Dual Output 90° Right Angle Head (DK90-BT40-2X Series)

Key Technical Features and Material Standards

• Opposed Dual Spindle Output (180° Configuration): Built with two collinear spindle outputs on opposite sides of the housing. This double-ended drive mechanism supports ER collet clamping (ER16/ER25) or F25 face milling arbor adapters for disc cutters.
• Dual Rotational Direction Options: Available in standard CW-CW dual rotation or specialized Left: CW-CW / Right: CCW-CW gear train configurations (DK90-BT40-ER25-2X-125), giving programmers full flexibility when running right-hand vs. left-hand cutting tools.
• Heavy-Duty Monoblock Casing: Cast from high-strength structural iron/alloy and subjected to stress-relief heat treatment. The symmetrical monoblock body balances radial cutting forces during double-sided milling.
• Gleason Precision Ground Bevel Gears: Internal gearing utilizes Gleason ground spiral bevel gears in 20CrMnTi Alloy Steel. Carburized and quenched to HRC 58-62 and ground to ISO Grade 4 precision, ensuring gear transmission backlash ≤ 15 arcmin and noise ≤ 70 dB under full load.
• Preloaded Dual Spindle Bearings: Both output spindles are supported by preloaded, high-precision P4 class angular contact ball bearings (NSK/FAG), maintaining spindle nose runout ≤ 0.005 mm on both output ends.

2D/3D Technical Drawings and CAD Download Center

Technical Specifications

Quality Assurance and Testing Standards

Before dispatch, every DK90-BT40-2X series angle head undergoes a 100% Quality Inspection Protocol:

• Dual Spindle Runout Inspection: Runout is measured independently on both output spindle tapers with a high-precision dial indicator, held to ≤ 0.005 mm at the spindle nose and ≤ 0.015 mm at 4D distance on both sides.
• 60-Minute Continuous Run-In: Tested continuously at full rated speed for 60 minutes. Housing temperature rise must remain ≤ 25°C above ambient temperature across both gear outputs.
• Anti-Backlash Alignment: Verified with angular encoders to confirm gear transmission backlash remains ≤ 15 arcminutes on both drive ends.

Target Industries and Industrial Applications

• Automotive Transmission and Engine Housings: Sequential drilling, tapping, and spot-facing on opposite internal faces of gearbox housings and cylinder blocks.
• Hydraulic Valve Blocks and Manifolds: Machining parallel internal ports and valve seats located on opposing inner walls of complex hydraulic manifolds.
• Parallel Slotting and Dual-Side Mold Features: Performing simultaneous or indexing side milling operations on opposite sides of mold plates and slider guides.

CNC Machine Compatibility

Optimized for medium-to-large Vertical Machining Centers (VMC) and Horizontal Machining Centers (HMC). Compatible spindle interfaces include:

• Spindle Standards: BT40 / BBT40 (Face & Taper double contact) / SK40 / HSK63A.
• Typical Machine Brands: Compatible with Haas, Mazak, Okuma, Doosan / DN Solutions, Makino, and Hurco machine tools.

B2B Industrial Packing and Shipping Standards

• Anti-Rust Protection: Coated with heavy-duty anti-rust oil and vacuum-sealed in a high-barrier VCI (Vapor Corrosion Inhibitor) bag accompanied by industrial desiccant packs.
• Shock Absorption: Cradled inside custom-contoured, high-density polyurethane protective foam inserts to isolate both output spindles and the BT40 taper from transport shock.
• Export Outer Casing: Each unit is crated in an ISPM 15-compliant, Fumigation-Free Plywood Wooden Case equipped with quick-locking metal clasps.
• HS Code: 8466.10.10.00 or 8466.30.00.90.
• Lead Time: Standard models are shipped within 5-7 working days. Custom positioning blocks (G-distance) are completed and shipped within 15-20 working days.
• Shipment Ports: Shanghai / Ningbo / Tianjin Port, China.
• Incoterms Supported: FOB, CIF, EXW, FCA, DDU, DDP.
• Express Delivery: Shipped via international air couriers (DHL, FedEx, UPS) with delivery to Europe and North America within 3-5 business days.

Technical Setup and Stop Block Alignment Guide

codeText

       ┌──────────────────────────────────────┐
       │     MACHINE TOOL SPINDLE FACE        │
       └──────────────────┬───────────────────┘
                          │ (Spindle Centerline)
                          │ 
                          ▼◄──────  G  ──────►[STOP BLOCK]
                       ┌─────┐                    │
                       │Taper│                    │ (Locking Bore)
                       └─────┘                    ▼
                          │               ┌───────────────┐
                     ┌────┴────┐          │ Positioning   │
                     │  Body   ├──────────┤ Pin (D18/D20) │
                     │  Casing │          └───────────────┘
                     └─────────┘

1. Stop Block Mounting: Securely bolt the heavy-duty stop block (retaining block) to the front face of the VMC machine spindle.
2. Verify Center Distance (G-Dimension): Confirm that the center-to-center distance between the machine spindle and positioning pin socket matches your ordered G-Distance (commonly 65mm, 80mm, or 110mm).
3. Indicate Side Runout: Chuck a ground test arbor into one ER output collet, then repeat on the opposite output collet. Sweeping a dial indicator horizontally along both arbors, adjust the stop block’s locking bolts until parallelism is aligned within 0.015 mm per 100mm on both ends.
4. Confirm ATC Clearances: Run a manual tool changer (ATC) test cycle at low speed to verify the automatic arm smoothly grabs, seats, and releases the BT40 taper without physical interference from either output nose.

Technical FAQ