SFU 3210 Precision Ball Screw | 32mm Diameter | 3000mm Length

The SFU 3210 Precision Ball Screw is a high-performance linear drive component engineered for demanding industrial environments. With a robust 32mm shaft diameter and a high-lead 10mm pitch, this ball screw delivers an exceptional balance of high-load carrying capacity and rapid linear speed. The 3000mm length is precision-rolled from high-grade hardened steel, ensuring minimal deflection and surgical positioning accuracy over long travel distances. This unit features professional end-processing specifically machined to accommodate standard BK25/BF25 or BK20/BF20 support blocks, allowing for seamless integration into heavy-duty CNC router axes, industrial milling centers, and automated gantry systems. The SFU internal circulation design ensures low-friction movement, reduced thermal expansion, and long-term durability under high-duty cycles.

Large 32mm diameter for superior rigidity and high load capacity
High-lead 10mm pitch for increased linear travel speed
Precision-ground end processing for BK25/BF25 and BK20/BF20 supports
3000mm continuous length for large-format machine axes
Hardened bearing steel construction for maximum wear resistance
Low-friction motion with zero-backlash potential

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Specifications

Technical Parameter	Engineering Specification Value
MODEL NUMBER	SFU 3210
DIAMETER	32 mm
PITCH_LEAD	10 mm
TOTAL LENGTH	3000 mm
MATERIAL	Hardened High-Grade Steel Alloy
MECHANICAL	precisionGrade: Industrial Precision Certified \| supportCompatibility: BK25/BF25 or BK20/BF20 \| threadDirection: Right Hand

Industrial Applications

Usage Scenario	Target Industry
Heavy-Duty Industrial CNC Routers	Machine Tool Manufacturing and CNC Fabrication
Large-Format Gantry Milling Machines	Industrial Automation and Robotics
Automated Bridge Saws and Stone Processing	Stone and Architectural Masonry Fabrication
High-Load Vertical Machine Tool Axes	Aerospace and Automotive Engineering
Industrial Robotics and Linear Actuators	Large-Scale Furniture Production
Precision Material Handling Systems	General Engineering

Technical FAQ & Operational Guide

Is the SFU 3210 nut included with the screw?

Yes, our SFU 3210 3000mm assembly typically includes the high-precision ball nut. The nut features internal circulation and integrated dust seals to protect the ball tracks.

What is the benefit of the 32mm diameter over a 25mm screw?

The larger 32mm diameter significantly increases axial rigidity and prevents 'whipping' or vibration over the 3000mm span. This is essential for maintaining precision in heavy-duty machines where high cutting forces are present.

Does this come with the BK25/BF25 support blocks?

While the screw is pre-machined for these supports, the blocks themselves are usually sold separately to allow you to choose the bearing grade that best fits your application. We stock both standard and high-precision support block sets.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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SFU 3210 Precision Ball Screw | 32mm Diameter | 3000mm Length

Large 32mm diameter for superior rigidity and high load capacity

High-lead 10mm pitch for increased linear travel speed

Precision-ground end processing for BK25/BF25 and BK20/BF20 supports

3000mm continuous length for large-format machine axes

Hardened bearing steel construction for maximum wear resistance

Low-friction motion with zero-backlash potential

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Parameter

Engineering Specification Value

MODEL NUMBER

SFU 3210

DIAMETER

32 mm

PITCH_LEAD

10 mm

TOTAL LENGTH

3000 mm

MATERIAL

Hardened High-Grade Steel Alloy

MECHANICAL

precisionGrade: Industrial Precision Certified | supportCompatibility: BK25/BF25 or BK20/BF20 | threadDirection: Right Hand

Usage Scenario

Target Industry

Heavy-Duty Industrial CNC Routers

Machine Tool Manufacturing and CNC Fabrication

Large-Format Gantry Milling Machines

Industrial Automation and Robotics

Automated Bridge Saws and Stone Processing

Stone and Architectural Masonry Fabrication

High-Load Vertical Machine Tool Axes

Aerospace and Automotive Engineering

Industrial Robotics and Linear Actuators

Large-Scale Furniture Production

Precision Material Handling Systems

General Engineering