Pre-tensioned belt driven rotary stage provides low cost solution for high precision angular positioning Email - or

New ServoBelt precision rotary stages

• Pre-tensioned belt driven rotary stage provides low cost solution for high precision angular positioning
• Flexible options include wide choice of encoder feedback and motor mount configuration

Ash Vale, Surrey, UK - December 2009:
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 competitively priced package and provide a competitive belt driven alternative to direct drive and worm-wheel variants.

The ServoBelt Precision Rotary Stage uses a novel pre-tensioned belt drive mechanism for high stiffness and maximum positioning repeatability. Offering a practical and lower cost alternative to direct-drive rotary tables, and with improved dynamic 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 cabling 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 profile 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 positioning 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 better) at any point on the stage.

The ServoBelt Rotary range is aimed at high precision angular positioning in production and test systems applications for medium-heavy mechanical processes and metrology. The durable anodised aluminium housing 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 Mclennan provides a complete design and commissioning service for customised mechatronics systems that can combine linear and rotary positioning components, motor drives and motion controls.

New Pittman® brand AB series brushless servo motors s.r.l. Email - or

Mclennan launch new Pittman® brand AB series brushless servo motors

Ash Vale, Surrey, UK - November 2009 :
Now available from Mclennan Servo Supplies, the recently announced Ametek® Pittman® brand AB series brushless servo motors, available in NEMA 23, 34 and 56 frame sizes.

These high performance motors provide speeds from 2800 rpm to 5200 rpm and continuous stall torques from 0.42 Nm to 12.88 Nm in a wide selection of motor lengths to suit motion control applications ranging from medical and industrial equipment to instrumentation and automation machinery.

The IP 65 rated AB range includes optional Hall Effect commutation and a wide selection of optical encoders, brakes and precision servo gearboxes to match application requirements. These robust and durable motors feature long-life sealed bearings and a smart smooth finish for direct mounting to customers equipment and, designed with ease of installation in mind, include integral bayonet mounting connectors for motor and optional encoder feedback with mating power and feedback cables available.

Suitable for drive voltage ratings up to 325 VDC, the motors have medium to high voltage constant values to suit the low to medium bus voltages found in modern high efficiency servo drives.

Mclennan has a wide range of servo drive and motion controls to suit these motors and 3H3using its own design, manufacturing and distribution capability is able to offer complete integrated mechatronics assemblies based around these motors with customised mechanics and other power train components.

New miniature planetary gearmotors from Micro-Motors s.r.l. Email - or

Mclennan launch new miniature planetary gearmotors from Micro-Motors s.r.l.

• Brushed DC drive motors fitted with interference suppression electronics
• Planetary brushed DC gearmotors for medium and high torque miniature power transmission applications

Ash Vale, Surrey, UK - October 2009 :
As the exclusive UK distributor for Italian small motor specialists Micro-Motors s.r.l., Mclennan Servo Supplies has launched two new planetary brushed DC gearmotors for medium and high torque miniature power transmission applications.

The E192 and P205 series both feature low-backlash precision grade planetary gearboxes with dual bearing output shaft support for maximum life and load carrying capacity. The E192 returns 300 Ncm maximum torque and the larger P205 is specified at 900 Ncm.

Both series offer a wide range of gear ratios from 3.66:1 to 625:1. The E192 has a nominal diameter of 40.5 mm and lengths from 86 mm to 107 mm whilst the P205 has a 42 mm square gearbox housing and lengths from 120.5 mm to 158 mm.

Brushed DC drive motors fitted with interference suppression electronics are available in 12 and 24 VDC versions as standard and equipped with rear output shaft for an optional two-phase Hall-effect encoder or alternative position sensors that Mclennan are able to fit as a part of its custom design service. Motor termination is via convenient spade terminals and encoders have connectors with flying leads for straightforward installation.

Mclennan hold stock for fast delivery of popular reduction ratios through the range and can provide complete mechatronic solutions based around the E192 and P205 planetary gearmotors including drives, multi-axis motion controls and custom designed mechanics with other power train components.

Intelligent Servo Drives and motors from AMP Email - or

Mclennan launch new intelligent servo drives and motors from AMP with wide choice of control options.

• Applied Motion Products new intelligent drives and matched servo motor aimed at cost competitive OEM applications.
• Four levels of control including CANopen allows complete control flexibility.

Ash Vale, Surrey, UK - August 2009 :
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 Supplies, combine powerful features and economical pricing in a choice of four control options - from simple analogue or pulse & direction 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 connection and screw terminal connectors for motor and power supply. A front mounted LED array provides error and operational status.

The fully protected drive includes a complement of 8 digital inputs, four digital outputs and analogue inputs for speed and positioning modes. All I/O is configurable for common machine control tasks such as fast encoder input, home and limit switches.

For a competitive and completely packaged motion control solution, AMP V series matched performance NEMA 17 and 23 frame servo motors are available with motor power and feedback connectors fitted. A selection of interconnecting cables and extension cables are also available to ensure fast and straightforward installation in the customers' application. AMP Quick Tuner™ software which features a built-in digital oscilloscope is available for fast drive configuration.

A choice of three drive control options and a CANopen option allows maximum application flexibility for the SV7 range. The basic -S version provides a selectable range of analogue control in torque or velocity modes with encoder feedback as well as digital pulse and direction. The -S can also operate in an ASCII communications host command mode. The -Si (Simple Indexer) version allows pre-programmed stand alone operation using AMP Si Programmer™, a Windows™ based point-and-click graphical software for simple motion control with built-in tuning.

For the most sophisticated control, the -Q controller version is a fully integrated intelligent drive using the AMP high level 'Q' programming language for complete multi-tasked motion and machine control. The -Q can handle conditional processing, maths functions and high speed position registration for complex move sequencing and electronic gearbox applications.

The -S, -Si and -Q control options share compatibility with AMP ST stepper motor drives and BLu series high power servo drives and may be mixed in applications for cost and performance optimisation. The CANopen option board allows -Q controller program sequences to be triggered and modified using the CANopen network creating a powerful distributed motion control system for the SV7 drive.

Multi-axis host control or standalone operation is also possible with AMP SiNET Hub and Si programmer software which allows up to four or eight -S, -Si, or -Q drives to be configured, sequenced and networked with a PC, PLC or HMI in host or standalone modes.

ServoBelt precision belt drive Email - or

Mclennan launch ServoBelt precision belt drive with improved stiffness, accuracy and repeatability.

Ash Vale, Surrey, UK - May 2009 :
Mclennan Servo Supplies has launched a new and innovative long travel belt drive system that offers higher dynamic performance, increased accuracy capability and much improved repeatability than conventional belt driven linear positioners. The ServoBelt from USA based servo-mechanics experts Bell-Everman uses a patent-pending design based on two steel reinforced polyurethane timing belts that are meshed and guided through a servo driven toothed roller and idler system held within a carriage supported on linear motion guide bearings and Bosch 45 series T-slot extruded profile.

As the active belting under tension is effectively restricted to less than 75 mm regardless of the travel range, a much increased and uniform stiffness is possible when compared to conventional belt drive systems. This means that servo tuning can have much higher gain factors and superior settling times, allowing significant dynamic performance increase throughout the travel range or the ability to use smaller power motors to achieve the same results. The design also considerably improves both positional accuracy and repeatability specifications for belt driven systems - particularly for longer travel applications.

The standard ServoBelt covers travel ranges from 340 mm to 6040 mm in 60 mm increments and has an out-of-the-box bi-directional accuracy to ±60 microns, unidirectional repeatability of ±10 microns, acceleration to 4 g and speeds to 5 m/sec. In short, the range offers belt drive levels of overall cost, with screw drive dynamic response and close to linear motor speed performance.

The adaptable ServoBelt may be configured for single axes or for multi-axis Cartesian robot systems complete with energy chain cable management if required. The carriage has NEMA 23 and 34 frame sized servo motor mountings with a choice of five motor power ratings available with 16000 and 20000 line rotary encoders.

A wide range of standard and wrap-around rail options are available with single or dual linear motion guide bearings. ServoBelt technical data, available from Mclennan, includes motor sizing for peak axial thrust up to 889 N and load ratings for pitch, yaw, roll and shear type offset loads; and for normal loads with moving mass up to 5.35 kg. The design can also accommodate multiple moving carriages on the same axis for increased versatility or fit multiple motors to the same carriage for increased thrust. Carriages can move or be held fixed with moving rails - allowing a host of design possibilities for large format handling and assembly systems in packaging, processing and manufacturing equipment.

The low maintenance ServoBelt system is lubricated for life with stainless steel hardware for maximum durability. Options include infinitely adjustable limit sensors and performance enhancement can yield an axial repeatability of just 2 microns with a 1 micron linear encoder option, and higher speeds are available on request. Mclennan are able to assist with design and commissioning for complete systems and can supply ancillary equipment to complement the installation of the ServoBelt system.

Expanded range of high precision linear position encoders Email - or

Mclennan expand range of high precision linear position encoders with new miniature series.

Ash Vale, Surrey, UK - April 2009 :
Mclennan Servo Supplies, the exclusive UK distributor for NUMERIK-JENA has added a new range of miniature incremental linear encoders for space-restricted applications. With a selection of accuracy classes to +/- 1 µm, and with resolution from 0.05 µm to 5.0 µm, the LIK 41 range features a finger-tip sized optical scanning head and is available with a choice of 8 mm wide self-adhesive graduated steel tape scales based upon NUMERIK's SINGLEFLEX and DOUBLEFLEX standard with measuring lengths up to 1000 mm. A glass substrate scale version is also available for measuring lengths to 100mm.

The LIK 41 series scanning head measures 24 mm long x 11 mm wide x 6 mm deep and has a mass of just 3.0 g. An integral 3.7 mm diameter cable, up to 3 m long, is terminated in a 15-pin D-sub connector that includes all signal processing and interpolation electronics using the standard RS422, 1Vpp format. A choice of sinusoidal or square wave signal output with up to 100x interpolation is available. Maximum scanning frequency is 500 kHz with an operational temperature range of 0ºC to +55ºC.

NUMERIK graduated scale steel tapes have a durable polished finished that is resilient to abrasion and corrosion and are easily assembled to customers' equipment using simple but effective self-adhesive fixing. SINGLEFLEX versions are used for measurements where the machine element has a coefficient of expansion equal to steel. For fixing to materials, the DOUBLEFLEX version includes a second steel strip with flexible layer of adhesive material sandwiched between. The intermediate layer forms a stable bond and allows differential expansion to take place without affecting the measuring standard. Both types of tape can include reference marks for machine datum and homing. The single tape version can attain +/- 1.0 µm accuracy grades and the double version from +/- 2 µm - the lowest accuracy class is +/- 5 µm.

Mclennan covers the full range of NUMERIK linear and rotary encoders which are available in kit form, as separate reading head and scale versions or as completely sealed, self-contained measuring systems suited to harsh environmental conditions. Across the range of linear encoders, measuring ranges up to 10 m are available with best accuracy grade to +/- 1.0 µm and resolution to 0.05 µm. Rotary encoders include optical grating disks in diameters up to 210 mm with separate reading heads offering extremely high levels of angular accuracy with high repeatability.

NUMERIK encoders are found in high precision measurement and position feedback applications across automation technology, robotics, metrology, and motion control. Mclennan Servo Supplies, the Surrey based designer, motion component distributor and manufacturer of mechatronics solutions provide complete sales and support for the range.

New range of miniature DC gear motors Email - or

Mclennan launch new range of miniature DC gear motors.

Ash Vale, Surrey, UK - March 2009 :
Mclennan Servo Supplies has recently launched an additional new range of competitively priced miniature DC geared motors from the Italian manufacturer MICRO MOTORS S.R.L. This new range includes both spur and planetary geared motors with reduction ratios from 10:1 to 1470:1 and usable torque up to 900 Ncm making them ideal for powertrain applications.

These geared motors are available from 4V to 24V with full interference suppression included. The series L149 and B-BS138F also benefit from precious metal brushes for superior electrical performance. The planetary geared motors feature dual ball bearing supported output shafts for long life and maximum axial loading capability. All models can be supplied with an additional Hall Effect encoder for commutation and/or positioning.

Micro Motors' primary objectives are customer satisfaction through a programme of constant research and development, modern production techniques, high quality materials, 100% quality inspections combined with close cost monitoring. This results in an attractively priced range of geared motors with excellent quality credentials.

Mclennan has acquired over the years an extensive experience of the Micro Motors range, confirming the quality of its products in a wide range of existing applications. The recent attainment by Micro Motors of ISO 9001 certification as a further guarantee of quality and reliability has convinced Mclennan to promote the full range.

AMETEK® TIP appoint Mclennan as official partner distributors for MAE®, Pittman® and MCG motors and drives Email - or

AMETEK® TIP appoint Mclennan as official partner distributors for MAE®, Pittman® and MCG motors and drives.

• Mclennan adds new brushed and brushless motor and drive ranges with exclusive distribution deal with major USA motion specialist.

Ash Vale, Surrey, UK - February 2009 :
Mclennan Servo Supplies has been appointed as the official UK and Ireland distributor and stocking partner for Pittman, MCG and MAE branded motors, gearmotors and drives from USA motion specialist AMETEK Technical & Industrial Products (TIP).

AMETEK TIP has appointed Mclennan, already a long standing distributor for MAE stepper motors, after a comprehensive search as part of its European distribution reorganisation. Together the three manufacturer's ranges span the complete small & precision brushed and brushless motor market and extend to high-torque stepper motors up to 12 Nm and high performance brushless servo motors to 38 Nm. All companies provide customisation to standard products and each range is supported with gearboxes, brushed DC and brushless servo drives.

Pittman brushed and brushless motors are characterised by their wide choice of standard products and numerous custom options including on-board electronics, brakes and special shafts. The brushless motor range includes slotted and slotless motor technology for a wider choice of power, efficiency and performance.

Italian manufactured MAE steppers are available in NEMA 16 through 42 frame sizes and in a choice of three magnet technologies to match price and performance requirements.

MCG brushed motors are available in NEMA 23 and 34 frame sizes and feature low cogging torque with simple brush commutation for smooth performance whilst its selection of brushless motors spans four ranges - offering a wide choice of standard configurations and optional gearboxes, encoder technologies, and brakes. An integrated motor and drive range is also available along with variable speed and brushless servo drives.

The appointment consolidates Mclennan's distribution of MAE stepper motor products and provides a comprehensive stock delivery and local support service for customers of Pittman and MCG in the UK and Ireland. Both Pittman and MCG products fully complement Mclennan's existing product range which covers precision motion control based mechatronic products with the ability to provide custom designed turn-key systems.

EMC performance hybrid stepper motors with integral connectors and Encoders Email - or

Mclennan's EMC performance hybrid stepper motors with integral connectors now include encoder options.

• Range of stepper motors that simplify EMC compatible installation with integral metalised UTO connectors are now available with optical encoders.

Ash Vale, Surrey, UK - February 2009 :
Mclennan's 23HT18C and 34HT18C hybrid stepper motors provide a neat solution for EMC compatible motion control. The high performance NEMA 23 and 34 frame range includes a rear housing extension complete with a UTO type metalised connector. The range has now been augmented with the addition of a rotary encoder option to allow position feedback for applications where position verification is important.

A choice of encoder resolutions is available with quadrature output complete with a Z marker channel for accurate axis homing. Encoder interfacing via an D type connector, also EMC compatible and fitted to the rear housing, completes the assembly. Optional mating plug and screened cable assemblies for both motor and encoder are available to simplify installation and maintain EMC compatibility on the customer's machine.

The high torque 23HT18C and 34HT18C range includes a neodymium magnet system for holding torques from 0.39 Nm to 7.35 Nm with usable speeds up to 10000 full steps per second. With full microstepping capability, the range is available for unipolar, bipolar, parallel or series connection in current ratings up to 5A/phase.