Precise Positioning Brushed DC Linear Motors from H2W Technologies!

H2W Motion Control Brushed DC Linear Motors

H2W Logo

Santa Clarita, CA — Linear Motors — The DC brush linear motor is ideal for long stroke, open or closed loop servo, linear motion applications. They can be used at speeds up to 100 in / sec [2.5 m / sec] and as low as 1 in/sec [25 mm / sec]. They are capable of very precise position, velocity and acceleration control when coupled with a linear encoder. The motor is commutated using brushes on the moving permanent magnet secondary in conjunction with a stationary commutator bar on the coil assembly. This results in only the coils directly beneath the secondary with current flowing in them.

The short moving linear motor brush assembly is magnetically attracted to the long stationary laminated coil assembly. A customer supplied bearing system is required to guide the moving secondary and to maintain a .025” [0.63 mm] gap between the secondary and the coil assembly.

The power to the motor (from a customer supplied PWM DC servo amplifier) is supplied to the moving secondary via a power cable. The resultant force is proportional to the input current.

The low overall height (1.65” [41.9 mm]) of the DC Brushed DC Linear Motors allows them to fit into a very compact space The low moving mass of the secondary allows for higher accelerations of light payloads.

The Brushed DC Linear Motors come in different widths and secondary lengths to meet different force and packaging requirements.

Product Info:

Travel – 1 to 120 inches [0.025 to 3 m]

Velocity – 1 to 100 inches/sec [0.025 to 2.5 m/s]

Acceleration – 0.1 to 12 G’s 0.1 to 12 G’s

Peak Force – 12 to 207 lbs [53 to 920 N]

Continuous Force – 4 to 69 lbs [19 to 267 N]

Advantages:

Low profile and small cross section

Available in many different widths and lengths

High Acceleration of light loads

High Speed

Uses low cost PWM amplifier

Applications:

Pick and Place Machines

Coordinate measuring machines

Parts transfer

Inspection Machines

The Linear Brush Motor consists of 2 main parts:

Long Stationary Coil Assembly: The laminated motor stacks are insulated and bonded together. The copper coils are inserted into insulated slots in the stack. The ends of the coils are brought out and soldered to the commutator bar. An aluminum mounting angle and a mounting bar are bolted to each side of the lamination stack. Threaded mounting holes in the angle or “T” nuts are available to mount the coil assembly to the customer supplied base plate. The coil assembly is available in widths from 2.0″ to 5.0 ” [50 mm to 125 mm]. The length of the coil assembly is a function of the stroke. Single piece motors are available as long as 144 inches [3.6 m]. Longer motors will be made in sections.

Short Moving Secondary Assembly: The secondary is made of nickel plated steel with permanent magnets bonded to bottom. A PCB with brushholders and brushes soldered on, is mechanically attached to the side of the secondary. Mounting holes are provided for attaching the secondary to the moving member of the customer supplied table assembly. The secondary comes in different widths and lengths, depending on the required force. Multiple secondaries can be supplied with a single coil assembly to allow for independent moving heads or they can be coupled together to produce larger forces. The standard lengths for the secondaries are 4.38″ for BRA motors and 9.56″ for BRB motors.

H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

You can leave a response, or trackback from your own site.

Leave a Reply

Powered by WordPress | Download Free WordPress Themes | Thanks to Themes Gallery, Premium Free WordPress Themes and Free Premium WordPress Themes