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Encoders
Our premium British-made encoders are rugged and reliable. They are particularly suited to the most challenging applications in process and machine control, motor feedback, factory automation, robotics, belt tensioning, etc. In addition to these applications, rotary optical encoders can also provide electronic commutation in brushless servo systems.
You can browse our encoder products using the links on the left or download our complete catalogue here.
Solid Shaft
Model 15S Servo-Style
Features
- Very High Performance Economical Encoder
- Low Profile 25.4 mm Height and 38 mm Diameter
- Shaft sizes up to 0.250" Diameter
- Up To 12 Pole Commutation Optional (for brush less motor control)
Description
The Model 15S offers a high performance feedback solution in a low profile package, making the Model 15S ideal for commercial and light-duty industrial applications. This industry standard Size 15 (38mm diameter) encoder features a precision bearing set, sealing available to IP64, a durable 1/4" or 6 mm stainless steel shaft, and a selection of servo mount options. The Model 15S may also be specified with features such as extended operating temperatures from -20º C to +100º C, or up to 12 pole commutation for brushless motor control. The Model 15S features our Opto-ASIC circuitry for a clean, reliable signal. Its durable, yet economical design makes it an ideal encoder for high precision OEM applications.
Solid Shaft
Model 711 Single Channel
Model 716 Quadrature
Features
- The Original Industry-Standard Cube
- Wide Choice of PPR's
- Enhanced Technology Using Opto-ASIC circuitry
Description
The Model 711/716 is ideally suited for applications requiring a quadrature output. Designed for compatibility with most programmable controllers, electronic counters, motion controllers, and motor drives, it is ideally suited for industrial applications where it is important that the direction of rotation be known.
The new Opto-ASIC version increases critical performance specifications for the most popular resolutions. This version features advanced Opto-ASIC circuitry, a single chip design that eliminates many board level components. This increases the reliability of an already dependable and durable encoder. With new options continually being added, the 711/716 just keeps getting better, and better!
Solid Shaft
Model 702 Ultra Rugged
50.80mm Diameter
Features
- Standard Size 20 Package (50mm x 50mm)
- Flange, and Servo Mounting
- Up to 30,000 PPR
- 35 kg Max. Axial and Radial Shaft Loading
- IP65 Sealing Available
Description
The Model 702 is a heavy duty, extremely rugged, reliable, yet compact industry standard 50.8mm diameter encoder, designed for harsh factory and plant floor environments. The double shielded ball bearings are rated at 35 kg maximum axial and radial shaft loading to ensure a long operating life. Made to withstand the harsh effects of the real world, both the flange and servo models are rated IP65 with the option of an extra heavy duty shaft seal. With a variety of mounting options in both the flange and servo models, the Model 702 is ideal for both new application and replacements. If you need an encoder that won't let you down, the Model 702 is it.
Solid Shaft
Model 725 Heavy Duty
(Formerly 730 & 735 Series)
Features
- Standard Size 25 Package 63.50mm Diameter
- Up to 30,000 PPR
- Servo and Flange Mounting
- IP65 Sealing Available
Description
Model 725, (Formerly 730 & 735 Series) is specifically designed for the challenges of an industrial environment. But don't let its tough, industrial package fool you; it still has the performance to reach resolutions up to 30,000 pulses per revolution. The Model 725 is available with both flange and servo mounting options. The rugged housing isolates the internal electronics from the shock and stress of the outer environment.
Solid Shaft
Model 744 Heavy Duty
444 Tacho Style
Features
- Standard "444" Style, 115mm Diameter
- Up to 30,000 PPR
- Choice of Shaft Sizes
- IP64 Sealing Available
Description
The 744 is designed to provide a digital encoder signal format to replace traditional Tacho style feedback devices. The heavy duty bearings and mechanical assembly make the 744 perfect for those applications requiring a rugged and dependable encoder.
Solid Shaft
Model 745 Heavy Duty
90mm Encoder
Features
- European 90/80/40mm Configuration
- Up to 30,000 PPR
- Hohner 3000/4000 Direct Replacement
- IP64 Sealing Available
Description
Due to some major technology enhancements, the 745 encoder is now available from 0001 PPR thru to 30000 PPR. This encoder is a direct replacement for the popular 90/80/40 spigot style encoder and may be ordered with a variety of output circuits, shaft sizes, and connector styles. Using the same Opto-Asic technology as most of our encoder range, you have the advantage of high tech signal generation, and a rugged mechanical assembly.
Solid Shaft
Model 755RG 38mm High Precision
Servo or Square Flange Mount
Features
- Miniature Size (38mm Diameter)
- Up to 30,000 Cycles Per Revolution
- Servo or Square Flange
- 1 MHz Frequency Response Available
- Extended Temperature Operating Range Available
Description
The Model 755RG Size Encoder is ideal for applications requiring a small, high precision, high performance encoder. Approximately 38mm in diameter and 38mm long, it will fit where many encoders cannot. Designed with all metal construction and shielded ball bearings, it will provide years of trouble-free use.
The standard servo mount (RG) version is available with a variety of shaft sizes and lengths, and 3 unique sets of fixing hole patterns. The optional flange mounting (MF) is ideal for applications requiring a bolt-on, high precision encoder. With its high reliability and quick delivery, the Model 755RG encoder is the perfect replacement encoder for less reliable encoders of this size.
Solid Shaft
Model 758 - 58mm
Euro-Standard
Features
- Standard Size 58 Mounting (58 mm Diameter)
- Up to 30,000 PPR
- 36Kg Max. Axial and Radial Shaft Loading
- High Temperature Option (100º C)
- IP65 Sealing Available
Description
The Model 758 is a heavy duty, extremely rugged, reliable, yet compact European standard 58 mm diameter encoder, designed for harsh factory and plant floor environments. Shaft loading is no problem for the double-shielded ball bearings; their 36Kg load rating ensures a long operating life. If fitted with the optional heavy-duty shaft seal, the Model 758 is rated IP65. Two standard mounting options are available: Clamping Flange (20 type) or Synchro Flange (26 type). The Model 758 is the perfect replacement encoder for units requiring the popular European mount.
Solid Shaft
Model 7RP Extra Heavy Duty Thru-Shaft
Features
- Extra heavy duty mechanical assembly
- Single Ended or Double Ended shaft
- Reversible face fixing option
- Incorporates Opto-ASIC Technology
Description
The model 7RP provides yet another extra heavy duty encoder which has the advantage of a double-ended male shaft together with a totally reversible mounting configuration. This arrangement will allow for the fixing of measuring wheels on both shafts, thus ensuring secure and error free contact with conveyor, or moving product, during length measurement applications. A single-ended shaft configuration is also available. This encoder employs our highly reliable Opto-ASIC technology.
Solid Shaft
Model 858 58mm
Stainless Steel
Features
- Standard Size 58 Mounting (58 mm Diameter)
- Up to 30,000 PPR
- 36Kg Max. Axial and Radial Shaft Loading
- High Temperature Option (100º C)
- Manufactured in Food Grade Stainless Steel
Description
The Model 858 is a heavy duty, Stainless Steel, extremely rugged, reliable, yet compact European standard 58 mm diameter encoder, designed for harsh factory and Food Industry environments. Shaft loading is no problem for the double-shielded ball bearings; their 36Kg load rating ensures a long operating life. If fitted with the optional heavy-duty shaft seal, the Model 858 is rated IP65. Two standard mounting options are available: Clamping Flange (20 type) or Synchro Flange (26 type). The Model 858 is the perfect Encoder for food industry, wash-down, or marine environments.
Solid Shaft
Model 86A Extra Heavy Duty
Machine Tool Encoder
Features
- Standard 68mm Diameter Package
- Up to 3000 PPR, Opto-Asic Technology
- Square Flange Mounting
- IP65 Double O-Ring Sealed
Description
Model 86A is an extra heavy duty unit which employs a highly reliable Opto-Asic encoder module mounted within a rugged mechanical housing. The heavy duty sealed bearings, together with double O-Ring sealing makes this encoder a serious and reliable alternative to a wide range of machine tool encoders, and at an advantageous price.
Through Bore
Model 121
Auto-Aligning Modular
Features
- Simple, Hassle Free Mounting
- Accepts Larger Shafts up to 15 mm
- Up to 12 Pole Commutation Available
- 0° to 100° C Operating Temperature Available
- Patented Design - #6,608,300B2
- Includes New IP50 Dust Seal Kit
Description
AT LAST! A reliable modular encoder that requires no calibration, gapping, or special tools to install! We have taken the performance of modular encoders to a new level with the Model 121 Auto-Aligning Modular Encoder. This new and innovative design provides simple, reliable, hassle free installation. Simply tighten the shaft clamp, install the mounting screws, and you’re done!
The Model 121 incorporates the latest Optical ASIC technology for greatly enhanced performance. Common problems with other modular encoder designs are warping and deflection, caused by their extensive use of plastic, both of which are virtually eliminated by the Model 121’s all metal construction. For brushless servo motor applications, the Model 121 can be specified with three commutation tracks to provide motor feedback. The optional 100° C temperature capability allows servo motors to operate at higher power outputs and duty cycles.
Through Bore
Model 15T Thru-Bore,or
Model 15H Hollow Bore (Blind)
Features
- Very High Performance Economical Encoder
- Low Profile 25.4 mm Height and 38 mm Diameter
- Thru-Bore sizes up to 10 mm
- Simple, Innovative Flex Mounting System (Global Mounting Standards)
- Up To 12 Pole Commutation Optional (for brush less motor control)
Description
The Model 15T or 15H offer a high performance feedback solution in a low profile package. Unlike modular or kit encoders, the Model 15 utilizes an integral bearing set, and an innovative flexible mounting system which is much more tolerant to axial misalignment or radial shaft run-out. The slotted flex mounts provide 20 or 30 degrees of rotational adjustment for commutation or index pulse timing. Installation is quick and easy! For brush less servo motor applications, three 120° electrical phase tracks can provide up to 12 pole commutation feedback. The optional 100° C temperature options allow servo motors to operate at higher power outputs and duty cycles. The Model 15 provides stable and reliable operation and is an excellent replacement for other manufacturer's modular encoders where a high performance solution is desired.
Through Bore
Model 260 Ultra Versatile
Commutated Thru-Bore
Features
- Low Profile 30.30mm
- Up to 12 Pole Commutation Available
- Thru-Bore Style
- Simple, Innovative Flexible Mounting System
- Incorporates Opto-ASIC Technology
Description
The Model 260’s larger bore (up to 15.875mm) and low profile make it the perfect solution for many machine and motor applications, and is provided with a full Thru-Bore. The Model 260 uses a pioneering Opto-ASIC design, and innovative anti-backlash mounting system, allowing simple, reliable, and precise encoder attachment. Unlike traditional kit or modular encoder designs, its integral bearing set provides stable and consistent operation without concerns for axial or radial shaft runout. For brushless servo motor applications, the Model 260 can be specified with three 120º electrical phase tracks to provide up to 12 pole commutation feedback. The optional extended temperature capability allows servo motors to operate at higher power outputs and duty cycles.
Through Bore
Model 25T Thru-Bore
Encoder
Features
- 63.50mm Opto-Asic Encoder with a low profile (50mm)
- Bore Sizes Ranging From 0.50" to 28mm
- Resolutions to 10,000 PPR
- Versitile Flexible Mounting Options
- RoHS Compliant
Description
Introducing the next generation of high performance encoders - the Model 25T. As contemporary as its appearance, the Model 25T features the largest thru-bore available in a 63.50mm encoder, mounting directly on shafts as large as 28 mm. With resolutions of up to 10,000 PPR, and frequencies of up to 1MHz this industrial strength encoder is perfect for fast revving motors. The 25T features the next generation of proprietary Opto-ASIC sensor which provides superior accuracy and precision counts. The injection molded housing, made from a blend of nylon composites, is grooved with "cooling fins" and can take the extreme heat of the motion control industry. With sealing available of up to IP65 and many new rugged flexible mounting options, the Model 25T can perform in demanding industrial environments.
Through Bore
Model 760 Commutated
Thru-Bore / Blind-Bore
Features
- Size 25 / 63.5 mm Diameter (Hollow Shaft)
- Up to 12 Pole Commutation Available
- Thru-Bore or Blind-Bore Options
- Simple, Innovative Flexible Mounting System
- Incorporates Opto-ASIC Technology
Description
The 760N encoder is configured with either a full thru-bore (which may be fixed at either end of the shaft), or with a blind-bore which uses the front shaft fixing only. The encoder body is retained by means of 2 flexible mountings, or by a single adjustable radius fixing, which compensate for minor shaft misalignment. This encoder can now be provided with commutation signals for use with brushless motor control. Output circuits available include 5-24V RS422, 5-24V push-pull or 5-24V input / NPN open-collector. This encoder also now uses the same pioneering Opto-Asic technology used in the model 260 encoder.
Through Bore
Model 775 Slim Thru-Bore
Features
- Thru-Bore Design For Easy Mounting
- Bore Options to 1.375"
- Incorporates Opto-ASIC Technology
- Resolutions to 4096 PPR
- 100º C Operating Temperature Available
Description
The sleek design of the Model 775 Thru-Bore Encoder makes form and function a successful reality. The slim profile and Thru-Bore design, makes installation easy by simply slipping the bore over motor shafts up to 1.375" in diameter. The advanced Opto-ASIC based electronics provide the superior noise immunity necessary in many industrial applications. With a variety of bore sizes, resolutions, and connector types, application possibilities are endless.
Through Bore
Model 776 Large Bore
Slim Thru-Bore
Features
- Slim Profile - Only 34.55mm In Depth
- Thru-Bore Design For Easy Mounting
- Incorporates Opto-ASIC Technology
- Resolutions to 4096
- Bore Options to 1.875"
Description
The Thru-Bore Model 776 encoder is designed to fit directly on either a motor or other shaft where position, direction, or velocity information is needed. The advanced Opto-ASIC based electronics provide the superior noise immunity necessary in many industrial applications. The Model 776 conveniently features a clamp type mount for fast and easy mounting over a large range of shaft sizes. An optional anti-rotation flex mount maintains housing stability.
Blind Bore
Model 755HS 38mm High Precision
Hollow Blind Bore
Features
- Miniature Size (38.1mm Diameter)
- Up to 30,000 Cycles Per Revolution
- Flex Mounting
- Hollow Bore Option (up to 10mm)
- High Temperature Option
Description
The Model 755HS Size is ideal for applications requiring a small, high precision, high performance encoder. Approximately 38.1mm in diameter and 38mm long, it will fit where many encoders cannot. All metal construction and shielded ball bearings provides years of trouble-free use. A variety of blind hollow bore sizes are available, for shafts up to 10mm. Attaching directly to a motor is quick and simple with the innovative flex mount, first developed by us. This industry standard mount eliminates couplings, increases reliability, while reducing overall length and cost. Where critical alignment is required, a Slotted Flex (SF) is available. A perfect replacement encoder where high reliability is required.
Blind Bore
Model 760 Commutated
Thru-Bore / Blind-Bore
Features
- Size 25 / 63.5 mm Diameter (Hollow Shaft)
- Up to 12 Pole Commutation Available
- Thru-Bore or Blind-Bore Options
- Simple, Innovative Flexible Mounting System
- Incorporates Opto-ASIC Technology
Description
The 760N encoder is configured with either a full thru-bore (which may be fixed at either end of the shaft), or with a blind-bore which uses the front shaft fixing only. The encoder body is retained by means of 2 flexible mountings, or by a single adjustable radius fixing, which compensate for minor shaft misalignment. This encoder can now be provided with commutation signals for use with brushless motor control. Output circuits available include 5-24V RS422, 5-24V push-pull or 5-24V input / NPN open-collector. This encoder also now uses the same pioneering Opto-Asic technology used in the model 260 encoder.
Traverse Slot Shaft
Model 86F Extra Heavy Duty
Machine Tool Encoder
Features
- Transverse Slotted Shaft
- Up to 3000 PPR, Opto-Asic Technology
- 90mm Round Flange with 3 4.5mm Dia fixing holes at 120o on 82mm PCD
- Double O-Ring Sealed
Description
Model 86F is an extra heavy duty unit which employs a highly reliable Opto-Asic encoder module mounted within a rugged mechanical housing. The heavy duty sealed bearings, together with double O-Ring sealing makes this encoder a serious and reliable alternative to a wide range of machine tool encoders, and at an advantageous price.
Linear
Model TR1 - Tru - Trac
Encoder and Spring Loaded Measuring Wheel
Features
- Encoder And Measuring Wheel Solution Integrated Into One Compact Unit
- Spring Loaded Torsion Arm Makes Wheel Pressure Adjustments So Easy
- Easily Installed In A Vertical, Horizontal, or Upside-Down Orientation
- Operates Over A Variety Of Surfaces At Speeds Up To 3000 Feet Per Minute
- Integrated Module Simplifies Your System Design, Reducing Cost
Description
FINALLY! An integrated encoder and spring loaded measuring wheel assembly available in one, easy-to-use, compact unit. The NEW Tru-Trac is a versatile solution for tracking velocity, position, or distance over a wide variety of surfaces in almost any application. Its spring-loaded torsion arm provides a simple-to-adjust torsion load, allowing the Tru-Trac to be mounted in almost any orientation, even upside-down. The threaded shaft on the pivot axis is field reversible providing mounting access from either side. The Tru-Trac housing is a durable, conductive composite material that will eliminate static build up. With operating speeds up to 3000 feet per minute and a wide variety of configuration options, it’s easy to see the Tru-Trac is the ideal solution for countless applications.
Linear
Model LCE
Linear Cable Encoder
Features
- Low Cost Linear Solution
- Imperial and Metric Options
- Up to 1.27M or 50 Inches Full Stroke Length
Description
The Linear Cable Encoder (LCE) provides a low cost alternative for obtaining accurate linear measurements. As opposed to typical rotary shaft style encoders, the LCE has a retractable stainless steel cable, allowing for numerous and unusual measuring configurations. Placing the LCE away from harsh environmental conditions, while still providing precise measurements, gives the LCE an outstanding advantage over shaft style encoders. Installation is easy with a variety of cable exit directions, and perfect parallel alignment is no longer necessary. The heart of the LCE is the 716 Series encoder. The 716 provides a reliable digital pulse train in quadrature format, with resolutions down to 0.1mm. The small overall size, a variety of resolutions, and choice of connector types, makes the versatility of the LCE unbeatable!
Solid Shaft
Model 925 Heavy Duty
Single Turn Absolute
Features
- Standard Size 25 Package (63.5mm)
- Resolutions Up To 12 Bit (4096 Counts)
- Incorporates Opto-ASIC Technology
- Industrial Grade, Heavy Duty Housing
- Wide Range of Operating Voltages (4.75 to 24 Vcc)
Description
The Model 925 Single Turn Absolute is ideal for a wide variety of industrial applications that require an encoder with the capability of absolute positioning output. Its fully digital output and innovative use of Opto-ASIC technology make the Model 925 an excellent choice for all applications, especially ones with a high presence of noise. Available with either round servo or square flange mounting, and a variety of connector and cabling options, the Model 925 is easily designed into a variety of application requirements. The Model 925, with its wide selection of shaft sizes supported by industrial grade, heavy duty bearings, is ideal for rough environments.
Solid Shaft
Model 958 Single Turn
58mm Absolute
Features
- 58 mm Package
- Resolutions Up To 12 Bit (4096 PPR equivalent)
- Incorporates Opto-ASIC Technology
- Industrial Grade, Heavy Duty Housing
- Wide Range of Operating Voltages (4.75 to 24 VCC)
Description
The Model 958 Single Turn Absolute is ideal for a wide variety of industrial applications requiring an encoder with Size 58 mm mounting and absolute positioning output. A rugged, industrial grade housing allows the Model 958 to be used in a wide variety of applications calling for a reliable, heavy-duty encoder. In addition, its innovative Opto-ASIC circuitry, coupled with its digital output, make it an excellent choice in those applications plagued by unusually high levels of electrical noise. Available with a choice of either type 20 or type 26 servo mounting, and a variety of connector and cabling options, the Model 958 is easily designed into a variety of applications. The Model 958 can also be ordered with stainless steel housing, heavy duty bearings, and an IP66 seal.
With so many options that make the Model 958 ultra-durable, this absolute encoder can tolerate the worst environments!
Through Bore
Model 960 Single Turn
Thru-Bore Absolute, 8-11 Bits
Features
- Low Profile - 40mm
- Thru-Bore and Blind Bore Styles
- Sturdy all Metal Construction
- State-of-the-Art Opto-ASIC Circuitry
Description
The single-turn Model 960 Absolute Series provides an unique solution to a wide variety of industrial applications requiring absolute position information. By providing a low profile package of just 40mm, a variety of thru-bore and blind-bore sizes, and an easy to use flexible mounting system, the Model 960 goes where traditional absolute encoders do not fit. In addition, its innovative Opto-ASIC circuitry, coupled with its digital output, make it an excellent choice in those applications plagued by an unusually high level of electrical noise.The Model 960 can easily be mounted directly on a motor shaft, bringing the advantage of absolute positioning in an all metal housing while eliminating the fixtures, couplers, and adapters required by other absolute encoder designs.
Blind Bore
Model 960 Single Turn
Thru-Bore Absolute, 8-11 Bits
Features
- Low Profile - 40mm
- Thru-Bore and Blind Bore Styles
- Sturdy all Metal Construction
- State-of-the-Art Opto-ASIC Circuitry
Description
The single-turn Model 960 Absolute Series provides an unique solution to a wide variety of industrial applications requiring absolute position information. By providing a low profile package of just 40mm, a variety of thru-bore and blind-bore sizes, and an easy to use flexible mounting system, the Model 960 goes where traditional absolute encoders do not fit. In addition, its innovative Opto-ASIC circuitry, coupled with its digital output, make it an excellent choice in those applications plagued by an unusually high level of electrical noise.The Model 960 can easily be mounted directly on a motor shaft, bringing the advantage of absolute positioning in an all metal housing while eliminating the fixtures, couplers, and adapters required by other absolute encoder designs.
Accessories
755 Accessories
Cover & Connector Types / Flanges
Accessories
Accessories - Flanges & Mounting Brackets
Accessories
Accessories - Connectors/Cables
Accessories
Accessories - Flexible Couplings
Accessories
Accessories - Measuring Wheels
Accessories
Accessories - Encoder Power Supply
Features
- A clean source of dedicated power for your encoder is an important factor when designing a reliable system. Now available from British Encoder are small, easily mounted Din Rail power supplies specifically chosen to power encoders. Designed for space efficiency, these compact power supplies are available in 5, 12, or 24 Vcc.
- Easy to see LED indicators show the power supply is working properly. Screw type terminals easily accommodate wires from SWG 24 to 14. The shock proof housing is both UL and CE approved.
- These supplies have been tested to work with all our Encoders. Save yourself time and money, call British Encoder today and order a power supply that you know will work with your encoder!
Signal Splitter
RXTXD Receiver-Transmitter Unit
Versatile Encoder Interface
Features
- DIN Rail Mount.
- Level Changes from Vcc to 5V.
- Signal Conditioner, or Repeater for Distance Transmission.
- 2 or 3 Way Splitter/Level Changer.
- Encoder Tester/Verifier.
Descriptions
This lightweight DIN rail mountable unit, Line Driver and Line Receiver, comes in a stylish green PC/ABS self-extinguishing material blend. Configurable as a level changer, line repeater, splitter or encoder tester. The RXTXD will accept TTL, RS422, RS455, PP, NPN, NPN OC, or, PNP encoder inputs at 5V, or HTL, PP, NPN, NPN OC & PNP at 6-28V. It will provide up to 3 outputs in any combination of TTL, RS422, RS485, PP, NPN or PNP, at 5V, or, HTL, PP, NPN or PNP, at 6-28V. A series of LEDs on the front panel indicates power and signal presence. Connections are made via the easily accessible screw terminals as standard. This device may be used as both as Line Driver and Line Receiver.
Signal Splitter
Splitter-Transmitter Module
Encoder Signal Broadcaster
Features
- DIN Rail or Flange Mountable
- Up to 5 Way Splitter
- Level Changes to 5V, 12V or Vcc
- Tristatable Outputs
- Power On and Signal LEDs
Descriptions
Introducing the SPTX splitter-transmitter! DIN-rail or flange mountable, the module can be configured as a repeater, splitter, level changer, signal conditioner or encoder tester and will accept PP, HV or OC inputs at 5-24V via screw terminal connections. Up to four separate outputs can be delivered through 9pin D-type connectors on the front panel, with an additional 5V output capability via screw terminals (for daisy-chaining with subsequent units). Each D-type output can also be tristated by pulling its respective control line to +5V. A bank of LEDs on the case provides indication for power and signals.
Downloads
Output Circuits
Contact Us
+44 (0)845 539 0068
