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IntroductionYD2030 is a LED display power analyzer, metering and displaying all the measurands in the circuit and computing four quadrant energy. This model can work in wide temperature range.MeasurementVoltage (Ph-Ph/Ph-N)Current(Ph-Ph/Ph-N)Active PowerReactive PowerApparent PowerFrequencyPower FactorComputationImport active energyExport active energyImport reactive energyExport reactive energyMeasuring Range30-600V6A45-65Hz AccuracyFrequency0.1%Voltage0.2%±0.1VCurrent0.2%±0.001APower0.5%±0.4WPower Factor0.5%±0.001Energy: 1.0%MonitorLED display,4 displays4 operation keysCommunicationRS-485 port,ModBus-RTU protocol; 32(128) meters are connected as a network.Analog Output (option)DC4-20mA output,programmable to any measurementSystem3P4W3P4W BAL3P3W3P3W BAL1P2W1P3WProgrammableMeasuring System 3P4W/3P3W etc.Transformation RatioPT; CTComms.Add.(1-247);Baud rate(1200-19200);Parity bit(N/E/O)RTC: Year; Month; Day; Hour; Minute; SecondEnergyResetDimensionPanel boar

Introduction:The DB810A is a digital DC servo driver developed with CPLD and high efficient MOSFET technologies. In position control, its easy for the end users to change stepping drivers to the DB810A without changing control systems, because its input command is PUL/DIR signal, which is compatible with that of stepping drivers. In low power motion control applications, performances of DC servo systems using the DB810A are better than those of digital AC servo systems in velocity, precision, noise, stability, or at least as good as those of digital AC servo systems. However, the cost of the DB810A stays at the price line of stepping driver, namely far lower than those of AC servo drivers.Features:         18-80VDC, 0-20A, 20-400W         PID feedback servo drive         Feedback resolution ×4 encoder line count         Lock range +/- 12

Features:Low cost and good high-speed torque Supply voltage up to +50VDCOutput current up to 4.2A Optically isolated input signalsPulse frequency up to 300 KHzAutomatic idle-current reduction3-state current control technology15 selectable resolutionsSuitable for 2-phase and 4-phas motorsDIP switch current setting with 8 different valuesCW/CCW mode available (optional)Over-voltage and short-circuit protectionSmall size (118x75.5x33mm)Applications:Suitable for a wide range of stepping motors from Nema size 17 to 34. It can be used in various kinds of machines, such as X-Y tables, labeling machines, laser cutters, engraving machines, pick-place devices, and so on. Particularly adapt to the applications desired with low vibration, high speed and high precision.

Automatic -compensation Filter installment (High voltage)GWK

Has the overtone slightly, the reliable high p area is small,exempts the maintenance and so on the remarkable meritThis series device has won the fully affirmationand high reputation from various customers such as steel, petroleum, chemical engineering, aluminum industry, mine, sewage disposal, electricity etc.

Automatic -compensation Filter installment (High voltage)GWK

Power Voltage: 110~240VPower Frequency: 50~60HzRated Power: 0.6VAMax.Ambient Temperature: 120oCSpark Gap: ≥4mmSpark Energy: ≥2mJSparking Frequency: 1-7HzBox Material: PA66Number of Outlets: 4Life: ≥1,000,000 SparksApproval: CE & VDE

Ratings: 250V~, 16(4)A;Max. Ambient Temperature: 125 oC Pairs of Single Pole of Changeover Contacts;Can Be Stacked Together;Wide Choice of Terminals;Pull-cord Version

Ratings: 250V~, 16(4)A;Max. Ambient Temperature: 125 oC Pairs of Single Pole of Changeover Contacts;Can Be Stacked Together;Wide Choice of Terminals;Pull-cord Version

Ratings: 6A 250V~/ 6A 150V~;Single Pole; Quick Connect; Snap in mounting or central fixing

Name: Electric cement mixers

  One piece tank construction with power coating finish and fitted with fully sealed magnetic pump. Fluid recirculated through replaceable filter element and directed onto workpiece throught flexible metal delivery nozzle.25 gallon capacity tank suitable for cleaning large engine components.Fusible link automatically snaps lid in the event of a fire. Parts basket for snaking small parts in solvent. Tank dimensions:929mm(L)X568mm(W)x402mm(H)  G.W/N.W. :  46/44KGSCARTON DIM.(1 PC/CTN ): 99.5X61X48CMQTY/20 : 80PCSQTY/40 : 168PCS

  CE-certified and UL-listed Can be moved easily from one job to another. Ideal for small garage,home and business. Heavy-duty construction,fusible link,steel lid. Removableshelf keeps parts out of solvent during inspection and drying.Easy to clear up. Pump out:0.5 gallon per minute Tank capacity:6 gallon.Solvent capacity:3.5 gallon Tank dimensions:436mm(L)X335mm(W)x222mm(H)G.W./N.W. :  8.5/7KGSCARTON DIM.(1 PC/CTN ):  47X35X25CMQTY/20 : 683PCSQTY/40:  1400PCS

Name: Electric cement mixers

Name: Power trowel

Name: Electric cement mixers

touch screen, simens components

fast filling cylinder. 50WL

1.Compressor assemblies include all the needed apparatus ( compressor, electric motor, cooling system, gas recycling system, priority system and acoustic enclosure) are packing whole. The assemblies can run all day without person.2.Non-balance section compressor technology which achieved national patent (patent number ZL98229860.9) can save more than 500m3/d (CNGdaily production is 1,0000m3 ) comparing with balance compressors in China.  3.The inhalation pressure can meet different conditions. When inhalation pressure is from 20mpa to 2.0mpa, no shift is needed. That means that this compressor can automatically operate and has strong capacity. PLC writable system controller according to need can control the scope of inhalation pressure.4.The process of compressor is advanced and mature. Auto prior control packing system can not only use drawer to charge directly but also realize low-pressure well withdrawing natural gas from high-pressure well to keep high-pressure force stable.5.

1.M type massive-output water-cooling CNG mother station compressor is 4-thread symmetry balance compressor. 4 cranks are put in cross shape. The inertia moment is in completely balance, which enable the compressor run well and not to vibrate.2. One thread has only one cylinder. The piston ring, packing and fragile spares can be maintenance easily.3. Non-balance section compressor technology which achieved national patent (patent number ZL98229860.9) and high-pressure packing seal technology which can save more than 10%power comparing with balance compressors in China are taken into use. If a mother station produces 100,000m3/day, using this technology can save 480,000kw-h(the input gas pressure is 1.0Mpa).4. The assembly is packing whole. The compressor is driven by elastic coupling of motor, convenient to transport and install.5. If needed, acoustic enclosure can be added to compressor to meet the need of running outside all day. Acoustic enclosure consists of space heater,flammable