end of year review - part 2
Mclennan launch ServoBelt
Mclennan has launched a new range of motorised belt- driven rotary stages from USA servo-mechanics innovator Bell-Everman that combine high precision positioning with excellent dynamic capability in a com- petitively priced package. The ServoBelt Precision Rotary Stage uses a nov- el pre-tensioned belt drive mechanism for high stiffness and maximum positioning repeatability. Of- fering a practical and lower cost alternative to direct-drive rotary tables, and with improved dynam- ic performance over tradition worm-wheel stages, the 5:1 belt reduction ratio provides an advantageous motor-to-load inertia match whilst allowing high speeds and rapid accelerations. The compact design includes a 165 mm diameter tabletop with a large 100 mm aperture to allow for ca- bling and services feed-through. The stage features pre-lubricated, long-life duplex type angular contact bearings for smooth motion, practical load capacity and maximum stage rigidity, with a NEMA 23 sized servo motor providing up to 6.6 Nm continuous torque at speeds to 1200 rpm. At just 61 mm high, the low pro- file stage is easily integrated into applications with user configurable above- or below-stage motor mounting options for complete installation flexibility. Side motor mount options are also available. A wide choice of position feedback options include rear motor mounted optical encoders or direct table mounted ring encoders which can provide a position- ing resolution from 14 arc-sec to 0.4 arc-sec – even for such a high resolution, the motor speed can be over 80
rpm. Bi-directional repeatability through these options is from 160 arc-sec down to just 0.9 arc-sec. Overall geometric accuracy is stated at 2.5 microns TIR (or bet- ter) at any point on the stage. The ServoBelt Rotary range is aimed at high preci- sion angular positioning in production and test systems applications for medium-heavy mechanical processes and metrology. The durable anodised aluminium hous- ing is finished with stainless steel hardware and the
tabletop can be machined to suit customer interfacing. The Servobelt is available for use with third party NEMA 23 frame servo or stepper motors and Mclen- nan provides a complete design and commissioning service for customised mechatronics systems that can combine linear and rotary positioning components, motor drives and motion controls.
For more information call 08707 700 700 or visit www.mclennan.co.uk.
Mclennan Launch New Servo Drives and Motors
Applied Motion Products Inc (AMP) new SV7 range of intelligent digital servo drives and matching motors, available exclusively in the UK and Ireland from Mclennan Servo Sup- plies, combine powerful features and economical pricing in a choice of four control options - from simple analogue or pulse & di-
rection operation through to graphical point- and-click multi-axis motion programming with CANopen distributed control connectivity. Aimed at cost competitive OEM automation applications, the SV7 range features a DSP controlled power stage with selectable current rating up to 7 A continuous and 14 A peak from a 24 to 80 VDC input. AMP’s Digital DQ current loop with sine commutation provides smooth motion across a wide bandwidth for precise position and speed control. The panel mounted drive features D-type connectors for machine interfacing I/O and encoder feedback with separate RJ11 communications connec- tion and screw terminal connectors for motor and power supply. A front mounted LED array provides error and operational status.
For more information call 08707 700 700 or visit www.mclennan.co.uk.
Packaging Gazette 25
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