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SG Transmission > The Perfect Solution
SG Transmission began life in 1972 designing and manufacturing electromagnetic clutches and brakes and since then has grown to provide:
• Customised power transmission solutions.
• Time effective two-week turnaround for 90% of customer applications.
• Cost effective volume production, utilising its operations in China and India.
• In house UK electromagnetic design support.
• Network of sales engineers and agents to provide on site customer support.
This is what makes The Magnetic Impact of SG Transmission so attractive and why we have a customer retention rate of over 90%.
All our people are Passionate about the company and its products and are very keen to share this Passion with our customers so please contact us today and find out for yourself how The Magnetic Impact of SG Transmission can help your business.
We await your call on +44 (0) 1388 832 252 or e-mail us at enquiries@stephensongobin.com
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| Products SG Transmission - Experts at designing and manufacturing electromagnetic clutches and brakes. Read More... |
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| Newsletter (pdf) Keep up to date with SG Transmission by downloading our SG Transmission newsletter here. Read More... |
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| Company Profile SG Tranmission is a division of the Stephenson Gobin Group, which is owned by British Engines Ltd Group (BEL) Read More... |
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SG Transmission Products
Clutch type 51
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SG Transmission Type 51 clutches offer a low-cost and simple option for the transmission of motion in a drive train. Three basic types are currently available allowing for various mounting options and flexibility in design. However, over 50% of our throughput are customised units in batches from 10 to 2,000. Please contact us using the link above to discuss your specific requirements | The three basic types are:
Flange Mounted - for mounting directly to motor or gearbox bodies etc... Ball Bearing Mounted – For mounting directly onto shafts for high speed or high force applications Sleeve Bearing Mounted – for mounting onto shafts where lower forces and speeds are required |
Brake type 52
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SG Transmission Type 52 powered on electromagnetic brakes are all FM (flange mounted). These brakes can be supplied as shown on the data sheet at the below pdf file. The armatures can be supplied as C.L., C.C., or C.R. types (please refer to data sheets on the right) and consist of an armature plate and return spring | (in C.L. form), or a hub, with or without bearings, to suit the needs of the drive train. The armature must be positioned with an air-gap to allow efficient operation, and must be checked at regular interval and reset where necessary. |
Clutch Brakes type 54
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SG Transmission Type 54 Modules combined clutch
and brake packages are normally used in belt or chain driven applications where the rotary motion is derived from a remote location or from a co-axially coupled motor.
They are used whenever the prime mover is required to run continuously and the unit which it is |
driving is to have a controlled “stop - start’ action. Allowing an electric motor to run and controlling its output with a combined clutch brake unit reduces the power consumption of the system considerably. |
Clutch brake modules type 55
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SG Transmission clutch brake modules are used whenever the prime mover is required to run continuously, and the output of the driving device requires a controlled “stop and start” action. This allows an electric motor to run while controlling its output via a clutch brake module. This will reduce the power consumption of the system considerably. | These modules are precision engineered with positive clutch and brake action with no backlash. They can be controlled by relatively simple solid state electronics to give accurate stopping and starting with frequencies over 300 cycles per minute. |
Brake Type 56
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SG Transmission Type 56 electrically
released brakes use double sided non-asbestos linings and a metal hub drive for safety. Three coaxial coil springs apply the braking force.
Complete brakes can be supplied with or without a flange, see data sheet below. Note: if an application where corrosion of the friction surfaces |
is likely (leading to difficulty in disengaging the brake), rust resistant steel friction discs are available.
A rubber dust sealing ring is available for popular sizes to prevent ingress of foreign matter. A hand release mechanism can be supplied when required |
Permanent Magnet Brakes
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SG Transmission permanent
magnet (fail-safe) brakes incorporate the use of high specification Rare-Earth materials to ensure a positive stopping action in all types of rotating machinery.
These power-off devices are designed so that when the power is removed from the unit, for whatever reason, the magnetic energy of a permanent |
magnetic disc is channeled and controlled to attract the steel armature plate across an air-gap, thus clamping it in its place against the stationary field housing to give the required braking effect |
Low Cost Slip Clutch
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EASY INSTALLATION WITH NO ADJUSTMENTS Units are provided pre-assembled to a specific torque range, so there is nothing to adjust. STABLE TORQUE A consistent torque is maintained because of the hysteresis principle and is consistent within allowable speed range. |
LONG OPERATIONAL LIFE Permanent magnets and magnetic particles transmit torque, therefore wear is virtually eliminated. NO CONTAMINATION Units are sealed which prevents any particles from contaminating the machine, and also prevents contamination of the clutch by the machine environment. |
Holding Magnets
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SG Transmission supply electro-magnets in any voltage to suit your application including 24V d.c. and 240V a.c. This when combined with matching to the mounting and holding force you require provides the most cost effective electromagnet for any application. |
All the magnets are supplied with flying leads as standard, however size 50 and above electromagnets can be fitted with a 3-pole plug and free sockets.
• Simple Construction. • 7 Standard sizes available. • Interchangeable. • Holding forces from 140N to 3500N. |
Permanent Magnet Hysteresis Clutches and Brakes
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DESIGNED FOR CONTINUOUS SLIP The 51-PC/51-PB series clutches and brakes have been designed to maintain high performance in continuous slip applications. HIGH CYCLE CAPABILITY & LONG LIFE The use of high wear particles assures long operational life in high cycle applications |
RELIABLE & STABLE TORQUE The 51-PC/51-PB series clutches and brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship between torque and exciting current is directly proportional, offering constant torque, independent of slip speed. |
Magnetic Particle Clutches and Brakes
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FAST RESPONSE The OP series has been designed to provide fast response. Response rates can be further quickened through overexcitation circuits. STABLE TORQUE The OP series produces consistent and repeatable torque. |
LONG LIFE The OP series sturdy construction and precise formulation of the magnetic particles combine to provide extended life. SLIP CAPACITY OP series clutches and brakes are designed to deliver high performance under constant slip conditio |
Electromagnetic Particle Clutches and Brakes
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RELIABLE AND STABLE TORQUE The 51-PC/51-PB series clutches amd brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship between torque and exciting current is directly proportional, offering constant torque, independent of slip speed. |
DESIGNED FOR CONTINUOUS SLIP The 51-PC/51-PB series clutches and brakes have been designed to maintain high performance in continuous slip applications through maximum and continuous heat dissipation. |
Flexible Couplings
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FEATURES / TYPICAL INSTALLATION Gummi has over 35 years of experience supplying the global industrial power transmission industry. Our engineered solutions include a broad range of products including; flexible, pneumatic, hydraulic couplings, and various types of Air Clutches and Brake. Gummi is synonymous with the characteristics of quality products and total customer service. All our products are manufactured according to the ISO 9001/2000 Quality Management System and Norms. |
We will continue to improve upon our current product lines, and innovate
new products in order to provide a wide variety of power transmission solutions.
All this is accomplished with the state of the art engineering and design
systems, advanced production and machine systems, and a customer oriented
company culture which will be the vehicles to lead Gummi to the forefront
in the global power transmission industry.
The applications for the Gummi product are endless. As our units can be found in operating in every corner of the world, within but not limited to the Cement, Metal forming, Mining, Maritime, Petrochemical, Pulp/Paper, Steel and Trade industries. |
SG Transmission Products
• Holding Magnets
• Power on Clutches
• Power on Brakes
• Combined Clutch Brakes
• Clutch Brake IEC Modules
• Spring Applied Brakes
• Permanent Magnet Brakes
• Low Cost Slip Clutch
• Permanent Magnet Hysteresis Clutches and Brakes
• Magnetic Particle Clutches and Brakes
• Electromagnetic Particle Clutches and Brakes
• Flexible Couplings
A division of the Stephenson Gobin Group
• Holding Magnets
• Power on Clutches
• Power on Brakes
• Combined Clutch Brakes
• Clutch Brake IEC Modules
• Spring Applied Brakes
• Permanent Magnet Brakes
• Low Cost Slip Clutch
• Permanent Magnet Hysteresis Clutches and Brakes
• Magnetic Particle Clutches and Brakes
• Electromagnetic Particle Clutches and Brakes
• Flexible Couplings
A division of the Stephenson Gobin Group
SG Transmission Product Datasheets
• Holding Magnets Datasheet
• Power on Clutches Datasheet
• Power on Brakes Datasheet
• Combined Clutch Brakes Datasheet
• Clutch Brake IEC Modules Datasheet
• Spring Applied Brakes Datasheet
• Permanent Magnet Brakes Datasheet
• Low Cost Slip Clutch Datasheet
• Permanent Magnet Hysteresis Clutches and Brakes Datasheet
• Magnetic Particle Clutches and Brakes Datasheet
• Electromagnetic Particle Clutches and Brakes Datasheet
• Holding Magnets Datasheet
• Power on Clutches Datasheet
• Power on Brakes Datasheet
• Combined Clutch Brakes Datasheet
• Clutch Brake IEC Modules Datasheet
• Spring Applied Brakes Datasheet
• Permanent Magnet Brakes Datasheet
• Low Cost Slip Clutch Datasheet
• Permanent Magnet Hysteresis Clutches and Brakes Datasheet
• Magnetic Particle Clutches and Brakes Datasheet
• Electromagnetic Particle Clutches and Brakes Datasheet