CONTACT US: SILVERCREST/SME. Email: sales@SilvercrestSubmarines.com
SUBMERSIBLE SUBSEA and ROV ELECTRIC MOTORS. Silvercrest/SME build and repair ROV submersible motors for all subsea applications. We design, manufacture, and supply, submersible electric motors for all SUBSEA and ROV, SUBSEA equipment, also for any special purpose submersible electric motor requirements. We repair and rewind large high voltage (500kW, 6600V) submersible electric motors.
Silvercrest-SME has placed a 100Hp submersible subsea Rov motor (as illustrated below) on standby. For emergency availability to all Rov operators. The motor has the following specification and is a direct drop in replacement for the Curvetech 100HP unit. The motor is presently set up to receive a Rexroth A10VSO140 pump, but can be modified to accept other pump models if required.
Silvercrest/SME have supplied six 400kw ROV20-4 motors, 4pole/3300vac/3 phase/60hz, stainless steel construction. Single ended for fitment with Sauer hydraulic pumps Series-90-L250. Rated for 3000m depth operations. The 260kW/ 3000V / 60Hz / 2 pole pump motors (designed specifically for use in the horizontal axis) were fitted with shafts at both ends, in order to mate with three tandem mounted hydraulic pumps on one end and a Hayward Tyler M6 single stage water pump-set on the opposite end. In this 260kW model, rather than using the pivot shoe arrangement, typical of vertically oriented pump-sets, heavy duty tapered roller bearings were fitted to the rotor to manage the water pump induced end-loads. Thus giving a calculated bearing life in excess of 11,000 hours, even when used in the horizontal axis. Depth rating on each motor is 10,000 meters, with oil filled compensation. Motor housings are 316 stainless steel, with Mylar coated windings (the ultimate in winding coating technology) being used in each motor at the request of CTC, giving an insulation rating of >16kV at a temperature of 140 degrees C.
The new propulsion system is 240VDC based, using a 6-pole SME submersible subsea motor with its invertor drive programmed for maximum frequency output of 40-45 Hz. Using a directly driven motor to propeller configuration, this relates to a top speed of 900RPM. The thruster nozzle and propeller were designed for optimum performance at this speed, with as linear a performance profile as possible.
As the supply to the inverters was derived from a battery, the issue of supply frequency was not a concern. Therefore we opted for 50Hz inverter units as these are more ‘standard’ and therefore more readily available and cheaper. Silvercrest/SME controller specialists carried out the initial invertor installation and commissioning of the subsea motors and controllers. During installation the motor controller sets were ‘dynamometer’ tuned using an in-built optimization facility. The controllers can then be either generically programmed for use in any location or individually in-situ programmed to provide optimum operating performance for each given motor operating position.
SUBMERSIBLE MOTORS, ROV MOTORS, SUBSEA MOTORS for sale.
MOTOR-PUMP SETS, ROV HPU for sale.
TIDAL ELECTRIC GENERATORS.
Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, Rov motors, and subsea motors, motor-pump sets, and HPU's for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems. For use in the offshore Oil and Gas and Telecommunications industries, and subsea to depths of 4000m. We offer a range of motors, motor-pump sets, ROV HPU, submersible, subsea and Rov motors (5hp to 1500hp) for use in the more popular classes of subsea ploughs and Rovs. All of these motors are available in either SS316, Duplex, Super Duplex stainless steel, or with a hard anodized aluminium finish. We can offer subsea submersible motors with a wide range of speeds and voltages (including 3000v, 6000v and 10,000v). We can design and build motors to suit your individual and special project requirements. We refurbish and service a wide range of submersible motors.
Our product is excellent, our prices very competitive, and our delivery schedule the best in the industry.
Submersible Motor Engineering/Silvercrest is the world leader in submersible motor technology, enabling our customers to explore deeper underwater than ever before. High power, high voltage and high-pressure specifications are common place for many of our clients. Our submersible subsea and ROV motors are the best on the market today, offering a comprehensive choice of materials and design to underwater and ROV operators. Submersible Motor Engineering/Silvercrest specializes in all aspects of submersible electric motor operation, performance, and design. Due to industry demand for readily available quality parts, we also rewind, repair, redesign, and machine major components of other manufacturer's motors that require repair and re-manufacture.
CONTACT US TODAY TO DISCUSS YOUR SUBSEA ROV MOTOR REQUIREMENTS. Email: sales@SilvercrestSubmarines.com
We recently delivered ten 260kW, 3000VAC, double ended, 2 pole, stainless steel bodied motors to CTC Marine Projects Ltd, for use on their fleet of sub-sea trenchers. This was a bespoke order that was completed in just six weeks from receipt of order. Also five 400kw, 4 –Pole, 3300/3/60, SS316 Construction, Subsea Submersible Motors for SMD. Silvercrest/SME supply submersible motors, HPU's, and motor-pump sets worldwide. Our customers include SMD, Saab SeaEye, Ldtravocean, Fugro, CTC Marine Projects, Perry Slingsby and many others.
Subsea Trencher fitted with our SME 142-265KW stainless steel construction submersible motor and pump.
Silvercrest/SME have manufactured and supplied six 400kw ROV20-4 motors, 4-pole/3300vac/3 phase/60hz, stainless steel construction. Single ended for fitment with Sauer hydraulic pumps Series-90-L250. Rated for 3000m depth operations. Also three ROV204 submersible motors (300kw/4 pole/3300vac/3 phase/60hz) with stainless steel construction, and double ended for fitment with Sauer hydraulic pumps to SMD-Hydrovision. Together with 7.5kw motors for Rov cursor application. SME has also manufactured a total of seven (7) 6600V motors todate, for three different offshore contracts. Petronas Dulang and Angsi Platforms. Star Energy KG Platform.
A new Saab-SeaEye Jaguar ROV, fitted with our SME ROV12-2, 48kW 65HP, 2-pole, 3000/3/50, aluminium construction ROV submersible motor, and Rexroth hydraulic pump. Fitted with temperature sensing and water detectors. Epoxy coated for protection.
Two submersible double-ended motors mounted with hydraulic pumps, fitted to a submarine digger. SME ROV14-4, 75kW/100HP, 4–pole, 3000/3/60, Anodised Aluminium Subsea Motors with Interface to suit the Hydraulic Pumps. We manufacture and rebuild very large submersible motors for a range of other offshore and subsea companies. These include: Global Marine, CTC, Sonsub, Star Energy, Sulzer Wood, Sulzer, Fugro, Apache, BHP Billiton, Petronas, SMD, Exxon Mobile, Chevron, Perry Slingsby, Subsea7, Bayu Purnama, ISE Ltd, Saudi Aramco, Woodside, PXP.
260kW Silvercrest/SME Pump Motor under construction.
Silvercrest/SME will bespoke manufacture virtually any shape and size of submersible motor required for subsea operations. We will be very happy to discuss the details of your subsea motor / pump requirements in order to produce a detailed technical quote for you.
Silvercrest / SME design and build specialized subsea motors, and support packages for use on all types of Rovs and underwater vehicles in the offshore and subsea industry. These submersible motors are usually made to order and vary from 1kW to 1500kW, 400 to 4160 Volts. 50 or 60 Hz, 2-Pole to 8-Pole. There are two common methods of construction available: - Stainless steel construction, or Marine Grade aluminium that is Black anodised to resist corrosion. These motors are usually oil filled and pressure compensated. Common operating voltages are between 300 volts and 3300 volts - even for small 5kW motors. 6,000vac and 11,000vac motors also available by special request. Certain subsea motors can operate down to depths of 10,000 meters.
SME manufactures new Submersible, Subsea, and Rov motors. SME rewinds, services and repairs all brands of Subsea, Submersible and Rov motors. Including Hitachi, Pleuger, Grundfos, Mercury, Byron Jackson, Haywood Tyler, and Franklin. Silvercrest/SME is a leading manufacturer of high quality submersible motors and pumps, designed specifically for subsea operations Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, pumps and ancillary equipment for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems, for use in the offshore Oil and Gas and Telecommunications industries.
75HP Rov Subsea Motor.
We manufacture our own laminations, designed specifically to meet the individual requirements of each customer. We do not buy off the shelf standard rotor sets and fit them in a housing, as some other manufacturers will often do. As a result our motors are more efficient and generally slightly smaller, in both diameter and length, than our nearest competitors for any given power rating. Silvercrest offer a range of ‘standard’ motors for use in well-established underwater installations, such as the more popular classes of Rov and subsea ploughs.
SILVERCREST / SME offer: Repair and rewind of large high voltage (500kW. 6600V) submersible electric subsea motors. High Temperature Submersible subsea motors in 6-inch to 20-inch frames suitable for operation in ambient temperatures of 75 Degrees.C High Voltage water filled submersible subsea motors (3300V, 4160V and 6600V). Upgraded Temperature Monitoring units available with new improved user-friendly parameter setting. ROV and subsea submersible motors suitable for depths of 4000m. WD Series sump-pump motors. Subsea Electric Generators for Tidal Generation. Induction Generators or slow speed Permanent Magnet Synchronous Generators up to 500k.
Heat Exchanger Motors.
We now offer a complete range of water filled, watertight, submersible subsea motors with integral heat exchangers in 10-inch, 12-inch, 14-inch and 16-inch size for 2 pole and 4 pole speeds.
These subsea motors offer a significantly lower temperature rise when compared with standard submersible subsea motors. This is an advantage that can be utilized when customers want to operate in water with a high ambient temperature, or when there will be minimal cooling water flow available. Even with the standard applications the lower temperature rise will extend the life of the motor significantly. There is an accepted rule of thumb for electrical insulation that its life is shortened by one-half for every 10°C increase in operating temperature. The winding operating temperature for a normal water filled submersible motor is about 70 degrees.C, in 25 degree.C water. However an SME Heat Exchanger Motor will be running at about 45 degree.C. (This is 25 degrees cooler). This magnitude of difference in temperature rise will have a significant positive impact on motor life.
The basic design principle for these subsea motors is to circulate the internal water in the motor remove the heat from the "active" parts of the motor, and then pass it through a heat exchanger which brings the internal water back to somewhere close to the external ambient water temperature - before feeding it back through the "active" parts again to remove more heat. The heat exchanger increases the external surface area of the motor by 50% and the water circulation allows the heat to dissipate more evenly and quickly out of the subsea motor and into the external water. The small impeller inside the subsea motor that circulates the water has an insignificant impact on the motor efficiency in terms of additional load, while the subsea motor has an improved efficiency because the stator and rotor copper losses are reduced due to the lower operating temperature.
Motor Thermal Protection Unit
All SME Heat Exchanger Motors come with four (4) PT100 temperature sensors installed in the motor. One PT100 is attached to the thrust bearing assembly that will detect excessive thrust loads and overheating in the thrust bearing. One PT100 is installed in the end winding on the non-drive end of the motor. One is installed half way down the slot in the winding in the middle of the motor. One is installed in the end winding on the drive end of the motor.
SME can offer one temperature protection unit (SME4TM) to monitor all four PT100'S installed in the Heat Exchanger Motor.
Water Pump Motors. Our water pump motors are not vertically oriented, water filled, down hole pump motors, as has previously been the norm throughout the subsea industry. Silvercrest/SME motors are substantial oil filled submersible motors, designed to run in the horizontal axis with a large thrust bearing assembly to withstand water pump loads. We can offer specially designed turbine pumps to match our motors. Again these pumps are not the usual vertically oriented type, these are specifically designed with a twin bearing arrangement, for use in the horizontal axis. Thus dramatically extending operational life and improving pump reliability. Silvercrest recently delivered ten 260kW, 3000VAC, double ended, 2 pole, stainless steel bodied motors to CTC Marine Projects Ltd. The motors will be used by CTC on their subsea plough and trenching vehicles worldwide. This was a bespoke order that was completed in six weeks from receipt of order, ex-works from our manufacturing facility in Australia. The 260kW/ 3000V / 60Hz / 2 pole pump motors (designed specifically for use in the horizontal axis) were fitted with shafts at both ends, in order to mate with three tandem mounted hydraulic pumps on one end and a Hayward Tyler M6 single stage water pump-set on the opposite end. In this 260kW model, rather than using the pivot shoe arrangement, typical of vertically oriented pump-sets, heavy duty tapered roller bearings were fitted to the rotor to manage the water pump induced end-loads. Thus giving a calculated bearing life in excess of 11,000 hours, even when used in the horizontal axis. Depth rating on each motor is 10,000 meters, with oil filled compensation. Motor housings are 316 stainless steel, with Mylar coated windings (the ultimate in winding coating technology) being used in each motor at the request of CTC, giving an insulation rating of >16kV at a temperature of 140 degrees C.
Rov and Subsea Plough and Trencher Motors. Silvercrest offer an established range of Rov motors ranging from 5HP to 500HP. All of these motors are available in either SS316 or Hard Anodized Aluminium finish. We will also design and build submersible motors to suit your individual requirements and subsea project. Our motors are in use with most of the major operators worldwide such as Saipem, SMD Hydrovision, Sonsub, CTC Marine Projects, Impresub, Fugro, Thales, MTQ, LD Travocean and Canyon Offshore.
100HP Aluminium Bodied ROV HPU Motor.
75HP Plough Motor.
11.kW Submarine Thruster.
265KW Trencher Motor. 400Kw Motor/3000vac for Subsea Trencher.
Submersible ROV HPU and Compensation Units. Silvercrest/SME manufacture and supply a wide range of electric submersible motors, motor-pump sets, together with matched hydraulic pumps (HPU) or water pumps. We can supply ROV HPU submersible motors from 30kW to 250kW, trenching HPU submersible motors from 100kW to 450kW, trenching jetting pumps, plough HPU submersible motors, plough jetting motor pump sets, turbine and centrifugal water pumps, hydraulic pumps, Rexroth A7 and A10 series pumps, and Sauer 90 series & Kawasaki KV3 series pumps. We also offer a range of subsea components for manned submersibles, ROVs, submarines, subsea trenchers and subsea ploughs. Also oil compensation units (Compensators). We supply AC thrusters as direct replacements to existing DC thrusters from 1kW to 50kW in size.
Oil Compensator Units. Silvercrest/SME supply oil compensator units for subsea vehicles, to suit manned submersibles, ROVs, submarines, subsea trenchers and subsea ploughs, and subsea equipment. We can offer a range of oil compensation unit sizes, including a 2.7L Compensator. 7 x 1/4" NPT (BSPT). SA-HC-0745-MAS.
This is a rolling diaphragm, positive pressure compensator (2700cc capacity), manufactured in corrosion resistant plastic suitable for ROV and tooling applications. These units are particularly suitable for compensating thrusters, compensating oil filled junction boxes, compensating valve packs, and other subsea applications
Motor-pump sets (depth rated to 3000m) for subsea trenching operations. Silvercrest/SME has recently manufactured and supplied two 265kw motor-pump sets for SMD-Hydrovision (England). The package comprised 265kw subsea motors, 2-pole, 3000v, 3ph, 60hz. Together with Jetting Pumps (wet end only, operating at 2-pole, 60 hertz). The motors were a stainless steel construction, and the pumps Zinc Free Bronze. These motor-pump sets will be installed onto one of the world’s largest subsea trenching vehicles. In addition, Silvercrest /SME has manufactured and delivered in just eight weeks from order, two water turbine pumps to CTC Marine Projects based in Teeside (England). The pumps will be used by CTC, in conjunction with Silvercrest/SME submersible 260Kw motors, on their subsea plough and trenching vehicles worldwide.
The two Silvercrest SH-M6R submersible pumps with a 231mm OD impeller and a nominal operating speed of 3600rpm will be used as an alternative to the Hayward Tyler model M6-1 stage CI/BR/SS submersible pump. The Silvercrest pump although matching the performance of the Hayward Tyler unit, is specifically designed for horizontal operation providing a greatly increased reliability for use in horizontal and downward angled operation.
Examples of Submersible motors we have manufactured.
SME 10-inch motor, 110kW 2P 400V 50Hz Super Duplex Construction for Service Water Lift Pumps.
SME 36-inch, 550kW -540HP, 4 Pole, 10000/3/50, Super Duplex Construction Submersible Motor.
SME 12-inch 150kW 200HP 4 Pole 480/3/60 Super Duplex Construction Submersible Motor c/w 60M of Submersible Cable.
SME 36-inch 2200kW 6-Pole 6600/3/60Hz Super Duplex construction. Submersible Motor.
Submersible motors with 60hz frequency, 1180rpm speed, 6,6KV voltage, and 2000kW power rating. Complete with 50m power cable, and PT100 with 50m instrument cable. To be used as fire water pump drive units.
SME 36-inch, 2200kW, 6 Pole, 6600/3/60Hz, submersible motor. Super Duplex Construction. SME 36-inch, 2200kW, 6 Pole, 6600/3/60Hz submersible motors.
SME 36-inch, 1800kW, 4 Pole, 6600/3/60Hz Submersible Motor.
SME 36- inch, 1000kW, 8 Pole, 6600/3/60Hz, Submersible Motor
SME ROV24-6, 400kW, 6 Pole, 4100/3/30-64, SS316 Construction Motor, Double Ended to have Water Pump on one end and a Hydraulic Pump at the other end. Max Axial Thrust 100kN, Max Radial Thrust 40kN.
SME SS132-4, 5.5kW, 4 Pole, 400/3/50, SS316 Construction Subsea Motor for Thruster application (reversing Propeller mounted directly on shaft).
SME ROV16-2, 400kW, 2-Pole, 3300/3/60, SS316 Construction Subsea Motor with integral Thrust Bearing and Interface to suit operation with Water Pump (vertical operation).
SME ROV12-2, 48kW 65HP, 2-pole 3000/3/50, Aluminium Construction ROV Motor fitted with Rexroth A10VO28DFR1/31R-PSC62N00 Hydraulic Pump. Motor to have Burton Connector for Power Leads. Fitted with Temperature Sensing and Water Detectors terminated on Subconn or similar connector. Power Conductor and Sensor Connector Blocks to be in the same position on the motor at opposite ends (or as requested). Epoxy coated for protection. 4kw submersible motor, to be connected to a worm drive and gearbox. Supply voltage 440V, three phase. SME ROV10-4, 4kw, 4 Pole, 440V 50/60Hz, SS316 Construction Subsea Motor
SME ROV14-4 75Kw/100HP, 4-pole, 3000/3/60, anodised aluminium subsea motor. Double-ended motor with Interface to suit Sauer and Kawasaki Hydraulic Pumps.
300 kW electric motor, 1800 rpm, 4160V 60Hz, electric supply, with adaptation flange to fit with Sauer Danfoss hydraulic pump 90 R 250 type, standard splined shaft.
SME ROV14-4, 66kW/88HP, 4-pole, 3000/3/60, Anodised Aluminium Subsea Motor, with Interface to suit Hydraulic Pump. SME ROV10-2, 75HP, 2 – Pole, 3000/3/60, SS316 construction. Subsea Motor fitted with SMP 9WH-4 Stage NAB Construction Pump to provide 4000L/M at 5Bar or 1060GPM at 170ft Head. Motor is oil filled and externally compensated. Tube connection for Power and Subconn or equivalent connector for Water Detector and Temperature Monitoring. SME ROV22-14, 120HP, 14-Pole, 3000/3/60, SS316 construction. Subsea Motor fitted with Jetech 15055-UW-H Subsea Quintuplex High Pressure Pump to provide 50L/M at 850Bar. Motor is oil filled and externally compensated. Tube connection for Power and Subconn or equivalent connector for Water Detector and Temperature Monitoring. SME ROV22-12, 120HP, 12-Pole, 3000/3/60, SS316 construction. Subsea Motor fitted with Jetech 100J3-UW-H Subsea Triplex High Pressure Pump to provide 46L/M at 850Bar. Motor is oil filled and externally compensated. Tube connection for Power and Subconn or equivalent connector for Water Detector and Temperature Monitoring.
Submersible motor for operations at 6000m.
We can offer our SME ROV22-12, 150kW, 12-Pole, 500rpm, 3300/3/50, SS316 Construction Subsea Motor. This motor will be manufactured to your exact requirements, and to interface with your submersible pump. SME ROV14-2, 186kW 250HP, 2-Pole, 3300/3/50, SS316 Construction Subsea Motor, with Flange and shaft to interface with Water Pump.
SME 400kw 4-Pole 1500rpm 3300/3/50 Submersible Motor.
SME 400kw 4 Pole 1500rpm 6600/3/50 Submersible Motor.
SME 145kw 8 Pole 1500rpm 3300/3/50 Submersible Motor.
SME 145kw 8 Pole 1500rpm 6600/3/50 Submersible Motor. SME ROV18-4, 300kW, 4 Pole, 1800rpm, 3000/3/60, SS316 Construction Subsea Motor to drive Hydraulic Pump.
SME ROV10-4, 40kW, 4 Pole, 1800rpm, 3000/3/60, SS316 Construction Subsea Motor to drive Hydraulic Pump. SME 10-inch, 37kW 50HP, 2 Pole, 380/3/50, Ni Al Br Construction Submersible Motor, with Modified Shaft and Flange to replace a Hayward Tyler MS 201-50 Motor and pump. |
In addition we recently manufactured and delivered in just six weeks from order, ten 260Kw submersible motors to CTC Marine Projects based in Teeside, England. The motors will be used by CTC on their subsea plough and trenching vehicles worldwide. 
Silvercrest / SME recently delivered in twelve weeks from placement of order, a complete new thruster system for PC1805 a dry-transfer submarine owned by the Dutch Company OTN.(SME 10kW / 160VAC (inverter controlled - 240VDC supplied) thruster.) 
