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Call:1-888-551-3082 International: 1-919-443-0207 sales@servosupplier.com
Call:1-888-551-3082 International: 1-919-443-0207 sales@servosupplier.com
S image of VAC D8-B

VAC D8-B

by Okuma
$0.00 - $0.00
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$0.00 - $0.00
Request a Quote

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The Okuma VAC D8-B spindle drive, part of the VAC Spindle Drives series by Okuma, offers a versatile solution for CNC spindle motor control. Designed for a wide input range of AC170V-AC250V at 50/60Hz, the drive accommodates diverse industrial power environments. It employs six power transistors for efficient switching and power regulation, and features a PT768 main diode module rated at 75A 800V to manage rectification with minimal loss. Complementing this, the drive supports interchangeable transistor modules—EVM31-050A or QM150DX-H—each rated at 150A 600V or 150A 450V for application flexibility. The primary protection is handled via a Base Circuit Fuse Type KM10 1A, supplemented by Warning Fuse Type 1 SMP32 3.2A and Warning Fuse Type 2 MP50 5A to guard against overcurrent events.

Performance and technical integration are streamlined through the onboard VAC-BOARD-II control PCB, which orchestrates drive functions with precision. Control signals are routed through a CN1 (50-pin) connector while motor feedback and power are interfaced via a Commercial MATE-N-LOCK 1-480438-0 (16-pin) motor signal connector. The board architecture integrates a regeneration circuit that captures braking energy, a transformer for localized voltage conversion, and visual diagnostics delivered by LED indicators. Configurable settings are facilitated by DIP switches, allowing field customization of operational parameters, while the drive’s potentiometer adjustments (Speed Meter and Load Meter) give technicians real-time tuning capability. This combination of high-current transistor modules, robust diode rectification, and advanced PCB topology ensures stable and responsive spindle control under dynamic loads.

Reliability is enhanced by carefully selected signal connectors and robust PCB components that meet stringent Industrial Automation standards. The VAC D8-B seamlessly integrates into existing CNC architectures, leveraging standardized Signal connectors and modular drive design to minimize installation complexity. Its resilience under continuous operation is assured by protective fusing and regenerative energy handling, extending component life and reducing maintenance intervals. Tailored for precision machining, the drive excels in demanding applications such as milling, drilling, and turning within high-volume production and Wake industrial environments. By balancing advanced technical features with practical ease of use, the VAC D8-B ensures consistent spindle performance and maximizes equipment uptime.

Contact Us

Email: sales@servosupplier.com
Phone Number: 1-888-551-3082
International: 1-919-443-0207
Fax: 1-919-867-6204

Servo Supplier is not an authorized distributor. We sell new surplus and refurbished products. All warranties are with Servo Supplier and not the manufacturer.

Military Grade
Packaging

30 Day Warranty

Shipping Options

Payment Options

Technical Specifications

Base Circuit Fuse Type

KM10 1A

Control Pcb Designation

VAC-BOARD-II

Control Signal Connector

CN1 (50-pin)

Main Diode Module Rating

75A 800V

Main Diode Module Type

PT768

Major Pcb Components

Regeneration circuit, transformer, LED, DIP switch

Motor Signal Connector

Commercial MATE-N-LOCK 1-480438-0 (16 pin)

Number Of Power Transistors

6

Potentiometer Adjustments

SM (speed meter), LM (load meter)

Power Supply Voltage

AC170V-AC250V (50/60Hz)

Transistor Module Rating

150A 600V or 150A 450V

Transistor Module Type

EVM31-050A or QM150DX-H

Warning Fuse Type 1

SMP32 3.2A

Warning Fuse Type 2

MP50 5A

Testimonials

We used Servo Supplier to refurbish old drives and buy reconditioned parts. We received great and timely service at a fair price. I recommend them to anyone who has aging equipment and can't find support from their OEMs. Highly recommend.

Bostik Inc.

WE absolutely LOVE Servo Supplier. They are quick, efficient and friendly. Honest too, which is huge in our industry. We deal with many different companies, and these guys are tops in our humble opinion. There has never been an issue with delivery, no warranties, no hidden fees, no surprises. Just what you want in the manufacturing business. Smooth, and we love smooth.

Technomech Inc

First-time customer. The ordering process was completely seamless. The part that we ordered was at our business within 2 days. Which was excellent! We had a piece of equipment down for a little more than 48 hours. Could have been a lot longer had we purchased from one of our normal suppliers.

Steve T. from NF&M International

I found these guys online and needed a somewhat obscure part quickly, and they delivered! Very quick process from the time I requested a quote to the shipping of my items. Great work Servo Supplier team!

FlexPac

Servo Supplier is my go to place for obsolete parts. They always seem to find them and the price is usually good. Any time I have questions they respond very quickly and professionally. I highly recommend them!

Middlesex General Industries

They were very quick to get the drive we needed shipped out to us. They were also very quick to respond and help with some pictures of information on the unit we ordered to ensure we received the right part.

Justin Ball from Miba

Understood our situation, and worked to help us get it solved. Very responsive, and stepped out to keep me informed until the product arrived. Exactly as described, and promised.

Brian Tomlin

This company was fantastic to work with! Very patient with us to make sure we were getting what we needed and extremely quick shipping. Would definitely purchase from them again and again!

Carla Morgan

We asked for a fast turn around and Wake was up to the task!

Darrell Chapman