3.5kw BT30 ATC spindle motor

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Water-Cooled ATC Spindle Motor: 3.5kW BT30 Precision for High-Speed Machining

Overview

Designed for precision and durability, the 3.5kW BT30 Water-Cooled ATC Spindle Motor combines advanced engineering with user-centric features. Ideal for CNC milling, engraving, and high-speed cutting, this spindle delivers reliable performance across industries like aerospace, automotive, and electronics. Below are its key specifications and capabilities.

Technical Specifications

• Power: 3.5 kW
• Model: Water Cool Spindle ATC
• Voltage: Dual-voltage compatibility (220V / 380V, 3-phase)
• Current: 7–11A
• Clamp System: BT30 taper with ER11 to ER32 collet support
• Frequency Range: 100–1200 Hz
• Speed: Adjustable from 3,000 to 18,000 RPM (standard) or up to 24,000 RPM (high-speed mode)
• Bearings: High-performance ceramic ball bearings for reduced friction and extended lifespan
• Spindle Diameter: Compact 100mm design for integration into space-sensitive setups
• Lubrication: Grease-based system for low maintenance and consistent operation
• Inverter Compatibility: Optimized for V/F (Voltage/Frequency) control inverters
• Pole Configuration:
• 4-Pole Mode: Operates at 100–800 Hz for balanced torque and mid-range speeds.
• 8-Pole Mode: Supports 100–1200 Hz for ultra-high-speed applications.

Key Advantages

Flexible Speed and Frequency Control

The spindle’s wide frequency range (100–1200 Hz) and dual-pole configuration allow operators to tailor performance to specific tasks. For example:

• Use 4-pole mode (100–800 Hz) for heavy milling in metals like steel.
• Switch to 8-pole mode (100–1200 Hz) for precision engraving or high-speed aluminum machining at up to 24,000 RPM.

Enhanced Tool Compatibility

The BT30 tool interface ensures compatibility with ER11 to ER32 collets, accommodating tools from micro-drills (1mm) to larger end mills (20mm). The Automatic Tool Changer (ATC) integration minimizes downtime during multi-tool operations.

Thermal Stability and Durability

• Water Cooling System: Maintains consistent temperatures during prolonged use, critical for maintaining tight tolerances (±0.01mm).
• Ceramic Bearings: Resistant to wear at high RPMs, these bearings last 3–5x longer than traditional steel bearings.

Compact and Lightweight Design

With a 100mm diameter and optimized weight distribution, this spindle is ideal for CNC routers, gantry mills, and other setups where space efficiency is paramount.

Applications

• Metalworking: High-speed milling of aluminum, brass, and stainless steel.
• Woodworking: Precision carving and cutting in hardwoods or composites.
• Plastics and PCB Fabrication: Clean, vibration-free machining of delicate materials.
• Prototyping: Rapid production of complex geometries with minimal tool deflection.

Why This Spindle Stands Out

• Energy Efficiency: The 3.5kW motor balances power consumption and output, achieving up to 90% efficiency under load.
• Low Maintenance: Grease lubrication and sealed bearings reduce servicing intervals.
• V/F Control Compatibility: Works seamlessly with standard inverters, avoiding the need for costly specialized drives.

FAQ

What is the maximum tool size supported?

The ER32 collet accommodates shank sizes up to 20mm.

Can it run continuously for 8+ hours?

Yes, the water-cooling system and ceramic bearings ensure stable operation during extended shifts.

Is an ATC system included?

The spindle is ATC-ready but requires a compatible tool-changer unit for automated operation.

Conclusion

The 3.5kW BT30 Water-Cooled ATC Spindle Motor offers versatility, precision, and durability for demanding machining environments. Its blend of high-speed capabilities, thermal management, and tool flexibility makes it a cost-effective upgrade for workshops aiming to boost productivity and precision.

Contact Supplier: For pricing and customization options, reach out to authorized distributors or visit the manufacturer’s website.

This structured yet non-tabular format ensures clarity while highlighting critical technical details and benefits for potential users.

This Spindle clamp chuck can use BT30 ,but also can use NBT30.

If you need an 8 pole spindle ,1200 HZ frequency spindle, the same price.

High-Power 3.5KW Spindle for CNC Machines: Precision Cutting Excellence

Meta Description: Discover how a 3.5KW spindle revolutionizes CNC machining with unmatched power, precision, and versatility. Learn about its features, applications, and maintenance tips for optimal performance.

Why Choose a 3.5KW Spindle for CNC Machines?

In precision-driven industries like aerospace, automotive, and woodworking, the 3.5KW spindle stands as a cornerstone of efficiency and accuracy. Designed to handle demanding materials and intricate operations, this high-power tool combines robust performance with advanced engineering. Whether you're milling aerospace-grade alloys or carving intricate wood designs, a 3.5KW spindle ensures reliable results.

Key Features of the 3.5KW Spindle

1. High Power Density

With a 3.5KW (4.5HP) motor, this spindle delivers exceptional torque while maintaining a compact design. Its ability to sustain speeds up to 24,000 RPM (depending on cooling type) makes it ideal for both heavy-duty milling and high-speed engraving.

2. Precision Engineering

• Advanced Bearings: Equipped with ceramic ball bearings (e.g., C7006C/P4 and C7002C/P4), it minimizes friction and ensures long-term stability.
• Low Runout: Radial runout of <0.02mm guarantees consistent accuracy, critical for fine engraving and surface finishing.

3. Dual Cooling Options

• Air-Cooled Models: Efficiently dissipate heat during prolonged operations, ideal for woodworking and light metal tasks.
• Water-Cooled Models: Maintain stable temperatures for high-intensity applications like metal milling.

4. Versatile Compatibility

• Supports ER25 collets for tool flexibility (compatible with 3.175–6mm shanks).
• Dual-voltage operation (220V/380V) ensures global compatibility.

Applications of the 3.5KW Spindle

1. CNC Machining

From aerospace components to automotive parts, the spindle handles aluminum, steel, and titanium with precision. Its high torque (up to 15A current) ensures smooth milling, drilling, and turning.

2. Woodworking

Perfect for intricate carvings and furniture design, the spindle’s 18,000–24,000 RPM range delivers clean cuts in hardwoods and composites.

3. Metal Engraving & Surface Finishing

Achieve mirror-like finishes on metals using high-speed engraving tools. The spindle’s low vibration design prevents workpiece distortion.

4. Industrial Prototyping

Ideal for rapid prototyping, it supports 300Hz frequency operations, reducing cycle times while maintaining accuracy.

How to Choose the Right 3.5KW Spindle

1. Cooling System
• Air-cooled: Best for intermittent use and environments with limited water access.
• Water-cooled: Essential for continuous high-power tasks like metal machining.
2. Bearing Technology

Opt for ceramic bearings (C7006C/P4) for extended lifespan and reduced maintenance.

3. Compatibility

Ensure the spindle’s dimensions (e.g., 93x82mm) fit your CNC machine’s mounting setup.

4. Speed Range

For multi-material workflows, select models with variable RPM control (0–24,000 RPM).

Maintenance Tips for Longevity

1. Regular Lubrication

Use grease-lubricated bearings to minimize wear. Follow manufacturer guidelines for intervals.

2. Cooling System Care
• For water-cooled models: Use filtered water to prevent clogs.
• For air-cooled models: Clean dust filters monthly.
3. Pre-Operation Warm-Up

Gradually ramp up speed (e.g., 25% → 50% → 100%) to avoid thermal shock.

4. Alignment Checks

Verify spindle balance using a dial indicator. Misalignment can cause vibrations and premature bearing failure.

Industry Success Stories

• Aerospace Manufacturer: A 30% boost in production output after switching to a 3.5KW water-cooled spindle for titanium milling.
• Custom Furniture Studio: Achieved 0.01mm precision in wood carvings, enhancing client satisfaction and repeat orders.

Conclusion

The 3.5KW spindle is a game-changer for CNC professionals seeking power, precision, and durability. With dual cooling options, ceramic bearings, and ER25 collet compatibility, it adapts to diverse workflows—from aerospace machining to artistic woodworking. By prioritizing proper maintenance and selecting the right model for your needs, this spindle becomes a long-term asset for unparalleled productivity.

Comprehensive Guide to 3.5KW BT30 ATC Spindle Motors for CNC Machining

Introduction

In CNC (Computer Numerical Control) machining, spindle motors are pivotal components that directly determine a machine’s precision, speed, and efficiency. Among these, the 3.5KW BT30 ATC spindle motor stands out for its exceptional power, flexibility, and advanced features. This guide explores its specifications, features, applications, and advantages, offering insights into its value for small workshops and industrial manufacturers alike.

Product Specifications

The 3.5KW BT30 ATC spindle motor is engineered for high-performance CNC applications, with key specifications including:

These specifications make it ideal for precision engraving, heavy-duty milling, and versatile CNC routing.

Key Features

1. High Precision and Stability: Maintains consistent accuracy even at maximum speeds, ideal for intricate workpieces.
2. Efficient Water-Cooled System: Prevents overheating and extends motor lifespan.
3. Durable Construction: Built with high-quality materials to withstand industrial demands.
4. Dual-Voltage Flexibility: Compatible with global power systems (220V/380V).
5. ATC Functionality: Reduces manual intervention and boosts productivity.

Applications

This spindle motor excels in:

• Engraving: Creates fine patterns on metals, wood, and composites for decorative or industrial components.
• Milling: Processes complex geometries for molds and precision parts.
• CNC Routing: Cuts and shapes materials like plastics, aluminum, and composites.
• Aerospace and Automotive: Machines lightweight alloys and critical components requiring tight tolerances.

Technical Details and Installation

Technical Highlights:

• Bearings: High-precision ceramic bearings (e.g., models 7008/7006) for low friction and stability.
• Lubrication: Grease-lubricated bearings reduce maintenance frequency.
• Air Pressure Requirements: 0.2–0.7 MPa for tool changes and dust sealing.
• Temperature Control: Integrated PTC 140 sensors prevent overheating.

Installation Guidelines:

1. Wiring: Connect U/V/W phases and ground terminals (yellow/green wires).
2. Cooling System: Ensure water pump head ≥12 meters to avoid errors.
3. Initial Run-In: Gradually increase speed: 25% max RPM for 30 mins → 50% for 15 mins → full speed.

Comparison with Other Spindle Motors

Industry Use Cases

• Automotive: Machining aluminum engine components and body panels.
• Aerospace: Precision cutting of lightweight alloys and composites.
• Mold Making: High-speed engraving and milling for intricate molds.
• Woodworking: CNC routing for furniture and decorative designs.

Conclusion

The 3.5KW BT30 ATC spindle motor embodies advancements in CNC technology, combining power, precision, and adaptability. Its ATC system, water-cooled design, and dual-voltage compatibility make it a cornerstone for modern manufacturing. By integrating this motor, workshops and industrial facilities enhance productivity, reduce downtime, and future-proof their machining processes.

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