website logo
Contact Now
Products
Turning Spindles Grinding Spindles Milling Spindles Engraving and Milling Spindles Dental Milling Spindles Mechanical Spindles PCB Spindles Semiconductor Machining Spindles Ultra-Precision Finishing Spindles Ultrasonic Machining Spindles Woodworking Spindles Air Cooled Spindles ATC Spindles High-Speed Spindles VFD Spindles Machining Spindles 5-Axis DD Rotary Table 4-Axis DD Rotary Table Direct Drive Tool Grinding 4-Axis Rotary Table Milling Head LM Guide and Ball Screw Tool Holder Precision Collets Air Compressor Automation Fixtures Compact Shaft Cooling Spindles Linear Slides
HomeHome Products Direct Drive Spindles

BBT30 and BBT40 Spindle Models

Spindle Finder

Direct-Drive vs Belt-Drive

Drive path: no belt or pulley, so no belt to tension or replace.

Trade-off: the drive sits in line with the spindle. If your layout needs an offset motor, choose a belt-driven spindle.

Power, torque and drawbar force are supplied per model with the quote. Request the drawing and data.

Clamping, Runout and Sealing

Clamping

The clamp/unclamp mechanism is designed for more than 10 million cycles.

Runout

Cone-hole runout ≤0.002 mm, ≤0.008 mm on a 300 mm test bar, dynamic balance G1.

Sealing

Air-sealed structure for coolant- and chip-heavy work.

Holders

BBT is a dual-contact interface (taper plus flange face), so it needs BBT holders. A plain BT holder gives taper contact only. See BBT-ER and BBT-SK tool holders.

BT30 Spindle Replacement and OEM Supply

Send your machine model, mounting diameter and flange pattern, holder standard and pull-stud type, and speed and power target. Speed, torque, power, cooling, interface and tool holder can be customized. Lead time depends on the configuration and is confirmed with your quote. Pricing is quote-based.

Haozhi holds ISO 9001 and ISO 14001 certification, has an annual capacity of 400,000+ spindles and makes its clamping systems in-house.

Axis hardware for the same build: milling head, DZGD-150A, DZDA-160, DZDC-160-A3 and tool grinding rotary tables.

Request a quote

BT30 Spindle FAQ

Is ISO30 the same as BT30?

No. Both use a size-30, 7:24 taper, but the flange, drive-slot and pull-stud details differ, so holders do not interchange. Confirm your holder standard before ordering.

What are the BT30 taper dimensions?

A 7:24 taper, size 30. Model-specific mounting dimensions are on each spindle's drawing.

Discuss Your CNC Spindle or Motion Component Project

Share your machine type, machining process, performance targets or existing component specifications with Haozhi. Our technical team can support spindle selection, application matching, custom development and motion-component integration for new equipment and upgrade projects.
Name *
Country *
Company *
Email Address *
  • Mobile/Whatsapp

    +86 186 6567 2648

  • Tel

    +86 (20) 6225 7588 ext. 8558

  • Email

    global@haozhihs.com

  • Address

    No. 68 Hefeng Road, Huangpu District, Guangzhou, Guangdong Province, China, 511356

CONTACT US
Driving Precision Manufacturing with Advanced Motion Solutions
Name *
Country *
Company *
Email Address *