Nanjing Turbines Generator Transformers Tg Auxiliaries Non Destructi Suppliers and Manufacturers

1) various kind of permanent manget generators/motor (speed from 30rpm 10000rpm) for wind turbine,hydro turbine system,chp generation,tidal turbine,engine turbine and so on. 2)various kinds of small hydro turbine according water head and flow. 3)horizontal and vertical wind turbine (1 200kw) and inveter,transformers 4)high speed and low speed electrical motors and brushless dc motor..

We have the capacity to produce wind turbine generators of 200 watts, 300w, 400w, 500w, 1000w, 2000w, 3000w, 5000w, 10kw, 20kw, 30kw. Currently, we have passed iso9001 international management system, and CE certificate. 7.5kg 690*370*225mm.

Wind turbine generator, controller, inverter, battery, frequency inverter.

USI-230A silcone antiformimg agent is mainly comprised of modified polysiloxane mixed with food-grade emulsifier, disperse agent and self-developed auxiliary, using the state-of-the-art compounding technique. Its characteristics:quick defoaming, long foam inhibition, high effiency, low dosage, nontoxicity, non-corrosion, biological inertia without ill side effect. Morever, this agent easily disperses in water with good dissolving in liquid products, almost not resulting in demulsification and oil spill, and maybe applied to eliminate foam generated during dying&printing. Under proper usage conditions and suitable temperature, it wont make dyed fabrics stained with silicone oil, etc.; Its also applicable at 80 degrees. 25 kg, 200kg plastic or iron drum

such as stripcasting, hddrtechnology; 9. Applications: sensors, motors, rotors, wind turbine, wind generators, speakers, loudspeakers, magnetic hooks, magnetic holder, filters, etc. When inquiring, following information offered will be much appreciated . 1.Type of magnet (material & grade) 2. Quantity (annual and per shipment) 3. Shape and dimensions (drawing if necessary) 4. Direction of magnetization 5. Magnetized or not 6. Details of surface treatment 7. Application if possible 8. Other information or requirements Carton or according to your requirement

3240 epoxy glass fabric laminated sheet with high mechanical and electrical properties, can be applied to generators, motors and electrcial appliances as insulating structural parts and used in transformer oil and humid enviroment. Features and Applications: -Class F insulation. (155 degree) -High mechanical property, water and heat resistance, stable dielectric property after soaking. -As insulating structual parts for electric machine and apparatus equipments. Packed in pallets, 1000kg in a lot.

Silicone fiberglass sleeving is an insulating sleeving produced with a thermal process. It is woven as sleeving by non-alkali fiberglass and coated with a silicone resin/rubber. The thermal treatment and the special resins/rubbers used for this item give the material a very good softness and elasticity, excellent high temperature resistance and good dielectric strength. And widely used in wiring insulation and mechanical protection for electric motors, transformers and electrical instruments. 1. Type: wsg-1, wsg-2, wsg-3, wsg-4, wsg-5 2. Operating temperature: -10~+260¡ãc 3. Rated voltage: 1500v~ 10000v 4. Flame retardant: ul vw-1 5. Roll package: 100, 200 meters per roll 6. Packing: roll or cutting length as per customer's need 7. Standard color: white, other colors are available at requesting 8 cetificate: ul1441 9. Application: Motor and transformers Household electrical appliances Tv set and electric instrument Heating equipment The special lamps and lanterns Packing: roll or cutting length as per customer's need

Table size:3100mm*1600mm Structure: Flying-arm X-axis:3000mm Y-axis:1500mm Z-axis:200mm Traverse speed:0~12000mm/min Control Accuracy:¡À0.01mm Cutting Accuracy:¡À0.1mm Width of Incision:0.4~1.2mm Common configuration:Imported high precision zero clearance Ball Screw and Line rail. Imported digital AC servo system. Full-automatic lubrication system. Dedicated Ceramics cutting fixture. Full Set of UHP Generator from Germany Pressure Range 0~420MPa Motor Power 50HP/37KW Power Supply 50Hz/380V Pressurization Rate 20:1 KMT Cutting Head Integrated cutting assembly Abrasive waterjet nozzle is ROCTEC Orifice:0.17mm/0.25mm/0.26/0.28 UHP Pump system Pneumatic UHP switch. "SUNNY" UHP Intensifier and control valve imported from U.S UHP assembly from "JET" in U.S CNC -aided automatic control. Pressure blocking and adjustable low pressure drilling function. Tube between Generator and Machine is NOVA brand from Switzerland Sand Control system Adjustable sand control Valve Manual sand supply (Automatic supply system is available ) Capacity of sand tank:10Km Water switch system Adjustable UHP switch assembly Water Cutting Dedicated Software GT (developed with Nanjing University) or WH(Shanghai) software, can read Drawing very fast. CAD/CAM system Model:GT-card. Compatible format:DXF, DWG, IGS, PRT, ASC, STL, NFL, STEP, etc. Can automatically transform, adjust and add special parameters according to the Material, thickness and processing demand.Enlarge the database automatically. Read CAD drawing and scan scan BWP format drawing, and programming Automatically Can generate the cutting path and optimize cutting order. Can automatically add engage and retract line. Automatically compensate the radius of the cutting head. Breakpoint memory. Can simulate the cutting process on the computer. Can generate the NC program. DNC Transport and cutting simultaneously. Can complete any complicate plane cutting Table size:3100mm*1600mm. Totoal Weight:about 3tons.

Table size: 3100mm*1600mm Structure: Bridge X-axis: 3000mm Y-axis: 1500mm Z-axis:200mm Traverse speed: 0~12000mm/min Control Accuracy: ¡À 0.01mm Cutting Accuracy: ¡À 0.1mm Width of Incision: 0.4~1.2mm Common configuration: Imported high precision zero clearance Ball Screw and Line rail. Imported digital AC servo system. Full-automatic lubrication system. Dedicated Ceramics cutting fixture. Full Set of UHP Generator from Germany Pressure Range 0~420MPa Motor Power 50HP/37KW Power Supply 50Hz/380V Pressurization Rate 20: 1 KMT Cutting Head Integrated cutting assembly Abrasive waterjet nozzle is ROCTEC brand from USA Orifice: 0.17mm/0.25mm/0.26/0.28 UHP Pump system Pneumatic UHP switch. "SUNNY" UHP Intensifier and control valve imported from U. S UHP assembly from "JET" in U. S CNC -aided automatic control. Pressure blocking and adjustable low pressure drilling function. Tube between Generator and Machine is NOVA brand from Switzerland Sand Control system Adjustable sand control Valve Manual sand supply (Automatic supply system is available ) Capacity of sand tank: 10Km Water switch system Adjustable UHP switch assembly Water Cutting Dedicated Software GT (developed with Nanjing University) or WH(Shanghai) software, can read Drawing very fast. CAD/CAM system Model: GT-card. Compatible format: DXF, DWG, IGS, PRT, ASC, STL, NFL, STEP, etc. Can automatically transform, adjust and add special parameters according to the Material, thickness and processing demand. Enlarge the database automatically. Read CAD drawing and scan scan BWP format drawing, and programming Automatically Can generate the cutting path and optimize cutting order. Can automatically add engage and retract line. Automatically compensate the radius of the cutting head. Breakpoint memory. Can simulate the cutting process on the computer. Can generate the NC program. DNC Transport and cutting simultaneously. Can complete any complicate plane cutting Table size: 3100mm*1600mm Total Weight:about 3tons.

Ecg: Ecg lead: i, ii, iii, a vr, a vl, a vf, v1-v6 S-t segment analysis: íºc2.0-2.0mv Protection: withstand 4000v av/50hz voltage in isolation and work against electrosurgical inference and defibrillation. Ecg lead/cable: general lead/cable for adult, pediatric and neonatal patients Defibrillator: 7 inch tft display Sync and non-synchronizer: outlife defibrillator Sine wave: monophonic technology Energy: 0, 20, 50, 100, 160, 250, 300, 360 joule Charging time: at 360j less than 10sec Paddle options: reusable external adult and infant paddles Power: Main (ac) and with built-in battery 56*56*25cm, 15kg

OR-M2000G adopts electric operation, sweeping and suction together, no secondary dust, no noise, no exhaust emission, and environmental protection. The design is beautiful and generous. It is suitable for cleaning parks, streets, stations, wharves, municipal roads, property communities, warehouses, factory workshops, schools, stadiums, large venues, airports and other areas. The sweeping efficiency is higher than the industry standard. The cleaning efficiency is 10-15 times than traditional manual cleaning efficiency. One sweeping machine can replace 10-15 cleaners. Characteristics : · The large size aluminum alloy wheels and vacuum inflatable tire ensure the comfort of driving; three wheel hydraulic brake and mechanical handbrake ensures the safety of driving. · The first use of high-speed specific drive, climbing capacity of 15°, driving speed of 15km/h, making remote operation possible. · Equipped with full closed double open door cab, wiper, mp3 radio, metal fan, high power glass fogging fan, large skylight, multi-angle adjustable seat, armrest box control is more simple, highly equipped models have human-machine interface. · The front baffle of main brush is raised vertically 85mm, the beverage cans can be cleaned easily, and patented big roller brush relay throwing technology, non-destructive garbage lifting, more efficient and energy saving. · Full-floating main brush, can automatically adjust its direction according to the road situation when sweeping, all-round fitting to the ground. Full hydraulic control, 3 seconds all linkage upgrade, release the main brush and side brush, high dumping to standard garbage bin, more suitable for sanitation work. · Equipped with maintenance-free high-capacity battery packs and smart chargers. Imported brand controllers, rare earth motors and proprietary circuit boards to ensure the stability of operation. · The cylinder filter can be replaced quickly, the main brush and side brush can be replaced in a few minutes to make maintenance easier.

OR-M2000 adopts electric operation, sweeping and suction together, no secondary dust, no noise, no exhaust emission, and environmental protection. The design is beautiful and generous. It is suitable for cleaning parks, streets, stations, wharves, municipal roads, property communities, warehouses, factory workshops, schools, stadiums, large venues, airports and other areas. The sweeping efficiency is higher than the industry standard. The cleaning efficiency is 8-10 times than traditional manual cleaning efficiency. One sweeping machine can replace 8-12 cleaners. Characteristics : · The rear wheel large size aluminum alloy wheel hub and vacuum inflatable tire ensure the driving comfort; the front wheel large solid tire design is lighter. Three-wheel disc brake and the mechanical hand brake are used to ensure the driving safety. · The first supplier who takes use of automatic electronic shift drive, low-grade climbing can reach 15°, high speed up to 20km/h, making long-distance operation possible. · Equipped with full closed double open door cab, more open field of vision, double doors with 180mm angle openers, full metal fans and large skylights, so that the cab temperature is not too high in summer. Equipped with wiper, multi-angle adjustable seat, armrest box control is more simple, front double lighting headlights, suitable for insufficient light operation. Equipped with rear view images to make driving and dumping easier (optional). · The sweeping width of four side brushes can reach 2M; front side brush has anti-collision rotation function. Patented big roller brush relay throwing technology, non-destructive garbage lifting, more efficient energy saving and lower failure rate. · Full-floating main brush, can automatically adjust its direction according to the road situation when sweeping, all-round fitting to the ground. The main brush and side brush of lifting is controlled manually; reducing the failure caused by electric lifting and convenient maintenance, low maintenance cost. The main brush front baffle vertical lifting height up to 80mm can effectively clean larger leaves and stones. 200L rubbish bin can meet the general road requirement. The 70L water tank is equipped with a high-pressure water pump and a stainless steel atomizing fan nozzle to control dust. · Equipped with maintenance-free high-capacity battery packs (China Famous Brand battery of 150AH) (200AH lead-acid and lithium-electric system options) and smart chargers. Imported brand controllers, rare earth motors and proprietary circuit boards to ensure the stability and reliability of operation. · Large-area barrel filter; effectively filter the dust when the main brush working. Side brush easy-to-replace device ensures a few minutes to replace.

OR-M2000 adopts electric operation, sweeping and suction together, no secondary dust, no noise, no exhaust emission, and environmental protection. The design is beautiful and generous. It is suitable for cleaning parks, streets, stations, wharves, municipal roads, property communities, warehouses, factory workshops, schools, stadiums, large venues, airports and other areas. The sweeping efficiency is higher than the industry standard. The cleaning efficiency is 8-10 times than traditional manual cleaning efficiency. One sweeping machine can replace 8-12 cleaners. Characteristics : · The rear wheel large size aluminum alloy wheel hub and vacuum inflatable tire ensure the driving comfort; the front wheel large solid tire design is lighter. Three-wheel disc brake and the mechanical hand brake are used to ensure the driving safety. · The first supplier who takes use of automatic electronic shift drive, low-grade climbing can reach 15°, high speed up to 20km/h, making long-distance operation possible. · Equipped with full closed double open door cab, more open field of vision, double doors with 180mm angle openers, full metal fans and large skylights, so that the cab temperature is not too high in summer. Equipped with wiper, multi-angle adjustable seat, armrest box control is more simple, front double lighting headlights, suitable for insufficient light operation. Equipped with rear view images to make driving and dumping easier (optional). · The sweeping width of four side brushes can reach 2M; front side brush has anti-collision rotation function. Patented big roller brush relay throwing technology, non-destructive garbage lifting, more efficient energy saving and lower failure rate. · Full-floating main brush, can automatically adjust its direction according to the road situation when sweeping, all-round fitting to the ground. The main brush and side brush of lifting is controlled manually; reducing the failure caused by electric lifting and convenient maintenance, low maintenance cost. The main brush front baffle vertical lifting height up to 80mm can effectively clean larger leaves and stones. 200L rubbish bin can meet the general road requirement. The 70L water tank is equipped with a high-pressure water pump and a stainless steel atomizing fan nozzle to control dust. · Equipped with maintenance-free high-capacity battery packs (China Famous Brand battery of 150AH) (200AH lead-acid and lithium-electric system options) and smart chargers. Imported brand controllers, rare earth motors and proprietary circuit boards to ensure the stability and reliability of operation. · Large-area barrel filter; effectively filter the dust when the main brush working. Side brush easy-to-replace device ensures a few minutes to replace.

OR-M2000 adopts electric operation, sweeping and suction together, no secondary dust, no noise, no exhaust emission, and environmental protection. The design is beautiful and generous. It is suitable for cleaning parks, streets, stations, wharves, municipal roads, property communities, warehouses, factory workshops, schools, stadiums, large venues, airports and other areas. The sweeping efficiency is higher than the industry standard. The cleaning efficiency is 8-10 times than traditional manual cleaning efficiency. One sweeping machine can replace 8-12 cleaners. Characteristics : · The rear wheel large size aluminum alloy wheel hub and vacuum inflatable tire ensure the driving comfort; the front wheel large solid tire design is lighter. Three-wheel disc brake and the mechanical hand brake are used to ensure the driving safety. · The first supplier who takes use of automatic electronic shift drive, low-grade climbing can reach 15°, high speed up to 20km/h, making long-distance operation possible. · Equipped with full closed double open door cab, more open field of vision, double doors with 180mm angle openers, full metal fans and large skylights, so that the cab temperature is not too high in summer. Equipped with wiper, multi-angle adjustable seat, armrest box control is more simple, front double lighting headlights, suitable for insufficient light operation. Equipped with rear view images to make driving and dumping easier (optional). · The sweeping width of four side brushes can reach 2M; front side brush has anti-collision rotation function. Patented big roller brush relay throwing technology, non-destructive garbage lifting, more efficient energy saving and lower failure rate. · Full-floating main brush, can automatically adjust its direction according to the road situation when sweeping, all-round fitting to the ground. The main brush and side brush of lifting is controlled manually; reducing the failure caused by electric lifting and convenient maintenance, low maintenance cost. The main brush front baffle vertical lifting height up to 80mm can effectively clean larger leaves and stones. 200L rubbish bin can meet the general road requirement. The 70L water tank is equipped with a high-pressure water pump and a stainless steel atomizing fan nozzle to control dust. · Equipped with maintenance-free high-capacity battery packs (China Famous Brand battery of 150AH) (200AH lead-acid and lithium-electric system options) and smart chargers. Imported brand controllers, rare earth motors and proprietary circuit boards to ensure the stability and reliability of operation. · Large-area barrel filter; effectively filter the dust when the main brush working. Side brush easy-to-replace device ensures a few minutes to replace.

OR-M2000 adopts electric operation, sweeping and suction together, no secondary dust, no noise, no exhaust emission, and environmental protection. The design is beautiful and generous. It is suitable for cleaning parks, streets, stations, wharves, municipal roads, property communities, warehouses, factory workshops, schools, stadiums, large venues, airports and other areas. The sweeping efficiency is higher than the industry standard. The cleaning efficiency is 8-10 times than traditional manual cleaning efficiency. One sweeping machine can replace 8-12 cleaners. Characteristics : · The rear wheel large size aluminum alloy wheel hub and vacuum inflatable tire ensure the driving comfort; the front wheel large solid tire design is lighter. Three-wheel disc brake and the mechanical hand brake are used to ensure the driving safety. · The first supplier who takes use of automatic electronic shift drive, low-grade climbing can reach 15°, high speed up to 20km/h, making long-distance operation possible. · Equipped with full closed double open door cab, more open field of vision, double doors with 180mm angle openers, full metal fans and large skylights, so that the cab temperature is not too high in summer. Equipped with wiper, multi-angle adjustable seat, armrest box control is more simple, front double lighting headlights, suitable for insufficient light operation. Equipped with rear view images to make driving and dumping easier (optional). · The sweeping width of four side brushes can reach 2M; front side brush has anti-collision rotation function. Patented big roller brush relay throwing technology, non-destructive garbage lifting, more efficient energy saving and lower failure rate. · Full-floating main brush, can automatically adjust its direction according to the road situation when sweeping, all-round fitting to the ground. The main brush and side brush of lifting is controlled manually; reducing the failure caused by electric lifting and convenient maintenance, low maintenance cost. The main brush front baffle vertical lifting height up to 80mm can effectively clean larger leaves and stones. 200L rubbish bin can meet the general road requirement. The 70L water tank is equipped with a high-pressure water pump and a stainless steel atomizing fan nozzle to control dust. · Equipped with maintenance-free high-capacity battery packs (China Famous Brand battery of 150AH) (200AH lead-acid and lithium-electric system options) and smart chargers. Imported brand controllers, rare earth motors and proprietary circuit boards to ensure the stability and reliability of operation. · Large-area barrel filter; effectively filter the dust when the main brush working. Side brush easy-to-replace device ensures a few minutes to replace. Oversized and multiple inspection windows make maintenance easier.

Detailed Product Description xLogic is latest Micro PLC, replacing mini plc,multiple components, easy installation, minimum wiring, easy programming! Description ELC-12 range is advanced level model, incorporating a good mix of digital & analogue IO , Integrated High Speed inputs and PWM output, counters, timers,real time clock and time switch functions, removable keypad LCD, 3 built-in communication ports including expansion one. Available in 120V/240VAC or 12V/24VDC versions ; Easy to configure with drag-and-drop function blocks or ladder using FREE xLogicSoft software. ELC-12 range offers 4-line detachable LCD display and keypad for manual programming without PC, program modification or display and control whilst program is running. An expansion port allows the connection of up to 8 expansion modules, extending the I/O channel count and adding Ethernet capabilities. Now it is also possible to use the analog output module to solve simple closed-loop control tasks. Heating and cooling systems can be designed with the RTD PT100 module using special functions for PI control, ramp response and analog multiplexer. xLogic ELC-12 Series(standard type) highlights at a glance: Removable LCD with keypad for manual programming, operator interface or maintenance troubleshooting ( Learn more) v Customizable Start-up page / screen v 4-line, 10-character configurable backlighting display v Manual programming via Keypad panel without PC capability (optional) v Various blocks¡¯ different parameters can be displayed on one screen / page simultaneously v Randomly specify a specific page to display the IO status of the ELC 12 or expansion module attached v Ethernet capability available . v Alarm page can record and display the exact alarm occurrence time v Programmable up to 64 (user defined) screens / pages v Optional metal mounting plate offers mounting to the rear of the control panel door. v Modbus RTU &ASCII protocol supported. v Unit Size allows for DIN-rail mounting together with commonly used breakers in building automation applications. v Retentive memory capability standard feature on the ELC-12 model. v Powerful communication capability(1 RS232 port and 2 RS485 ports built-in) v It's optional for xLogic to act as slave or master in Modbus RTU communication network. v Extra large program capacity ( 512 function blocks available) v HMI(LCD) separate installation available, e.g. xLogic can be installed inside electric cabinet and HMI/LCD mounted in it¡¯s front panel for easier observation and convenient operation GENERAL SPECIFICATIONS Timers : 512 Counters : 512 Function Blocks : 512 Operation temp.: 0¡ãC-55¡ãC Storage :-40¡ãC-70¡ãC Protection : IP20(Non-waterproof) RTC accuracy : MAX ¡À5S/day RTC time intervals : 256 RTC Backup at 25 ¡ãC : 100 hours, Li-ion battery (optional) Power-off retentivity : Yes Dimensions : 72*90*68 (Unit, mm) Certificate : CE Installation : DIN rail or screw for installation Expansion capacity : yes Password protection : password protection Communication interface : 1 RS232 port ( TTL interface) & 2 RS485 ports Communication protocol : Modbus RTU/ASCII It's optional for xLogic to be either slave or master in Modbus network. Area of application Contributed to xLogics versatile features, The xLogic can be used in numerous applications: Machine controls Motor, pump and valve controls Air compressors Exhaust and filtering systems Water-treatment plants Woodworking machinery Etching and purification plants Transport facilities Conveyor systems Hoisting platforms Elevators Silo facilities Livestock feed delivery Operational monitoring systems Access control Vehicle control monitoring Alarm systems Level limit monitoring Traffic light control systems Baggage handling Residential and commercial building services Interior and exterior lighting control Door/gate control Shutter, sun blind and awning control Irrigation system control Unique applications Wind power systems Harsh environments Display panels and traffic control signs Benefit the ideal solution for simple automation tasks Minimizes costs - replaces many conventional switching control devices, reduces time requirements ¨C simplified wiring and panel layout, Offers flexibility in resellers stock selection by offering removable keypad display Saves much space in the switching cabinet - modules based on a 4 width industry standard dimension replace a wide variety of relays, timer switches and contactor relays Furnishes the widest range of capabilities and successful implementation of extensive applications with the option of selecting from 44 integrated functions and linking up to 512 of them in the user program. Operator control and monitoring are made very user-friendly by means of a 4 line, 10 characters per line, backlit display. Additional external text display extends the possibilities for operator control and monitoring Password protection ¨C Protects your engineering IP . 44 integrated, pre-tested functions ¨C No additional devices, such as elapsed time counter, are required Linking of 512 functions is possible ¨C Extensive applications can be implemented without restrictions Eight digital inputs (incl. four AIs at 12 / 24 V DC) and four digital outputs on board Display of message texts, action items and current values as well as direct modification of the values on the display Retentive data memory ¨C Protects current values against loss in the event of a power failure Together with the xLogicSoft software, configuring of the xLogic is simply intuitive: program generation, project simulation and documentation are accomplished using drag and drop functionality, allowing maximum ease of operation.

Hot sale Chinese Fluoroscopy C-arm PLX112 Usage of Medical C Arm X Ray System For Sale PLX112 High Frequency Mobile X ray C-arm is a high frequency mobile surgical X-ray device, and mainly used in orthopaedics for joint of limbs, reset and joint connection with nail, and used in surgery for taking off the foreign matters from the inside of body, heart vessel duct, plant heart, intervene clinic and photography of part of the body. Features of High Quality Portable Fluoroscopy C-arm PLX112 1.High frequency high voltage generator assembly. 2.Automatically track fluoroscopy to make the image brightness and clearness optimum; 3.Automatically store the last image of fluoroscopy to advantage diagnosis; 4.Extendable electric auxiliary arm, not only save space but also improve the stability of the device. 5.Mechanical movement, image-manipulation, parameter- modulation, pattern-selection can be operated remotely; 6.With a compact appearance, easy to operate,Well-organized structure, and ease of maintenance. z

High Quality Portable C-arm fluoroscopy equipment PLX112 Usage of Medical C Arm X Ray System For Sale PLX112 High Frequency Mobile X ray C-arm is a high frequency mobile surgical X-ray device, and mainly used in orthopaedics for joint of limbs, reset and joint connection with nail, and used in surgery for taking off the foreign matters from the inside of body, heart vessel duct, plant heart, intervene clinic and photography of part of the body. Features of High Quality Portable Fluoroscopy C-arm PLX112 1.High frequency high voltage generator assembly. 2.Automatically track fluoroscopy to make the image brightness and clearness optimum; 3.Automatically store the last image of fluoroscopy to advantage diagnosis; 4.Extendable electric auxiliary arm, not only save space but also improve the stability of the device. 5.Mechanical movement, image-manipulation, parameter- modulation, pattern-selection can be operated remotely; 6.With a compact appearance, easy to operate,Well-organized structure, and ease of maintenance. z