC turning applications.

The SYNTEC system supports efficient daily production and helps operators manage machining processes more easily in industrial workshops.

Ø56 mm Spindle Bore and Ø45 mm Bar Capacity

The J46-400LU features a Ø56 mm spindle bore and supports a maximum bar material diameter of Ø45 mm. This makes the machine suitable for bar material processing, shaft parts, sleeve parts, and medium-sized turned components.

The spindle uses an A2-5 spindle nose and supports a maximum spindle speed of 4500 r/min.

11 kW Spindle Motor with Optional 15 kW Power

The standard spindle motor power is 11 kW with 72 Nm torque. An optional 15 kW / 95.5 Nm configuration is also available for buyers who need stronger machining capacity.

This provides flexibility for different materials and cutting conditions, including stainless steel, titanium alloy, carbon steel, and mold steel.

Servo Turret and Stable Feeding Axis

The machine supports an 80-12T or 8T servo turret configuration. The feeding axis offers a maximum fast travel speed of 24 m/min, helping improve machining efficiency and tool movement response.

The X/Z axis uses C3-grade ball screws and roller linear guides to support smooth and accurate motion.

Four Locking Functions for Better Accuracy

The machine is equipped with four locking functions to prevent wobbling and tilting during ejection. This helps improve workpiece stability and maintain machining accuracy during production.

Benefits for B2B Manufacturing Buyers

Stable Machining for Difficult Materials

The J46-400LU is suitable for rough and fine machining of stainless steel, titanium alloy, carbon steel, mold steel, and other metal materials. Its rigid structure and stable spindle configuration help support reliable cutting performance.

Better Long-Term Accuracy

The machine body adopts integral casting with aging processes such as annealing and vibration aging. This helps reduce deformation risk and improve long-term machine stability.

For batch production, stable structure helps maintain consistent accuracy and reduce machining variation.

Efficient Turning Capacity for Medium Parts

With a maximum turning diameter of Ø200 mm and maximum turning length of 380 mm, the J46-400LU is suitable for a wide range of medium-sized turned parts.

It can be used for shafts, sleeves, connectors, threaded parts, hardware components, and precision mechanical parts.

Flexible CNC System and Accessory Options

The standard configuration includes a SYNTEC CNC system, while FANUC is available as an optional control system. Buyers can also choose optional accessories such as feeding device, chip conveyor, automated robot, oil mist separator, and different clamping solutions.

Reliable Components for Industrial Operation

The main configuration includes Taiwan SYNTEC system, Japan YASKAWA or Taiwan SYNTEC servo system, Taiwan PMI or HIWIN C3-grade ball screws, PMI or HIWIN P-class linear guides, Schneider electrical components, and a customized hydraulic station.

These components help support stable industrial operation and easier maintenance.

Technical Specifications

Product Model: J46-400LU
Machine Type: Gang Type CNC Lathe Machine
Maximum Swing Diameter Over Lathe: Ø400 mm
Maximum Turning Diameter: Ø200 mm
Maximum Turning Length: 380 mm
Spindle Hydraulic Chuck: 6 inch
Spindle Center Height from Ground: 1080 mm
Spindle Nose: A2-5
Spindle Bore Diameter: Ø56 mm
Maximum Bar Material Diameter: Ø45 mm
Maximum Spindle Speed: 4500 r/min
Spindle Motor Power / Torque: 11 kW / 72 Nm
Optional Spindle Motor Power / Torque: 15 kW / 95.5 Nm
Servo Turret Model: 80-12T or 8T
Maximum Fast Travel Speed: 24 m/min
X/Z/Y-Axis Motor Power / Torque: YASKAWA 1.3 kW / 8.34 N.m or SYNTEC 1.8 kW / 11.5 N.m
X/Z-Axis C3-Grade Ball Screws: 32 / 32
X/Z-Axis Roller Linear Guides: 35 / 35
X-Axis Maximum Travel: 230 mm
Z-Axis Maximum Travel: 400 mm
Tailstock Travel: 400 mm
Thimble Taper: Morse Taper #5
Machine Net Weight: 3500 kg
Total Machine Power: 11 kW
Machine Dimensions: 2300 × 1600 × 1700 mm

Machine Tool Accuracy

X-Axis Repeated Positioning Accuracy: ±0.003
Z-Axis Repeated Positioning Accuracy: ±0.003
Y-Axis Repeated Positioning Accuracy: ±0.004

The accuracy test is performed after a preliminary run of approximately 50 times to reduce cooling and warm-up errors.

Configuration Details

NC System: Taiwan SYNTEC 22TA system with 10.4-inch screen
X/Z-Axis Servo: Japan YASKAWA or Taiwan SYNTEC
X/Z Screws: Taiwan PMI or HIWIN C3-grade ground ball screw with double nut
X/Z Linear Guides: Taiwan PMI or HIWIN P-class ball linear guide with extended carriage
Spindle: Taiwan POSA spindle or customized Jingfusi tail-mounted direct-drive electric spindle
Spindle Motor: Taiwan SYNTEC or Beijing CTB
Servo Turret: Taiwan-made 12-station 80 MYKUN servo turret or customized Jingfusi servo turret
Lubrication System: Japanese HERG lubricating oil pump
Electrical Components: German Schneider electrics
Hydraulic Station: Customized hydraulic station
Cast Iron One-Piece Bed: In-house development
System Feature: SYNTEC System G183 face drilling cycle

Optional Configurations

Electric Spindle: Optional
FANUC CNC System: Optional
SYNTEC Feed Axis: Optional
Push-Up Chuck: Optional
Chuck: Optional
Feeding Device: Optional
Chip Conveyor: Optional
Automated Robot: Optional
Oil Mist Separator: Optional
High-Rigidity Programmable Tailstock: Optional

The optional high-rigidity programmable tailstock includes 450 mm tailstock travel, Morse Taper #5, 45 mm linear guides, and hydraulic actuation with displacement sensor for M-code programming.

Application Scenarios

Stainless Steel Parts Machining

The J46-400LU is suitable for stainless steel turning applications that require stable rigidity, reliable spindle performance, and consistent machining accuracy.

Titanium Alloy Component Processing

For titanium alloy parts, machine stability and vibration control are important. The one-piece casting base and slant bed structure help support smoother machining.

Carbon Steel Turning

The machine can be used for carbon steel shafts, sleeves, connectors, threaded components, and other general mechanical parts.

Mold Steel Machining

The J46-400LU supports rough and fine machining of mold steel materials, making it suitable for mold component suppliers and precision tooling workshops.

Batch Production Workshops

With stable repeated positioning accuracy, servo turret options, and CNC control, this machine is suitable for batch production of precision turned parts.

How to Choose the J46-400LU for Your Factory

Choose It When You Need Stable CNC Turning

If your factory needs stable rough and fine machining for metal parts, the J46-400LU offers a rigid machine structure and reliable CNC control system.

Choose It When You Process Bars Up to Ø45 mm

The Ø56 mm spindle bore and Ø45 mm maximum bar material diameter make this machine suitable for medium bar material machining.

Choose It When Long-Term Stability Matters

The integral casting structure, aging treatment process, and slant bed design help support long-term machining stability.

Choose It When You Need Flexible Configuration Options

If your production requires different control systems, feeding devices, chip conveyors, robots, or oil mist separators, the J46-400LU provides multiple optional configurations.

Choose It When You Need Medium-Sized Turning Capacity

The machine is suitable for workpieces requiring up to Ø200 mm turning diameter and 380 mm turning length.

FAQ

Q1: What is the J46-400LU mainly used for?
The J46-400LU is mainly used for CNC turning, rough machining, fine machining, boring, threading, and metal parts processing.

Q2: What materials can the J46-400LU process?
It is suitable for stainless steel, titanium alloy, carbon steel, mold steel, and other metal materials.

Q3: What is the maximum bar material diameter?
The machine supports a maximum bar material diameter of Ø45 mm.

Q4: What CNC system does the machine use?
The standard configuration uses a Taiwan SYNTEC CNC system. FANUC is available as an optional configuration.

Q5: What is the maximum spindle speed?
The maximum spindle speed is 4500 r/min.

Q6: Does the machine support optional automation equipment?
Yes. Optional equipment includes feeding device, chip conveyor, automated robot, oil mist separator, and other accessories.

Q7: What is the machine accuracy?
The X-axis and Z-axis repeated positioning accuracy is ±0.003, and the Y-axis repeated positioning accuracy is ±0.004.

Q8: Can the machine be equipped with a programmable tailstock?
Yes. An optional high-rigidity programmable tailstock is available with hydraulic actuation and displacement sensor M-code programming.