{"product_id":"four-cellar-door-linear-actuators-synchronous-control-kit-total-max-thrust-22000n","title":"Four Cellar Door Linear Actuators Synchronous Control Kit Total Max Thrust 22000N (Model 0043052-7)","description":"\u003cp\u003e\u003cspan style=\"margin: 0px; padding: 0px; font-family: arial, helvetica, sans-serif; font-size: medium;\"\u003e \u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/-ahK78qPXcY?si=m1qo29k8imhNekm5\" height=\"315\" width=\"560\"\u003e\n\t\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Include:\u003c\/b\u003e\u003cbr\u003e4 x Electric Linear Actuator B7 With Hall Effect Sensor\u003cbr\u003e1 x Synchronous Controller (One-Control-Four, For 4 Linear Actuators B7)\u003cbr\u003e1 x Touch Control Handle\u003cbr\u003e1 x Remote Control (CF-2)\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote: All linear actuators must be connected to the synchronous controller for the system to function properly.\u003cbr\u003eThe remote control of the synchronous controller has two control modes, interlocking mode and momentary mode, please select a control mode you need when ordering. And the synchronous controller has two selectable external control functions, manual switch function or limit switch function, please select an external control function you need when ordering.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe information for electric linear actuator:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe stroke range of linear actuators is \u003cb\u003e\u003cspan style=\"color: #0000ff;\"\u003e0.4 ~ 80 inches or 10 ~ 2000 mm. We can also customize any stroke length from 10mm to 2000mm, such as 770mm, 1250mm, 1850mm and so on.\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003eIf you want to view detailed information of linear actuators with different strokes, such as detailed drawings and dimensional drawings, please click the following link to view: \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/collections\/max-thrust-6000n-b7-electric-linear-actuator-for-cellar-door\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eLinear Actuator B7\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIntroduction:\u003c\/b\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eThis is a linear actuator specially designed for cellar door scenarios. It only has a push function and no pull force design.\u003c\/span\u003e\u003cbr\u003eWhen the linear actuator is in the fully retracted state, if there is a power outage, the linear actuator can be manually pulled out or retracted to open or close the cellar door manually.\u003cbr\u003eWhen the linear actuator is in the extended state, if there is a power outage, the linear actuator will remain stationary. The linear actuator can be manually pulled out to open the cellar door, but the linear actuator cannot be manually retracted to close the cellar door. You need to wait for the power to be restored before you can operate the linear actuator to retract to close the cellar door.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeature:\u003c\/b\u003e\u003cbr\u003eHigh-quality products and high-quality services\u003cbr\u003eHigh strength wear-resistant gear\u003cbr\u003eAluminum alloy telescopic tube and outer tube, good corrosion resistant\u003cbr\u003eHeavy duty design, high-power DC motor\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eStrong thrust, up to 5500N \/ 550 kg \/ 1200 lbs at 5mm\/s (without pull)\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003eFour speed options, 5±1mm\/s, 7±1.5mm\/s, 9±2mm\/s, 14±3mm\/s\u003cbr\u003eMultiple stroke options, from 10 mm to 2000 mm\u003cbr\u003eWe can customize any stroke length from 10mm to 2000mm, such as 270mm, 380mm, 460mm and so on.\u003cbr\u003eAdvanced waterproof and dustproof technology\u003cbr\u003eLow power consumption and low noise\u003cbr\u003eBuilt-in two limit switches, linear actuator will automatically stop when stroke rod reaches the limit position.\u003cspan style=\"color: #ff0000;\"\u003e\u003cbr\u003eBuilt-in Hall sensor, so you can use the synchronous controller to operate 2, 3 or 4 linear actuators fully synchronously.\u003c\/span\u003e\u003cbr\u003eWith auto-locking capability to hold load position after stopping, and no power supply is required.\u003cbr\u003eMaintenance-free\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003eOptional working voltage: \u003cspan style=\"color: #ff0000;\"\u003eDC 12V or DC 24V, and 24V is the most commonly used working voltage.\u003c\/span\u003e\u003cbr\u003eStroke range: 10 ~ 20 inches or 250 ~ 500 mm\u003cbr\u003eOptional speed: 5±1mm\/s, 7±1.5mm\/s, 9±2mm\/s, 14±3mm\/s\u003cbr\u003eThe above is the speed at no load, and the actual working speed will gradually slow down as the load increases.\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eMax Load capacity: 5500N \/ 550 kg \/ 1200 lbs at 5mm\/s\u003c\/span\u003e\u003cbr\u003eLinear actuator can get maximum load capacity when it operates in the vertical direction, and the pulling force is less than pushing force.\u003cbr\u003eNo-load current: 1~2A at 12V or 0.5~1A at 24V\u003cbr\u003eFull load current: 6~12A at 12V or 3~6A at 24V\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003ePlease use a 12V\/50A or 24V\/25A power supply to power four linear actuators.\u003c\/span\u003e\u003cbr\u003eShaft diameter: 24mm\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe diameter of the mounting holes for the front and rear connectors:10mm [0.393in]\u003c\/span\u003e\u003cbr\u003eHousing Material: Aluminum Alloy\u003cbr\u003eStroke Rod Material: Aluminum Alloy\u003cbr\u003eGear Material: Polymer Plastic\u003cbr\u003eMotor Type: Brushed DC Motor\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe front connector style can be customized:\u003c\/span\u003e the default is an open hole connector, which can be customized with slotted connector, internal thread connector, etc. And you can provide drawings for customization.\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe orientation of the front and rear connectors is default; we can rotate them 90 degrees during the production according to the customer's needs.\u003c\/span\u003e\u003cbr\u003eDuty Cycle: 10%, max 3mins continuous use\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eService life: approx. 25,000 cycles\u003c\/span\u003e\u003cbr\u003ePower cable: Six-pin Plug\u003cbr\u003eCable length of the linear actuator: 2000±10%mm [80 in], the length can also be customized according to your specific needs.\u003cbr\u003eCertifications: CE\u003cbr\u003eEnvironment temperature: -26℃ to 85℃\u003cbr\u003eOperating Noise: about 42dB~46dB (Linear actuators with different parameters will have different noise levels.)\u003cbr\u003eIP rating: IP54, not suitable for outdoor use.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDifferent speeds and corresponding maximum thrust:\u003c\/b\u003e\u003cbr\u003e　\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"1\" width=\"800\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e No-load Speed\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e Full load Speed\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e Maximum Thrust\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e Self-locking Force\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e5mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e3.5mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e5500N \/ 550 kg \/ 1200 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e6000N \/ 600 kg \/ 1300 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e7mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e5mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e3500N \/ 350 kg \/ 770 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e3500N \/ 350 kg \/ 770 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e9mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e7mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e3000N \/ 300 kg \/ 660 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e3000N \/ 300 kg \/ 660 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e14mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e10mm\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e2000N \/ 200 kg \/ 450 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan style=\"font-size: small;\"\u003e1000N \/ 100 kg \/ 200 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"margin: 0px; padding: 0px; font-family: arial, helvetica, sans-serif; font-size: medium;\"\u003e\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e\u003cbr\u003e1. The above data is the maximum load capacity that can be obtained when each linear actuator runs in the vertical direction. The maximum load capacity of the entire synchronous system is the sum of the maximum load capacities of the four linear actuators. If the weight of your equipment (such as a cellar door) is 100kg, and you want to use a linear actuator to open this door, you need to calculate the actual force acting on the linear actuator according to your installation method. This force is usually 2-5 times the weight of the cellar door. If you don't know how to calculate it, please contact us for help.\u003cbr\u003e2. The above is the speed at no load, and the actual working speed will gradually slow down as the load increases. Full load speed is approximately 60-70% of No-load speed.\u003cbr\u003e3. Different speeds correspond to different maximum loads. Please select the right speed according to the speed and maximum load you need.\u003cbr\u003e4. Linear actuators are not recommended for continuous operation under maximum load, we recommend letting it work at about half of the maximum load to get a longer working life.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe information for synchronous controller:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIntroduction:\u003c\/b\u003e\u003cbr\u003eIf you want to use multiple linear actuators to raise and lower an equipment, for example two, three or four electric actuators. Since the high-speed DC motors in electric actuators cannot run at exactly the same speed, so the movement speed of the electric actuator will also be different. When multiple electric actuators work at the same time, their actual speeds cannot be exactly the same. In this case, we can use a synchronous controller to operate multiple linear actuators to rise or fall synchronously. They work completely in sync without any difference.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking principle:\u003c\/b\u003e\u003cbr\u003eIf you want to use a synchronization controller to operate 2, 3 or 4 linear actuators fully synchronously, you will need to add built-in Hall effect sensors for each linear actuator. And when you purchase Hall effect sensors along with linear actuators, we will install Hall effect sensors in the linear actuators during production for you. When 2, 3 or 4 linear actuators are running together, Hall sensor will send Hall signals to the synchronization controller, and the controller will adjust the running speed of each linear actuator, so that all linear actuators run at the exact same speed.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeature:\u003c\/b\u003e\u003cbr\u003eIt can operate four electric linear actuators B7 to run completely synchronously.\u003cbr\u003eWired control via a touch control handle.\u003cbr\u003eWireless control via a remote.\u003cbr\u003eIf use an external antenna, the controller has a farther working range.\u003cbr\u003eThe LED display on the control handle will display the stroke position in real time.\u003cbr\u003eSix touch function buttons: ▲, ▼, 1, 2, 3 and R.\u003cbr\u003eButtons ▲ and ▼ are used to operate the linear actuators extension and retraction.\u003cbr\u003eButtons 1, 2 and 3 are used to automatically operate the linear actuators to three pre-memorized positions.\u003cbr\u003eButton R is the reset button and is used to reset the system in case of an error.\u003cbr\u003eTwo selectable external control functions: manual switch function or limit switch function, please select an external control function you need when ordering.\u003cbr\u003eWith reset button.\u003cbr\u003eWhen linear actuators move close to the end position, they will automatically slow down to protect themselves.\u003cbr\u003eWhen linear actuators are fully retracted, they will retain 1MM of travel to protect themselves.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eParameters:\u003c\/b\u003e\u003cbr\u003eWorking Voltage: 12~36 VDC, suitable for 12V or 24V linear actuator\u003cbr\u003eNumber of connecting linear actuators: 4\u003cbr\u003eMaximum output current: 10A \/ channel\u003cbr\u003eWorking Frequency: 433.92 MHz\u003cbr\u003eTwo selectable control modes: Interlocking mode or Momentary mode, please select a control mode you need when ordering.\u003cbr\u003eWorking Distance: 30m \/ 90ft (theoretically)\u003cbr\u003eCase size: 158 x 150 x 40 mm (6.2 x 5.9 x 1.6 inches)\u003cbr\u003eOperating Temperature: -20°C ~ +70°C\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eCable length of the touch control handle: 2000±10%MM [80 in]\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnection:\u003c\/b\u003e\u003cbr\u003e1) Plug the touch control handle into the port Hand Set of the controller.\u003cbr\u003e2) Plug four linear actuators into the ports CH1, CH2, CH3 and CH4 of the controller.\u003cbr\u003e3) Connect the positive pole of DC power supply to the terminal \u0026lt;+\u0026gt; of the controller, and connect the negative pole of DC power supply to the terminal \u0026lt;-\u0026gt; of the controller.\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eCAUTION: Do not connect AC power directly to the controller!\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOperation:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e1. Operation via the touch control handle:\u003c\/b\u003e\u003cbr\u003eAttention: The handle is operated by touch control. The touch sensitivity can be automatically calibrated when powered on for the first time. Hands are prohibited from touching the handle when powered on to prevent interference with the sensitivity calibration and affect the operating sensitivity.\u003cbr\u003e\u003cbr\u003e1) Press and hold the ▲ button of the control handle, four linear actuators extend outward at the same time; Release the button, four linear actuators stop at the same time.\u003cbr\u003e2) Press and hold the ▼ button of the control handle, four linear actuators retract inward at the same time; Release the button, four linear actuators stop at the same time.\u003cbr\u003e3) Press any button 1, 2, or 3 on the control handle, four linear actuators will automatically move to the position memorized by that button and then automatically stop.\u003cbr\u003eNote: You will need to first memorize three positions into these three buttons.\u003cbr\u003e4) The LED display on the control handle will display the stroke position data in real time. For example, the number 03.5 means that the linear actuators have reached the stroke position of 35MM.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003e2. Operation via the remote control: (The remote control of the synchronous controller has two control modes, interlocking mode and momentary mode, please select a control mode you need when ordering.)\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cb\u003e2.1 Momentary Control Mode:\u003c\/b\u003e\u003cbr\u003e1) Press and hold the button ▲ of the remote control, four linear actuators extend out at the same time; Release the button, four linear actuators stop at the same time.\u003cbr\u003e2) Press and hold the button ▼ of the remote control, four linear actuators retract inward at the same time; Release the button, four linear actuators stop at the same time.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2.2 Interlocking Control Mode:\u003c\/b\u003e\u003cbr\u003e1) Press the button ▲ of the remote control, four linear actuators extend out at the same time, they will reach the maximum stroke at the same time and stop automatically.\u003cbr\u003e2) Press the button ▼ of the remote control, four linear actuators retract inward at the same time, they will fully retract at the same time and stop automatically.\u003cbr\u003e3) During operation, you can also press any button of the remote control to stop four linear actuators at the same time.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTwo selectable external control functions:\u003c\/b\u003e\u003cbr\u003eThe external control terminals offer a choice of two functions: manual switch function or limit switch function. When you choose the manual switch function, you can connect one external manual switch (such as model 0040025) to operate the linear actuators. When you choose the limit switch function, you can connect two external limit switches (such as model 0010010) to automatically stop the linear actuators.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e1. Manual switch function:\u003c\/b\u003e\u003cbr\u003eWhen you choose the manual switch function, you can connect one external manual switch (such as model 0040025) to this controller and then operate the linear actuators through it.\u003cbr\u003e1) The manual switch has an UP button and a DOWN button, and each button has two normally open terminals 3 and 4.\u003cbr\u003e2) Connect two terminals of the UP button to the terminals \u0026lt;UP\u0026gt; and \u0026lt;COM\u0026gt; on the controller, and connect two terminals of the DOWN button to the terminals \u0026lt;DOWN\u0026gt; and \u0026lt;COM\u0026gt; on the controller.\u003cbr\u003e\u003cbr\u003eThe operation:\u003cbr\u003e1.1 Momentary Control Mode:\u003cbr\u003e1) Press and hold the UP button of the manual switch, all linear actuators extend out at the same time; Release the button, all linear actuators stop at the same time.\u003cbr\u003e2) Press and hold the DOWN button of the manual switch, all linear actuators retract inward at the same time; Release the button, all linear actuators stop at the same time.\u003cbr\u003e\u003cbr\u003e1.2 Interlocking Control Mode:\u003cbr\u003e1) Press the UP button of the manual switch, all linear actuators extend out at the same time, they will reach the maximum stroke at the same time and stop automatically.\u003cbr\u003e2) Press the DOWN button of the manual switch, all linear actuators retract inward at the same time, they will fully retract at the same time and stop automatically.\u003cbr\u003e3) During operation, you can also press any button of the manual switch to stop all linear actuators at the same time.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2. Limit switch function:\u003c\/b\u003e\u003cbr\u003eWhen you choose the limit switch function, you can connect two external limit switches with normally open contact (such as model 0010010) to this controller and then automatically stop the linear actuators through it.\u003cbr\u003e1) You can connect two limit switches, each limit switch has two normally open terminals.\u003cbr\u003e2) Connect two normally open terminals of a limit switch to terminals \u0026lt;UP\u0026gt; and \u0026lt;COM\u0026gt; on the controller, connect two normally open terminals of another limit switch to terminals \u0026lt;DOWN\u0026gt; and \u0026lt;COM\u0026gt; on the controller.\u003cbr\u003e\u003cbr\u003eThe operation:\u003cbr\u003e1) When four linear actuators extend outward, if the limit switch is triggered, it will connect two terminals \u0026lt;UP\u0026gt; and \u0026lt;COM\u0026gt;, then four linear actuators will stop automatically.\u003cbr\u003e2) When four linear actuators inward retract, if the limit switch is triggered, it will connect two terminals \u0026lt;DOWN\u0026gt; and \u0026lt;COM\u0026gt;, then four linear actuators will stop automatically.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eHow to memorize three stroke positions:\u003c\/b\u003e\u003cbr\u003e1) The controller can memorize total three stroke positions, and each button memorizes one stroke position.\u003cbr\u003e2) First operate four linear actuators to the first suitable stroke position that you need to store, then press and hold the button 1 of the control handle for about 5 seconds, the stroke value on the LED display will flash. This means that the current stroke position is already stored in button 1. \u003cbr\u003e3) You can continue to store the other two stroke positions into the button 2 and 3 by following the operation above.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eReset Function:\u003c\/b\u003e\u003cbr\u003eWhen the LED display on the control handle shows the fault code, you need to reset the system as follows.\u003cbr\u003eReset operation: Press and hold the \u0026lt;R\u0026gt; button of the control handle or press and hold the \u0026lt;Reset\u0026gt; button on the controller, or press and hold the ▲ and ▼ buttons on the remote control at the same time, until all linear actuators are reset to the bottom, and the LED display on the control handle shows \"00.1\", then release the button.\u003cbr\u003eWhen you have selected a controller with a manual switch function, you can also reset by connecting the RST and COM terminals on the controller.\u003cbr\u003eSpecific Operation: Connect two terminals \u0026lt;RST\u0026gt; and COM\u0026gt;, until all linear actuators are reset to the bottom, and the LED display on the control handle shows \"00.1\", then disconnect two terminals \u0026lt;RST\u0026gt; and \u0026lt;COM\u0026gt;.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePower outage operation:\u003c\/b\u003e\u003cbr\u003eWhen the linear actuators are in the fully retracted state, if there is a power outage, the stroke rods can be manually pulled out or retracted to open or close the cellar door manually.\u003cbr\u003e\u003cbr\u003eWhen the linear actuators are in the extended state, if there is a power outage, the linear actuators will remain stationary. The stroke rods can be manually pulled out to open the cellar door, but the stroke rods cannot be manually retracted to close the cellar door. You need to wait for the power to be restored before you can operate the linear actuators to retract to close the cellar door.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote: After the stroke rods are manually pulled out, they must be manually pushed back to their original positions. This is helpful for the next operation after power is restored.\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e\u003cbr\u003e1. Each linear actuator would require two mounting brackets, one to fix the head of linear actuator and another to fix the bottom of linear actuator. This kit does not contain \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/collections\/fixing-bracket-for-linear-actuator\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003efixed mounting brackets\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e , please buy them from the drop down menu.\u003cbr\u003e2. This linear actuator is compatible with 4 mounting brackets: \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/electric-linear-actuator-fixed-mounting-bracket-b-model-0043002\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eBracket B\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e , \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/electric-linear-actuator-fixed-mounting-bracket-d-model-0043007\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eBracket D\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e , \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/electric-linear-actuator-b-head-fixed-mounting-square-plate-bracket\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eHead Fixed Mount Flat Bracket (Model 0043073)\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e and \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/electric-linear-actuator-b-bottom-fixed-mounting-square-plate-bracket\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eBottom Fixed Mount Flat Bracket (Model 0043074)\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e .\u003cbr\u003e3. The front connector style of the linear actuator can be customized: the default is an open hole connector, which can be customized with slotted connector, internal thread connector, etc. And you can provide drawings for customization. If you need customization, please click \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/linear-actuator-b-and-j-front-mounting-connector-customization\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ehere\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e to purchase the customized option.\u003cbr\u003e4. Linear actuator fisheye connector can be customized and used in conjunction with the internal thread connector. If you need customization, please click \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/linear-actuator-fisheye-connector-for-use-with-internal-thread-connector\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ehere\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e to purchase the customized option.\u003cbr\u003e5. The orientation of the front and rear connectors of the linear actuator is default; we can rotate it 90 degrees during the production according to the customer's needs. If you need to rotate the front connector 90 degrees, please click \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/linear-actuator-b-front-rear-mounting-connector-rotated-90-degrees\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ehere\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e to purchase the rotation option.\u003cbr\u003e6. You need to use a \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/dc-24v-25a-600w-regulated-switching-power-supply-with-110v-220v-ac-input-model-0010137\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eDC24V\/25A\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e or \u003cb\u003e\u003ca href=\"https:\/\/www.electric-linear-actuators.com\/products\/dc-12v-50a-600w-regulated-switching-power-supply-with-110v-220v-ac-input-model-0010132\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eDC12V\/50A\u003c\/span\u003e\u003c\/a\u003e\u003c\/b\u003e switching power supply to power this kit. This kit does not contain this power supply, please buy it from the drop down menu.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduction time:\u003c\/b\u003e\u003cbr\u003eThe linear actuators are the customized products, and these products are not in stock, we need to spend \u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003e3~7 working days\u003c\/span\u003e\u003c\/b\u003e to produce them according to the specified parameters in your order.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eReturn or Exchange:\u003c\/b\u003e\u003cbr\u003eThe Linear Actuators are the customized products, we need to produce them according to the specified parameters in your order, so that we do not accept returns or cancel orders. If customers order unsuitable linear actuators themselves, we also do not accept exchanges, please understand.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eWe can provide 3D CAD model files in STEP format for linear actuators. Please contact us by e-mail if you need them.\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Linear Actuator B7 Synchronous Control Kit","offers":[{"title":"250MM \/ Aluminum Alloy","offer_id":47548247146755,"sku":null,"price":695.75,"currency_code":"USD","in_stock":true},{"title":"250MM \/ Stainless Steel","offer_id":47548247179523,"sku":null,"price":870.55,"currency_code":"USD","in_stock":true},{"title":"300MM \/ Aluminum Alloy","offer_id":47548247212291,"sku":null,"price":718.75,"currency_code":"USD","in_stock":true},{"title":"300MM \/ Stainless Steel","offer_id":47548247245059,"sku":null,"price":902.75,"currency_code":"USD","in_stock":true},{"title":"350MM \/ Aluminum Alloy","offer_id":47548247277827,"sku":null,"price":741.75,"currency_code":"USD","in_stock":true},{"title":"350MM \/ Stainless Steel","offer_id":47548247310595,"sku":null,"price":939.55,"currency_code":"USD","in_stock":true},{"title":"400MM \/ Aluminum Alloy","offer_id":47548247343363,"sku":null,"price":764.75,"currency_code":"USD","in_stock":true},{"title":"400MM \/ Stainless Steel","offer_id":47548247376131,"sku":null,"price":971.75,"currency_code":"USD","in_stock":true},{"title":"450MM \/ Aluminum Alloy","offer_id":47548247408899,"sku":null,"price":787.75,"currency_code":"USD","in_stock":true},{"title":"450MM \/ Stainless Steel","offer_id":47548247441667,"sku":null,"price":1008.55,"currency_code":"USD","in_stock":true},{"title":"500MM \/ Aluminum Alloy","offer_id":47548247474435,"sku":null,"price":810.75,"currency_code":"USD","in_stock":true},{"title":"500MM \/ Stainless Steel","offer_id":47548247507203,"sku":null,"price":1040.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/9334\/7587\/files\/four-cellar-door-linear-actuators-synchronous-control-kit-total-max-thrust-22000n_1.jpg?v=1767927433","url":"https:\/\/www.electric-linear-actuators.com\/products\/four-cellar-door-linear-actuators-synchronous-control-kit-total-max-thrust-22000n","provider":"Electric Linear Actuators Online Store","version":"1.0","type":"link"}