Standard 90° Right Angle Heads (DK90-ER Series)

Standard 90° Right Angle Heads (DK90-ER Series)

Welcome to the BOD Standard 90° Right Angle Head Series, featuring our foundational workhorse tooling attachments designed for vertical machining centers (VMC), horizontal machining centers (HMC), and gantry milling machines. Developed by Beijing BOD Technology Co., Ltd., this category includes the rigid DK90-BT40 ER Series and the heavy-duty DK90-BT50 ER Series. These standard fixed 90-degree heads enable workshops to perform stable side milling, drilling, and tapping without flipping or repositioning the workpiece. This series serves as an optimal solution for enhancing existing 3-axis and 4-axis machine capabilities across the automotive, aerospace, mold-making, and general engineering industries.

Symmetrical QT500-7 Ductile Iron Casing and Structural Rigidity

Sustaining continuous side milling and drilling loads requires a structurally stable casing that resists flex and dampens vibration. Our standard 90° angle heads feature dense, heavy-walled bodies cast from high-grade QT500-7 Ductile Iron. Following the casting process, each monoblock housing is subjected to artificial aging and rigorous stress-relief heat treatment. This metallurgical refinement prevents housing deformation over prolonged duty cycles, ensuring that the tool holder maintains high spindle rigidity during medium-to-heavy lateral machining.

Premium Gleason Bevel Gearing and Tight Runout Tolerances

The internal drive train of the DK90-ER Series is engineered to transfer spindle torque smoothly and accurately:

  • Gleason Spiral Bevel Gears: Manufactured from 20CrMnTi Alloy Steel, these gears are carburized and quenched to a surface hardness of HRC 58-62, then ground to ISO Grade 4 precision standards.

  • Operating Specifications: This gearing keeps transmission backlash to ≤ 15 arcmin and limits operational noise to ≤ 70 dB under full load.

  • Spindle Rigidity: Coupled with preloaded P4 class high-precision angular contact bearings, these heads achieve a standard end-face runout of ≤ 0.01 mm (with high-precision models capable of achieving ≤ 0.005 mm) and a repeat positioning accuracy of ≤ 0.02 mm.

Standard Interface Support and Compliant Export Shipping

We design our standard right-angle heads to integrate with minimal setup time:

  • Taper Compatibility: Standard models accommodate BT40 and BT50 taper interfaces, with technical designs available for CAT, SK, and ISO spindles.

  • Engineering Validation: To assist with clearance planning, 3D CAD step files are available for download, and our engineering team can provide matching positioning blocks (stop blocks) configured to your machine’s exact spindle specifications.

  • Global Shipping Compliance: Standard stocked items are typical for dispatch within 7 to 15 working days. Each unit is prepared with rust-preventative treatment and packed inside an ISPM 15-compliant, Fumigation-Free Plywood Case for secure international transit.

FAQ

Frequently Asked Questions

Common questions about our products and services.

A: The primary difference lies in their size, taper size, and cutting duty capacity. The DK90-BT40 ER Series features a lighter, more compact body designed for standard BT40 taper spindles, making it ideal for medium-duty side milling, drilling, and tapping on standard vertical machining centers. The DK90-BT50 ER Series is a larger, heavy-duty unit designed for BT50 spindles, engineered with larger gear sets and higher torque transmission capacities (up to 65.0 Nm) to support high-allowance side milling on heavy gantry milling machines.
A: Standard BOD 90° right angle heads maintain an end-face runout of ≤ 0.01 mm and a repeat positioning accuracy of ≤ 0.02 mm. For manufacturing tasks requiring tighter geometric tolerances, we offer precision-grade configurations that can achieve an end-face runout of ≤ 0.005 mm, providing stable spindle performance over long production runs.
A: Standard DK90-ER series angle heads are weight-optimized and physically balanced to remain compatible with standard tool changers. To facilitate automatic tool changes, each head requires a dedicated positioning block (stop block) mounted on the machine spindle face. This block aligns the stop pin on the angle head housing, keeping the head properly oriented during tool retrieval, machining, and return cycles.